<SEC-DOCUMENT>0001387131-21-010243.txt : 20211215
<SEC-HEADER>0001387131-21-010243.hdr.sgml : 20211215
<ACCEPTANCE-DATETIME>20211022172315
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0001387131-21-010243
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		12
FILED AS OF DATE:		20211022

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Nexa Resources S.A.
		CENTRAL INDEX KEY:			0001713930
		STANDARD INDUSTRIAL CLASSIFICATION:	METAL MINING [1000]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			N4
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		37A AVENUE J.F. KENNEDY
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-1855
		BUSINESS PHONE:		352 26 00 53 43

	MAIL ADDRESS:	
		STREET 1:		37A AVENUE J.F. KENNEDY
		CITY:			LUXEMBOURG
		STATE:			N4
		ZIP:			L-1855

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VM Holding S.A.
		DATE OF NAME CHANGE:	20170804
</SEC-HEADER>
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<P STYLE="text-align: center; font: 12pt Times New Roman, Times, Serif; margin-top: 4.5pt; margin-bottom: 0pt"><IMG SRC="nexa-img01a.gif" ALT="" STYLE="height: 57px; width: 151px"><BR STYLE="clear: both">
</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 4.5pt 0 0 320.6pt">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin-left: 484pt; text-align: left; margin-top: 4.5pt; margin-bottom: 0">October 22, 2021</P>

<P STYLE="font: bold 12pt Times New Roman, Times, Serif; margin: 4.5pt 0 0 15pt"><U>VIA EDGAR TRANSMISSION</U></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0.35pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">George K. Schuler</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Gus Rodriguez</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Division of Corporation Finance</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Office of Energy &amp; Transportation</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">U.S. Securities and Exchange Commission</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">100 F Street, N.E.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Washington, D.C. 20549-4628</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0.25pt 0 0">&nbsp;</P>

<P STYLE="font: bold 12pt Times New Roman, Times, Serif; margin: 0 0 0 51pt">Re:&#9;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Nexa Resources S.A.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0.05pt 110.05pt 0 87pt"><B>Form 20-F for the Fiscal Year Ended December 31,
2020 Filed March 23, 2021</B></P>

<P STYLE="font: bold 12pt Times New Roman, Times, Serif; margin: 0 0 0 87pt">File No. 001-38256</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0.3pt 0 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 15pt">Dear Mr. Schuler and Mr. Rodriguez:</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0.45pt 0 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 11.15pt 0 14.95pt; text-indent: 0.5in">Set forth below are the responses
of Nexa Resources S.A. (&#8220;Nexa&#8221; or the &#8220;Company&#8221;) to the comments of the staff (the &#8220;Staff&#8221;) of the
Division of Corporation Finance of the Securities and Exchange Commission (the &#8220;Commission&#8221;) in its letter dated September
17, 2021 with respect to Nexa&#8217;s annual report on Form 20-F for the fiscal year ended December 31, 2020 (the &#8220;2020 Form 20-F&#8221;).</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 11.15pt 0 14.95pt; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 11.15pt 0 14.95pt; text-indent: 0.5in">In response to the Staff&#8217;s
comments related to the disclosure within Part I of the 2020 Form 20-F, the Company proposes to revise the disclosure to be included in
its annual report for the fiscal year ended December 31, 2021 (the &#8220;2021 Form 20-F&#8221;) as described in each response. With respect
to the comments related to the technical report summaries filed as exhibits to the 2020 Form 20-F, the Company has described below how
the qualified persons intend to revise the related disclosure, and subject to any further comments from the Staff in response to this
letter, the Company intends to amend its 2020 Form 20-F to file revised versions of each technical report summary incorporating the revisions
described below.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 11.15pt 0 14.95pt; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 28.05pt 0 15pt; text-indent: 0.5in">For your convenience, the text of the
Staff&#8217;s comments is set forth in bold below, followed in each case by Nexa&#8217;s response. Unless otherwise indicated, all page
references in the responses set forth below are to the pages of the clean copy of the 2020 Form 20-F.</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 28.05pt 0 15pt; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page 2 of 27</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 28.05pt 0 15pt; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Form 20-F</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Cerro Lindo, page 41</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 12pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>1.</B></TD><TD><B>We note you have not disclosed the location of your material properties and/or projects within one mile as required by Item 1304
(b)(1)(i) of Regulation S-K. Please revise your disclosure to disclose the location of your material properties and/or development projects
within one mile using a commonly recognizable coordinate system.</B></TD></TR></TABLE>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">In response to the Staff&#8217;s comment, the Company will revise
the disclosure to be included in its annual report for the fiscal year ended December 31, 2021 (&#8220;2021 Form 20-F&#8221;) as illustrated
below for the disclosure relating to the Cerro Lindo mine. Similar disclosure will be included for the Company&#8217;s other material
properties.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in; text-indent: 0in">&#8220;The Cerro Lindo mine is an underground,
polymetallic mine located in the Chav&iacute;n District, Chincha Province, Peru, approximately 268 km southeast of Lima and 60 km from
the coast. Access from Lima is available via the paved Pan American Highway south to Chincha, and then via an unpaved road up the Topara
River valley to the mine site. Internal roadways connect the various mine site components. <FONT STYLE="color: blue">The approximate coordinates
of the mine are 392,780m East and 8,554,165m North, using the Universal Transverse Mercator (UTM)_WGS84 datum and the project site is
located at an average elevation of</FONT> <FONT STYLE="color: red"><STRIKE>The site is located at an average elevation of</STRIKE></FONT>
2,000 meters above sea level.&#8221;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Mineral Reserves and Mineral Resources, page 44</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 12pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><B>2.</B></TD><TD><B>We note you have not disclosed your metallurgical recovery to determine reserves in your Form 20-F filing and Exhibits 15.1, 15.2,
15.3 and 15.4 as required by Item 1304 (d)(1) of Regulation S-K. Please revise your disclosure, and obtain and file revised exhibits,
to disclose the metallurgical recovery used to determine your reserves, similar to the disclosure found with your exhibit&#8217;s cutoff
grade and NSR calculations.</B></TD></TR></TABLE>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">In response to the Staff&#8217;s comment, the Company will revise
the disclosure to be included in its 2021 Form 20-F as illustrated below for the disclosure relating to mineral reserves at the Cerro
Lindo mine. Similar disclosure will be included for the metallurgical recoveries relating to mineral resources at the Cerro Lindo mine,
as well as metallurgical recoveries relating to mineral reserves and mineral resources at the Company&#8217;s other material properties.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in; text-indent: 0.25in">&#8220;The Cerro Lindo Mineral
Reserves estimates in the table above are based on costs and modifying factors from the Cerro Lindo mine. Mining methods include
sub-level open stoping (&#8220;SLS&#8221;) for the majority of the Mineral Reserves, and some sill pillar recovery using cut and
fill (&#8220;C&amp;F&#8221;) methods. Mineral Reserves were reported using NSR cut-off values of US$33.56/t processed for SLS and
US$49.90/t processed for C&amp;F, respectively. A number of incremental stopes (down to US$26.16/t NSR value) are included in the
estimate. A minimum mining width of 5.0 and 4.0 meters was used for SLS and C&amp;F methods,</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in; text-indent: 0.25in"></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Value: 3; Name: PageNo -->3<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in"></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.25in">respectively, inclusive of recovery
losses and dilution. The net smelter return (&#8220;NSR&#8221;) cut-off value is determined using the mineral reserve metal prices,
metal recoveries, concentrate transport, treatment and refining costs, as well as mine operating costs. Metal prices used for
mineral reserves are based on consensus, long term forecasts from banks, financial institutions and other sources. Mineral reserves
are estimated using average long-term metal prices of zinc: US$2,494.90/t (US$1.13/lb); lead: US$1,956.00/t (US$0.89/lb); copper:
US$6,457.90/t (US$2.93/lb) and silver: US$16.85/oz. <FONT STYLE="color: blue">Metallurgical recoveries are accounted for in NSR
calculations based on historical processing data, and are variable as a function of head grade.&nbsp;Recoveries at Life of Mine
average head grade are 86.3% for Cu, 88.13% for Zn, 68.58% for Pb, and 68.78% for Ag.</FONT> The current LOM plan continues to
2029.&#8221;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in; text-indent: 0.25in">&nbsp;</P>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">In addition, the Company intends to amend the 2020 Form 20-F
to file revised versions of each technical report summary to provide the required metallurgical recovery. For the Staff&#8217;s benefit,
the Company has included as Annex A to this letter an example for each material property of the revised disclosure that the qualified
persons of each of the technical report summaries intend to include in the tables summarizing mineral reserves of the exhibits. Similar
disclosures with respect to metallurgical recoveries will be included throughout the technical reports as appropriate.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Mineral Reserves and Mineral Resources, page 45</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 12pt"><B>3.</B></FONT></TD><TD><FONT STYLE="font-size: 12pt"><B>We note you report your resources and reserves on a 100% basis instead of by your ownership basis
as required by Item 1303 (b)(3)(iii) of Regulation S-K. Please revise your disclosure, and obtain and file revised exhibits, to disclose
your resources and reserves only for the portion of the resources or reserves attributable to your interest in the property.</B></FONT></TD></TR></TABLE>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">In response to the Staff&#8217;s comment, in its 2021 Form 20-F
the Company will revise the mineral reserves and mineral resources tables, which appear on pages 44 to 45, 48, 52 to 53, 60 to 61 and
83 to 88 of the 2020 Form 20-F, to provide for the tabular resources and reserves disclosure on both a 100% basis and adjusted to reflect
the Company&#8217;s ownership interest in each mine. In addition, the Company intends to amend the 2020 Form 20-F to file revised versions
of each technical report summary that will include similar tabular disclosure of mineral reserves and mineral resources adjusted to reflect
the Company&#8217;s ownership interest in each mine.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">For the Staff&#8217;s benefit, the Company has included as Annex
B to this letter an example of the revised disclosure with respect to mineral reserves and resources at each of the Company&#8217;s material
properties and with respect to summary data on mineral reserves and resources that will be included in the 2021 Form 20-F. Similar disclosures
will be included by the qualified persons in each of the technical report summaries to be included in the amended 2020 Form 20-F that
the Company intends to file.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>


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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Exhibits 15.1, 15.2, 15.3 and 15.4</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Zinc Price Outlook, Section 16, page 2</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 12pt"><B>4.</B></FONT></TD><TD><FONT STYLE="font-size: 12pt"><B>We note your zinc and copper price analysis in this section. Please provide a similar analysis for
lead and/or silver in all your exhibits, indicating when these forecasts were prepared, consultants utilized, and the general sources
of information, such as price forecasts prepared by banking interests to develop a consensus price. See Item 601 (b)(96)(B)(16) of Regulation
S-K.</B></FONT></TD></TR></TABLE>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">In response to the Staff&#8217;s comment, the Company intends
to amend the 2020 Form 20-F to file revised versions of each technical report summary to provide the requested disclosure on lead and/or
silver prices. For the Staff&#8217;s benefit, the Company has included as Annex C to this letter examples of the revised disclosure that
the qualified persons of each of the technical report summaries intend to include in the revised versions of the exhibits.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Exhibits 15.1, 15.2, 15.3 and 15.4</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Capital and Operating Costs, Section 18, page 1</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 12pt"><B>5.</B></FONT></TD><TD><FONT STYLE="font-size: 12pt"><B>We note the technical report&#8217;s capital and operating costs do not disclose an estimate of accuracy
as required by Item 601 (b)(96)(B)(18)(i) of Regulation S-K. Please obtain and file revised technical reports to disclose the estimate
of accuracy.</B></FONT></TD></TR></TABLE>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">In response to the Staff&#8217;s comment, the Company intends
to amend the 2020 Form 20-F to file revised versions of each technical report summary. For the Staff&#8217;s benefit, the Company has
included as Annex D to this letter examples of the revised disclosure that the qualified persons of each of the technical report summaries
intend to include in the revised versions of the exhibits.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center">* * *</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->5<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 4.5pt 13.45pt 0 15pt; text-indent: 0.5in">If you have questions or require
additional information, please do not hesitate to contact me at + 55 11 94237-6611.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 4.5pt 0 0 440pt">Very truly yours,</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0.5pt 0 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 4.5pt 0 0 440pt"><U>/s/ Rodrigo N. Menck</U></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 440pt">Rodrigo N. Menck</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 440pt">Senior Vice President Finance and <BR>
Group Chief Financial Officer
of Nexa<BR>
 Resources S.A.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0.45pt 0 0">&nbsp;</P>

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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 7%; padding-left: 10pt; font: 11pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 12pt">cc:</FONT></TD>
    <TD STYLE="width: 93%">
    <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 11pt">Nicolas Grabar</P>
    <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 11pt">Francesca L. Odell</P>
    <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 11pt">Fernando A. Martinez</P>
    <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in">Cleary Gottlieb Steen &amp; Hamilton LLP</P></TD></TR>
  </TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: right"><B>ANNEX A</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: right"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Cerro Lindo</U></B></P>

<P STYLE="color: #059AC4; font: bold 8pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: center">Table 1&#45;3:&#9;Summary of Mineral
Reserves &#8211; December 31, 2020</P>

<P STYLE="color: #059AC4; font: bold 8pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: center">Nexa Resources S.A. &#8211; Cerro
Lindo Mine</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="2" STYLE="border-top: #034F8B 1.5pt solid; border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Category</FONT></TD>
    <TD ROWSPAN="2" STYLE="border-top: #034F8B 1.5pt solid; border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Tonnage<BR>
(Mt)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-top: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Grade</FONT></TD>
    <TD COLSPAN="5" STYLE="border-top: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Contained Metal</FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(%&nbsp;Zn)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(%&nbsp;Pb)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(%&nbsp;Cu)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(g/t&nbsp;Ag)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 t Zn)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 t Pb)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 t Cu)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 oz Ag)</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">23.55</FONT></TD>
    <TD STYLE="width: 76px; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.71</FONT></TD>
    <TD STYLE="width: 76px; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.23</FONT></TD>
    <TD STYLE="width: 76px; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.60</FONT></TD>
    <TD STYLE="width: 76px; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">20.86</FONT></TD>
    <TD STYLE="width: 76px; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">402.0</FONT></TD>
    <TD STYLE="width: 76px; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">53.0</FONT></TD>
    <TD STYLE="width: 76px; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">142.1</FONT></TD>
    <TD STYLE="width: 76px; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">15,793</FONT></TD>
    <TD STYLE="width: 0px; font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">18.22</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.08</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.18</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.62</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">21.58</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">197.5</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">32.1</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">113.7</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">12,641</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Total</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">41.76</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.44</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.20</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.61</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">21.17</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">599.5</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">85.1</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">255.8</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">28,434</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 3pt">Notes:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The definitions for Mineral Reserves in S-K 1300 were followed for Mineral Reserves which are consistent
with CIM (2014) definitions. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The Mineral Reserve estimate is reported on an 80.16% Nexa attributable ownership basis.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves are estimated at NSR cut-off values of US$33.56/t processed for SLS and US$49.90/t processed
for C&amp;F stoping. A number of incremental stopes (down to US$26.16/t NSR value) are included in the estimate. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves are estimated using average long term metal prices of Zn: US$2,494.90/t (US$1.13/lb);
Pb: US$1,956.00/t (US$0.89/lb); Cu: US$6,457.90/t (US$2.93/lb); Ag: US$16.85/oz with all costs in US dollars.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt; background-color: yellow">5.</FONT></TD><TD><FONT STYLE="font-size: 8pt; background-color: yellow">Metallurgical recoveries are accounted for in the NSR calculations based on
historical processing data and are variable as a function of head grade. Recoveries at LOM average head grades are 86.3% for Cu, 88.1%
for Zn, 68.6% for Pb, and 68.8% for Ag.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">6.</FONT></TD><TD><FONT STYLE="font-size: 8pt">A minimum mining width of 5.0 m and 4.0 m was used for SLS stopes and C&amp;F stopes respectively. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">7.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Bulk density varies depending on mineralization domain. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">8.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>El Porvenir</U></B></P>

<P STYLE="color: #059AC4; font: bold 8pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: center"><A NAME="a_Toc62737012"></A><A NAME="a_Toc85468104"></A><A NAME="a_Toc64555622"></A><A NAME="a_Ref62809748"></A>Table
1&#45;4:&#9;Summary of Mineral Reserves &#8211; December 31, 2020</P>

<P STYLE="color: #059AC4; font: bold 8pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: center">Nexa Resources S.A. &#8211; El
Porvenir Mine</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="2" STYLE="border-top: #034F8B 1.5pt solid; border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Category</FONT></TD>
    <TD ROWSPAN="2" STYLE="border-top: #034F8B 1.5pt solid; border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Tonnage<BR>
(000 t)</FONT></TD>
    <TD COLSPAN="4" STYLE="border-top: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Grade</FONT></TD>
    <TD COLSPAN="4" STYLE="border-top: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Contained Metal</FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(%&nbsp;Zn)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(%&nbsp;Pb)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(%&nbsp;Cu)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(g/t&nbsp;Ag)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 t Zn)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 t Pb)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 t Cu)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 oz Ag)</FONT></TD></TR>
  <TR>
    <TD STYLE="width: 16%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="width: 10%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3,017</FONT></TD>
    <TD STYLE="width: 9%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3.76</FONT></TD>
    <TD STYLE="width: 9%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.98</FONT></TD>
    <TD STYLE="width: 9%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.25</FONT></TD>
    <TD STYLE="width: 9%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">62.9</FONT></TD>
    <TD STYLE="width: 9%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">113.3</FONT></TD>
    <TD STYLE="width: 9%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">29.6</FONT></TD>
    <TD STYLE="width: 10%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">7.6</FONT></TD>
    <TD STYLE="width: 10%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">6,094</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">8,085</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3.74</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.85</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.22</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">62.8</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">302.7</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">68.5</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">18.0</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">16,324</FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Total</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">11,102</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3.75</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.88</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.23</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">62.8</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">416.0</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">98.1</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">25.6</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">22,418</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 3pt">Notes:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The definitions for Mineral Reserves in S-K 1300 were followed for Mineral Reserves which are consistent
with CIM (2014) definitions.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves are reported on an 80.16% Nexa attributable ownership basis.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves are estimated at cut-off grades depending on the zone and mining method.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves are estimated using average long term prices of Zn: US$2,494.90/t (US$1.13/lb); Pb:
US$1,956.00/t (US$0.89/lb); Cu: US$6,457.90/t (US$2.93/lb); Ag: US$16.85/oz.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-size: 8pt; background-color: yellow">5.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 8pt; background-color: yellow">Metallurgical
recoveries are accounted for in the NSR calculations based on historical processing data and are variable as a function of head grade.
Recoveries at the LOM average head grades are 89.6% for Zn, 79.2% for Pb, 14.3% for Cu, and 77.5% for Ag.</FONT></TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">6.</FONT></TD><TD><FONT STYLE="font-size: 8pt">A minimum mining width of 5 m was used.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">7.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Density is 3.12 t/m<SUP>3</SUP>.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">8.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->7<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Vazante</U></B></P>

<P STYLE="color: #059AC4; font: bold 8pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: center"><A NAME="a_Toc85470645"></A><A NAME="a_Toc64295327"></A><A NAME="a_Ref61896061"></A>Table
1&#45;3:&#9;Summary of Mineral Reserves as of December 31, 2020</P>

<P STYLE="color: #059AC4; font: bold 8pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: center">Nexa Resources S.A. &#8211; Vazante
Polymetallic Operations</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="2" STYLE="border-top: #034F8B 1.5pt solid; border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Deposit/Category</FONT></TD>
    <TD ROWSPAN="2" STYLE="border-top: #034F8B 1.5pt solid; border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Tonnes<BR>
(000 t)</FONT></TD>
    <TD COLSPAN="3" STYLE="border-top: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Grade</FONT></TD>
    <TD COLSPAN="3" STYLE="border-top: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Contained Metal</FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(% Zn)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(% Pb)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(g/t Ag)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 t Zn)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 t Pb)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(000 oz Ag)</FONT></TD></TR>
  <TR>
    <TD STYLE="width: 25%; padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Lumiadeira</B></FONT></TD>
    <TD STYLE="width: 10%; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="width: 8%; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="width: 9%; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="width: 11%; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; width: 12%; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; width: 13%; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3,410</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">8.93</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.22</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">20.78</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">304.5</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">7.6</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">2,278</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3,260</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">8.86</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.22</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">18.44</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">289.0</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">7.2</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1,933</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Proven &amp; Probable</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>6,670</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.90</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.22</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>19.64</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>593.5</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>14.8</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>4,211</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Sucuri</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3,408</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">8.41</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.26</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">13.74</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">286.8</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">9.0</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1,505</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1,225</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">7.17</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.26</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">11.40</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">87.9</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3.2</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">449</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Proven &amp; Probable</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>4,633</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.09</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.26</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>13.12</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>374.7</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>12.3</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1,954</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Extremo Norte</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1,621</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">7.25</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.24</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">6.57</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">117.5</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">4.0</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">342</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3,760</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">9.34</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.18</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">7.11</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">351.0</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">6.9</FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">860</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Proven &amp; Probable</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>5,381</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.71</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.20</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>6.95</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>468.6</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>10.9</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1,202</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Total</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Proven</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8,439</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.40</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.24</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>15.20</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>708.8</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>20.6</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>4,125</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Probable</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8,245</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.83</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.21</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>12.23</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>727.9</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>17.4</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3,241</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Proven &amp; Probable</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>16,684</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.61</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.23</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>13.73</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1,436.7</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>38.0</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>7,367</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 3pt">Notes:</P>

<P STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-size: 8pt">1.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 8pt">The definitions for Mineral Reserves in S-K 1300 were followed for Mineral Reserves which are consistent
with CIM (2014) definitions.</FONT></P>

<P STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-size: 8pt">2.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 8pt">The Mineral Reserve estimate is reported on a 100% Nexa attributable ownership basis.</FONT></P>

<P STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-size: 8pt">3.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 8pt">Mineral Reserves are estimated at a cut-off NSR value of US$47.49/t processed.</FONT></P>

<P STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-size: 8pt">4.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 8pt">Mineral Reserves are estimated using average LOM metal prices of US$2,494.90/t Zn, US$1,956.00/t&nbsp;Pb
and US$16.85/oz Ag. </FONT></P>

<P STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-size: 8pt; background-color: yellow">5.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt; background-color: yellow">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 8pt; background-color: yellow">Metallurgical recoveries are accounted for in the NSR calculations based
on historical processing data and are variable as a function of head grade. Recoveries at the LOM average head grades are 83.6% for Zn,
22.3% for Pb, and 42.0% for Ag. An average long term Brazilian Real (R$)/US$ exchange rate of 4.84 was used.</FONT></P>

<P STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-size: 8pt">6.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 8pt">A minimum mining width of 4.0 m was used.</FONT></P>

<P STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-size: 8pt">7.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 8pt">Bulk density is 3.1 t/m<SUP>3</SUP>.</FONT></P>

<P STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin: 0 0 0 0.5in; text-align: justify; text-indent: -0.25in"><FONT STYLE="font-size: 8pt">8.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 7pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</FONT><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>


<!-- Field: Page; Sequence: 7 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->8<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Aripuan&atilde;</U></B></P>

<P STYLE="color: #059AC4; font: bold 8pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: center"><A NAME="a_Toc85468404"></A><A NAME="a_Toc64036140"></A><A NAME="a_Ref60814438"></A>Table
1&#45;3:&#9;Summary of Mineral Reserves &#8211; September 30, 2020</P>

<P STYLE="color: #059AC4; font: bold 8pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: center">Nexa Resources S.A. &#8211; Aripuan&atilde;
Zinc Project</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="2" STYLE="border-top: #034F8B 1.5pt solid; border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Deposit/Category</FONT></TD>
    <TD ROWSPAN="2" STYLE="border-top: #034F8B 1.5pt solid; border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Tonnes<BR>
(Mt)</FONT></TD>
    <TD COLSPAN="5" STYLE="border-top: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">Grade</FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(% Zn)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(% Pb)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(% Cu)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(g/t Au)</FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1.5pt solid; padding: 3pt 5.4pt; text-align: center; font-weight: bold"><FONT STYLE="font-size: 8pt">(g/t Ag)</FONT></TD></TR>
  <TR>
    <TD COLSPAN="7" STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Arex</B></FONT></TD></TR>
  <TR>
    <TD STYLE="width: 30%; padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="width: 12%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">4.21</FONT></TD>
    <TD STYLE="width: 11%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">2.97</FONT></TD>
    <TD STYLE="width: 11%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.07</FONT></TD>
    <TD STYLE="width: 11%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.65</FONT></TD>
    <TD STYLE="width: 13%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.45</FONT></TD>
    <TD STYLE="width: 12%; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">33.83</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.10</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.99</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.69</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.75</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.75</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">23.97</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Proven &amp; Probable</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>5.31</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>2.77</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.99</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.67</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.52</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>31.78</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="7" STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Link</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.37</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">4.63</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.73</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.13</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.27</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">37.78</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">5.34</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3.95</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.32</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.22</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.32</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">32.31</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Proven &amp; Probable</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>6.71</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>4.09</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.40</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.20</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.31</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>33.42</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="7" STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Ambrex</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">4.49</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">4.18</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.59</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.05</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.15</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">37.55</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">6.98</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3.59</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.44</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.12</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.27</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">34.81</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Proven &amp; Probable</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>11.47</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.82</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.50</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.09</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.22</B></FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>35.88</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
  <TR>
    <TD COLSPAN="7" STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Total</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">10.08</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3.74</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.39</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.31</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.29</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">36.02</FONT></TD></TR>
  <TR>
    <TD STYLE="padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">13.42</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">3.60</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">1.33</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.21</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">0.33</FONT></TD>
    <TD STYLE="padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">32.93</FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: left"><FONT STYLE="font-size: 8pt"><B>Proven &amp; Probable</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>23.50</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.66</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.36</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.25</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.31</B></FONT></TD>
    <TD STYLE="border-bottom: #034F8B 1pt solid; padding: 3pt 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>34.25</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 3pt">Notes:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The definitions for Mineral Reserves in S-K 1300 were followed for Mineral Reserves which are consistent
with CIM (2014) definitions.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The Mineral Reserve estimate is reported on a 100% ownership basis.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves are estimated at a break-even cut-off value of NSR = US$45.00/t processed. Some incremental
material with values between US$40/t and US$45/t was included.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves are estimated using an average long-term zinc price of US$1.13/lb Zn, a long-term lead
price of US$0.89/lb Pb, a long-term copper price of US$2.93/lb Cu, a long-term silver price of $16.85/oz Ag, and a long-term gold price
of US$1,538/oz Au. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt; background-color: yellow">5.</FONT></TD><TD><FONT STYLE="font-size: 8pt; background-color: yellow">Metallurgical recoveries are accounted for in the NSR calculations based on
metallurgical test work and are variable as a function of head grade. Recoveries at the LOM average head grades for stratabound material
are 89.4% for Zn, 83.4% for Pb, 67.5% for Cu, 70.0% for Ag, and 70.0% for Au. Recoveries at the LOM average head grades for stringer material
are 88.8% for Cu, 50.0% for Ag, and 50.0% for Au.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 9pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">6.</FONT></TD><TD><FONT STYLE="font-size: 8pt">A minimum mining width of 4 m was used.</FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">7.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>


<!-- Field: Page; Sequence: 8 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->9<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: right"><B>ANNEX B</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Cerro Lindo</U></B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Cerro Lindo &#8211; Year End Mineral Reserves as
of December 31, 2020 (<FONT STYLE="background-color: yellow">on a 100% ownership basis</FONT>)</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Ownership (%)</B><SUP>(2)</SUP></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Tonnage</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-right: black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="6" STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="3" STYLE="width: 17%; border-bottom: black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16%</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">29.37</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.71</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">0.60</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">20.9</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">0.23</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 6%; border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">501.5</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">177.3</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">19,702</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">66.1</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 1%; font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">22.73</FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.08</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.62</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">21.5</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.18</FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">246.4</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">141.8</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">15,770</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">40.0</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>52.10</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.44</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.61</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>21.2</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.20</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>747.9</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>319.1</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>35,472</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>106.1</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>Notes:</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Reserves, which also are consistent
with the CIM (2014) definitions. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves data presented in this table represents 100% of the Mineral Reserves estimates for the
property. <FONT STYLE="color: red"><STRIKE>Please refer to our ownership percentage for the amounts attributable to our ownership interest
in the property.</STRIKE></FONT></FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The qualified person for mineral reserves is SLR Consulting, an independent mining consulting firm.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Cerro Lindo &#8211; Year End Mineral Reserves as
of December 31, 2020 (<FONT STYLE="background-color: yellow">on a 80.16% Nexa attributable ownership basis</FONT>).</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Tonnage</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-right: black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="6" STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; width: 10%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 16%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">23.55</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.71</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">0.60</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">20.9</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">0.23</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 7%; border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">401.9</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">142.1</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">15,793</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">53,0</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 1%; font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">18.22</FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.08</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.62</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">21.5</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.18</FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">197.5</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">113.7</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">12,641</FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">32,1</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>41.76</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.44</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.61</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>21.2</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.20</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>599.5</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>255.8</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>28,434</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>85,1</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>Notes:</B></P>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Reserves, which also are consistent
with the CIM (2014) definitions. </FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves data presented in this table are reported on 80,16% Nexa attributable ownership. </FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The qualified person for mineral reserves is SLR Consulting, an independent mining consulting firm.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><A NAME="a_Ref61865389"></A><A NAME="a_Toc61622204"></A><A NAME="a_Toc85462381"></A><A NAME="a_Toc64048400"></A>Cerro
Lindo &#8211; Year End Mineral Resources as of December 31, 2020 (<FONT STYLE="background-color: yellow">on a 100% Nexa ownership basis</FONT>)</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Ownership (%)</B><SUP>(2)</SUP></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Tonnage</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="width: 19%; border-bottom: black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16%</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">Measured</FONT></TD>
    <TD STYLE="width: 8%; border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">4.40</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">2.00</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">0.67</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">19.6</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">0.20</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 6%; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">87.8</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">29.4</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">2,774</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">8.9</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  <TR>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Indicated</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.46</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.37</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.45</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">25.0</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.25</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">47.3</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">15.5</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2,776</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">8.8</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  <TR>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>7.86</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.72</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.57</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>22.0</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.22</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>135.1</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>44.9</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>5,550</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>17.6</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">8.71</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.28</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.33</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">31.2</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.35</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">111.1</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">29.1</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">8,748</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">30.6</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0"><B>Notes:</B></P>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. </FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Resources data presented in this table represents 100% of the Mineral Resources estimates for
the property. <FONT STYLE="color: red"><STRIKE>Please refer to our ownership percentage for the amounts attributable to our ownership
interest in the property.</STRIKE></FONT></FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Resources are reported exclusive of those mineral resources that were converted to mineral reserves,
and mineral resources are not mineral reserves and do not have demonstrated economic viability. </FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">5.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The qualified person for mineral resources is SLR Consulting, an independent mining consulting firm.</FONT></TD></TR></TABLE>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->10<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Cerro Lindo &#8211; Year End Mineral Resources as
of December 31, 2020 (<FONT STYLE="background-color: yellow">on a 80.16% Nexa attributable ownership basis</FONT>)</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" ALIGN="CENTER" STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; width: 90%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Tonnage</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD></TR>
  <TR>
    <TD STYLE="width: 17%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">Measured</FONT></TD>
    <TD STYLE="width: 10%; border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.53</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">2.00</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">0.67</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">19.6</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">0.20</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 6%; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">70.4</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">23.6</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">2,224</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">7.1</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; font: 11pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  <TR>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Indicated</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2.77</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.37</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.45</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">25.0</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.25</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">37.9</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">12.5</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2,225</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">7.0</FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  <TR>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>6.30</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.72</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.57</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>22.0</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.22</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>108.3</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>36.0</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>4,448</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>14.1</B></FONT></TD>
    <TD STYLE="font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">6.98</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.28</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.33</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">31.2</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.35</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">89.1</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">23.3</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">7,012</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">24.5</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 11pt Times New Roman, Times, Serif; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0"><B>Notes:</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Resources Tonnes and Contained Metal presented in this table are reported on 80.16% Nexa attributable
ownership. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Resources are reported exclusive of those mineral resources that were converted to mineral reserves,
and mineral resources are not mineral reserves and do not have demonstrated economic viability. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">5.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The qualified person for mineral resources is SLR Consulting, an independent mining consulting firm.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Calibri, Helvetica, Sans-Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>El Porvenir</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>El Porvenir &#8211; Year End Mineral Reserves as
of December 31, 2020 (<FONT STYLE="background-color: yellow">on a 100% ownership basis</FONT>)</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Ownership (%)</B><SUP>(2)</SUP></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Tonnage</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-right: black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD></TR>
  <TR>
    <TD ROWSPAN="3" STYLE="width: 18%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16%</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.76</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.76</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.25</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">62.9</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.98</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 6%; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">141.3</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">9.5</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">7,602</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">36.9</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">10.09</FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.74</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.22</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">62.8</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.85</FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">377.6</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">22.4</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">20,364</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">85.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>13.85</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.75</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.23</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>62.8</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.88</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>518.9</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>31.9</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>27,966</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>122.4</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>Notes:</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Reserves, which also are consistent
with the CIM (2014) definitions. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Reserves data presented in this table represents 100% of the mineral reserves estimates for the
property. <FONT STYLE="color: red"><STRIKE>Please refer to our ownership percentage for the amounts attributable to our ownership interest
in the property.</STRIKE></FONT></FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The qualified person for Mineral Reserves is SLR Consulting, an independent mining consulting firm.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>El Porvenir &#8211; Year End Mineral Reserves as
of December 31, 2020 (<FONT STYLE="background-color: yellow">on a 80.16% Nexa attributable ownership basis</FONT>)</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" ALIGN="CENTER" STYLE="font: 11pt Times New Roman, Times, Serif; width: 95%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Tonnage</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-right: black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; width: 10%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 17%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.01</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.76</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.25</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">62.9</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.98</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 7%; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">113.2</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">7.6</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">6,094</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">29.5</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">8.09</FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.74</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.22</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">62.8</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.85</FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">302.8</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">17.9</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">16,323</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">68.6</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>11.10</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.75</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.23</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>62.8</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.88</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>416.0</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>25.5</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>22,417</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>98.1</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>Notes:</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Reserves, which also are consistent
with the CIM (2014) definitions. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Resources Tonnes and Contained Metal are reported on 80.16% Nexa attributable ownership. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The qualified person for Mineral Reserves is SLR Consulting, an independent mining consulting firm.</FONT></TD></TR></TABLE>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>


<!-- Field: Page; Sequence: 10 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font-size: 10pt"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 33%">&nbsp;</TD><TD STYLE="width: 34%">&nbsp;</TD><TD STYLE="width: 33%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->11<!-- Field: /Sequence --> of 27</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>El Porvenir &#8211; Year End Mineral Resources as
of December 31, 2020 (<FONT STYLE="background-color: yellow">on a 100% ownership basis</FONT>)</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Ownership (%)</B><SUP>(2)</SUP></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Tonnage</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="6" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="width: 22%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16%</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Measured</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.23</FONT></TD>
    <TD STYLE="width: 5%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2.59</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.23</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">63.5</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.99</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 6%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">6.0</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.5</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">471</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2.3</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 1%">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.33</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2.93</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.20</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">63.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.89</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">39.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2.6</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2,715</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">11.9</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.56</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>2.87</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.20</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>63.4</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.91</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>45.0</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3,186</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>14.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt"><FONT STYLE="font-size: 8pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">8.47</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.60</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.23</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">78.4</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.95</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">305.0</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">19.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">21,345</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">80.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0"><B>Notes:</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Resources data presented in this table represents 100% of the mineral resources estimates for
the property. <FONT STYLE="color: red"><STRIKE>Please refer to our ownership percentage for the amounts attributable to our ownership
interest in the property.</STRIKE></FONT></FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Resources are reported exclusive of those mineral resources that were converted to mineral reserves,
and mineral resources are not mineral reserves and do not have demonstrated economic viability. </FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">5.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The qualified person for Mineral Resources is SLR Consulting, an independent mining consulting firm.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0"><B><I>&nbsp;</I></B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>El Porvenir &#8211; Year End Mineral Resources as
of December 31, 2020 (<FONT STYLE="background-color: yellow">on a 80.16% Nexa attributable ownership basis</FONT>)</B></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" ALIGN="CENTER" STYLE="font: 11pt Times New Roman, Times, Serif; width: 95%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Tonnage</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="6" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="width: 12%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Measured</FONT></TD>
    <TD STYLE="width: 11%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.18</FONT></TD>
    <TD STYLE="width: 6%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2.59</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.23</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">63.5</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.99</FONT></TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 8%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">4.8</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.4</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">378</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.8</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="width: 1%">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">1.07</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2.93</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.20</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">63.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.89</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">31.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2.1</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">2,176</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">9.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.25</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>2.87</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.20</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>63.4</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.91</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>36.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>2.6</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>2,554</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>11.4</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>-</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">6.79</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">3.60</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.23</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">78.4</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">0.95</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">244.5</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">15.9</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">17,110</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">64.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0"><B>Notes:</B></P>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">1.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. </FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">2.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Resources are reported on 80.16% Nexa attributable ownership. </FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">3.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Mineral Resources are reported exclusive of those mineral resources that were converted to mineral reserves,
and mineral resources are not mineral reserves and do not have demonstrated economic viability. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">4.</FONT></TD><TD><FONT STYLE="font-size: 8pt">Numbers may not add due to rounding.</FONT></TD></TR></TABLE>

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<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">5.</FONT></TD><TD><FONT STYLE="font-size: 8pt">The qualified person for Mineral Resources is SLR Consulting, an independent mining consulting firm.</FONT></TD></TR></TABLE>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Vazante</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">The tables in this section will not change because Mineral Reserves are
reported on a 100% ownership basis.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Aripuan&atilde;</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">The tables in this section will not change because Mineral Reserves are
reported on a 100% ownership basis.</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->12<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><A NAME="a_Toc63174704"></A> <B><U>Mineral Reserves</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">The following table shows our estimates of Mineral
Reserves (<FONT STYLE="background-color: yellow">100% ownership basis</FONT>) for our material mining properties as of December 31, 2020
(unless otherwise indicated below) prepared in accordance with Subpart 1300 of Regulation S-K. The Morro Agudo mine, Atacocha underground
mine and Atacocha open pit mine do not have known Mineral Reserves under Subpart 1300 of Regulation S-K.</P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD COLSPAN="4" STYLE="border-right: black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="5" STYLE="border-right: black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal </B></FONT></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Ownership Interest</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Total<SUP>(1)</SUP></B></FONT></TD>
    <TD ROWSPAN="2" STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD COLSPAN="2" ROWSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Cerro Lindo Mine<SUP>(3)</SUP></B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">29.37</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">1.71</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.60</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">20.9</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.23</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">501.5</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">177.3</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">19,702</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">66.1</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">22.73</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">1.08</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.62</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">21.6</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.18</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">246.4</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">141.8</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">15,770</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">40.0</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>52.10</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.44</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.61</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>21.2</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.20</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>747.9</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>319.1</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>35,472</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>106.1</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>El Porvenir Mine<SUP>(4)</SUP></B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">3.76</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">3.76</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.25</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">62.9</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.98</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">141.3</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">9.5</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">7,602</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">36.9</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">10.09</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">3.74</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.22</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">62.8</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.85</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">377.6</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">22.4</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">20,364</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">85.5</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>13.85</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.75</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.23</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>62.8</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.88</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>518.9</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>31.9</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>27,966</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>122.4</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Vazante<SUP>(5)</SUP></B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">100</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">8.44</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">8.40</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">15.2</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.24</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">708.8</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">4,125</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">20.6</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">8.24</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">8.83</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">12.2</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.21</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">727.9</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">3,241</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">17.4</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>16.68</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>8.61</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>13.7</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.23</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1,436.7</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>7,367</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>38.0</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">-</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Aripuan&atilde;<SUP>(6)</SUP></B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">100</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Proven</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">10.08</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">3.74</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.31</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">36.0</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">1.39</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.29</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">376.7</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">31.3</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">11,676</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">140.1</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">94.5</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">Probable</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">13.42</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">3.60</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.21</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">32.9</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">1.33</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">0.33</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">483.1</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">28.4</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">14,211</FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">178.9</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt">141.5</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>23.51</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.66</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.25</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>34.3</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.36</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.31</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>859.8</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>59.7</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>25,887</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>319.0</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>236.1</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Total</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Proven</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>51.65</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.35</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.42</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>26.0</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.51</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.06</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1,728.2</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>218.0</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>43,105</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>263.7</B></FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>94.5</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Probable</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>54.49</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.37</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.35</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>30.6</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.59</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.08</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1,835.2</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>192.6</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>53,586</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>321.8</B></FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>141.5</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Total</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>106.14</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.36</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.39</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>28.3</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.55</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.07</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3,563.4</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>410.7</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>94,691</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>585.5</B></FONT></TD>
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>236.1</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="width: 14%">&nbsp;</TD>
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 6%">&nbsp;</TD>
    <TD STYLE="width: 6%">&nbsp;</TD>
    <TD STYLE="width: 6%">&nbsp;</TD>
    <TD STYLE="width: 6%">&nbsp;</TD>
    <TD STYLE="width: 6%">&nbsp;</TD>
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 7%">&nbsp;</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 1%">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: left">&nbsp;</P>
<!-- Field: Rule-Page --><DIV STYLE="margin-top: 3pt; margin-bottom: 3pt; width: 20%"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><B>Notes:</B></TD><TD></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><I>&nbsp;</I></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><I>* </I>Numbers may not add due to rounding.</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 10pt 0.5in; text-indent: -0.5in">&nbsp;</P>


<!-- Field: Page; Sequence: 12 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font-size: 10pt"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 33%">&nbsp;</TD><TD STYLE="width: 34%">&nbsp;</TD><TD STYLE="width: 33%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->13<!-- Field: /Sequence --> of 27</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">The following table shows our estimates of Attributable
Mineral Reserves for our material mining properties as of December 31, 2020. Prepared in accordance with Subpart 1300 of Regulation S-K.
The Morro Agudo mine, Atacocha underground mine and Atacocha open pit mine do not have known Mineral Reserves under Subpart 1300 of Regulation
S-K.</P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="white-space: nowrap; border-bottom: black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD ROWSPAN="2" STYLE="background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Ownership Interest</B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Total Attributable<SUP>(2)</SUP></B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-right: black 1pt solid; border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>&nbsp;Silver </B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>&nbsp;(g/t) </B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; background-color: white; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD></TR>
  <TR STYLE="background-color: white">
    <TD ROWSPAN="3" STYLE="width: 17%; border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Cerro Lindo<SUP>(3)</SUP></B></FONT></TD>
    <TD ROWSPAN="3" STYLE="width: 7%; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16</FONT></TD>
    <TD STYLE="white-space: nowrap; width: 7%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Proven</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 9%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>23.55</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.71</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.60</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>20.9</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.23</B></FONT></TD>
    <TD STYLE="white-space: nowrap; width: 5%; border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 7%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>402.0</B></FONT></TD>
    <TD STYLE="width: 7%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>142.1</B></FONT></TD>
    <TD STYLE="width: 7%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>15,793</B></FONT></TD>
    <TD STYLE="width: 7%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>53.0</B></FONT></TD>
    <TD STYLE="width: 7%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Probable</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>18.22</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.08</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.62</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>21.6</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.18</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>197.5</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>113.7</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>12,641</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>32.1</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>41.76</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.44</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.61</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>21.2</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.20</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>599.5</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>255.8</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>28,434</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>85.1</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>El Porvenir<SUP>(4)</SUP></B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Proven</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.01</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.76</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.25</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>62.9</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.98</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>113.2</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>7.6</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>6,094</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>29.5</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Probable</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.09</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.74</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.22</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>62.8</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.85</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>302.8</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>17.9</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>16,323</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>68.6</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>11.10</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.75</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.23</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>62.8</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.88</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>416.0</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>25.5</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>22,417</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>98.1</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Vazante(<SUP>5)</SUP></B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">100</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Proven</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.44</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.40</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>15.2</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.24</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>708.8</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>4,125</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>20.6</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Probable</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.24</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.83</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>12.2</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.21</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>727.9</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3,241</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>17.4</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>16.68</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>8.61</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>13.7</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.23</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1,436.7</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>7,367</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>38.0</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: white">
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Aripuan&atilde;<SUP>(6)</SUP></B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt">100</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Proven</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>10.08</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.74</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.31</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>36.0</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.39</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.29</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>376.7</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>31.3</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>11,676</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>140.1</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>94.5</B></FONT></TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Probable</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>13.42</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.60</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.21</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>32.9</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.33</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.33</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>483.1</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>28.4</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>14,211</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>178.9</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>141.5</B></FONT></TD></TR>
  <TR STYLE="background-color: white">
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>23.51</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.66</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.25</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>34.3</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1.36</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.31</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>859.8</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>59.7</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>25,887</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>319.0</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>236.1</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="background-color: #F2F2F2">
    <TD ROWSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Total</B></FONT></TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Proven</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>45.08</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.55</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.40</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>26.0</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.54</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.07</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1,600.7</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>181.0</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>37,688</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>243.3</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>94.5</B></FONT></TD></TR>
  <TR STYLE="background-color: #F2F2F2">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Probable</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>47.98</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.57</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.33</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>30.1</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.62</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.09</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>1,711.4</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>160.0</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>46,417</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>296.9</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>141.5</B></FONT></TD></TR>
  <TR STYLE="background-color: #F2F2F2">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Total</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>93.06</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-left: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3.56</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.37</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>28.1</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.58</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>0.08</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>3,312.0</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>341.0</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>84,105</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>540.2</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>236.1</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><B>Notes:</B></TD><TD></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><I>&nbsp;</I></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 10pt 0.5in; text-indent: -0.5in"><I>* </I>Numbers may not add due to rounding.</P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(1)</FONT></TD><TD><FONT STYLE="font-size: 8pt">The Mineral Reserve estimates with respect to our mines have been prepared by the qualified persons referred
to herein. The production and content amounts presented in this table have not been adjusted to reflect our ownership interest. The information
presented in this table includes 100% of the mineral reserve estimates for the property. Please refer to our ownership percentage for
the amounts attributable to our ownership interest in the property. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(2)</FONT></TD><TD><FONT STYLE="font-size: 8pt">The Mineral Reserve estimates with respect to our mines have been prepared by the qualified persons referred
to herein. The total tonnage and content amounts presented in this table represents Nexa&#8217;s attributable ownership basis.</FONT></TD></TR></TABLE>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->14<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(3)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Reserves, which also are consistent
with the CIM (2014) definitions. The qualified person for Mineral Reserves is SLR Consulting, an independent mining consulting firm. Mineral
Reserves are estimated at NSR cut-off values of US$33.56/t processed for SLS and US$49.90/t processed for C&amp;F. A number of incremental
stopes (down to US$26.16/t NSR value) are included in the estimate. Mineral Reserves are estimated using average long-term metal prices
of Zn: US$2,494.90/t (US$1.13/lb); Pb: US$1,956.00/t (US$0.89/lb); Cu: US$6,457.90/t (US$2.93/lb); and Ag: US$16.85/oz. Metallurgical
recoveries are accounted for in NSR calculations based on historical processing data, and are variable as a function of head grade .&nbsp;
Recoveries at Life of Mine average head grade are 86.3% for Cu, 88.1% for Zn, 68.6% for Pb, and 68.8% for Ag. A minimum mining width of
5.0 m and 4.0 m was used for SLS stopes and C&amp;F stopes, respectively. Bulk density varies depending on mineralization domain. </FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(4)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Reserves, which also are consistent
with the CIM (2014) definitions. The qualified person for Mineral Reserves is SLR Consulting, an independent mining consulting firm. Mineral
Reserves are estimated at NSR cut-off values that are calculated per zone and mining method. For the C&amp;F mining method, the values
vary from US$59.75/t at the lower zone to US$63.37/t at the deepening zone. For SLS, the values vary from US$56.44/t at the lower zone
to US$60.06/t at the deepening zone. Mineral Reserves are estimated using average long-term metal prices of Zn: US$2,494.90/t (US$1.13/lb);
Pb: US$1,956.00/t (US$0.89/lb); Cu: US$6,457.90/t (US$2.93/lb); and Ag: US$16.85/oz, and metallurgical recoveries are based on historical
processing data and are variable as a function of head grade.&nbsp;Recoveries at Life of Mine average head grades are 89.6% for Zn, 79.2%
for Pb, 14.3% for Cu and 77.5% for Ag. Minimum mining width of 5.0 m were applied. Average Bulk density of 3.12 t/m<SUP>3</SUP>.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(5)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Reserves, which also are consistent
with the CIM (2014) definitions. The qualified person for Mineral Reserves is SLR Consulting, an independent mining consulting firm. Mineral
Reserves are estimated at a cut-off NSR value of US$47.49/t processed. Mineral Reserves are estimated using average metal prices of Zn:
US$2,494.90/t; Pb: US$1,956.00/t; and Ag: US$16.85/oz (using an average long term U.S. dollar to Brazilian real exchange rate of 4.84),
and metallurgical recoveries are accounted for in the NSR calculations based on historical processing data and are variable as a function
of head grade. Recoveries at the LOM average head grades are 83.6% for Zn, 22.3% for Pb, and 42.0% for Ag. A minimum mining width of 4.0
m was applied. Average Bulk density of 3.1 t/m<SUP>3</SUP></FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(6)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Reserves, which also are consistent
with the CIM (2014) definitions. The qualified person for Mineral Reserves is SLR Consulting, an independent mining consulting firm. Mineral
Reserves are estimated at a NSR cut-off value of US$45.00/t processed. Some incremental material with values between US$40/t and US$45/t
was included. Mineral Reserves are estimated using average long-term metal prices of Zn: US$2,494.90/t (US$1.13/lb); Pb: US$1,956.00/t
(US$0.89/lb); Cu: US$6,457.90/t (US$2.93/lb); Ag: US$16.85/oz; and Au: US$ 1,538/oz. Metallurgical recoveries are accounted for in the
NSR calculations based on metallurgical test work and are variable as a function of head grade. Recoveries at the LOM average head grades
for stratabound material are 89.4% for Zn, 83.4% for Pb, 67.5% for Cu, 70.0% for Ag, and 70.0% for Au. Recoveries at the LOM average head
grades for stringer material are 88.8% for Cu, 50.0% for Ag, and 50.0% for Au. A minimum mining width of 4.0 m was applied. Mineral Reserves
are reported within engineered stope outlines assuming the following underground mining methods: bench stoping and VRM. Dilution and mining
recovery are considered. The estimation of mineral reserves in this table is as of September 30, 2020.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in; text-indent: -0.25in">&nbsp;</P>

</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->15<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Mineral Resources</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">The following table shows our estimates of Mineral
Resources (<FONT STYLE="background-color: yellow">100% ownership basis</FONT>) for our material mining properties as of December 31, 2020
(unless otherwise indicated below) prepared in accordance with Subpart 1300 of Regulation S-K.</P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="white-space: nowrap; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Ownership Interest (%)</B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Tonnage<SUP>(1)</SUP></B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Gold</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>(koz)</B></FONT></TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="width: 20%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Cerro Lindo Mine<SUP>(3)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="width: 9%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16%</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="width: 6%; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.40</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.00</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.67</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">19.6</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.20</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 7%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">87.8</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">29.4</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2,774</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">8.8</FONT></TD>
    <TD STYLE="width: 4%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.46</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.37</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.45</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">25.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.25</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">47.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">15.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2,776</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">8.8</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>7.86</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.72</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.57</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>22.0</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.22</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>135.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>44.9</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>5,550</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>17.6</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">8.71</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.28</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.33</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">31.2</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.35</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">111.1</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">29.1</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">8,748</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">30.6</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>El Porvenir Mine<SUP>(4)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">80.16%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.23</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.59</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.23</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">63.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.99</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">471</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.33</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.93</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.20</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">63.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.89</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">39.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.6</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2,715</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">11.9</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.56</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.87</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.20</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>63.4</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.91</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>45.0</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3,186</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>14.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">8.47</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.60</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.23</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">78.4</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.95</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">305.0</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">19.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">21,345</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">80.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Vazante Mine<SUP>(5)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">100.00%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.40</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.91</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">8.4</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.18</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">235.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">918</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.2</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.88</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.84</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">5.6</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.14</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">197.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">523</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>6.28</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>6.88</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>7.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.16</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>432.3</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1,441</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>10.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">13.85</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.86</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">9.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.18</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">950.2</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4,216</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">25.6</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Aripuan&atilde; Project<SUP>(6)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt">100.00%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.92</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.50</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.38</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">29.8</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.93</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.29</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">72.9</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">11.1</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2,795</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">27.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">27.4</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">5.17</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.86</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.27</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">18.2</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.63</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.43</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">96.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">13.9</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3,021</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">32.4</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">71.0</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>8.09</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.09</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.31</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>22.4</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.74</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.38</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>169.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>25.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>5,816</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>59.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>98.4</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">39.45</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.31</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.33</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">33.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.22</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.58</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1,306.6</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">131.3</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">42,906</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">482.1</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">736.5</FONT></TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 8pt"><B>Total</B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Measured</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>10.95</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.67</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.38</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>19.8</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.41</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.08</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>401.8</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>41.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>6,959</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>44.6</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>27.4</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Indicated</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>12.84</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.96</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.25</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>21.9</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.46</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.17</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>379.9</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>32.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>9,034</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>57.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>71.0</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>23.79</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.29</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.31</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>20.9</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.43</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.13</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>781.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>73.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>15,993</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>101.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>98.4</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Inferred</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>70.49</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.79</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.26</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>34.5</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.89</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.32</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2,672.9</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>180.2</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>77,215</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>619.1</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>736.5</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: left">&nbsp;</P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 3pt; margin-bottom: 3pt; width: 20%"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>


<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><B>Notes:</B></TD><TD></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><I>&nbsp;</I></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><I>* </I>Numbers may not add due to rounding.</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in"><I>* </I>The estimation of Mineral Resources involves
assumptions about future commodity prices and technical mining matters. Mineral Resources are reported exclusive of those Mineral Resources
that were converted to Mineral Reserves, and Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability.</P>


<!-- Field: Page; Sequence: 15 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font-size: 10pt"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 33%">&nbsp;</TD><TD STYLE="width: 34%">&nbsp;</TD><TD STYLE="width: 33%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->16<!-- Field: /Sequence --> of 27</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">The following table shows our estimates of Attributable
Mineral Resources for our material mining properties as of December 31, 2020 (unless otherwise indicated below) prepared in accordance
with Subpart 1300 of Regulation S-K.</P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="white-space: nowrap; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Ownership Interest<SUP>(1) </SUP>(%)</B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Total Attributable<SUP>(2)</SUP></B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Copper</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Silver</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Lead</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Gold</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Gold</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(koz)</B></FONT></TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="width: 20%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Cerro Lindo Mine<SUP>(3)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="width: 9%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">80.16%</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="width: 6%; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.53</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.00</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.67</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">19.6</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.20</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 7%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">70.4</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">23.6</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2,224</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">7.1</FONT></TD>
    <TD STYLE="width: 4%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.77</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.37</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.45</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">25.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.25</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">37.9</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">12.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2,225</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">7.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>6.30</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.72</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.57</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>22.0</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.22</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>108.3</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>36.0</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>4,448</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>14.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.98</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.28</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.33</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">31.2</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.35</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">89.1</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">23.3</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">7,012</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">24.5</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>El Porvenir Mine<SUP>(4)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">80.16%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.19</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.59</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.23</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">63.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.99</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.8</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.4</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">378</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.8</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.07</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.93</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.20</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">63.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.89</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">31.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.1</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2,176</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">9.6</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.25</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.87</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.20</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>63.4</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.91</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>36.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.5</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2,554</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>11.4</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.79</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.60</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.23</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">78.4</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.95</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">244.4</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">15.9</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">17,110</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">64.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Vazante Mine<SUP>(5)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">100.00%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.40</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.91</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">8.4</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.18</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">235.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">918</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.2</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.88</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.84</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">5.6</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.14</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">197.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">523</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>6.28</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>6.88</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>7.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.16</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>432.3</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1,441</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>10.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">13.85</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6.86</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">9.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.18</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">950.2</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4,216</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">25.6</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Aripuan&atilde; Project<SUP>(6)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">100.00%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.92</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.50</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.38</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">29.8</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.93</FONT></TD>
    <TD STYLE="border-top: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.29</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">72.9</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">11.1</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2,795</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">27.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">27.4</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">5.17</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.86</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.27</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">18.2</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.63</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.43</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">96.3</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">13.9</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3,021</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">32.4</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">71.0</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>8.09</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.09</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.31</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>22.4</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.74</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.38</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>169.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>25.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>5,816</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>59.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>98.4</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">39.45</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.31</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.33</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">33.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.22</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.58</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1,306.6</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">131.3</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">42,906</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">482.1</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">736.5</FONT></TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Total</B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Measured</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>10.03</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.82</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.35</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>19.56</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.42</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.08</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>383.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>35.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>6,315</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>42.4</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>27.4</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Indicated</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>11.89</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.05</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.24</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>20.78</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.45</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.19</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>362.8</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>28.5</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>7,945</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>53.0</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>71.0</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>21.92</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.40</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.29</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>20.24</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.43</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.14</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>745.9</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>63.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>14,260</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>95.6</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>98.4</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Inferred</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>67.07</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.86</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.25</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>33.02</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.89</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.34</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2,590.4</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>170.5</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>71,244</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>596.9</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>736.5</B></FONT></TD></TR>
  </TABLE>&nbsp;
<P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 0; text-align: left"></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 10pt 0.5in; text-indent: -0.5in"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 3pt; margin-bottom: 3pt; width: 20%"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><B>Notes:</B></TD><TD></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><I>&nbsp;</I></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><I>* </I>Numbers may not add due to rounding.</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in"><I>* </I>The estimation of Mineral Resources involves
assumptions about future commodity prices and technical mining matters. Mineral Resources are reported exclusive of those Mineral Resources
that were converted to Mineral Reserves, and Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability.</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->17<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>

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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(1)</FONT></TD><TD><FONT STYLE="font-size: 8pt">The Mineral Resources estimates with respect to our mines have been prepared by the qualified persons
referred to herein. The tonnage and content amounts presented in this table represents 100% of the Mineral Resources estimates for the
property. Please refer to our ownership percentage for the amounts attributable to our ownership interest in the property.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(2)</FONT></TD><TD><FONT STYLE="font-size: 8pt">The Mineral Resources estimates with respect to our mines have been prepared by the qualified persons
referred to herein. The total tonnage and content amounts presented in this table represents Nexa&#8217;s attributable ownership basis</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(3)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources which also are consistent
with the CIM (2014) definitions. . The qualified person for Mineral Resources is SLR Consulting, an independent mining consulting firm.
Mineral Resources are estimated at a NSR cut-off value of US$33.56/t for (SLS and US$49.90/t for C&amp;F. Mineral Resources are estimated
using an average long-term metal prices of Zn: US$2,869.14/t (US$1.30/lb); Pb: US$ 2,249.40/t (US$1.02/lb); Cu: US$7,426.59/t (US$3.37/lb),
and Ag: US$19.38/oz. Metallurgical recoveries are accounted for in the NSR calculations based on historical processing data and are variable
as a function of head grade. Recoveries at LOM average head grades are 86.3% for Cu, 88.1% for Zn, 68.6% for Pb, and 68.8% for Ag. A minimum
mining width of 5.0 m and 4.0 m was used to create SLS and C&amp;F resource shapes respectively. Bulk density varies depending on mineralization
domain.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(4)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. The qualified person for Mineral Resources is SLR Consulting, an independent mining consulting firm.
Mineral Resources are estimated at NSR cut-off values of US$60.06/t for the upper zone, US$61.09/t for the intermediate zone, US$59.75/t
for the lower zone, and US$63.37/t for the mine deepening zone for C&amp;F resource shapes. Mineral Resources are estimated using an average
long-term metal prices of Zn: US$2,869.14/t (US$1.30/lb); Pb: US$2,249.40/t (US$1.02/lb); Cu: US$7,426.59/t (US$3.37/lb); and Ag: US$19.38/oz.
Metallurgical recoveries are accounted for in the NSR calculations based on historical processing data and are variable as a function
of head grade. Recoveries at the LOM average head grades are 89.6% for Zn, 79.2% for Pb, 14.3% for Cu, and 77.5% for Ag. A minimum mining
width of 4.0 m was used for C&amp;F resource stopes. Bulk density varies depending on mineralization domain. </FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(5)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. The qualified person for Mineral Resources is SLR Consulting, an independent mining consulting firm.
Mineral Resources are reported within underground mining shapes with minimum mining width of 3.0 m for willemite mineralization. Density
was assigned based on rock type. Mineral Resources are estimated at various NSR cut-off values appropriate to the mineralization style.
Mineral Resources are estimated using an average long-term metal prices of Zn: US$2,869.14/t (US$1.30/lb); Pb: US$ 2,249.40/t (US$1.02/lb)
and Ag: US$19.38/oz oz (using an average long-term U.S. dollar to Brazilian real exchange rate of 4.84). Metallurgical recoveries are
accounted for in the NSR calculations based on historical processing data and are variable as a function of head grade. Recoveries at
the LOM average hypogene head grades are 83.6% for Zn, 22.3% for Pb, and 42.0% for Ag.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(6)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. The qualified person for Mineral Resources is SLR Consulting, an independent mining consulting firm.
Mineral Resources are reported using a US$45/t cut-off value for transversal longhole mining and longitudinal longhole retreat areas and
US$55/t cut-off value for C&amp;F areas. Mineral Resources are estimated using an average long-term metal prices of Zn: US$2,869/t (US$1.30/lb);
Pb: US$ 2,249/t (US$1.02/lb); Cu: US$7,427/t (US$3.37/lb); Au: US$1,768/oz and Ag: US$19.38/oz. Metallurgical recoveries are accounted
for in the NSR calculations based on metallurgical test work and are variable as a function of head grade. Recoveries at the LOM average
head grades for stratabound material are 89.4% for Zn, 83.4% for Pb, 67.5% for Cu, 70.0% for Ag, and 70.0% for Au. Recoveries at the LOM
average head grades for stringer material are 88.8% for Cu, 50.0% for Ag, and 50.0% for Au. The Mineral Resources in this table have an
effective date as of September 30, 2020.</FONT></TD></TR></TABLE>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->18<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">The following table shows our estimates of Mineral
Resources (<FONT STYLE="background-color: yellow">100% ownership basis</FONT>) for our other operating mines which do not currently have
estimated Mineral Reserves as of December 31, 2020 prepared in accordance with Regulation S-K 1300.</P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="white-space: nowrap; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Ownership (%)</B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Tonnage<SUP>(1)</SUP></B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Copper</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Silver</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Lead</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Gold</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Gold</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(koz)</B></FONT></TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="width: 19%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Atacocha (Underground Mine)<SUP>(3)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="width: 8%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">72.94%</FONT></TD>
    <TD STYLE="width: 9%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="width: 7%; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.47</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.83</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">100.0</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.97</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="width: 6%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">167.2</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">11,141</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">68.4</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.04</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.13</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">73.4</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.39</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">166.8</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">9,527</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">56.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>7.50</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>4.45</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>85.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.66</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>334.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>20,669</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>124.3</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">7.71</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.45</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">81.6</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.26</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">342.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">20,236</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">97.2</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Atacocha (Open pit Mine)<SUP>(4)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">72.94%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.34</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.17</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">30.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.87</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.22</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">50.6</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4,191</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">37.7</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">31.2</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">5.53</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.03</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">30.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.89</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.21</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">57.2</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">5,336</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">49.4</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">36.7</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>9.87</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.09</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>30.0</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.88</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.21</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>107.9</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>9,527</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>87.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>67.9</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.31</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.97</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">30.5</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.83</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.26</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">12.8</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1,291</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">10.9</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">10.9</FONT></TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Morro Agudo Mine<SUP>(5)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">100.00%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">17.28</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.25</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.64</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">561.7</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">111.1</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>17.28</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.25</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.64</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>561.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>111.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.70</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.27</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.52</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">154.0</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">24.3</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Total</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Measured</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>7.81</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.79</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>61.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.36</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.12</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>217.9</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>15,333</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>106.1</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>31.2</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Indicated</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>26.84</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.93</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>17.2</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.81</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.04</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>785.8</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>14,864</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>216.5</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>36.7</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>34.65</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.90</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>27.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.93</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.06</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1,003.7</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>30,196</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>322.6</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>67.9</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Inferred</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>13.73</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.71</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>48.8</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.96</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.02</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>509.6</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>21,527</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>132.4</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>10.9</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 3pt; margin-bottom: 3pt; width: 20%"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><B>Notes:</B></TD><TD></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><I>&nbsp;</I></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in"><I>* </I>Numbers may not add due to rounding.</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-indent: -0.5in">&nbsp;</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in"><I>* </I>The estimation of Mineral Resources involves
assumptions about future commodity prices and technical mining matters. Mineral Resources are not mineral reserves and do not have demonstrated
economic viability.</P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>


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    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font-size: 10pt"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 33%">&nbsp;</TD><TD STYLE="width: 34%">&nbsp;</TD><TD STYLE="width: 33%">&nbsp;</TD></TR></TABLE></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->19<!-- Field: /Sequence --> of 27</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">The following table shows our estimates of Attributable
Mineral Resources for our other operating mines which do not currently have estimated Mineral Reserves as of December 31, 2020 prepared
in accordance with Regulation S-K 1300.</P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="3" STYLE="white-space: nowrap; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Ownership (%)</B></FONT></TD>
    <TD ROWSPAN="3" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Class</B></FONT></TD>
    <TD ROWSPAN="2" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Total Attributable<SUP>(2)</SUP></B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Grade</B></FONT></TD>
    <TD COLSPAN="5" STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Contained Metal</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Copper</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Silver</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Lead</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Gold</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Zinc</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Copper</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Silver</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Lead</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Gold</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(Mt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(%)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(g/t)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(koz)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(kt)</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>(koz)</B></FONT></TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="width: 18%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Atacocha (Underground Mine)<SUP>(3)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="width: 8%; border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">72.94%</FONT></TD>
    <TD STYLE="width: 8%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="width: 10%; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.53</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.83</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">100.0</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.97</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="width: 6%; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">122.0</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="width: 7%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">8,127</FONT></TD>
    <TD STYLE="width: 6%; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">49.9</FONT></TD>
    <TD STYLE="width: 5%; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">2.94</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.13</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">73.4</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.39</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">121.7</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">6,949</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">40.8</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>5.47</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>4.45</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>85.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.66</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>243.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>15,076</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>90.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">5.63</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.45</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">81.6</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.26</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">250.1</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">14,760</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">70.9</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Atacocha (Open pit Mine)<SUP>(4)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">72.94%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.17</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.17</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">30.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.87</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.22</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">36.9</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3,057</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">27.5</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">22.8</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.04</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">1.03</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">30.0</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.89</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.21</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">41.8</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3,892</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">36.1</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">26.7</FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>7.20</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.09</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>30.0</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.88</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.21</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>78.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>6,949</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>63.6</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>49.5</B></FONT></TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.96</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.97</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">30.5</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.83</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.26</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">9.3</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">941</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">7.9</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">7.9</FONT></TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Morro Agudo Mine<SUP>(5)</SUP></B></FONT></TD>
    <TD ROWSPAN="4" STYLE="border-bottom: black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">100.00%</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Measured</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Indicated</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">17.28</FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.25</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.64</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">561.7</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">111.1</FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>17.28</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.25</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.64</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>561.7</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>111.1</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">Inferred</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">4.70</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">3.27</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">0.52</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">154.0</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">24.3</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD></TR>
  <TR>
    <TD ROWSPAN="4" STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Total</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Measured</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>5.70</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.79</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>61.07</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>1.36</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.12</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>158.92</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">11,184</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>77.40</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>22.76</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Indicated</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>24.26</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.99</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>13.90</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.77</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.03</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>725.15</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">10,842</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>187.98</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>26.73</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Subtotal</B></FONT></TD>
    <TD STYLE="white-space: nowrap; border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>29.95</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>2.95</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>22.87</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.88</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.05</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>884.07</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>22,025</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>265.38</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>49.49</B></FONT></TD></TR>
  <TR>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>Inferred</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>11.28</B></FONT></TD>
    <TD STYLE="border-left: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>3.66</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>43.27</B></FONT></TD>
    <TD STYLE="padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.92</B></FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>0.02</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>413.39</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center">&nbsp;</TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt">15,702</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>103.13</B></FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 3.5pt; padding-left: 3.5pt; text-align: center"><FONT STYLE="font-size: 9pt"><B>7.92</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in"><B>Notes:</B></TD><TD></TD></TR></TABLE>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(1)</FONT></TD><TD><FONT STYLE="font-size: 8pt">The Mineral Resources estimate with respect to our mines were prepared by Nexa Resources. The tonnage
and content amounts presented in this table represents 100% of the Mineral Resources estimates for the property. Please refer to our ownership
percentage for the amounts attributable to our ownership interest in the property.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(2)</FONT></TD><TD><FONT STYLE="font-size: 8pt">The Mineral Resources estimate with respect to our mines were prepared by Nexa Resources. The total tonnage
and content amounts presented in this table represents Nexa&#8217;s attributable ownership basis</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(3)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. The qualified person for the Mineral Resources estimate is Jos&eacute; Antonio Lopes, B.Geo., MAusIMM
(CP) Geo, a Nexa Resources employee. Mineral Resources are estimated at a net smelter return (NSR) cut-off value of US$ 55.05/t for C&amp;F
mining method. Mineral Resources are estimated using an average long-term metal prices of Zn: US$2,869.14/t (US$1.30/lb); Pb: US$2,249.40/t
(US$1.02/lb); and Ag: US$19.38/oz, and </FONT></TD></TR></TABLE>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->20<!-- Field: /Sequence --> of 27</P></DIV>
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<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">&nbsp;</FONT></TD><TD><FONT STYLE="font-size: 8pt">metallurgical recoveries are based on recovery curves derived
from historical processing data, and are variable as a function of head grade.&nbsp; Recoveries at Life of
Mine average head grades are 79.5% for Zn, 89.0% for Pb, 5.5% for Cu and 76.5% for Ag. A minimum mining width of 4.0 m was used for C&amp;F
resource stopes.</FONT></TD></TR></TABLE>


<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0 0 0 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(4)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. The qualified person for the Mineral Resources estimate is Jos&eacute; Antonio Lopes, B.Geo., MAusIMM
(CP) Geo, a Nexa Resources employee. Mineral Resources are reported within optimized pit shell. Density was assigned based on rock type.
Mineral Resources are estimated at a NSR cut-off value of US$19.46/t processed. Mineral Resources are estimated using an average long-term
metal prices of Zn: US$2,869.14/t (US$1.30/lb); Pb: US$2,249.40/t (US$1.02/lb); Au: US$1,768/oz; and Ag: US$19.38/oz, and metallurgical
recoveries are based on recovery curves derived from historical processing data , and are variable as a function of head grade. Recoveries
ate the Life of Mine average head grades are 74.3% for Zn, 85.0% for Pb, 5.5% for Cu, 64.4% for Au and 76.5% for Ag.</FONT></TD></TR></TABLE>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-size: 8pt">(5)</FONT></TD><TD><FONT STYLE="font-size: 8pt">Subpart 1300 of Regulation S-K definitions were followed for Mineral Resources, which also are consistent
with the CIM (2014) definitions. The Qualified Person for the Mineral Resources estimate is Jos&eacute; Antonio Lopes, B.Geo., MAusIMM
(CP) Geo, a Nexa Resources employee. Mineral Resources are reported within underground mining shapes. A minimum thickness of 3 m was applied
for Bonsucesso and 4.5 m for Morro Agudo underground. Density was assigned based on rock type. The NSR cut-off values are calculated based
on the life of mine costs for each mine. Morro Agudo: US$ 37.95/t and Bonsucesso: US$ 46.22/t. Mineral Resources are estimated using an
average long-term metal prices of Zn: US$2,869.14/t (US$1.30/lb) and Pb: US$2,249.40/t (US$1.02/lb); and metallurgical recoveries are
based on historical processing data and metallurgical testworks , and are variable as a function of head grade.&nbsp; Recoveries ate the
Life of Mine average head grades for Morro Agudo Mine are 890.% for Zn, and 78.0% for Pb, and for Bonsucesso are 92.0% for Zn and 72%
for Pb.</FONT></TD></TR></TABLE>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->21<!-- Field: /Sequence --> of 27</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 24pt 0 0; text-align: right"><B>ANNEX C</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Cerro Lindo</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="color: #243F60; font: 10pt Calibri, Helvetica, Sans-Serif; margin: 2pt 0 0">16.1.3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Lead
and Silver</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Lead and silver in conjunction represent 9% of
Cerro Lindo&#8217;s gross revenue. Given their low impact on the Cerro Lindo revenue mix, Nexa has based its lead and silver price forecast
solely on consensus prices and correlation analysis published by metal market analysts and financial institutions.</P>

<P STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin: 2pt 0 0"><FONT STYLE="font-style: normal">16.3.1.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>Lead
Price Outlook</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Lead represents 4% of Cerro Lindo&#8217;s gross
revenue. Nexa&#8217;s lead prices were chosen considering a spread applied on the zinc prices curve. These spreads are commonly used and
monitored by the market, based on a strong correlation between the two metals. For the cycle 2021 to 2025 a growing spread between US$
350/t Pb to US$ 700/t Pb was considered. Nexa forecasts increasing lead prices between 2021 and 2025 (between US$ 1,869/t Pb and US$ 2,247/t
Pb), and a lower long term price of US$ 1,910/t Pb. Figure 16&#45;4 presents the results of Nexa&#8217;s lead analysis.</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center"><IMG SRC="nexa-img01.jpg" ALT="Gr&aacute;fico&#10;&#10;Descri&ccedil;&atilde;o gerada automaticamente com confian&ccedil;a baixa" STYLE="height: 182px; width: 333px"></P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 12pt; text-align: center"><A NAME="a_Toc85462557"></A><A NAME="a_Ref84530079"></A>Figure
16&#45;4:&#9;Lead Price Outlook (2020-2025)</P>

<P STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin: 2pt 0 0"><FONT STYLE="font-style: normal">16.1.3.2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>Silver
Price Outlook</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Silver represents 5% of Cerro Lindo&#8217;s gross
revenue. Nexa&#8217;s silver prices were chosen based on the median of consensus quotes/prices published by banks and institutions on
a monthly basis. The silver forecast curve in Figure 16&#45;5 presents the median silver price considering 23 different institutional
sources. Nexa forecasts declining silver prices between 2021 and 2025 (between US$ 17.30/oz Ag and US$ 16.40/oz Ag), with a potential
long term price increase to US$ 16.87/oz Ag.</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center"><IMG SRC="nexa-img05.gif" ALT="Gr&aacute;fico&#10;&#10;Descri&ccedil;&atilde;o gerada automaticamente com confian&ccedil;a m&eacute;dia" STYLE="height: 173px; width: 297px"></P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 12pt; text-align: center"><A NAME="a_Toc85462558"></A><A NAME="a_Ref84530098"></A>Figure
16&#45;5:&#9;Silver Price Outlook (2020-2025)</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>El Porvenir</U></B></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->22<!-- Field: /Sequence --> of 27</P></DIV>
    <!-- Field: /Page -->

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #243F60; font: 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">16.1.3</TD><TD>Lead and Silver</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Lead and silver in conjunction represent 28%
of El Porvenir&#8217;s gross revenue. Given their impact in the El&nbsp;Porvenir revenue mix, Nexa has based its lead and silver price
forecast solely on consensus prices and correlation analysis published by metal market analysts and financial institutions.</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.7in"><FONT STYLE="font-style: normal">16.1.3.1</FONT></TD><TD>Lead Price Outlook</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Lead represents 11% of El Porvenir&#8217;s gross
revenue. Nexa&#8217;s lead prices were chosen considering a spread applied on the zinc prices curve. These spreads are commonly used and
monitored by the market, based on a strong correlation between the two metals. For the cycle 2021 to 2025 a growing spread between US$
350/t Pb to US$ 700/t Pb was considered. Nexa forecasts increasing lead prices between 2021 and 2025 (between US$ 1,869/t Pb and US$ 2,247/t
Pb), and a lower long term price of US$ 1,910/t Pb. Figure 16&#45;4 presents the results of Nexa&#8217;s lead analysis.</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center"><IMG SRC="nexa-img02.jpg" ALT="Gr&aacute;fico&#10;&#10;Descri&ccedil;&atilde;o gerada automaticamente com confian&ccedil;a baixa" STYLE="height: 159px; width: 291px"></P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 12pt; text-align: center"><A NAME="a_Toc85468312"></A>Figure
16&#45;4:&#9;Lead Price Outlook (2020-2025)</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.7in"><FONT STYLE="font-style: normal">16.1.3.2</FONT></TD><TD>Silver Price Outlook</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Silver represents 17% of El Porvenir&#8217;s
gross revenue. Nexa&#8217;s silver prices were chosen based on the median of consensus quotes/prices published by banks and institutions
on a monthly basis. The silver forecast curve in Figure 16&#45;5 presents the median silver price considering 23 different institutional
sources. Nexa forecasts declining silver prices between 2021 and 2025 (between US$ 17.30/oz Ag and US$ 16.40/oz Ag), with a potential
long term price increase to US$ 16.87/oz Ag.</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center"><IMG SRC="nexa-img06.gif" ALT="Gr&aacute;fico&#10;&#10;Descri&ccedil;&atilde;o gerada automaticamente com confian&ccedil;a m&eacute;dia" STYLE="height: 199px; width: 342px"></P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 12pt; text-align: center"><A NAME="a_Toc85468313"></A>Figure
16&#45;5:&#9;Silver Price Outlook (2020-2025)</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>




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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->23<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Vazante</U></B></P>


<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #243F60; font: 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">16.1.1</TD><TD>Zinc</TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.7in"><FONT STYLE="font-style: normal">16.1.1.1</FONT></TD><TD>Demand</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">The major market drivers for zinc demand are
construction and infrastructure, transportation and vehicles production, industrial machinery production, batteries, and renewable energy.
All these industries have been affected by the COVID-19 pandemic which has caused the global economy to slow down. As a result, zinc metal
demand has also decreased in 2020, by approximately 10% year over year.</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Nexa&#8217;s Market Intelligence team examined
several scenarios for demand recovery and future growth and settled on a base case that forecasts pre-COVID-19 levels of demand in the
second half of 2022, with a demand compound annual growth rate (CAGR) of approximately 1.3% from 2023 to 2025. In 2019, they had forecasted
a CAGR of approximately 1.7% between 2019 and 2024.</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.7in"><FONT STYLE="font-style: normal">16.1.1.2</FONT></TD><TD>Supply</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Nexa&#8217;s Market Intelligence team&#8217;s
supply forecast analysis was based on the following industry information: zinc mine start-up and closure, mine production guidance, disruption
allowance evaluation, project pipeline, and cost evaluation for 2020 onwards. Nexa&#8217;s forecast analysis results are summarized as
follows:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 3pt; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; font-size: 10pt; color: #404040">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Mine disruption factor: Based on independent data, Nexa has forecast a mine
disruption factor of 4% for China and 4% until 2023 and 2% to 3% for 2024 and 2025 for the rest of the world (ROW). </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 3pt; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; font-size: 10pt; color: #404040">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Project Pipeline: The analysis considered greenfield projects forecast to
begin production between 2020 and 2025.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 3pt; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; font-size: 10pt; color: #404040">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Zinc concentrate production evolution - Global: Recent market conditions
due to the COVID-19 pandemic have affected mines worldwide, reducing investments and causing mine closures. As a result, zinc supply might
be limited in the long term. </FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 3pt; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; font-size: 10pt; color: #404040">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">China concentrate evolution: China zinc concentrate supply is expected to
increase by 3% through the 2020 to 2025 cycle, but significantly depends on the ability of China&#8217;s small mines to survive amid lower
price levels and volatile market conditions.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 3pt; margin-bottom: 3pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; font-size: 10pt; color: #404040">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Zinc Global Market Balance: Based on the above considerations, Nexa&#8217;s
forecast is for a significant zinc supply surplus in 2020 and 2021, with an increase in demand starting in the second half of 2022. From
2024 onwards, the global demand will exceed zinc supply.</FONT></TD></TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.7in"><FONT STYLE="font-style: normal">16.1.1.3</FONT></TD><TD>Zinc Price Outlook</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Zinc prices depend on variations in supply, demand,
and the perceived supply/demand balance. The most commonly referenced currency for zinc transactions is US dollars. Nexa&#8217;s Market
Intelligence team, based on its analysis of zinc supply, demand, global balance, and zinc prices, forecasts stressed zinc prices in 2021
and 2022 (between US$ 2,000/t Zn and US$ 2,300/t Zn), with a potential price increase to greater than US$ 2,700/t Zn starting in 2024
to 2025, and a long term price of US$ 2,449/t Zn. Figure 16&#45;1 presents the results of Nexa&#8217;s analysis.</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->24<!-- Field: /Sequence --> of 27</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 0; text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 0; text-align: center"><FONT STYLE="font-size: 10pt"><IMG SRC="nexa-img03.jpg" ALT="Chart, line chart&#10;&#10;Description automatically generated" STYLE="height: 186px; width: 386px"></FONT></P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0 0 3pt; text-align: center">Source: Nexa, 2020e</P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 12pt; text-align: center"><A NAME="a_Toc54625745"></A><A NAME="a_Toc56421770"></A><A NAME="a_Toc61622372"></A><A NAME="a_Toc64048573"></A><A NAME="a_Toc85470883"></A><A NAME="a_Ref84609238"></A>Figure
16&#45;1:&#9;Zinc Price Outlook (2020-2025)</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #243F60; font: 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">16.1.2</TD><TD>Lead and Silver</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Lead and silver in conjunction represent 3% of
Vazante&#8217;s gross revenue. Given their low impact on Vazante&#8217;s revenue mix, Nexa has based its lead and silver price forecast
solely on consensus prices and correlation analysis published by metal market analysts and financial institutions.</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.7in"><FONT STYLE="font-style: normal">16.2.1.1</FONT></TD><TD>Lead Price Outlook</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Lead represents 1% of Vazante&#8217;s gross revenue.
Nexa&#8217;s lead prices were chosen considering a spread applied on the zinc prices curve. These spreads are commonly used and monitored
by the market, based on a strong correlation between the two metals. For the cycle 2021 to 2025 a growing spread between US$ 350/t Pb
to US$ 700/t Pb was considered. Nexa forecasts increasing lead prices between 2021 and 2025 (between US$ 1,869/t Pb and US$ 2,247/t Pb),
and a lower long-term price of US$ 1,910/t Pb. Figure 16&#45;4 presents the results of Nexa&#8217;s lead analysis.</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center"><IMG SRC="nexa-img04.jpg" ALT="Gr&aacute;fico&#10;&#10;Descri&ccedil;&atilde;o gerada automaticamente com confian&ccedil;a baixa" STYLE="height: 219px; width: 402px"></P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 15pt; text-align: center"><A NAME="a_Toc85470884"></A>Figure
16&#45;4:&#9;Lead Price Outlook (2020-2025)</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.7in"><FONT STYLE="font-style: normal">16.1.2.2</FONT></TD><TD>Silver Price Outlook</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Silver represents 2% of Vazante&#8217;s gross
revenue. Nexa&#8217;s silver prices were chosen based on the median of consensus quotes/prices published by banks and institutions on
a monthly basis. The silver forecast curve in Figure 16&#45;5 presents the median silver price considering 23 different institutional
sources. Nexa forecasts declining silver prices between 2021 and 2025 (between US$ 17.30/oz Ag and US$ 16.40/oz Ag), with a potential
long-term price increase to US$ 16.87/oz Ag.</P>


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<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center"><IMG SRC="nexa-img07.gif" ALT="Gr&aacute;fico&#10;&#10;Descri&ccedil;&atilde;o gerada automaticamente com confian&ccedil;a m&eacute;dia" STYLE="height: 213px; width: 366px"></P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 12pt; text-align: center"><A NAME="a_Toc85470885"></A>Figure
16&#45;5:&#9;Silver Price Outlook (2020-2025)</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Aripuan&atilde;</U></B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #243F60; font: 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">16.1.3</TD><TD>Lead, Silver, and Gold</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Lead , silver, and gold in conjunction represent
31% of Aripuan&atilde;&#8217;s gross revenue. Given their impact on the Aripuan&atilde; revenue mix, Nexa has based its lead and silver
price forecast solely on consensus prices and correlation analysis published by metal market analysts and financial institutions.</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.7in"><FONT STYLE="font-style: normal">16.1.3.1</FONT></TD><TD>Lead Price Outlook</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Lead represents 19% of Aripuan&atilde;&#8217;s
gross revenue. Nexa&#8217;s lead prices were chosen considering a spread applied on the zinc prices curve. These spreads are commonly
used and monitored by the market, based on a strong correlation between the two metals. For the cycle 2021 to 2025 a growing spread between
US$ 350/t Pb to US$ 700/t Pb was considered. Nexa forecasts increasing lead prices between 2021 and 2025 (between US$ 1,869/t Pb and US$
2,247/t Pb), and a lower long term price of US$ 1,910/t Pb. Figure 16&#45;4 presents the results of Nexa&#8217;s lead analysis.</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center"><IMG SRC="nexa-img05.jpg" ALT="Gr&aacute;fico&#10;&#10;Descri&ccedil;&atilde;o gerada automaticamente com confian&ccedil;a baixa" STYLE="height: 203px; width: 372px"></P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 12pt; text-align: center"><A NAME="a_Toc85468553"></A><A NAME="a_Ref84531905"></A>Figure
16&#45;4:&#9;Lead Price Outlook (2020-2025)</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="color: #365F91; font: italic 10pt Calibri, Helvetica, Sans-Serif; margin-top: 12pt; margin-bottom: 6pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.7in"><FONT STYLE="font-style: normal">16.1.3.2</FONT></TD><TD>Silver and Gold Price Outlook</TD></TR></TABLE>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Silver and gold represent 9% and 6% of Aripuan&atilde;&#8217;s
gross revenue, respectively. Nexa&#8217;s silver and gold prices were chosen based on the median of consensus prices published by banks
and institutions on a monthly basis.</P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->26<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 11pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify"></P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0; text-align: justify">Nexa forecasts a declining silver price
between 2021 and 2025 (between US$ 17.30/oz Ag and US$&nbsp;16.40/oz Ag), with a potential long term price increase to US$ 16.87/oz
Ag after year 2025. For gold, Nexa forecasts declining prices between 2021 and 2025 (between US$ 1,901/oz Au and US$ 1,466/oz Au),
with a potential long term price increase to US$ 1,500/oz Au after year 2025. The silver and gold forecast curves in <FONT STYLE="font-size: 10pt">Figure
16&#45;5 and Figure 16&#45;6, respectively, present the median silver and gold prices considering 23 different institutional
sources. </FONT></P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center"><IMG SRC="nexa-img08.gif" ALT="Gr&aacute;fico&#10;&#10;Descri&ccedil;&atilde;o gerada automaticamente com confian&ccedil;a m&eacute;dia" STYLE="height: 197px; width: 339px"></P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 12pt; text-align: center"><A NAME="a_Toc85468554"></A><A NAME="a_Ref84532059"></A>Figure
16&#45;5:&#9;Silver Price Outlook (2020-2025)</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 3pt 0; text-align: center"><IMG SRC="nexa-img09.gif" ALT="" STYLE="height: 212px; width: 350px"></P>

<P STYLE="color: #059AC4; font: bold 10pt Calibri, Helvetica, Sans-Serif; margin: 6pt 0 12pt; text-align: center"><A NAME="a_Toc85468555"></A><A NAME="a_Ref84532066"></A>Figure
16&#45;6:&#9;Gold Price Outlook (2020-2025)</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. George K. Schuler</P><P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Mr. Gus Rodriguez, Page <!-- Field: Sequence; Type: Arabic; Name: PageNo -->27<!-- Field: /Sequence --> of 27</P></DIV>
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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: right"><B>ANNEX D</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Cerro Lindo</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0">18.0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Capital and Operating Costs</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: justify">SLR reviewed capital and operating costs required
for mining and processing of Mineral Reserves at Cerro Lindo. Costs were supplied to SLR by Nexa. Cerro Lindo is an operating mine, therefore,
capital and operating cost estimates were prepared based on recent operating performance and the current operating budget for 2020. <FONT STYLE="color: #2E97D3"><U>The
cost estimates are accurate to within +/-10%.</U></FONT> SLR considers these cost estimates to be reasonable, provided the production
targets are realized. All costs in this section are expressed in Q4 2020 US dollars.</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: justify">In both cases, capital and operating cost estimates
are based on recent estimates and actual costs and considered by SLR to be reasonable.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>El Porvenir</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0">18.0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Capital and Operating Costs</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: justify">For the purpose of this Technical Report Summary,
SLR reviewed the capital and operating costs required for the mining and processing of Mineral Reserves at El Porvenir provided by Nexa.
The capital and operating cost estimates were prepared based on recent operating performance and the current operating budget for 2020.
<FONT STYLE="color: #2E97D3"><U>The cost estimates are accurate to within +/-10%.</U></FONT> SLR considers these cost estimates to be
reasonable, as long as the production targets are realized. All costs in this section are expressed in Q4 2020 US dollars.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Vazante</U></B></P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0">18.0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Capital and Operating Costs</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: justify">SLR reviewed capital and operating costs required
for mining and processing of Mineral Reserves at the Vazante Operation. Costs were supplied to SLR by Nexa. Vazante Operation consists
of an operating mine, therefore, the capital and operating cost estimates were prepared based on recent operating performance and the
current operating budget for 2020. <FONT STYLE="color: #2E97D3"><U>The cost estimates are accurate to within +/-&nbsp;10%.</U></FONT>
SLR considers these cost estimates to be reasonable. All costs in this section are expressed in US dollars.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B><U>Aripuan&atilde;</U></B></P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: justify">18.2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Operating
Costs</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0; text-align: justify">Operating costs, averaging US$73 million per year
at full production, were estimated for mining, processing, and G&amp;A. Operating cost inputs such as labour rates, consumables, and
supplies were based on Nexa operating data. <FONT STYLE="color: #2E97D3"><U>The operating cost estimate is accurate to within +/- 10%.</U></FONT> A summary of operating costs is shown in Table 18&#45;3.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-indent: 192.45pt">&nbsp;</P>

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<DOCUMENT>
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<DOCUMENT>
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<SEQUENCE>6
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
