<SEC-DOCUMENT>0001193805-21-000571.txt : 20210429
<SEC-HEADER>0001193805-21-000571.hdr.sgml : 20210429
<ACCEPTANCE-DATETIME>20210429171137
ACCESSION NUMBER:		0001193805-21-000571
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210429
FILED AS OF DATE:		20210429
DATE AS OF CHANGE:		20210429

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Wisekey International Holding S.A.
		CENTRAL INDEX KEY:			0001738699
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			V8
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39115
		FILM NUMBER:		21871984

	BUSINESS ADDRESS:	
		STREET 1:		ROUTE DE PRE-BOIS 29, P.O. BOX 853
		CITY:			GENEVA 15
		STATE:			V8
		ZIP:			CH-1215
		BUSINESS PHONE:		011-41-22-594-3034

	MAIL ADDRESS:	
		STREET 1:		ROUTE DE PRE-BOIS 29, P.O. BOX 853
		CITY:			GENEVA 15
		STATE:			V8
		ZIP:			CH-1215
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
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<FILENAME>e620531_6k-wisekey.htm
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<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>WASHINGTON, DC 20549</B></P>

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<P STYLE="font: 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 6-K</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Report of Foreign Private Issuer</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Pursuant to Rule 13a-16 or 15d-16 under the</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Securities Exchange Act of 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Date of report: April 29, 2021</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Commission File Number: 001-39115</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>WISEKEY INTERNATIONAL HOLDING AG</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Exact Name of Registrant as Specified in Charter)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>WISEKEY INTERNATIONAL HOLDING LTD</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Translation of Registrant&rsquo;s name into
English)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font-size: 10pt; border-collapse: collapse">
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    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 30%">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Canton of Zug, Switzerland</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P></TD>
    <TD STYLE="width: 30%">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>General-Guisan-Strasse 6</B></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CH-6300 Zug, Switzerland</B></P></TD>
    <TD STYLE="width: 30%; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Not Applicable</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(State or other jurisdiction of incorporation or organization)</FONT></TD>
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(Address of principal executive office)</FONT></TD>
    <TD STYLE="font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">(I.R.S. Employer Identification No.)</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; text-align: center">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: center">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: center">&nbsp;</TD></TR>
  </TABLE>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Indicate by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"> &#9746; Form 20-F&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#9;&#9744; Form 40-F</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; background-color: white">Indicate
by check mark if the registrant is submitting the Form&nbsp;6-K in paper as permitted by Regulation&nbsp;S-T Rule&nbsp;101(b)(1): </FONT>&#9744;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; background-color: white">Indicate
by check mark if the registrant is submitting the Form&nbsp;6-K in paper as permitted by Regulation&nbsp;S-T Rule&nbsp;101(b)(7): </FONT>&#9744;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">Exhibit<BR>
<U>No.</U></FONT></TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt"><U>Description</U></FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">1.1</FONT></TD>
    <TD STYLE="vertical-align: bottom">&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt"><A HREF="e620531_ex1-1.htm">Press release of WISeKey International Holding AG, issued on April 29, 2021.</A></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Pursuant to the requirements
of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto
duly authorized.</P>

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

<P STYLE="margin: 0pt"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif">Date: April 29, 2021</P>


</TD>
    <TD COLSPAN="3"><FONT STYLE="text-transform: uppercase"><B>wisekey international holding ag</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%">&nbsp;</TD>
    <TD STYLE="width: 3%">&nbsp;</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 30%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>By:&nbsp;&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid">/s/ Carlos Moreira</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Name:&nbsp;</TD>
    <TD>Carlos Moreira</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Title:</TD>
    <TD>Chief Executive Officer</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>By:</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid">/s/ Peter Ward</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Name:</TD>
    <TD>Peter Ward</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Title:</TD>
    <TD>Chief Financial Officer</TD></TR>
</TABLE>

<P STYLE="margin: 0pt">&nbsp;</P>

<P STYLE="border-bottom: Black 2px solid; text-align: center; margin-top: 0pt; margin-bottom: 0pt">3</P>

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<P STYLE="margin: 0pt">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white; color: #333333">WISeKey
Reports FY 2020 Audited Consolidated Financial Results</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white; color: #333333">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white; color: #333333">Schedules
conference call for Friday, April 30 at 3:00 pm CET (9:00 am ET)</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white; color: #333333">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">ZUG, Switzerland, April
29, 2021&nbsp;&ndash; WISeKey&nbsp;International Holding Ltd. (&ldquo;WISeKey&rdquo; NASDAQ: WKEY; SIX Swiss Exchange: WIHN), a leading
cybersecurity and IoT company, announced today its audited consolidated financial results for full year (FY) 2020 (period ended December
31, 2020).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">Carlos Moreira, WISeKey&rsquo;s
Founder and CEO, noted, &ldquo;2020 was a transformational year for WISeKey as we made significant investment in R&amp;D to enhance our
Artificial Intelligence capabilities, the real driving force behind IoT technology, expanded our product portfolio, and maintained leading-edge
technology position and competitive advantage of our offerings. We also built up our sales force in the U.S., Europe and Asia, to take
advantage of higher demand for strong security, authentication, brand protection and anti-counterfeiting services for segments such as
connected devices, connected cars, luxury products, pharmaceuticals and banking/financial sector. We ended the year with a strong cash
position which supports our growth initiatives, both organically and through acquisitions, and at the same time gives us the flexibility
to invest in strategic partnerships and joint ventures with global organizations.&rdquo;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">Mr. Moreira added, &ldquo;We
started 2021 on a very strong note. The acquisition of controlling interest in arago has provided us with a new, higher-margin revenue
source for AI-based Knowledge Automation. We believe that due to our solid revenue pipeline for existing product offerings and new opportunities
in the emerging Cybersecure Automation for the AIoT market, WISeKey is well positioned to improve margins and increase revenues, thus
providing higher returns to its shareholders.&rdquo;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"><FONT STYLE="font-weight: normal; background-color: white">WISeKey&rsquo;s
FY20 audited consolidated financial results are available at https://www.wisekey.com/company/investors/financial-reports/.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"><FONT STYLE="text-transform: uppercase; background-color: white">2020
Key Financial and Operational Highlights: </FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; background-color: white; color: #212529"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify"><B>Acquired 51% controlling interest in arago GmbH (arago) on February 1, 2021 and reached a binding agreement
to acquire the remaining 49%: </B>arago&rsquo;s leading technology that provides AI to enterprises globally through Knowledge Automation,
its large recurring customer base and licensing model, brought significant synergies to WISeKey and strengthened our position in the fast-growing
AIoT market.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; background-color: white"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; color: #212529">&middot;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="color: #212529"><B>Revenue of $14.8 million:</B> although lower than FY 2019 revenue (due
to the impact of COVID&nbsp;19 pandemic, which disrupted supply chains worldwide, and the political and trading tensions between the U.S.
and China), the new AIoT revenue stream and the rising demand for semiconductors since end of 2020, should fuel future revenue growth
for WISeKey</FONT><FONT STYLE="color: #333333; background-color: white">. </FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; background-color: white; color: #212529"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify"><B>Substantial reduction in general &amp; administrative expenses (SG&amp;A):</B> the decrease of 32%
to $10.7 million in FY 2020, from $15.8 million in FY 2019 was due to steps we took to manage our overhead costs and quickly adjust to
the new environment. While for 2021 we expect total SG&amp;A expenses to increase (as some of these costs, mainly traveling related costs
will return to pre-COVID levels, and additional expenses related to the arago acquisition), we expect SG&amp;A expenses as percentage
of revenue to decline in the coming years due to general cost reduction initiatives we have and will continue to implement.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; background-color: white; color: #212529"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify"><B>Strong cash position:</B> cash and cash equivalents together with restricted cash increased to $21.8
million at December 31, 2020, from $16.6 million at December 31, 2019.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 6pt"><P STYLE="margin-top: 0pt; margin-bottom: 0pt; text-align: center; font-size: 8pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white; color: #333333"><FONT STYLE="text-transform: uppercase"><B>2021
key Growth Areas</B></FONT>&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; background-color: white; color: #333333"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify"><B>Trusted Non-Fungible Token (NFT) Platform:</B> WISeKey plans to deploy its unique Digital Identification
NFT platform technology in June 2021. This NFT platform will provide the most secure and scalable blockchain backend for creating real
digital twins for valuable objects. This unique approach will make it possible to mint provenance and a digital version into an NFT that
contains smart contracts on how the digital twin may be used, removing any uncertainty of what an NFT actually means to a collector by
delivering authenticated digital twins to the art and luxury market. Pilot projects already executed on the luxury watch industry with
a world premiere Hublot NFT watch.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; background-color: white; color: #333333"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol">&middot;</FONT></TD><TD STYLE="text-align: justify"><B>Trusted Automation:</B> The integrated WISeKey Arago Automation Platform licensing revenue model is
expected to bring significant revenue synergies and strengthen WISeKey&rsquo;s position in the fast-growing Artificial Intelligence of
Things (&ldquo;AIoT&rdquo;) market. Knowledge Automation and Data platform HIRO&trade;, developed by arago, takes a unique approach to
process automation by using AI to autonomously and independently determine how to complete and then automate end-to-end tasks based on
real time contextual data. Fully auditable and only using steps defined and approved by the customer, Knowledge Automation delivers significantly
higher automation rates at a much lower operational cost.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="text-transform: uppercase"><B>FY
2020 Results Conference Call </B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">Carlos Moreira, CEO and
Peter Ward, CFO will host a conference call on Friday, April 30, 2021, at 3:00 p.m. CET / 9:00 a.m. ET to discuss these results, <B>recent
business developments and growth initiatives. A Q&amp;A session will follow the prepared remarks. </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Interested parties may participate in the call
by dialing:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-size: 10pt">
  <TR>
    <TD STYLE="width: 50%; text-align: justify"><FONT STYLE="font-size: 10pt"><B>United States (Toll)</B></FONT></TD>
    <TD STYLE="width: 50%; text-align: justify"><FONT STYLE="font-size: 10pt">877-445-9755</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>United States (Toll Free)</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">201-493-6744</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Spain (fixed) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">900 834 236</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Spain (mobile) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">900 834 876</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>United Kingdom (fixed) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">0 800 756 3429</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>France (fixed) ATT /excl. Monaco:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">0 800 912 848</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Switzerland (fixed) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">0 800 835 525</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Switzerland (mobile) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">0 800 891 374</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Italy (fixed) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">800 791 612</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Italy (mobile) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">800 796 508</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Netherlands (fixed) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">0 800 023 4340</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Netherlands (mobile) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">0 800 022 3580</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Germany (fixed) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">0 800 182 0040</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><B>Germany (mobile) ATT:</B></FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">0 800 184 4713</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 6pt"><P STYLE="margin-top: 0pt; margin-bottom: 0pt; text-align: center; font-size: 8pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">To access the call, please dial-in approximately
five minutes before the start time. The call will also be simultaneously audio &amp; slides webcast over the Internet via this link and
such link will also be made available in the &ldquo;Investor Relations&rdquo; section of WISeKey&rsquo;s website http://wisekey.com/investors/.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">An archived version of the webinar will be available
on WISeKey&rsquo;s website following the live presentation. For any questions regarding the event, please email Lcati@equityny.com.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"><B>ADDITIONAL FINANCIAL &amp; OPERATIONAL
DATA </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>FY 2019 Key Financials - WISeKey Group </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt; font-style: italic">(Million US$)</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="7" STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid">US GAAP</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-size: 10pt; font-weight: bold; text-align: right; border-bottom: Black 1pt solid">2020</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-size: 10pt; font-weight: bold; text-align: right; border-bottom: Black 1pt solid">2019</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 50%; font-size: 10pt; text-align: left">Net sales</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 11%; font-size: 10pt; text-align: right">14.8</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 11%; font-size: 10pt; text-align: right">22.7</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-size: 10pt; text-align: left">Gross profit</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">5.5</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">9.5</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font-size: 10pt; text-align: left">Operating loss as reported</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">(18.5</TD><TD STYLE="font-size: 10pt; text-align: left">)</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">(20.5</TD><TD STYLE="font-size: 10pt; text-align: left">)</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-size: 10pt; text-align: left">Net income attributable to WISeKey as reported</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">(28.7</TD><TD STYLE="font-size: 10pt; text-align: left">)</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">8.2</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  </TABLE>


<P STYLE="margin: 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid">Non-GAAP</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-size: 10pt; font-weight: bold; text-align: right; border-bottom: Black 1pt solid">2019</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-size: 10pt; font-weight: bold; text-align: right; border-bottom: Black 1pt solid">2019</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 50%; font-size: 10pt; text-align: left">EBITDA from continuing operations</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 11%; font-size: 10pt; text-align: right">(16.9</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">)</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 11%; font-size: 10pt; text-align: right">(19.2</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">)</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-size: 10pt">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font-size: 10pt; text-align: left">Total Cash and restricted cash</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">21.8</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">16.6</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B><U>Non-GAAP Financial Measures</U></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In managing WISeKey's business on a consolidated
basis, WISeKey management develops an annual operating plan, which is approved by our Board of Directors, using non-GAAP financial measures.
In measuring performance against this plan, management considers the actual or potential impacts on these non-GAAP financial measures
from actions taken to reduce costs with the goal of increasing our gross margin and operating margin and when assessing appropriate levels
of research and development efforts. In addition, management relies upon these non-GAAP financial measures when making decisions about
product spending, administrative budgets, and other operating expenses. We believe that these non-GAAP financial measures, when coupled
with the GAAP results and the reconciliations to corresponding GAAP financial measures, provide a more complete understanding of the Company&rsquo;s
results of operations and the factors and trends affecting WISeKey&rsquo;s business. We believe that they enable investors to perform
additional comparisons of our operating results, to assess our liquidity and capital position and to analyze financial performance excluding
the effect of expenses unrelated to operations, certain non-cash expenses related to acquisitions and share-based compensation expense,
which may obscure trends in WISeKey's underlying performance. This information also enables investors to compare financial results between
periods where certain items may vary independent of business performance, and allow for greater transparency with respect to key metrics
used by management.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">These non-GAAP financial measures are provided
in addition to, and not as a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP. The presentation
of these and other similar items in WISeKey&rsquo;s non-GAAP financial results should not be interpreted as implying that these items
are non-recurring, infrequent, or unusual. Reconciliations of these non-GAAP measures to the most comparable measures calculated in accordance
with GAAP are provided in the financial statements portion of this release in a schedule entitled &ldquo;Financial Reconciliation of GAAP
to non-GAAP Results (unaudited).&rdquo;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 6pt"><P STYLE="margin-top: 0pt; margin-bottom: 0pt; text-align: center; font-size: 8pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Non-GAAP to GAAP Reconciliations</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid">Financial Reconciliation of GAAP to non-GAAP Results (unaudited)</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="7" STYLE="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">12 months to December 31,</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt; font-style: italic">(Million US$)</TD><TD STYLE="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: right">2020</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; text-align: right">2019</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 50%; font-size: 10pt; text-align: left">Operating loss as reported</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 11%; font-size: 10pt; text-align: right">(18.5</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">)</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 11%; font-size: 10pt; text-align: right">(20.5</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">)</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-size: 10pt; text-align: left">Non-GAAP adjustments from continuing operations:</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font-size: 10pt; text-align: left; text-indent: 0.85pt">Depreciation expense from continuing operations</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">1.08</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">0.8</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0.85pt">Amortization expense on intangibles from continuing operations</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">0.6</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">0.5</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">EBITDA from continuing operations</TD><TD STYLE="font-size: 10pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; font-weight: bold; text-align: right">(16.9</TD><TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">)</TD><TD STYLE="font-size: 10pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; font-weight: bold; text-align: right">(19.2</TD><TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">)</TD></TR>
  </TABLE>


<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>
<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid">GAAP to Non-GAAP Cash and Cash Equivalents</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="7" STYLE="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">As of December 31,</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt; font-style: italic">(Million US$)</TD><TD STYLE="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-size: 10pt; font-weight: bold; text-align: right; border-bottom: Black 1pt solid">2020</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-size: 10pt; font-weight: bold; text-align: right; border-bottom: Black 1pt solid">2019</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 50%; font-size: 10pt; text-align: left">Cash and cash equivalents as reported</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 11%; font-size: 10pt; text-align: right">19.7</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 11%; font-size: 10pt; text-align: right">12.1</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-size: 10pt; text-align: left">Restricted cash, current as reported</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">2.1</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">2.5</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font-size: 10pt; text-align: left; padding-bottom: 1pt">Restricted cash, noncurrent as reported</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">&mdash;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">2.0</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">Total Cash and restricted cash</TD><TD STYLE="font-size: 10pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; font-weight: bold; text-align: right">21.8</TD><TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; font-weight: bold; text-align: right">16.6</TD><TD STYLE="font-size: 10pt; font-weight: bold; text-align: left">&nbsp;</TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>About WISeKey</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">WISeKey (NASDAQ: WKEY; SIX Swiss Exchange: WIHN)
is a leading global cybersecurity company currently deploying large scale digital identity ecosystems for people and objects using Blockchain,
AI and IoT respecting the Human as the Fulcrum of the Internet. WISeKey microprocessors secure the pervasive computing shaping today&rsquo;s
Internet of Everything. WISeKey IoT has an install base of over 1.5 billion microchips in virtually all IoT sectors (connected cars, smart
cities, drones, agricultural sensors, anti-counterfeiting, smart lighting, servers, computers, mobile phones, crypto tokens etc.).&nbsp;
WISeKey is uniquely positioned to be at the edge of IoT as our semiconductors produce a huge amount of Big Data that, when analyzed with
Artificial Intelligence (AI), can help industrial applications to predict the failure of their equipment before it happens.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Our technology is Trusted by the OISTE/WISeKey&rsquo;s
Swiss based cryptographic Root of Trust (&ldquo;RoT&rdquo;) provides secure authentication and identification, in both physical and virtual
environments, for the Internet of Things, Blockchain and Artificial Intelligence. The WISeKey RoT serves as a common trust anchor to ensure
the integrity of online transactions among objects and between objects and people. For more information, visit&nbsp;www.wisekey.com.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Press and investor contacts:</B></P>

<TABLE CELLPADDING="0" STYLE="width: 100%; font-size: 10pt">
  <TR>
    <TD STYLE="width: 50%"><FONT STYLE="font-size: 10pt">WISeKey International Holding Ltd<BR>
Company Contact:&nbsp; Carlos Moreira<BR>
Chairman &amp; CEO<BR>
Tel:&nbsp;+41 22 594 3000<BR>
info@wisekey.com</FONT></TD>
    <TD STYLE="width: 50%"><FONT STYLE="font-size: 10pt">WISeKey Investor Relations (US)<BR>
Contact:&nbsp; Lena Cati<BR>
The Equity Group Inc.<BR>
Tel:&nbsp;+1 212 836-9611<BR>
lcati@equityny.com</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Disclaimer:</B><BR>
This communication expressly or implicitly contains certain forward-looking statements concerning WISeKey International Holding Ltd and
its business. Such statements involve certain known and unknown risks, uncertainties and other factors, which could cause the actual results,
financial condition, performance or achievements of WISeKey International Holding Ltd to be materially different from any future results,
performance or achievements expressed or implied by such forward-looking statements. WISeKey International Holding Ltd is providing this
communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information,
future events or otherwise.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This press release does not constitute an offer
to sell, or a solicitation of an offer to buy, any securities, and it does not constitute an offering prospectus within the meaning of
article 652a or article 1156 of the Swiss Code of Obligations or a listing prospectus within the meaning of the listing rules of the SIX
Swiss Exchange. Investors must rely on their own evaluation of WISeKey and its securities, including the merits and risks involved. Nothing
contained herein is, or shall be relied on as, a promise or representation as to the future performance of WISeKey.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="border-bottom: Black 2px solid; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">5</P>

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