<SEC-DOCUMENT>0001104659-21-093760.txt : 20210720
<SEC-HEADER>0001104659-21-093760.hdr.sgml : 20210720
<ACCEPTANCE-DATETIME>20210720091252
ACCESSION NUMBER:		0001104659-21-093760
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210719
FILED AS OF DATE:		20210720
DATE AS OF CHANGE:		20210720

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SINOVAC BIOTECH LTD
		CENTRAL INDEX KEY:			0001084201
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			B9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32371
		FILM NUMBER:		211099601

	BUSINESS ADDRESS:	
		STREET 1:		NO. 15 ZHI TONG ROAD,
		STREET 2:		ZHONGGUANCUN TECH PARK, CHANGPING DISTR.
		CITY:			BEIJING
		STATE:			F4
		ZIP:			102200
		BUSINESS PHONE:		86-10-82890088

	MAIL ADDRESS:	
		STREET 1:		NO. 15 ZHI TONG ROAD,
		STREET 2:		ZHONGGUANCUN TECH PARK, CHANGPING DISTR.
		CITY:			BEIJING
		STATE:			F4
		ZIP:			102200

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NET FORCE SYSTEMS INC
		DATE OF NAME CHANGE:	19991110
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>tm2122637d1_6k.htm
<DESCRIPTION>FORM 6-K
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<P STYLE="margin: 0">&nbsp;</P>

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

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

<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>FORM 6-K</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>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 </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>THE 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">For the month of July 2021</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"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Commission File Number: 001-32371</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"></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: 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 14pt">SINOVAC
BIOTECH LTD.</FONT></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">No. 39 Shangdi Xi Rd, Haidian District</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Beijing 10085, People&#8217;s Republic of China</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Address of principal executive offices)</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">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; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Form 20-F&nbsp;&nbsp;&nbsp;&nbsp; <FONT STYLE="font-family: Wingdings">&#120;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Form
40-F &nbsp;&nbsp;&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT></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">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Indicate by check mark if the registrant is submitting the Form 6-K
in paper as permitted by Regulation S-T Rule 101(b)(1):________________</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">Indicate by check mark if the registrant is submitting the Form 6-K
in paper as permitted by Regulation S-T Rule 101(b)(7):________________</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; text-align: center"></P>

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">SINOVAC BIOTECH LTD.</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%">&nbsp;</TD>
    <TD STYLE="width: 3%">By:</TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 47%">/s/ Nan Wang</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Name:&nbsp;&nbsp;</TD>
    <TD>Nan Wang</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Title:</TD>
    <TD>Chief Financial Officer</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Date: July 19, 2021</P>

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

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

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

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  <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; width: 10%"><A HREF="tm2122637d1_ex99-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-variant: normal; font-weight: normal">Exhibit
  99.1</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
  <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; width: 88%"><A HREF="tm2122637d1_ex99-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-variant: normal; font-weight: normal">Press
  Release</FONT></A></TD></TR>
</TABLE>


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<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>tm2122637d1_ex99-1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
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<P STYLE="text-align: right; margin: 0"><B>Exhibit 99.1</B></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SINOVAC
Receives Approval on Sabin Strain Based Inactivated Polio Vaccine (sIPV) to Support Global Polio Endgame Strategy</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.35in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">BEIJING,
China, July 19, 2021 -- SINOVAC Biotech Ltd. (NASDAQ: SVA) (&#8220;SINOVAC&#8221; or the &#8220;Company&#8221;), a leading provider of
biopharmaceutical products in China, today announced it received a drug registration approval from t<FONT STYLE="font-weight: normal">he
National </FONT>Medical Product Administration of China (&#8220;NMPA&#8221;) for its <FONT STYLE="font-weight: normal">Sabin strain based
inactivated polio vaccine (Vero cells) (&quot;sIPV&quot;) on July 12, 2021. </FONT>The vaccine is expected to be available on the market
by the end of 2021. SINOVAC also submitted an application for prequalification (PQ) to the World Health Organization (&#8220;WHO&#8221;)
in early 2020 and the WHO conducted its on-site inspection in February 2021.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SINOVAC's
sIPV is approved for use on infants and children aged 2 months and above to prevent poliomyelitis due to infection of types I, II and
III polioviruses. The primary immunization requires 3 doses at least one month apart, beginning at 2 months of age. A booster shot will
be given at 18 month of age. According to the results of phase III clinical trial, no serious or rare adverse events were observed in
relation to vaccinations, which indicates the good safety profile of SINOVAC&#8217;s sIPV vaccine. Inactivated polio vaccine (IPV) contains
no live virus and, thus, carries no risk of emergence from vaccine-derived poliovirus (VDPV) or vaccine-associated paralytic polio (VAPP).</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
the COVID-19 pandemic impact persists, countries where the wild polio strain still exist have been experiencing an increase in prevalence
of polio casese. In addition, some other countries also reported more vaccine-derived poliovirus (VDPV) and vaccine-associated paralytic
polio (VAPP) cases as a result of the virus circulating in the environment and human body, especially as the number of VAPP cases has
reached a peak in the past 10 years.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
WHO called for Expressions of Interest (EOI) in 2010, 2011 and 2012 from vaccine manufacturers in the private or public sectors to collaborate
with the WHO and Intravacc (Institute for Translational Vaccinology) from The Netherlands to develop and supply sIPV under the Global
Polio Eradication Initiative. SINOVAC submitted its EOI in 2012 and was selected as a technology transfer recipient after the qualification
review and site inspection by the WHO and Intravacc. In 2014, SINOVAC entered into a license agreement with Intravacc to develop and
commercialize the Sabin strain based Inactivated Polio Vaccine (sIPV) for distribution to China and other countries. According to the
agreement, SINOVAC committed to commercializing the vaccine in China, inclusive of conducting clinical trials, obtaining regulatory approval,
commercializing the sIPV vaccine and seeking pre-qualification by WHO.&nbsp; In addition, SINOVAC committed to having the capacity to
supply, or make arrangements for the supply of, sIPV to the public sector in other countries, as well as international organizations
in sufficient quantities to ensure a meaningful contribution to the global endgame of polio eradication.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Poliomyelitis,
commonly shortened to polio, is an infectious disease caused by the poliovirus, which mainly affects children under 5 years of age.
Poliovirus is usually spread from person to person through infected fecal matter entering the mouth. It may also be spread through
food or water containing human feces and, less commonly, from infected saliva, causing damage to motor neurons in the anterior horn
of the spinal. The main symptoms are fever, general malaise and, in severe cases, pain in the limbs, and irregularly distributed and
mild flaccid paralysis.</FONT></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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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Global Polio Eradication Initiative (GPEI), launched in 1988, is dedicated to the eradication of polio worldwide. Although global polio
cases have decreased by 99.9%, there are still some barriers to vaccinate children around the world against polio, and polio control
remains the top priority as a public health emergency of international concern. In addition, the COVID-19 pandemic has led to an increase
in polio cases. A total of 1,226 cases of all types of polio occurred last year, compared to only 138 cases in 2018. On June 10, the
GPEI launched the Polio Eradication Strategy 2022-2026: Meeting the Promise to overcome the final challenges to polio eradication.</FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SINOVAC
Biotech Ltd. is a China-based biopharmaceutical company that focuses on the research, development, manufacturing and commercialization
of vaccines that protect against human infectious diseases. SINOVAC's product portfolio includes vaccines against COVID-19, enterovirus71
(EV71), hepatitis A and B, seasonal influenza, 23-Valent pneumococcal polysaccharide (&#8220;PPV&#8221;), H5N1 pandemic influenza (avian
flu), H1N1 influenza (swine flu), varicella and mumps. SINOVAC&#8217;s COVID-19 vaccine, CoronaVac&reg;, has been granted emergency use
approval or conditional marketing authorization by over 50 countries or regions worldwide. Healive&reg;, the hepatitis A vaccine manufactured
by the Company, has passed the assessment under WHO prequalification procedures in 2017. The EV71 vaccine, an innovative vaccine developed
by SINOVAC against hand foot and mouth disease caused by EV71, was commercialized in China in 2016. In 2009, SINOVAC was the first company
worldwide to receive approval for its H1N1 influenza vaccine, which it has supplied to the Chinese Government's vaccination campaign
and stockpiling program. The Company is also the only supplier of the H5N1 pandemic influenza vaccine to the government stockpiling program.
In 2021, SINOVAC&#8217;s Sabin-strain inactivated polio vaccine has approved for registration. The Company is developing several new
products including combined vaccines. SINOVAC primarily sells its vaccines in China, while also exploring growth opportunities in international
markets. The Company is seeking market authorization of its products in over 30 countries outside of China. For more information, please
see the Company&#8217;s website at www.sinovac.com.</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">Safe
Harbor Statement</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
press release may include certain statements that are not descriptions of historical facts, but are forward-looking statements.
These statements are made under the &#8220;safe harbor&#8221; provisions of the U.S. Private Securities Litigation Reform Act of
1995. These forward-looking statements can be identified by terminology such as
&#8220;will,&#8221;&#8220;expects,&#8221;&#8220;anticipates,&#8221;&#8220;future,&#8221;
&#8220;intends,&#8221;&#8220;plans,&#8221;&#8220;believes,&#8221;&#8220;estimates&#8221; and similar statements. Forward-looking
statements involve risks, uncertainties and other factors that could cause actual results to differ materially from those contained
in any such statements. In particular, the outcome of any litigation is uncertain, and the Company cannot predict the potential
results of the litigation it filed or filed against it by others. Additionally, the triggering of a shareholder rights plan is
nearly unprecedented, and the Company cannot predict the impact on the Company or its stock price as a result of the trigger of the
rights plan.</FONT></P>

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

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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">Sinovac
Biotech Ltd.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><BR>
Helen Yang&nbsp;<BR>
Tel: +86-10-8279-9871 or&nbsp;<BR>
+86-10-5693-1897&nbsp;<BR>
Fax: +86-10-6296-6910&nbsp;<BR>
Email:&nbsp;ir@sinovac.com</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">ICR
Inc.</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;<BR>
Bill Zima<BR>
U.S.: 1-646-308-1707<BR>
Email:&nbsp;william.zima@icrinc.com</FONT></P>

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