<SEC-DOCUMENT>0001104659-22-126053-index.html : 20221212
<SEC-HEADER>0001104659-22-126053.hdr.sgml : 20221212
<ACCEPTANCE-DATETIME>20221212064426
ACCESSION NUMBER:		0001104659-22-126053
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20221212
DATE AS OF CHANGE:		20221212
GROUP MEMBERS:		SAIF IV GP CAPITAL LTD.
GROUP MEMBERS:		SAIF IV GP, L.P.

SUBJECT COMPANY:	

	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:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-79318
		FILM NUMBER:		221456103

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SAIF Partners IV L.P.
		CENTRAL INDEX KEY:			0001472789
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			E9

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		SAIF PARTNERS, 2 PACIFIC PL., STE. 2115
		STREET 2:		88 QUEENSWAY
		CITY:			HONG KONG
		STATE:			K3
		ZIP:			00000
		BUSINESS PHONE:		852-2918-2205

	MAIL ADDRESS:	
		STREET 1:		SAIF PARTNERS, 2 PACIFIC PL., STE. 2115
		STREET 2:		88 QUEENSWAY
		CITY:			HONG KONG
		STATE:			K3
		ZIP:			00000
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>tm2231278d1_sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: tm2231278d1_sc13da.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-7.02
<SEQUENCE>2
<FILENAME>tm2231278d1_ex7-02.htm
<DESCRIPTION>EXHIBIT 7.02
<TEXT>
Document 2 - file: tm2231278d1_ex7-02.htm

</DOCUMENT>
</SEC-DOCUMENT>