    <SEC-DOCUMENT>0001144204-18-004421-index.html : 20180130
    <SEC-HEADER>0001144204-18-004421.hdr.sgml : 20180130
    <ACCEPTANCE-DATETIME>20180130060637
    ACCESSION NUMBER:		0001144204-18-004421
    CONFORMED SUBMISSION TYPE:	SC 13E3/A
    PUBLIC DOCUMENT COUNT:		17
    FILED AS OF DATE:		20180130
    DATE AS OF CHANGE:		20180130
    GROUP MEMBERS:		ADVANTECH CAPITAL L.P.
    GROUP MEMBERS:		C-BRIDGE HEALTHCARE FUND II, L.P.
    GROUP MEMBERS:		MR. WEIDONG YIN
    GROUP MEMBERS:		SAIF PARTNERS IV L.P.
    GROUP MEMBERS:		SINOVAC (CAYMAN) LTD
    GROUP MEMBERS:		SINOVAC AMALGAMATION SUB LTD
    GROUP MEMBERS:		VIVO CAPITAL FUND VIII, L.P.
    GROUP MEMBERS:		VIVO CAPITAL SURPLUS FUND VIII, 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 13E3/A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	005-79318
    		FILM NUMBER:		18557414

    	BUSINESS ADDRESS:
    		STREET 1:		39 SHANGDI XI ROAD
    		STREET 2:		HAIDIAN DISTRICT
    		CITY:			BEIJING
    		STATE:			F4
    		ZIP:			100085
    		BUSINESS PHONE:		86-10-82890088

    	MAIL ADDRESS:
    		STREET 1:		39 SHANGDI XI ROAD
    		STREET 2:		HAIDIAN DISTRICT
    		CITY:			BEIJING
    		STATE:			F4
    		ZIP:			100085

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	NET FORCE SYSTEMS INC
    		DATE OF NAME CHANGE:	19991110

    FILED BY:

    	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 13E3/A

    	BUSINESS ADDRESS:
    		STREET 1:		39 SHANGDI XI ROAD
    		STREET 2:		HAIDIAN DISTRICT
    		CITY:			BEIJING
    		STATE:			F4
    		ZIP:			100085
    		BUSINESS PHONE:		86-10-82890088

    	MAIL ADDRESS:
    		STREET 1:		39 SHANGDI XI ROAD
    		STREET 2:		HAIDIAN DISTRICT
    		CITY:			BEIJING
    		STATE:			F4
    		ZIP:			100085

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	NET FORCE SYSTEMS INC
    		DATE OF NAME CHANGE:	19991110
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>SC 13E3/A
    <SEQUENCE>1
    <FILENAME>tv483956_sc13e3a.htm
    <DESCRIPTION>SCHEDULE 13E3/A
    <TEXT>
    Document 1 - file: tv483956_sc13e3a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.(A)(1)
    <SEQUENCE>2
    <FILENAME>tv483956_ex99-a1.htm
    <DESCRIPTION>EXHIBIT (A)-(1)
    <TEXT>
    Document 2 - file: tv483956_ex99-a1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.(C)(3)
    <SEQUENCE>3
    <FILENAME>tv483956_ex99-c3.htm
    <DESCRIPTION>EXHIBIT (C)-(3)
    <TEXT>
    Document 3 - file: tv483956_ex99-c3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.(C)(4)
    <SEQUENCE>4
    <FILENAME>tv483956_ex99-c4.htm
    <DESCRIPTION>EXHIBIT (C)-(4)
    <TEXT>
    Document 4 - file: tv483956_ex99-c4.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>tv483956_ex99-a1img1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: tv483956_ex99-a1img1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>tv483956_ex99-c3img01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: tv483956_ex99-c3img01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>tv483956_ex99-c3img02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: tv483956_ex99-c3img02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>tv483956_ex99-c3img03.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: tv483956_ex99-c3img03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>tv483956_ex99-c3img04.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: tv483956_ex99-c3img04.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>tv483956_ex99-c3img05.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: tv483956_ex99-c3img05.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>tv483956_ex99-c3img06.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: tv483956_ex99-c3img06.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>tv483956_ex99-c3img07.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: tv483956_ex99-c3img07.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>tv483956_ex99-c3img08.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: tv483956_ex99-c3img08.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>tv483956_ex99-c3img09.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: tv483956_ex99-c3img09.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>tv483956_ex99-c3img10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: tv483956_ex99-c3img10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>tv483956_ex99-c3img11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: tv483956_ex99-c3img11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>tv483956_ex99-c4img01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: tv483956_ex99-c4img01.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>