Warburg Pincus & Co. SC 13D/A China Biologic Products / WARBURG PINCUS & CO ownership change

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 3)

China Biologic Products, Inc.

(Name of Issuer)

Common Stock, $0.0001 par value per share

(Title of Class of Securities)

16938C106

(CUSIP Number)

Scott A. Arenare, Esq.

Managing Director and General Counsel

Warburg Pincus LLC

450 Lexington Avenue

New York, NY  10017

(212) 878-0600

With a copy to:

Howard Zhang, Esq.

Davis Polk & Wardwell LLP

261F, Twin Towers West

B12, Jian Guo Men Wai Avenue

Beijing 100022

People's Republic of China

+(86) 10 8567 5002

(Name, Address and Telephone Number of Person Authorized to

Receive Notices and Communications)

February 27, 2011

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-l(f) or 240.13d-l(g), check the following box.  o

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

1

 CUSIP No. 16938C106

1	NAME OF REPORTING PERSONS Warburg Pincus Private Equity X, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)	o
	(b)	x
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)	o
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER -0-
	8	SHARED VOTING POWER 4,670,580*
	9	SOLE DISPOSITIVE POWER -0-
	10	SHARED DISPOSITIVE POWER 4,670,580*

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,670,580*
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.3%*
14	TYPE OF REPORTING PERSON PN

1 See Item 5 of the Schedule 13D/A, Amendment No. 2 filed on December 17, 2010.

2

 CUSIP No. 16938C106

1	NAME OF REPORTING PERSONS Warburg Pincus X Partners, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)	o
	(b)	x
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)	o
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER -0-
	8	SHARED VOTING POWER 149,420*
	9	SOLE DISPOSITIVE POWER -0-
	10	SHARED DISPOSITIVE POWER 149,420*

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 149,420*
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) less than 1%*
14	TYPE OF REPORTING PERSON PN

1 See Item 5 of the Schedule 13D/A, Amendment No. 2 filed on December 17, 2010.

3

 CUSIP No. 16938C106

1	NAME OF REPORTING PERSONS Warburg Pincus X, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)	o
	(b)	x
3	SEC USE ONLY
4	SOURCE OF FUNDS N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)	o
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER -0-
	8	SHARED VOTING POWER 4,820,000*
	9	SOLE DISPOSITIVE POWER -0-
	10	SHARED DISPOSITIVE POWER 4,820,000*

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,820,000*
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9%*
14	TYPE OF REPORTING PERSON PN

1 See Item 5 of the Schedule 13D/A, Amendment No. 2 filed on December 17, 2010.

4

 CUSIP No. 16938C106

1	NAME OF REPORTING PERSONS Warburg Pincus X LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)	o
	(b)	x
3	SEC USE ONLY
4	SOURCE OF FUNDS N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)	o
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER -0-
	8	SHARED VOTING POWER 4,820,000*
	9	SOLE DISPOSITIVE POWER -0-
	10	SHARED DISPOSITIVE POWER 4,820,000*

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,820,000*
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9%*
14	TYPE OF REPORTING PERSON OO

1 See Item 5 of the Schedule 13D/A, Amendment No. 2 filed on December 17, 2010.

5

 CUSIP No. 16938C106

1	NAME OF REPORTING PERSONS Warburg Pincus Partners, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)	o
	(b)	x
3	SEC USE ONLY
4	SOURCE OF FUNDS N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)	o
6	CITIZENSHIP OR PLACE OF ORGANIZATION New York

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER -0-
	8	SHARED VOTING POWER 4,820,000*
	9	SOLE DISPOSITIVE POWER -0-
	10	SHARED DISPOSITIVE POWER 4,820,000*

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,820,000*
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9%*
14	TYPE OF REPORTING PERSON OO

1 See Item 5 of the Schedule 13D/A, Amendment No. 2 filed on December 17, 2010.

6

 CUSIP No. 16938C106

1	NAME OF REPORTING PERSONS Warburg Pincus & Co.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)	o
	(b)	x
3	SEC USE ONLY
4	SOURCE OF FUNDS N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)	o
6	CITIZENSHIP OR PLACE OF ORGANIZATION New York

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER -0-
	8	SHARED VOTING POWER 4,820,000*
	9	SOLE DISPOSITIVE POWER -0-
	10	SHARED DISPOSITIVE POWER 4,820,000*

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,820,000*
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9%*
14	TYPE OF REPORTING PERSON PN

1 See Item 5 of the Schedule 13D/A, Amendment No. 2 filed on December 17, 2010.

7

 CUSIP No. 16938C106

1	NAME OF REPORTING PERSONS Warburg Pincus LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)	o
	(b)	x
3	SEC USE ONLY
4	SOURCE OF FUNDS N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)	o
6	CITIZENSHIP OR PLACE OF ORGANIZATION New York

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER -0-
	8	SHARED VOTING POWER 4,820,000*
	9	SOLE DISPOSITIVE POWER -0-
	10	SHARED DISPOSITIVE POWER 4,820,000*

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,820,000*
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9%*
14	TYPE OF REPORTING PERSON OO

1 See Item 5 of the Schedule 13D/A, Amendment No. 2 filed on December 17, 2010.

8

 CUSIP No. 16938C106

1	NAME OF REPORTING PERSONS Charles R. Kaye
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)	o
	(b)	x
3	SEC USE ONLY
4	SOURCE OF FUNDS N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)	o
6	CITIZENSHIP OR PLACE OF ORGANIZATION United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER -0-
	8	SHARED VOTING POWER 4,820,000*
	9	SOLE DISPOSITIVE POWER -0-
	10	SHARED DISPOSITIVE POWER 4,820,000*

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,820,000*
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9%*
14	TYPE OF REPORTING PERSON IN

1 See Item 5 of the Schedule 13D/A, Amendment No. 2 filed on December 17, 2010.

9

 CUSIP No. 16938C106

1	NAME OF REPORTING PERSONS Joseph P. Landy
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
	(a)	o
	(b)	x
3	SEC USE ONLY
4	SOURCE OF FUNDS N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)	o
6	CITIZENSHIP OR PLACE OF ORGANIZATION United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER -0-
	8	SHARED VOTING POWER 4,820,000*
	9	SOLE DISPOSITIVE POWER -0-
	10	SHARED DISPOSITIVE POWER 4,820,000*

11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,820,000*
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES	o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 19.9%*
14	TYPE OF REPORTING PERSON IN

1 See Item 5 of the Schedule 13D/A, Amendment No. 2 filed on December 17, 2010.

10

Pursuant to Rule 13d-2 promulgated under the Act, this Schedule 13D/A (this “Amendment No. 3”) amends and supplements the Schedule 13D filed on November 24, 2010 (the “Original Schedule 13D”, as amended and supplemented by the Schedule 13D/A filed on December 13, 2010 and the Schedule 13D/A filed on December 17, 2010, together with this Amendment No. 3, the “Schedule 13D”), and is being filed on behalf of Warburg Pincus Private Equity X, L.P., a Delaware limited partnership (“WP X”), Warburg Pincus X Partners, L.P., a Delaware limited partnership (“WPP X”, and together with WP X, the “Funds”), Warburg Pincus X, L.P., a Delaware limited partnership (“WP X LP”) and the sole general partner of each of the Funds, Warburg Pincus X LLC, a Delaware limited liability company (“WP X LLC”) and the sole general partner of WP X LP, Warburg Pincus Partners, LLC, a New York limited liability company (“WPP LLC”) and the sole member of WP X LLC, Warburg Pincus LLC, a New York limited liability company (“WP LLC”) that manages each of the Funds, Warburg Pincus & Co., a New York general partnership (“WP”) and the managing member of WPP LLC, and Messrs. Charles R. Kaye and Joseph P. Landy, each a Managing General Partner of WP and Co-President and Managing Member of WP LLC (Mr. Kaye, Mr. Landy, WP X, WPP X, WP X LP, WP X LLC, WPP LLC, WP LLC and WP collectively being referred to as the “Reporting Persons”). This Amendment No. 3 relates to the common stock, par value $0.0001 par value per share (the “Shares”), of China Biologic Products, Inc., a Delaware corporation (the “Company”).

All capitalized terms used herein which are not defined herein have the meanings given to such terms in the Original Schedule 13D.

Item 4.  Purpose of Transaction

Item 4 of the Schedule 13D is hereby supplemented by inserting the following after the last paragraph thereof:

Pursuant to the terms of the May 2010 Stock Purchase Agreement, a nominee of the Funds, Dr. Bing Li, was appointed as a director of the Company on February 27, 2011.

11

SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct.

Dated: March 3, 2011

WARBURG PINCUS PRIVATE EQUITY X, L.P.
By: Warburg Pincus X, L.P., its general partner
By: Warburg Pincus X LLC, its general partner
By: Warburg Pincus Partners, LLC, its sole member
By: Warburg Pincus & Co., its managing member
By:	/s/ Scott A. Arenare
	Name: Scott A. Arenare
	Title: Partner
WARBURG PINCUS X PARTNERS, L.P.
By: Warburg Pincus X, L.P., its general partner
By: Warburg Pincus X LLC, its general partner
By: Warburg Pincus Partners, LLC, its sole member
By: Warburg Pincus & Co., its managing member
By:	/s/ Scott A. Arenare
	Name: Scott A. Arenare
	Title: Partner
WARBURG PINCUS X, L.P.
By: Warburg Pincus X LLC, its general partner
By: Warburg Pincus Partners, LLC, its sole member
By: Warburg Pincus & Co., its managing member
By:	/s/ Scott A. Arenare
	Name: Scott A. Arenare
	Title: Partner
WARBURG PINCUS X LLC
By: Warburg Pincus Partners, LLC, its sole member
By: Warburg Pincus & Co., its managing member
By:	/s/ Scott A. Arenare
	Name: Scott A. Arenare
	Title: Partner
WARBURG PINCUS PARTNERS, LLC
By: Warburg Pincus & Co., its managing member
By:	/s/ Scott A. Arenare
	Name: Scott A. Arenare
	Title: Partner

12

WARBURG PINCUS & CO.
By:	/s/ Scott A. Arenare
	Name: Scott A. Arenare
	Title: Partner
WARBURG PINCUS LLC
By:	/s/ Scott A. Arenare
	Name: Scott A. Arenare
	Title: Managing Director
CHARLES R. KAYE
By:	/s/ Scott A. Arenare
	Name: Charles R. Kaye
	By: Scott A. Arenare, *Attorney-in-fact
JOSEPH P. LANDY
By:	/s/ Scott A. Arenare
	Name: Joseph P. Landy
	By: Scott A. Arenare, **Attorney-in-fact

* Power of Attorney given by Mr. Kaye was previously filed with the SEC on March 2, 2006, as an exhibit to a Schedule 13D filed by Building Products, LLC with respect to Builders FirstSource, Inc.

** Power of Attorney given by Mr. Landy was previously filed with the SEC on March 2, 2006, as an exhibit to a Schedule 13D filed by Building Products, LLC with respect to Builders FirstSource, Inc.

13