1934 Act Registration No. 1-14700

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 OF
THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2007

Taiwan Semiconductor Manufacturing Company Ltd.

(Translation of Registrant’s Name Into English)

No. 8, Li-Hsin Rd. 6,
Hsinchu Science Park,
Taiwan
(Address of Principal Executive Offices)

     (Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)

     Form 20-F √     Form 40-F   

     (Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.)

     Yes        No √     

(If “Yes” is marked, indicated below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82: ___.)

Taiwan Semiconductor Manufacturing Company Limited

For the month of August 2007

This is to report 1) the changes in the shareholdings of our directors, executive officers and shareholders who own more than 10% of total outstanding common shares of Taiwan Semiconductor Manufacturing Company Ltd. (The Company; “TSMC”) (NYSE:TSM); 2) the pledge and clear of pledge of TSMC common shares by our directors, executive officers and shareholders who own more than 10% of total outstanding common shares of TSMC; 3) the acquisition of assets by TSMC and 4) the disposition of assets by TSMC for the month of August 2007.

1) The changes in the shareholdings of our directors, supervisors, executive officers and shareholders who own more than 10% of total outstanding common shares:

		Number of		Number of
		shares held as		shares held as
Title	Name	of July 31, 2007		of August 31, 2007		Changes
Vice Chairman	F. C. Tseng		37,502,589		37,272,589		-230,000
Director, President & CEO	Rick Tsai		31,461,025		31,351,025		-110,000
Senior Vice President	Mark Liu		12,521,439		12,461,439		-60,000
Vice President	M. C. Tzeng		7,138,682		7,120,682		-18,000
Vice President	Jason Chen		1,957,270		1,927,270		-30,000
Vice President	Fu-Chieh Hsu		1,500,874		1,490,874		-10,000
Vice President	Yuan-Chen Sun		5,515,698		5,485,698		-30,000
Senior Director	L.C. Tu		8,801,786		8,790,786		-11,000

2) The pledge and clear of pledge of TSMC common shares by our directors, supervisors, executive officers and shareholders who own more than 10% of total outstanding common shares:

				Accumulated number of common
Title	Name	Date of clear pledge		shares pledged as of August 31, 2007
Vice President	Jason Chen		8/21/2007		470,000
Vice President & General Counsel	Richard Thurston		8/14/2007		580,000

3) The acquisition of assets:

Description of assets	Purchase price
Machinery Equipment	NT$1,630,057,849
Bond Funds	NT$2,196,000,000
Equity	NT$4,926,880,000

4) The disposition of assets: None.

SIGNATURES

     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.

	Taiwan Semiconductor Manufacturing Company Ltd.
Date: September 24, 2007	By	/s/ Lora Ho
		Lora Ho Vice President & Chief Financial Officer