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 March 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 þ          Form 40-F o

     (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 o          No þ

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

 

 

TSMC February 2007 Sales Report

Hsinchu, Taiwan, R.O.C. — March 9, 2007 — TSMC (TAIEX: 2330, NYSE: TSM) today announced its net sales for February 2007: on an unconsolidated basis, sales were NT$20,577 million, a decrease of 1.3 percent from January 2007 and a decrease of 14.3 percent from February 2006.

On a consolidated basis, net sales for February 2007 were NT$ 20,948 million, a decrease of 2.1 percent from January 2007.

TSMC Sales Report (Unconsolidated):

										(Unit: NT$ million)
Net Sales		2007*				2006				Increase (Decrease) %
February			20,577				24,009				(14.3	)
January through February			41,429				50,187				(17.5	)

TSMC Spokesperson:
Ms. Lora Ho
Vice President and CFO
Tel: 886-3-566-4602

TSMC Acting Spokesperson:
Mr. J.H. Tzeng
Deputy Director, PR Department, TSMC
Tel: 886-3-505-5028
Mobile: 0928-882607
Fax: 886-3-567-0121
E-Mail: jhtzeng@tsmc.com

For further information, please contact:
Richard C.Y. Chung
Media Relations Manager, TSMC
Tel: 886-3-505-5038
Mobile: 886-911-258751
Fax: 886-3-567-0121
E-Mail: cychung@tsmc.com

Taiwan Semiconductor Manufacturing Company Limited
March 09, 2007

This is to report the changes or status of 1) sales volume, 2) funds lent to other parties, 3) endorsements and guarantees, and 4) financial derivative transactions for the period of February 2007.

1)

Sales volume (in NT$ thousand)

Period		Items				2007				2006
Feb.		Net sales					20,577,285				24,008,853
Jan.-Feb.		Net sales					41,428,680				50,186,460

2)		Funds lent to other parties (in NT$ thousand) None.
3)		Endorsements and guarantees (in NT$ thousand) None.
4)		Financial derivative transactions (in NT$ thousand) TSMC Hedging purpose (for assets / liabilities denominated in foreign currencies)

														Others
							Forward				Swap			Buy put				Sell call
Margin Payment							—				—				—				—
Premium Income (Expense)							—				—				—				—
Outstanding Contracts		Notional Amount					22,170,810				11,503,800				—				—
		Mark to Market Profit/Loss					(22,233	)			(85,587	)			—				—
Expired Contracts		Notional Amount					15,488,191				19,342,485				1,310,840				1,310,840
		Realized Profit/Loss					(3,227	)			(359,823	)			—				—

														Others
							Forward				Swap			Buy put				Sell call
Margin Payment							—				—				—				—
Premium Income (Expense)							—				—				—				—
Outstanding Contracts		Notional Amount					4,231				—				—				—
		Mark to Market Profit/Loss					94				—				—				—
Expired Contracts		Notional Amount					29,145				—				—				—
		Realized Profit/Loss					(294	)			—				—				—

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.