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 June 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 May 2007 Sales Report

Hsinchu, Taiwan, R.O.C. — June 8, 2007 — TSMC (TAIEX: 2330, NYSE: TSM) today announced its net sales for May 2007: on an unconsolidated basis, sales were NT$25,093 million, an increase of 11.5 percent over April 2007 and a decrease of 6.3 percent from May 2006. Revenues for January through May 2007 totaled NT$110,953 million, a decrease of 15.4 percent compared to the same period in 2006.

On a consolidated basis, net sales for May 2007 were NT$ 25,712 million, an increase of 11.3 percent over April 2007 and a decrease of 5.2 percent from May 2006; revenues for January through May 2007 totaled NT$113,703 million, a decrease of 14.1 percent compared to the same period in 2006.

TSMC Sales Report (Unconsolidated):

(Unit: NT$ million)

	Net Sales				2007	*				2006				Increase (Decrease) %
	May				25,093					26,770					(6.3)
	January through May				110,953					131,226					(15.4)

* Year 2007 figures have not been audited.

TSMC Sales Report (Consolidated):

(Unit: NT$ million)

	Net Sales				2007	*				2006				Increase (Decrease) %
	May				25,712					27,124					(5.2)
	January through May				113,703					132,363					(14.1)

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
June 08, 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 May 2007.

1) Sales volume (in NT$ thousand)

	Period			Items						2007					2006
	May			Net sales						25,093,483					26,770,174
	Jan — May			Net sales						110,952,781					131,225,894

2) Funds lent to other parties (in NT$ thousand)

				Limit of lending					May					Bal. as of period end
	TSMC				105,725,124					—					—
	TSMC’s subsidiaries				32,621,715					—					—

3) Endorsements and guarantees (in NT$ thousand)

				Limit of endorsements					May					Bal. as of period end
	TSMC				132,156,405					—					—
	TSMC’s subsidiaries				N/A					—					—
	TSMC endorses for subsidiaries									—					—
	TSMC’s subsidiaries endorse for TSMC									—					—
	TSMC endorses for PRC companies									—					—
	TSMC’s subsidiaries endorse for PRC companies									—					—

4) Financial derivative transactions (in NT$ thousand)

     TSMC

     Hedging purpose (for assets/liabilities denominated in foreign currencies)

									Forward					Swap								Others
																			Buy put					Sell call
	Margin Payment									—					—					—					—
	Premium Income (Expense)									—					—					—					—
	Outstanding Contracts			Notional Amount						3,827,759					22,381,770					—					—
				Mark to Market Profit/Loss						40,654					75,315					—					—
	Expired Contracts			Notional Amount						9,548,359					84,624,015					1,310,840					1,310,840
				Realized Profit/Loss						(54,294)					(761,010	)				—					—

     TSMC’s subsidiaries

     Hedging purpose (for assets/liabilities denominated in foreign currencies)

									Forward					Swap								Others
																			Buy put					Sell call
	Margin Payment									—					—					—					—
	Premium Income (Expense)									—					—					—					—
	Outstanding Contracts			Notional Amount						21,030					—					—					—
				Mark to Market Profit/Loss						(298	)				—					—					—
	Expired Contracts			Notional Amount						66,210					—					—					—
				Realized Profit/Loss						(380	)				—					—					—

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.