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

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 August 2007 Sales Report

Hsinchu, Taiwan, R.O.C. — September 10, 2007 — TSMC (TAIEX: 2330, NYSE: TSM) today announced its net sales for August 2007: on an unconsolidated basis, sales were NT$29,199 million, an increase of 1.5 percent over July 2007 and an increase of 8.1 percent over August 2006. Revenues for January through August 2007 totaled NT$194,163 million, a decrease of 8.9 percent compared to the same period in 2006.

On a consolidated basis, net sales for August 2007 were NT$ 30,019 million, an increase of 1.8 percent over July 2007 and an increase of 10 percent from August 2006; revenues for January through August 2007 totaled NT$199,317 million, a decrease of 7.4 percent compared to the same period in 2006.

“Due to some customers’ requested pull-in, TSMC’s third quarter 2007 financial performance is expected to be better than the guidance given on July 26, 2007: Revenue is expected to be between NT$87 billion and NT$89 billion. Both gross profit margin and operating profit margin are expected to be better than the high end of the previous guidance by less than one percentage point,” said Ms. Lora Ho, VP and Chief Financial Officer of TSMC.

TSMC Sales Report (Unconsolidated):

(Unit: NT$ million)

Net Sales		2007*				2006				Increase (Decrease) %
August			29,199				27,000				8.1
January through August			194,163				213,087				(8.9	)

TSMC Sales Report (Consolidated):

(Unit: NT$ million)

Net Sales		2007*				2006				Increase (Decrease) %
August			30,019				27,284				10.0
January through August			199,317				215,211				(7.4	)

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
Technical 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
September 10, 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 August 2007.

1)

Sales volume (in NT$ thousand)

Period		Items				2007				2006
Aug.		Net sales					29,198,760				26,999,936
Jan.-Aug.		Net sales					194,162,909				213,087,333

2)

Funds lent to other parties (in NT$ thousand)

		Limit of lending				Aug.				Bal. as of period end
TSMC			94,177,312				—				—
TSMC’s subsidiaries			32,598,992				—				—

3)

Endorsements and guarantees (in NT$ thousand)

		Limit of endorsements				Aug.				Bal. as of period end
TSMC			117,721,641				—				—
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)

														Others
						Forward				Swap				Buy put				Sell call
Margin Payment							—				—				—				—
Premium Income (Expense)							—				—				—				—
Outstanding Contracts		Notional Amount					3,109,195				30,615,395				—				—
		Mark to Market Profit/Loss					(43,467	)			(116,571	)			—				—
Expired Contracts		Notional Amount					14,361,163				147,935,178				1,310,840				1,310,840
		Realized Profit/Loss					(21,379	)			(753,521	)			—				—

		TSMC’s subsidiaries
		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					1,217				—				—				—
		Mark to Market Profit/Loss					10				—				—				—
Expired Contracts		Notional Amount					237,999				—				—				—
		Realized Profit/Loss					1,598				—				—				—

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.