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 April 2007 Sales Report

Hsinchu, Taiwan, R.O.C. — May 10, 2007 — TSMC (TAIEX: 2330, NYSE: TSM) today announced its net sales for April 2007: on an unconsolidated basis, sales were NT$22,513 million, an increase of 2.7 percent over March 2007 and a decrease of 17.1 percent from April 2006. Revenues for January through April 2007 totaled NT$85,859 million, a decrease of 17.8 percent compared to the same period in 2006.

On a consolidated basis, net sales for April 2007 were NT$ 23,094 million, an increase of 2.4 percent over March 2007 and a decrease of 15.7 percent from April 2006.; revenues for January through April 2007 totaled NT$87,991 million, a decrease of 16.4 percent compared to the same period in 2006.

TSMC Sales Report (Unconsolidated):

(Unit: NT$ million)

Net Sales		2007*				2006				Increase (Decrease) %
April			22,513				27,162				(17.1)
January through April			85,859				104,456				(17.8)

TSMC Sales Report (Consolidated):

(Unit: NT$ million)

Net Sales		2007*				2006				Increase (Decrease) %
April			23,094				27,388				(15.7)
January through April			87,991				105,238				(16.4)

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
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

May 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 April 2007.

1)

Sales volume (in NT$ thousand)

Period		Items				2007				2006
Apr		Net sales					22,512,708				27,162,375
Jan — Apr		Net sales					85,859,297				104,455,720

2)

Funds lent to other parties (in NT$ thousand)

		Limit of lending				Apr				Bal. as of period end
TSMC			105,725,124				—				—
TSMC’s subsidiaries			32,875,623				—				—

3)

Endorsements and guarantees (in NT$ thousand)

		Limit of endorsements				Apr				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		Notional Amount			1,138,525				24,788,015				—				—
Contracts		Mark to Market
		Profit/Loss			1,889				(228,926	)			—				—
Expired		Notional Amount			8,240,634				69,097,900				1,310,840				1,310,840
Contracts		Realized Profit/Loss			(61,990	)			(618,743	)			—				—

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		Notional Amount			6,225				—				—				—
Contracts		Mark to Market
		Profit/Loss			(126	)			—				—				—
Expired		Notional Amount			64,696				—				—				—
Contracts		Realized Profit/Loss			(198	)			—				—				—

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.