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 2006

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 2006 Sales Report

Hsinchu, Taiwan, R.O.C. — March 10, 2006 — TSMC (TAIEX: 2330, NYSE: TSM) today announced that net sales for February 2006 totaled NT$24,009 million, a decrease of 8.3 percent over January 2006. Revenues for January through February 2006 were NT$50,187 million.

Ms. Lora Ho, TSMC vice president and chief financial officer, noted that, “The sequential decline is mainly due to three fewer working days in February. On a year-over-year basis, net sales for February 2006 increased 39.6 percent.”

Sales Report:

(Unit: NT$ million)

	Net Sales				2006*					2005				Increase (Decrease) %
	February				24,009					17,200					39.6
	January through February				50,187					38,043					31.9

* Year 2006 figures have not been audited.

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

TSMC Acting Spokesperson:
Mr. J.H. Tzeng
PR Department Manager, TSMC
Tel: 886-3-666-5028
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: 886-3-666-5038
Mobile: 886-911-258751
Fax: 886-3-567-0121
E-Mail: cychung@tsmc.com

Taiwan Semiconductor Manufacturing Company Limited
March 10, 2006

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 2006 .

1) Sales volume (in NT$ thousand)

	Period			Items				2006					2005
	Feb.			Net sales				24,008,853					17,200,048
	Jan.-Feb.			Net sales				50,186,460					38,042,827

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

				Limit of lending					Feb.			Bal. as of period end
	TSMC				82,222,226				-				-
	TSMC’s subsidiaries				32,064,501				16,450*				1,135,925

*The deviation was due to the fluctuation in currency exchange rate.

3) Endorsements and guarantees (in NT$ thousand)

	4			Limit of endorsements					Feb.					Bal. as of period end
	TSMC				102,777,783					(1,251,200	)				1,947,300
	TSMC’s subsidiaries				N/A					-					-
	TSMC endorses for subsidiaries									(1,251,200	)				1,947,300
	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)
Hedging purpose (for assets / liabilities denominated in foreign currencies)

							Forward					Swap					Others
	Margin Payment							-					-				-
	Premium Income (Expense)							-					-
			Notional Amount					624,202					73,562,888
	Outstanding			Mark to Market
	Contracts			Profit/Loss				13,248					(518,377	)			-
	Expired			Notional Amount				2,977,710					65,340,278				-
	Contracts			Realized Profit/Loss				81,669					1,965,678				-

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.