SMIC Announces Unaudited Interim Results for the Six Months Ended June 30, 2005 and Updated Guidance for 2005 Third Quarter

SHANGHAI, China -- Sept. 22, 2005 -- The Directors of Semiconductor Manufacturing International Corporation (the "Company" or "SMIC") are pleased to announce the unaudited consolidated results of the Company and its subsidiaries (the "Group") for the six months ended 30 June, 2005 and updated guidance for 2005 third quarter.

Highlights

• The Company today announced its unaudited consolidated results of operations for the six months ended June 30, 2005. Sales increased by 29.5% from US$407.9 million for the six months ended June 30, 2004 to US$528.3 million for the six months ended June 30, 2005.
• Wafer shipments increased to 615,411 8-inch wafers equivalent for the six months ended June 30, 2005 from 375,859 8-inch wafers equivalent for the six months ended June 30, 2004.
• Set out below is a copy of the full text of the press release made by the Company on September 23, 2005 of its unaudited interim results for the six months ended June 30, 2005 and updated guidance for the 2005 third quarter. The original 2005 third quarter outlook and guidance was included in SMIC's announcement of results for the three months ended June 30, 2005 on July 29, 2005, available at http://www.smics.com
• This announcement is made pursuant to the disclosure obligations under Rule 13.09(1) of The Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited as the Company made the press release reproduced below.

For the full SMIC unaudited interim results for the six months ended June 30, 2005 and updated guidance for 2005 third quarter, please click on the following link:

http://www.smics.com/website/enVersion/fileCenter/2005_Interim_En.pdf

About SMIC

SMIC (NYSE: SMI, SEHK: 0981.HK) is one of the leading semiconductor foundries in the world, providing integrated circuit (IC) manufacturing at 0.35-micron to 0.11-micron and finer line technologies to customers worldwide. Established in 2000, SMIC has four 8-inch wafer fabrication facilities in volume production in Shanghai and Tianjin. In the first quarter of 2005, SMIC commenced commercial production at its 12-inch wafer fabrication facility in Beijing. SMIC also maintains customer service and marketing offices in the U.S., Europe, and Japan, and a representative office in Hong Kong. As part of its dedication towards providing high-quality services, SMIC strives to comply with or exceed international standards and has achieved ISO9001, ISO/TS16949, OHSAS18001, TL9000 and ISO14001 certifications. For additional information, please visit http://www.smics.com.

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