Press Release

Dec 11, 2006	Announcement Regarding Determination of Issue Price and Selling Price,Etc [PDF:53KB/2Page]
Nov 29, 2006	Announcement Regarding Issuance and Sale of New Shares and Stock Split [PDF:98KB/7Page]
Nov 22, 2006	Brief Statement of Consolidated Financial Results for and at the End of the 3rd Quarter of FY2006 [PDF:180KB/9Page]
Oct 12, 2006	Announcement of Result of Tender Offer and Notice of Change in Subsidiary [PDF:57KB/6Page]
Oct 10, 2006	SUMCO to build new 300mm crystal growing facility [PDF:70KB/1Page]
Sep 12, 2006	Brief Statement of Consolidated Financial Results for the six months ended July 31,2006 of Fiscal Year 2006 [PDF:468KB/24Page]
Sep 12, 2006	Notice of Dissolution and Liquidation of Our Subsidiary [PDF:56KB/3Page]
Sep 12, 2006	Announcement of Revisions to Business Forecasts [PDF:89KB/3Page]
Sep 12, 2006	Announcement of Commencement of Tender Offer [PDF:136KB/13Page]
Jul 31, 2006	Announcement of Revisions to Dividend Forecast [PDF:65KB/1Page]
Jul 31, 2006	Announcement of Revisions to Business Forecasts [PDF:91KB/3Page]
Jul 28, 2006	Brief Statement of Consolidated Financial Results for and at the End of the 1st Quarter of FY2006 [PDF:118KB/6Page]
Jun 14, 2006	SUMCO released Basic Agreement with respect to Share Transfer. [PDF:35KB/4Page]
May 12, 2006	SUMCO Announced the Signing of New Plant Site Agreement with Saga Prefecture [PDF:69KB/1Page]
Mar 10, 2006	SUMCO Recieves Favorable Ruling Against MEMC ELECTRONIC MATERIALS, INC. In a Patent Lawsuit Involving Low Defect Silicon Wafers [PDF:57KB/2Page]
Mar 2, 2006	SUMCO Raises Dividend Projection [PDF:43KB/1Page]
Jan 30, 2006	Notification of Revisions to Business Forecasts [PDF:36KB/2Page]

In order to view PDF files, you must have the Adobe® Reader™ plug-in offered free of charge from Adobe Systems, Inc.