TRANSLATION
NOTICE: The following report is an English translation of the Japanese-language original.
This press release is made pursuant to the requirements under the listing rules of, and reported to, the
Tokyo Stock Exchange.
September 4, 2009

Company name: SUMCO Corporation
Representative: Yoichi Taguchi, President
(Code: 3436, TSE First Section)
Contact: Hiroshi Shibuya, General Manager
Public Relations & IR Department
(Tel: +81-3-5444-3915)

Announcement of Revision of Business Results Forecast for Fiscal Year 2009

Please be informed that SUMCO Corporation has disclosed its consolidated business results forecast for fiscal year 2009 (ending January 31, 2010) as shown below. This forecast remained indeterminate at the time of the disclosure of the Company’s financial statements on March 6, 2009. 1. Revision of consolidated business results forecast for FY2009 (February 1, 2009–January 31, 2010)

2. Reasons for revision of forecast Consolidated business results forecast for fiscal year 2009 previously remained indeterminate due to difficulties in forecasting business results for the second half. SUMCO Corporation has now determined its consolidated business results forecast for fiscal year 2009 based on recent business results and trends in demand as shown above.
Net
sales

(million yen)
Operating
profit
(million yen)
Ordinary
profit
(million yen)
Net income

(million yen)
Net income
per share

(yen)
Previous forecast (A)
－

－

－

－

－

Revised forecast (B)
220,000
(80,000)
(110,000)
(100,000) (387.97)
Amount of change
(B – A)
－

－

－

－

－

Rate of change (%)
－

－

－

－

－

(Reference)
Results for FY2008 (ended January 31,
2009)
391,928
45,069
39,371
18,886 74.36