TRANSLATION
NOTICE:
The following report is an English translation of Japanese-language original
This press release is made pursuant to the requirements under the listing rules of, and reported to the Tokyo Stock Exchange.
May 29, 2009

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

Announcement of Revision of Business Results Forecast

In light of recent developments in its business results, SUMCO Corporation has revised downward its consolidated business results forecast for the first half of fiscal year 2009 (February 1, 2009–January 31, 2010) as shown below. The previous forecast was announced on March 6, 2009 concurrent to the disclosure of the Company’s financial statements. 1.

Revision of consolidated business results forecast for the first half (February 1,
2009–July 31, 2009) of FY2009
2.

Reasons for revision of forecast
The above downward revision of the business results forecast reflects the following developments. First, the Company began amortizing its operable equipment used in the manufacture of 300 mm wafers in the current fiscal year, which is expected to increase operating losses. Second, with regard to net income, it was decided not to register deferred income tax assets for certain subsidiaries.

Net
sales

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

(million yen)
Net income
per share

(yen)
Previous forecast (A)
85,000
(58,000)
(60,000)
(37,000) (143.55)
Revised forecast (B)
85,000
(58,000)
(70,000)
(50,000) (193.99)
Amount of change
(B – A)

0

0
(10,000)
(13,000)
－

Rate of change (%)
－

－

(16.7%) (35.1%) －
(Reference)
Results for first half of FY2008
227,161
47,284
46,591
25,610 102.36