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 concerning Disparity between Forecast and Actual Figures
for Second Quarter of Fiscal Year 2009 (February 1, 2009–July 31, 2009)

The board of directors of SUMCO Corporation approved the consolidated financial statements for the second quarter of fiscal year 2009 (February 1, 2009–July 31, 2009) in its meeting of today. The disparity between the consolidated business results forecast for the second quarter of fiscal year 2009 announced on May 29, 2009 and the actual figures approved today are as shown below. 1. Disparity between forecast and actual figures for second quarter of FY2009 (February 1, 2009–July 31, 2009)

3. Reasons for disparity Consolidated net sales for the second quarter of fiscal year 2009 exceeded the forecast primarily because demand for and shipments of silicon wafers for semiconductors

Net sales

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

(million yen)
Net income
per share
for quarter

(yen)
Previous forecast (A)
(announced May 29, 2009)
85,000
(58,000)
(70,000)
(50,000) (193.99)
Results for second quarter (B)
95,777
(48,832)
(61,201)
(52,921) (205.32)
Amount of change (B – A)
10,777
9,168
8,799
(2,921)
－

Rate of change (%)
12.7%
15.8%
12.6%
(5.8%)
－

(Reference)
Results for previous
interim period (February 1,
2008–July 31, 2008)
227,161
47,284
46,591
25,610 102.36

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.
exceeded the levels projected in May 2009. Operating profit and ordinary profit exceeded the forecast due to increased net sales and cost reduction. Net income came in below the forecast due mainly to the following developments. First, following the decision to close the small-diameter wafer plant of a U.S. subsidiary, the projected liquidation value of fixed assets was registered as an estimated extraordinary loss. Second, the deferred tax assets of certain subsidiaries were drawn down.