Listed Stock Name:	Eisai Co., Ltd.
	President & CEO:	Haruo Naito
	Headquarters:	4-6-10 Koishikawa, Bunkyo-ku, Tokyo
	Securities Code:	4523
	Listed Locations:	First Sections of the Tokyo Stock Exchange & the Osaka Securities Exchange
	Inquiries:	Akira Fujiyoshi Vice President Corporate Communications Phone: +81-3-3817-5120

With respect to the transfer price between the U.S. and Japan, Advance Pricing Arrangement (APA) which Eisai group had applied to tax authorities in Japan and the U.S was agreed between them. In accordance with this agreement, Eisai Co., Ltd. (Headquarters: Tokyo, President & CEO: Haruo Naito) has revised the full-year non-consolidated business forecast for the fiscal year ending March 31, 2009, (April 1, 2008 to March 31, 2009) originally announced on January 30, 2009 in the “Quarterly Financial Reports for the Third Quarter of the Year Ending March 31, 2009” as below-mentioned.

Since this revision is based on intercompany transactions, we have not revised the full-year consolidated forecast for the fiscal year ending March 31 which was announced on January 30, 2009.

1. Revised the full-year non-consolidated business forecast for the fiscal year ending March 31, 2009 (April 1, 2008 to March 31, 2009)

	Net Sales	Operating Income	Ordinary Income	Net Income	Earnings per Share (¥)
Previous Forecast (A) (Announced on January 31, 2009)	401,000	67,500	57,500	36,000	126.26
Revised Forecast (B)	411,500	78,000	68,000	52,500	184.27
Changes in Amount (B-A)	10,500	10,500	10,500	16,500	-
Percentage of Change	2.6%	15.6%	18.3%	45.8%	-

(Reference) Business Results for the fiscal year ended March 31, 2008

389,200

73,106

71,033

45,982

161.63

2. Reasons for revision

• Based on the agreements of APA, our U.S. subsidiary Eisai Inc. pays 17 billion yen (US$ 179 million) as prior period adjustment to Eisai Co., Ltd. and we book the before-mentioned amount as Special Gain for the fiscal year ended March 31, 2009.
  
• As a result of reviewing royalty rate between Japan and the U.S. with consideration of this agreed contents, we anticipate net sales will increase by 10.5 billion yen (US$ 110 million)

* Please note that actual business result may change due to several factors since the above-mentioned forecasts were made based on information as of March 27, 2009.