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Mitsui to Acquire Additional Interest in Tangguh LNG Project, Indonesia

Oct. 1, 2007


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Mitsui & Co., Ltd. ("Mitsui") announced today that it has decided to acquire additional shares in two companies owned by Kanematsu Corporation, KG Berau Petroleum Ltd. ("KGB") and KG Wiriagar Petroleum Ltd. ("KGW"), together with INPEX Holdings Inc., Mitsubishi Corporation and Nippon Oil Corporation.

1. Reason for Share Acquisition
KGB and KGW have a total 10% interest in the Tangguh LNG Project currently under development in the Republic of Indonesia.
Overseas Petroleum Corporation ("OPC"), a subsidiary of Mitsui in which Mitsui holds a 96.6% stake, already has a 1.0% indirect interest in the Tangguh LNG Project via both of these companies. With the acquisition of additional shares, OPC's indirect interest in the Project will increase by 1.3% to 2.3%. Mitsui aims to further expand its LNG business.

2. Share Acquisition Details
OPC will acquire 6,997 shares in KGB (9.9% of issued shares) and 10,200 shares in KGW (32.1% of issued shares) for 5 billion yen, excluding development costs already incurred.

3. Schedule
October 1, 2007: Signing of share transfer agreement
October 22, 2007: Scheduled date for share transfer

Notice:
This press release includes forward-looking statements about Mitsui. These forward-looking statements are based on the current assumptions and beliefs of Mitsui in light of the information currently available to it, and involve known and unknown risks, uncertainties and other factors. Such risks, uncertainties and other factors may cause Mitsui's actual results, performance, achievements or financial position to be materially different from any future results, performance, achievements or financial position expressed or implied by these forward-looking statements. The risks, uncertainties and other factors referred to above include, but are not limited to, those contained in Mitsui's latest annual report on Form 20-F, which has been filed with the U.S. Securities and Exchange Commission. This press release is published in order to publicly announce specific facts stated above, and does not constitute a solicitation of investments or any similar act inside or outside of Japan, regarding the shares, bonds or other securities issued by us.

Information

For inquiries on this matter, please contact

Mitsui & Co., Ltd.
Investor Relations Division
Telephone: +81-3-3285-7910
Facsimile: +81-3-3285-9819
infoTKADZ@mitsui.com
Mitsui & Co., Ltd.
Corporate Communications Division
Telephone: +81-3-3285-7596
Facsimile: +81-3-3285-9819