Mitsui & Co., Ltd. (“Mitsui,” head office: Tokyo, President and CEO: Kenichi Hori) announced on January 28, 2026, that it had decided to divest all of its onshore oil and gas interests owned in Block 3&4 and Block 9 in the Sultanate of Oman through Mitsui E&P Middle East B.V. (“MEPME”), a wholly owned subsidiary of Mitsui, to Kistos Energy Middle East Limited, and that the sale was expected to be completed within the fiscal year ending March 2026, subject to the satisfaction of certain conditions precedent, such as obtaining the necessary approval by relevant authorities.

However, due to the time required to obtain the necessary approvals from the relevant authorities, Mitsui now expects that the conditions precedent will not be satisfied within the fiscal year ending March 2026. Mitsui will continue discussions with the relevant parties to fulfill the conditions precedent and aims to complete the sale as early as possible. The financial impact of this matter will be finalized after a detailed review of the amount and timing of its recording.