NEWS

The allocation of organizational responsibilities for executive officers (Effective July 1st, 2023)

May 17, 2023 Company Information

Mitsui Oil Exploration Co., Ltd. Announced the allocation of organizational responsibilities for executive officers
effective July 1st, 2023.

Name

Categories of
Executive Officers

Title and Assignment

Hidenori Harada

President

CEO (Chief Executive Officer)

CISO (Chief Information Security Officer)

In charge of Vietnam Business Division, Geothermal Business Division, Corporate Governance,
HSE, Human Resources, Corporate Planning, Administration and Information System

General Manager of Corporate Strategy and Planning Division

General Manager of Vietnam Business Division

Tomoaki Sato

Managing Executive Officer

In charge of Hanoi Office

General Manager of Hanoi Office

Masanori Nakamizo

Executive Officer

CFO (Chief Financial Officer)

CCO (Chief Compliance Officer)

In charge of Finance and Accounting

Kosuke Onishi

Executive Officer

In charge of Business Development Division, Bangkok Office and Jakarta Office

Osamu Kobayashi

Executive Officer

In charge of Technical Division

General Manager of Technical Division