Board of Directors

Wisnu Santoso is a graduate of the Bandung Institute of Technology, holds a dual master's degree from the Colorado School of Mines in the United States and IFP Paris in France, and INSEAD executive management program in Abu Dhabi, United Arab Emirates.

He began his career at Bank Mandiri before joining the Pertamina Group in 2009 as Vice President of Corporate Business and Initiatives Management at PT Pertamina (Persero). In 2020, he was appointed Director of Business Planning at Pertamina International Shipping, successfully transforming the company into a regional leader in maritime logistics.

Since 2024, he has held the position of Senior Vice President of Business Development at Pertamina, where he notably leads numerous initiatives in the field of renewable energy.

Marc Blaizot has expertise in the energy sector, particularly in geology. He graduated from the National School of Geology in Nancy.

He started his career as a geologist at Elf in 1979 where he held various positions and focused on basin evaluation, prospect generation and discovery appraisal in Europe (Italy, Norway, UK). Appointed Exploration Manager in Angola in 1992, he led the team of geologists and geophysicists who discovered the giant Girassol field in the deep offshore. From 1996 to 2001, he led the geoscience studies for the Middle East (Syria, Iraq, Qatar) and the Far East at the Centre Scientifique et Technique in Pau. He was in charge of the Exploration Arbitration Division from 2001 to 2005 and the New Projects Division from 2005 to 2008, specialising in the evaluation and management of the exploration portfolio and the selection of new permits worldwide. From 2009 to 2015, he was Senior Vice President of Global Exploration at Total, leading a network of more than 2,000 geoscience experts in 40 countries. He was also a member of the boards of directors of Total Angola, Total Nigeria and Total Netherlands. Since 2017, he has been carrying out assignments for the World Bank. From 2018 to 2024, he was director of the Avenia association. From 2018 to 2024, he was scientific advisor to start-up 45-8
Energy, which specialises in hydrogen and helium exploration. From 2020 to 2024, he was involved in the Pycasso project, a Franco-Spanish project aimed at decarbonising local industry, for which he chaired the steering committee until 2023. Marc Blaizot is also a consultant to the French High Commissioner for Planning on the role of the subsoil in ecological and energy transitions.

He is a member of the European Association of Geoscientists & Engineers (EAGE) and of the Société Géologique de France SGF, of which he has been treasurer since September 2024.

Caroline Catoire, a French national, has financial expertise, particularly in the energy and banking sectors.

She is a graduate of the Ecole Polytechnique. She held various positions within the Total Group from 1980 to 1998: in the Economic Research Department, in the Oil Trading Department and then in the Finance Department as Director of Management Control, then Director of Corporate Finance. She then joined Societe Generale as Director of Management Control for the investment bank (1999-2002). She has gained experience in the financial field by working as a financial director in various companies: Sita France, then the Saur group and the Metalor group.

Since December 2015, she has been working as a consultant in the financial sector.

Nathalie Delapalme has held senior accounting and financial positions in the French government. Her extensive experience in Africa, a subject on which she has worked for 40 years and continues to follow closely, is an asset for the Board.

Nathalie Delapalme served as an adviser to the French Senate's Committee on Finance, Budgetary Control and National Accounts from 1984 to 1985 and again from 1997 to 2002. She was also deputy director to the Minister for Cooperation
between 1995 and 1997 and an advisor to the Minister for Foreign Affairs from 2002 to 2007, specialising in African affairs. After serving as France's Inspector General of Finance, she joined the Mo Ibrahim Foundation as Executive Director in June 2010. As head of the foundation, Ms Delapalme provides leadership and oversees the foundation's initiatives and programmes, which focus on governance issues and the major challenges facing the African continent, particularly in the face of climate change. On this subject, the foundation has been closely involved in the discussions and debates taking place at successive COPs and at the first Africa Climate Summit in September 2023. advocating for political decisions and actions in favour of the climate that take account of the development challenges facing the African continent (energy transition, adaptation and resilience, access to energy for all, development of green assets and diversification of the economy to benefit local populations).

Carole Delorme d'Armaillé brings to the Board of Directors extensive experience in the banking and financial sector. She has a wide range of experience in the financial sector and the world of professional associations.

After a dual career as treasurer for industrial packaging groups (Pechiney then Crown) and in financial instruments on the trading floor at SBT-BATIF then JP Morgan Paris (from 1984 to 2000), she moved on to leadership roles in key financial services organisations. She has notably held the positions of Delegate General within the French Association of Corporate Treasurers (AFTE) and Director of Communications for 10 years within the Paris EUROPLACE association, an organisation in charge of promoting the Paris financial centre. From 2016 to 2023, she served as Managing Director of the Office de Coordination Bancaire et Financiere (OCBF), an association of 125 banking institutions.

Since November 2023, Carole Delorme d'Armaillé has worked as a consultant specialising in the financial sector and has also been a company director.

Bagus Rahadiansyah has over 25 years' experience in sales and finance.

Bagus Rahadiansyah obtained his undergraduate degree from the University of Indonesia in 2001. He began his career as Sales Director at Pesona Kharisma Futures in 1999. He went on to become Chief Trader/Futures Manager at Danareksa Futures. From 2003 to 2005, Mr Rahardiansyah furthered his expertise at Danareksa (Persero), as a currency spot trader and foreign exchange derivatives trader. From 2005 to 2006, he was Head of Structured Products Sales at Bank Internasional Indonesia. In 2006, he joined the Institutional Sales division of HSBC Ltd's Jakarta branch. His extensive experience led him to join Bank ANZ Indonesia from 2008 to 2015, where he excelled as Head of Investor Sales in Indonesia. From 2015 to 2019, he held the position of Head of Investor Sales in Indonesia at Citibank NA for the Jakarta branch. He then returned to Bank ANZ Indonesia as Head of Investor Sales for Indonesia. He was subsequently appointed Senior Vice-President of Corporate Finance at Pertamina (Persero). In recognition of his expertise and contribution, he was appointed Commissioner of Asuransi Tugu Pratama Indonesia.

Eri Budi Shidartha has over 20 years of experience in the international oil and gas industry.

He holds a Master of Business Administration degree (MBA) with a specialization in Finance from the University of San Francisco and a Bachelor of Science degree in Mechanical Engineering from the State University of New York in the United States. Additionally, he has completed the Executive Leadership Program at Stanford University in California.

From 2003 to 2021, he held various management and leadership positions within the Chevron Group across Indonesia, the Philippines, and the United States. In August 2021, he joined the Pertamina Group, where he held management and strategic planning responsibilities, including key initiatives such as enhanced oil recovery (EOR) and unconventional resources at P.T. Pertamina Hulu Rokan. He later assumed responsibilities at PT Pertamina International EP. Since June 2025, Eri Budi Shidartha has served as Vice President of Business Supports at PT Pertamina International EP.

Eri Budi Shidartha also brings seven years of experience in banking and financial consulting at Panin Bank, Arthur Andersen, and Ernst & Young Consulting, where he led assignments in mergers and acquisitions, IPOs and debt restructurings.

Syamsu Yudha has over 20 years of experience in asset management, field development, and upstream oil and gas operations within the Pertamina Group.

He holds a Magister Geology from the Institute Technology Bandung (Indonesia) and a Bachelor of Geological Engineering from the University of Gadjah Mada, in Indonesia.

He joined the Pertamina Group in 1999, where he successively held senior positions in geology before being appointed Development Manager of Pertamina International EP in 2017 and, in 2019, Country Manager of Zone 16 (West Qurna-1 Project), one of the world's largest oil fields, in partnership with ExxonMobil Iraq, PetroChina, and Itochu.

Since May 2023, Syamsu Yudha has been Vice President Production and Operation of Pertamina Internasional EP.