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His Excellency Charles Hay MVO 

British High Commissioner to Malaysia

His Excellency Charles Hay MVO started as the British High Commissioner to Malaysia in March 2019 in succession to Vicki Treadell CMG MVO.

Prior to Malaysia, Mr Hay was the British Ambassador to South Korea from 2015 to 2018. During his time in the British diplomatic services, he has been posted to the Czech Republic, Spain, and the UK Representation to the EU in Brussels. Charles was also the Director of Consular Services in London, responsible for assisting British nationals and in crisis management worldwide. Before joining the Foreign and Commonwealth Office in 1993, he was a Captain in the British Army.

Mr Hay is married to Pascale Sutherland, and they have two daughters. He has a Master in Business Administration as well as a BA in Philosophy and Politics. His hobbies include golf, diving and archery.

Charlotte Wolff-Bye

Vice President, Chief Sustainability Officer


In June 2021, Charlotte Wolff-Bye took up the role of Chief Sustainability Officer at Malaysia's national oil company Petronas, where she is charged with turning the company's Net Zero Carbon Emissions by 2050 aspiration into strategy and workable implementation plans delivering both decarbonisation and social progress.

Previously Charlotte worked for the Norwegian energy company Equinor in the role of Vice President Sustainability. At Equinor she delivered the company's first sustainability strategy that laid the foundation for the company's low carbon focus. She was also the company's representative on the Oil and Gas Climate Initiative (OGCI) and the World Bank's Global Gas Flaring Reduction Initiative (GGFR). From 2007-14, Charlotte held the position of General Manager Corporate Responsibility for the global steel and mining company ArcelorMittal.

Charlotte also worked for a decade in the telecommunications sector, most notably in Telefonica and O2. Previous experiences include working in multilateral lending, music marketing and diplomatic affairs.

Charlotte is a longstanding and active champion of corporate sustainability practices, and a frequent top-level speaker, commentator, and writer on sustainability, ESG, and energy-related matters.

She has proactively been shaping the agenda through the launch of several collaborative partnerships including the Climate and Clean Air Coalition Oil and Gas Methane Partnership, the Nordic CEOs for a Sustainable Future, and the Global E-sustainability Initiative.

She is the recipient of a leadership award by Devex for her contribution to international development. Currently, she serves on the board of trustees of the UN Environment Programme World Conservation Monitoring Centre, Cambridge, United Kingdom.

Charlotte grew up in Finland and has both studied and worked internationally. Prior to relocating to Malaysia, Charlotte resided in the UK.

Mohammad Nazri Mizayauddin

Chief Strategic Officer

Sustainable Energy Development Authority (SEDA) 

Mr Mohammad Nazri bin Mizayauddin has over 21 years of experience in the corporate sector and government-linked companies (GLCs). His vast experience spanned multiple industries such as Research and development (R&D), Central Banking & Financial Services and also in the Oil & Gas sector. Prior to his appointment, he was the Vice President of Bank Rakyat and Kumpulan Wang Persaraan Diperbadankan (KWAP). He also held the position of the Head of Sustainable Development Reporting & Communications and Investment Committee Member at PETRONAS. Mr Mohammad Nazri has also served at PETRONAS Leadership Centre (PLC) as a Finance & Treasury internal trainer. Prior to that, he served in Labuan Reinsurance Ltd, Bank Negara Malaysia and Maybank. He spent his early career at SONY as an R&D Engineer covering strategy and business development.

He obtained his Bachelor of Science in Electrical Engineering from the University of Hartford, United States. Mr Mohammad Nazri also holds an MBA from Management & Science University (MSU) and is an associate member of the Asian Institute of Chartered Bankers (AICB) through the Financial Market Association of Malaysia.

Ir. James Ung Sing Kwong

Group Chief Operating Officer

Sarawak Energy Berhad

Ir. James Ung Sing Kwong is the Group Chief Operating Officer of Sarawak Energy, a position he was appointed to in January 2022. 

In this role, Ir. Ung is responsible for the vision and strategy of the group's operating units and oversees the execution of critical and transformative operational strategic initiatives while maintaining engineering and operational excellence.​ He is a member of the Group Executive Committee and also chairs the Group Operations Management Committee. 

A mechanical engineer by profession, Ir. Ung has worked with Sarawak Energy's group of companies since 1990, growing his expertise in technical and leadership roles in power generation and power plant project management. Over the past thirty years, his extensive experience included roles as a technical engineer and power station management for coal, gas and hydro plants in the power generation business and new power plant development. 

Prior to this appointment, Ir. Ung was the Chief Executive Officer of SEB Power Sdn Bhd, a wholly-owned subsidiary of Sarawak Energy, responsible for all the power generation business (Hydro, Coal, Gas & Diesel), with a combined installed Generation Capacity of more than 5,500 MW. He was also instrumental in driving Operation Excellence and Digitalization for Sarawak's generation assets.

Ir. Ung holds a bachelor's degree in mechanical engineering from the University of South Alabama in the United States of America. He is a Fellow of the International Hydropower Association (IHA) and a registered Professional Engineer (PE) by the Board of Engineer Malaysia.

Dr Rezal Khairi Ahmad

Chief Executive Officer

NanoMalaysia Bhd

Dr Rezal Khairi Ahmad was appointed as the Chief Executive Officer in January 2013 under secondment from Khazanah Nasional started in June 2012. He is also a Board Member of NanoMalaysia and Nano Commerce Sdn Bhd, Founding Chairman of NanoVerify Sdn Bhd and Founding Director of Nanovation Ventures Sdn Bhd. Currently, he serves as Chairman of Advanced Materials Investment Advisory Panel Working Group under Malaysian Investment Development Authority, Treasurer for Asia Nano Forum and Chairman of Commercialization Working Group under Asia Nano Forum. In September 2017, he was appointed as International Advisor to China Graphene Industry Alliance (CGIA) linking Malaysia's National Graphene Action Plan 2020 and mutual economic benefits. Formerly attached to the College of Engineering, Universiti Tenaga Nasional as an academician from 1998 to 2007, he was also an engineer at Tenaga Nasional ICT in 2003. In 2000, he co-founded Malaysia-Events Sdn Bhd, a start-up for an e-commerce platform.

He holds a PhD in Nanotechnology, Electronic/Electrical Engineering from London Centre for Nanotechnology, University College London as the first Khazanah PhD Scholar from 2007 to 2010 with publications in high impact journals. In 2014, he was instrumental in crafting Malaysia's National Graphene Action Plan 2020 and co-authored chapters pertaining to innovation and commercialization under the 11th Malaysia Plan. His current endeavours include the Internet of Nano-Things and Blockchain applications for high technology management.


Brian Pye

Chairman, BMCC Energy Committee &

Director, Energy Transition

THREE60 Energy Group