Dora Branyan, Director of Sustainability and External Relations, Marquis 
Dora Branyan is the Director of Sustainability and External Relations at Marquis Energy Global, where she leads the long-term development and sustainability strategy for a company that produces, trades, and distributes low-carbon bio-ethanol on a global scale.  With nearly 3-years at Marquis Energy Global, she plays a pivotal role in integrating the disciplines of agriculture, sustainability, and energy.

Prior to her current role, Dora took an 18-month career break to support her family’s relocation—twice—and to achieve a personal milestone by completing an Ironman.  This break followed a 13-year career in the petroleum industry, during which she executed upstream projects worldwide.  Notably, she was a key member of the team that converted a VLCC into the first FPSO for Guyana—a significant milestone for the country.  Her project portfolio also includes managing brownfield projects in West Africa and an offshore project in Indonesia, where she handled responsibilities from engineering and contractor selection to full project execution.  Her tenure at ExxonMobil provided her with a robust foundation in project management.

Before entering the petroleum sector, Dora served 5- years in the U.S. Navy.  During her time as an officer, she earned the Officer of the Deck (OOD) and Engineering Officer of the Watch (EOOW) qualifications while serving on two amphibious vessels and completing two deployments to the Arabian Gulf during Operations Iraqi Freedom and the Global War on Terror.  Her naval career included assignments in Japan and California.
Dora’s journey in energy began with a degree in Mechanical Engineering from the U.S. Naval Academy—a program where she was among a small percentage of women in the engineering department.  

Beyond her professional accomplishments, Dora is a devoted mother to two dynamic daughters, aged 10 and 9, and two delightfully unambitious dogs.  An avid runner who considers the activity her form of solace, she enjoys activities like hiking, tennis, and cycling with her family.

Jill Cooper, Senior Associate, King & Spalding LLP
Jill Cooper is a Senior Associate in King & Spalding’s Corporate practice based in Singapore and Abu Dhabi, where she leads complex international M&A transactions. Her clients include large corporates, sovereign wealth funds and private equity clients in all industries, but particularly in the energy and infrastructure spaces. Jill regularly advises on control acquisitions and divestitures, as well as joint ventures and minority investments and provides strategic advice on reorganisations, shareholder matters and risk management. She has been recognized as an IFLR1000 Rising Star in Singapore for Foreign M&A in both 2023 and 2024.

Prior to her current role, Jill gained valuable international experience at leading firms in Sydney and the United States. Her legal career is built on a broad educational foundation, having earned her JD from Washington and Lee University School of Law, followed by admissions to both the North Carolina Bar and the Supreme Court of NSW, Australia. Jill was valedictorian and intercollegiate volleyball team captain at Coastal Carolina University, where she earned her bachelor’s degree in political science and still holds a school record for career blocks.

A Canadian national who has lived and worked in six countries across four continents, Jill spends her weekends baking, training for half marathons (to balance out the baking) and exploring UAE’s endless urban landscape with her husband and young daughter.

Mayen Ekong, General Counsel, Gurin Energy
Mayen is General Counsel of Gurīn Energy, a renewable energy company headquartered in Singapore with a 7GW pipeline of solar, wind and energy storage projects at various stages of development.

As GC, Mayen leads the legal function, supporting Gurin’s renewable energy development initiatives. She brings over 17 years of diverse experience across the energy sector from maritime shipping to traditional power generation, giving her a comprehensive understanding of the energy value chain and its ongoing transformation.

In her current role, she oversees legal strategy and risk management for renewable energy projects across multiple jurisdictions, working closely with cross-functional teams to navigate complex regulatory frameworks and drive sustainable energy solutions.
Prior to joining the renewable energy sector, Mayen gained valuable experience in shipping and conventional power generation, giving her unique insights into the evolution of the energy industry. This diverse background has proven invaluable in understanding the challenges and opportunities in the renewable energy space, particularly as the sector continues to mature and innovate.

As a female leader in the energy sector, Mayen has also witnessed firsthand the industry's gradual transformation toward greater diversity and inclusion. Throughout her career, she has actively worked to mentor emerging professionals, particularly women entering the energy and legal fields, sharing insights from her experience navigating traditionally male-dominated sectors.

Mayen holds legal qualifications from the University of Hertfordshire and University of Law in England and is qualified to practice law in England and Wales. She has also held a board position with a renewable energy company and committee positions with professional associations including Women in Energy Asia, WISTA (Women in International and is a member of the SCCA.

Beyond her legal practice, Mayen is an avid chess player. When not contemplating her next move on the board, she can be found cycling through the park connectors at the weekend – both as a physical challenge and a practical demonstration of her commitment to low carbon transportation.

Joanne Eu, Global Commercial Marketing Manager for Finished Lubricants, ExxonMobil
Joined the company in 1993 in Singapore as an Advertising and Promotions executive handling the merchandising and promotions at the then, 43 service station mini-marts. Since then, she has had a range of local and regional assignments in Sales, Marketing and Planning. From 2008 until 2010, Jo-Anne was relocated to Shanghai to manage the China and Taiwan Industrial Lubricants business, and then to Bangkok as the South East Asia Cluster lubricant Sales Manager. Following her sales stints, she was relocated to ExxonMobil’s US headquarters to head the Global Marine & Aviation Marketing organization in 2011. This led to a string of marketing assignments in the past decade in Global marketing as well as the leadership of both Lubricants Marketing, as well as Fuels Marketing in Asia Pacific in 2014 and 2019 respectively. In 2021, she led the Global Aviation and Marine business unit within Finished Lubricants, prior to her current assignment as the Global Commercial Marketing Manager.

Sophea Seng, Managing Director, Clifford Capital
Sophea Seng is a Managing Director and Head of Energy & Utilities at Clifford Capital Group in Singapore.
Her team is responsible for client coverage, originating, structuring and executing all types of debt transactions in the Energy and Utilities sector for the platform.

Sophea over 17 years of experience in the energy sector. Prior to joining Clifford Capital, she led Societe Generale’s energy financing practice for South and Southeast Asia. She has worked across Australia, Hong Kong, and Singapore. Her extensive background in energy transition within the region is expected to support Clifford Capital’s growth, particularly as the firm expands its infrastructure credit platform.
Outside of work, she's a busy mom with three young kids. She enjoys the big family and chaos that comes with it. 

Sophea holds a Bachelor of Commerce degree from University of New South Wales, Australia. She is also a CFA charter holder.