GNF26 Speakers

Mary Katri is Head of Europe Operations at Maersk Energy Markets and an experienced senior operator across cargo, shipping and trading operations.

Her background spans complex operational delivery, demurrage and renewable-feedstock supply, giving her a practical view of how commercial commitments, fuel availability and vessel execution meet in day-to-day operations. At GNF26, she will contribute in a personal capacity, drawing on her general industry experience.

Capt. Nicolo de Caro, joined ABC Maritime in December 2020 and currently leads the Tanker Operations Department while serving as Director of ABC Tankers since June 2026. With more than 25 years of experience in tanker shipping, he has managed tanker fleets worldwide and developed extensive expertise in both Clean and Dirty Products tankers.

Prior to joining ABC Maritime, Nicolo held Operations Manager positions with leading tanker operators, including Scorpio and d’Amico, where he was responsible for the operational management of Handy, MR, LR1, and Aframax tanker fleets trading across major international markets, particularly the US Atlantic Coast, UK Continent, and Mediterranean regions.

His career combines seagoing command experience with strong operational and commercial leadership, ensuring safe, compliant, and efficient vessel operations while driving the continued growth and performance of ABC Maritime’s tanker activities.

Risto-Juhani Kariranta is CEO of AHTI Climate, a Finnish company providing innovative tools and services for maritime emission compliance and cost optimization under FuelEU Maritime, EU ETS, and CII regulations. A Naval Architect and Master Mariner, he brings over two decades of maritime expertise spanning vessel performance, fleet optimization, and decarbonization strategy.

Before founding AHTI Climate, Risto held senior roles at Neste, NAPA, and FORCE Technology, driving digitalization and emission-reduction projects across global fleets. He holds an M.Sc. in Naval Architecture from Aalto University and a Master Mariner degree from Kymenlaakso University of Applied Sciences. Passionate about sustainable shipping, he combines engineering precision with a pragmatic drive to make decarbonization commercially viable.

Dionysis Diamantopoulos, FICS, is Head of New Fuels at Glander International Bunkering. Appointed to the role in February 2026, he leads the continued development of the company’s new-fuels offering, supporting clients across biofuels and biofuel blends, LNG and bio-LNG, pooling and insetting solutions.

His expertise spans alternative-fuel procurement, regulatory compliance, international bunker trading, strategic account management and green-transition solutions. His previous industry experience includes serving as Head of Alternative Fuels at Baseblue, following earlier roles in bunker trading and key account analysis.

Dionysis has also shared his industry expertise as a master’s-level lecturer in Strategic Maritime Management. His work focuses on helping shipping companies navigate the commercial, regulatory and operational implications of decarbonisation while integrating fuel, emissions, pricing and risk considerations across the well-to-wake lifecycle.

Kenneth Dam is Executive Director and Global Head of Bunkering at TFG Marine, a global marine fuel supply and procurement company.

He joinedExecutive Director and Global Head of Bunkering, TFG Marine

Trafigura’s fuel oil team in 2017 and became Co-Head of its bunkering team in 2019. In 2020, he was appointed Global Head of Bunkering at TFG Marine. Earlier in his career, Kenneth helped develop Monjasa’s bunkering operations in West Africa.

His experience across fuel trading and physical supply gives him a practical view of the commercial and operational decisions behind marine fuel procurement.

Olivier Josse is CEO of Seascale Energy, the marine fuel procurement joint venture established by Cargill and Hafnia.

During 36 years at Cargill, Olivier has held leadership roles across trading and chartering. He joined its Ocean Transportation business in 2006, led marine fuel procurement activities and helped develop a biofuels programme connecting Singapore and Europe. In 2025, he helped establish Seascale Energy and became one of its two CEOs.

Olivier brings experience of the decisions facing charterers and fuel buyers as they balance reliable supply, commercial requirements and the transition to lower-emission fuels.

Dr. Catherine A. is a seasoned energy professional with over 20 years of international experience across trading, risk management, and origination in both physical and financial energy markets. At Global Risk Management (GRM), she leads strategic accounts and biomass origination, leveraging her deep background in bioenergy, oil, and gas trading. Before joining GRM, she held key roles at Ørsted, Santander GBM, and BP, where she specialized in global commodities strategy and market development.

Dr. Catherine holds a PhD in Chemistry from the National Research Centre of Sciences in Lyon, France. A trilingual communicator, she brings a global and human perspective to the evolving energy transition landscape.

Arne Lohmann Rasmussen covers global energy markets at GRM, including oil, bunker fuels, biofuels, natural gas, LNG and emissions. Before joining the company in 2023, he spent more than two decades in research at Danske Bank, advising corporate and institutional clients on financial markets and macroeconomic developments.

Arne holds a master’s degree in economics from the University of Southern Denmark and the CFA UK Certificate in ESG Investing. He is regularly quoted in international media on energy markets and economic trends.

Alain Savary is the Founder and CEO of CARBONEX and PNZ2050, advisory firms supporting the maritime industry through its decarbonisation journey. With more than two decades of leadership experience in shipping, including senior roles at Massoel Shipping and V.Group, he works at the intersection of operations, strategy and sustainability.

Through CARBONEX and PNZ2050, he helps industry stakeholders navigate carbon markets, regulatory change and practical pathways towards carbon neutrality. At GNF26, he will moderate the discussion, connecting commercial, operational and regulatory perspectives.

Andrew Glass is the Founder and Chief Executive Officer of Avatar Commodities, a consultancy specialising in commodity strategy, risk management, trading, supply chains, and advisory services.

He brings more than 30 years of international commodities experience gained across four continents through roles with physical producers, trading organisations, and financial institutions. His career spans agriculture, energy, metals and mined resources, logistics, derivatives, and carbon markets. He has led and developed trading businesses and capabilities, including serving as Head of Ferrous Trading at Anglo American.

Since founding Avatar Commodities in 2017, Andrew has advised boards and senior executives on commodity exposure, risk diagnostics, market strategy, and sustainable value creation. A regular industry speaker, moderator, consultant, and media commentator, he is recognised for connecting commercial strategy with practical risk management, innovation, transparency, and collaboration.

Alberto Pérez Espinosa is an experienced leader in the maritime and industrial sectors, with nearly 15 years of expertise in sales, business development, product innovation, and digital transformation. He is currently Head of Maritime Commercial Markets at Lloyd’s Register, where he drives strategy and client engagement across global shipping. Previously, he held senior roles at Inmarsat and ABB, leading international teams in energy efficiency, digital services, and marine solutions.

Alongside his corporate work, Alberto shares his knowledge as a Guest Lecturer at the University of Geneva. He holds an MBA from IE Business School, a Diploma in Commodity Trading from the University of Geneva, and a Master’s in Electrical Engineering from Universidad Politécnica de Madrid.