Argus Clean Ammonia Europe Conference

Duna Uribe

New Energies Manager, Port of Rotterdam

Duna Uribe manages the new energies portfolio at the Port of Rotterdam, enabling hydrogen and its derivatives to be handled at the port. Duna leads the developments of import storage, hydrogen conversion, pipelines, bunkering and distribution. Previously Duna had a leading role in creating the partnership with Pecém Port Complex, a Joint Venture from the Port of Rotterdam situated in Brazil where she led the launch of Pecém’s green hydrogen hub. Duna is passionate about creating a prosperous path to net zero as well as gender equity.

Kristof Coppé

Director Fleet Operations & Technical Business Development , Exmar

Kristof has been Director Fleet Operations and Technical Business Development at Exmar since 2025. He started his career in the dredging industry as technical superintendent before joining Exmar, first as technical superintendent and later as project manager and head of technical shipping. He was responsible for several innovative building projects in gas shipping including eight midsize gas carriers built in the Philippines and the world’s first order of LPG fuelled very large gas carriers. Kristof leads the development of Exmar’s first ammonia fuelled 46,000m³ gas carriers. He holds a master’s degree in electromechanical engineering-maritime technology from the University of Ghent.

Klaus Hofstadler

Energy & Operations Optimization Manager, LAT Nitrogen

Benedikt Messner

Senior Vice President, Uniper Global Commodities

In this role, Benedikt primarily focuses on building a portfolio of renewable power purchase agreements, global green hydrogen-related projects and offtake agreements. His interests extend into clean technology and energy transition ventures. Benedikt was General Manager at Enerjisa in Turkey until July 2016, which is a joint venture between Germany utility Eon and Turkish conglomerate Sabanci. Before joining Enerjisa in 2013, Benedikt was Origination Director at Eon Global Commodities in Düsseldorf. Before that, he held various managerial roles, including leading the power trading desks at Eon, Acton Energy and Enron Europe. Benedikt has a master’s degree from Vienna University of Economics and Business Administration.

Stephen Jackson

CEO, Ammonia Europe

Ammonia Europe is a newly established business association representing the interests of the European ammonia value chain. Stephen was previously Deputy CEO at Hydrogen Europe, as well as a Vice President and Senior Director in renowned global consultancies. The focus throughout his career has been on climate, energy, transport and trade policies, but he also has expertise in research and development, as well as industrial scale-up.

Eric Hungerbühler

Head of Low Carbon Commodities, , EnBW Energy

Andrea Guati Rojo

Policy and Advocacy Manager, Ammonia Europe

Andrea Guati Rojo is the Policy and Advocacy Manager at Ammonia Europe, an industry association representing the ammonia industry in Europe. Based in Brussels, Andrea leads the organisation’s EU policy strategy, positioning low-carbon ammonia as a strategic enabler of industrial decarbonisation, maritime transition, and energy security. With a background spanning engineering, policy, and communications, Andrea brings over ten years of experience in the ammonia sector across Europe and Latin America. She holds a Ph.D. from Cardiff University (UK), where her research examined public acceptance of ammonia, alongside an MSc in Sustainable Energy and Environment and a BA in Communication and Government Affairs.

Kieran Walsh

Commodity Broker, FIS

Johannes Eng

Head of New Energies, Port of Duisburg

Johannes is currently Head of New Energies at the Port of Duisburg (duisport), the world’s largest inland port, located at the center of Europe’s industrial Heartland North Rhine-Westphalia and its Rhine-Ruhr Region. Johannes’ work focuses on energy transition at the port, including new energies, hydrogen and its derivates, port transformation and supply chain. Prior to taking on this role, Johannes worked as Senior Manager Business of Solutions and Supply Chain Analyst for duisport industrial solutions (dis), where he oversaw global supply chain logistics and contract management. He also previously worked as Operations Manager EMEA for solar module manufacturer Canadian Solar, and as Head of Logistics for Norwegian renewable energy developer Scatec Solar. Johannes has a degree from EUFH European University of Applied Sciences Brühl, Germany and Saint Mary’s University, Halifax, Canada.

Mike Rendall

Chair, UK Ammonia Alliance

Dr Mike Rendall is chair of the UK Ammonia Alliance (UKAA), an industry group of pioneering businesses that seeks to maximise the strategic role of ammonia for a more secure and sustainable future. The UKAA focuses on creating a supportive environment in the UK for a range of industries to adopt low-carbon ammonia at scale. Mike has over 25yr of experience as a leader in ammonia and hydrogen conversion, fuel cells and energy storage technologies. In addition to chairing the UKAA, Mike is the chief technology officer of H-Power, where he leads product development, technology strategy and the commercial rollout of the company's ammonia cracker and fuel cell systems. Mike previously held key strategic technical roles at Dyson, Diverse Energy and multiple leading battery and fuel cell firms. He is recognised for driving product innovation and commercialisation across clean energy technologies.

Ruth Sharpe

Editor - Ammonia, Argus

Ruth has been editor of the Argus Ammonia report since 2017, most recently overseeing the report’s expansion into the clean ammonia space. She joined Argus in 2009 and covered the coal, biomass and freight markets in the UK and US, before moving into fertilizers in 2016. She has a master’s degree in journalism from Brunel University London.

Tim Cheyne

SVP - Global Head of Agriculture, Fertilizers, Ammonia, DEF, Argus

Tim is Senior Vice President for the fertilizer sector at Argus. Tim worked a process manager at an ammonia/urea plant in South Africa before moving to the UK to join KBR (then M.W. Kellogg) as a process engineer in the ammonia technology team. More recently Tim has covered fertilizer and industrial nitrogen as a market analyst.

Oliver Hatfield

VP Fertilizers, Argus

Oliver Hatfield is the VP of Fertilizers for Argus Media in London. Oliver joined Argus in October 2018 following its acquisition of Integer Research, where he was head of the fertilizer market research team and one of the company’s founders. He has more than 20 years of experience in business analysis and consulting.

Oliver is currently leading business development across Argus’ global nitrogen, phosphates and potash businesses, and driving the development of the company’s business in clean ammonia and specialty fertilizers. He is a regular speaker at industry events and is a graduate of economics and development economics from the University of Manchester in the UK.

Dan Hayes

VP Business Development, Argus

Joyce Aviso

Hydrogen Principle, Consulting, Argus

Joyce is a Principal in the Consulting practice at the London office of Argus Media, covering hydrogen. She has over 15 years of experience across the natural resources sectors, including hydrogen, power & renewables, petrochemicals, plastics, refining, gas and shipping. Prior to her role at Argus Media, she worked for a number of research and consulting firms, where she has led the development of new business units in hydrogen and chemicals, as well as managed bespoke consulting projects. Joyce holds an MBA (Hons) from Imperial College London.

Lizzy Lancaster

Deputy Editor - Ammonia, Argus

Lizzy is Deputy Editor at Argus Media specialising in traditional ammonia and emerging clean ammonia markets. After joining Argus in 2021, she covered ferrous metal markets with a focus on green steel, before moving into fertilizers in 2023 where she has expanded the breadth of Argus coverage and analysis of clean ammonia. She holds a masters degree in politics from King’s College London.

Timo Bollerhey

Chief Executive Officer & Lead Strategist, Hintco & H2Global

Claudia Wlk

Editor, Fertilizers, Argus

Fanny Lossy

Senior Director for Climate, ECSA (European Community Shipowner's Association)

Jack Merriott

Senior Manager - Consulting , Argus

Jack Merriott leads Argus Media’s bespoke consulting projects practice in low-carbon fuels in Europe. He has delivered lender due diligence for some of the largest and most advanced green and blue ammonia projects in the world, as well as green fertilizer projects. He also leads the consulting practice in alternative marine fuels, advising shipowners, storage companies, prospective fuel producers and financial institutions.

Joyce Aviso

Hydrogen Principle, Consulting, Argus

Joyce is a Principal in the Consulting practice at the London office of Argus Media, covering hydrogen. She has over 15 years of experience across the natural resources sectors, including hydrogen, power & renewables, petrochemicals, plastics, refining, gas and shipping. Prior to her role at Argus Media, she worked for a number of research and consulting firms, where she has led the development of new business units in hydrogen and chemicals, as well as managed bespoke consulting projects. Joyce holds an MBA (Hons) from Imperial College London.

MeiKei Lai

Manager - Consulting, Argus

Ruth Sharpe

Editor - Ammonia, Argus

Ruth has been editor of the Argus Ammonia report since 2017, most recently overseeing the report’s expansion into the clean ammonia space. She joined Argus in 2009 and covered the coal, biomass and freight markets in the UK and US, before moving into fertilizers in 2016. She has a master’s degree in journalism from Brunel University London.

Stefan Kruempelmann

Hydrogen and Future Fuels Editor, Argus

Stefan leads Argus‘ Hydrogen and Future Fuels service which provides news, analysis, production cost indicators and datasets on hydrogen, e-methanol and ammonia. He has been with Argus for more than six years and covered European natural gas markets before shifting his focus to hydrogen and its derivatives. Prior to this, he worked for an investment research company in London and studied in Maastricht, Leeds and London.