Argus Clean Ammonia Europe Conference

Boudewijn Siemons

CEO, Port of Rotterdam

Boudewijn Siemons has been Chief Executive of the Port of Rotterdam Authority since 1 February 2024. Before then, he served as Chief Operating Officer from October 2020 and interim Chief Executive from July 2023. Earlier he worked as President of Royal Vopak’s Americas division and had a range of management positions at Royal VolkerWessels between 1998 and 2006. As Chief Executive of the Port of Rotterdam, Boudewijn is member of the World Hydrogen Advisory Board. The Port of Rotterdam is working with various partners towards the introduction of a large-scale hydrogen network across the port complex, making Rotterdam an international hub for hydrogen production, import, application and transport to other countries in Northwest Europe.

Jose Antonio de las Heras

CEO, FertigHy

Carl-Antoine Saverys

CEO, Exmar

Carl-Antoine has been involved in the family ship owning business since 2009, starting with an internship at Exmar Offshore Houston and chartering manager at CMB. He further developed his experience in shipping as Sale and Purchase Broker, with Victoria Shipbrokers GmbH & Co. KG in Hamburg. He rejoined as Business Development Manager for the Infrastructure department at EXMAR NV in 2017. In 2022 he joined the Shipping team as Deputy Director. He holds various director positions in Exmar Group companies including Ship Management.

Nadja Håkansson

CEO, thyssenkrupp Uhde

Vibeke Rasmussen

SVP Product Management and Certification & President, Yara Clean Ammonia & Ammonia Energy Association

Vibeke joined Yara in 2014, where she has been working within R&D as head of the NPK and environmental technologies department, and as product quality director prior to joining the Yara Clean Ammonia team. Prior to joining Yara, Vibeke worked within the waste and water industry for many years, where she also held managerial positions. She was managing director for Norwegian water and wastewater engineering company BioTek, and was also COO for KrugerKaldnes, which is part of Veolia. Vibeke has an MSc in civil engineering from the Norwegian University of Science and Technology, and an MBA from Lincoln University.

Rick Beuttel

Vice President of New Energy US , Woodside Energy

Rick Beuttel is the Vice President of New Energy US for Woodside Energy. In this role, Rick is responsible for the strategic development of Woodside’s new energy projects and portfolio in the US. Prior to joining Woodside in April 2024, Rick was Vice President of Business Development Hydrogen at Bloom Energy. He began his career in 1990 with Air Products where he nearly spent more than 30 years and held senior leadership roles across the US and Latin America, including Vice President of Large Projects Business Development, Americas where he led the development of over $10B of clean hydrogen, ammonia and SAF investments. Rick has extensive experience in project and business development, deploying and scaling large scale hydrogen and derivatives projects across international markets. He holds a Bachelor of Science in Mechanical Engineering from Stevens Institute of Technology and a MBA in Finance from Lehigh University.

Benedikt Messner

Senior Vice President, Uniper Global Commodities

Marie-Laure Halleman

Business Development Executive, Low Carbon Solutions, ExxonMobil

Marie-Laure Halleman is EU Business Development Executive at ExxonMobil Low Carbon Solutions (LCS). In this role, she is accountable for development of opportunities across all the verticals of Carbon Capture Utilization and Storage, Hydrogen & Derivatives and Low Emission Fuels in the region.

She began her career with Esso France in 1998, as a Retail Territory Manager. In Europe, she moved through a series of Project and Sales roles, including Managing Director of the motorway service station subsidiary. Moving to the US HQ in 2009, she held several Global and Strategic Planning roles in the Fuels and Lubricants organization. She returned to the EAME HQ in Brussels as Fuels Commercial Sales Manager. In 2018, she took the role of UK Fuels Manager, accountable for the entire Fuels Value Chain from crude to end customers in the UK. Following that role, she led the fuels Supply and Logistics organization in the EAME region, up until her current appointment in LCS, July 2023.

Marie-Laure is a member on the Board of Directors of Esso S.A.F.

Marie-Laure is also member of the Executive Council for the Women Interests Network at ExxonMobil, and a keen advocate of Inclusion & Diversity.

Marie-Laure graduated from the French ESSEC Business School. She and her husband have 3 daughters. They all enjoy tennis, skiing and travelling.

Olivia Barnes

Head of Low Carbon Commodities, EnBW

Olivia leads the low carbon commodities team at utility EnBW. Her particular focus is on the commercialisation of upstream green and low-carbon molecule projects, to unlock midstream infrastructure and secure downstream end use in Europe. Olivia has almost two decades’ experience in the energy and utilities sectors. She began her career at ExxonMobil, optimising equity gas production flows and securing long-term production for South Hook LNG. After ExxonMobil, Olivia spent over a decade at European trading firm Vitol, trading the pan-European gas portfolio and expanding it to new markets in the North Sea and eastern Europe.

Navid Ostadian-Binai

Head of Green Vessels and Fuels, Maersk Tankers

Navid is Head of Green Vessels and Fuels at Danish shipping firm Maersk Tankers, where he is concerned with the commercialisation and scale-up of green shipping. Navid has 17 years of technical and commercial experience across various industries and has helped initiate and grow business for corporate and start-up companies. He has an MSc in materials science and engineering from the Norwegian University of Science and Technology, and is an advocate for the energy transition and equitable opportunities.

Ewelina Daniel

Policy Officer, DG CLIMA, European Commission

Mark Stoelinga

Director, Energy & Infrastructure , Port of Rotterdam

Mark Stoelinga studied Chemical Engineering in Delft and moved to the UK after his graduation to work in the industrial gas business for Air Products. After several years in techno-commercial roles he worked in China as the Equipment Sales Director for Asia and then moved to India where he was Country Manager and member of the joint-venture Board. After returning to the Netherlands he started at Worley Engineering as Business Manager for the Netherlands and then moved his focus to large energy transition projects in the Port of Rotterdam. In 2021 Mark joined the Port of Rotterdam Authorities as Business Manager with a focus on Hydrogen and Infrastructure.

Steve Petridis

Special Advisor to the Chairman, Air Products

Steve has more than 40 years of experience in the energy sector and the broader chemicals industry. His industry experience covers oil and gas exploration, industrial gases, carbon project development, chemicals, hazardous waste and industrial services, green and blue hydrogen, and ammonia, including carbon capture and sequestration. In his current role, Steve provides strategic input and undertakes special assignments and studies.

Rik Sneep

Director of Strategy and Transformation, CEPSA

Bert De Backker

Policy Manager EAME, Low Carbon Solutions, ExxonMobil

Bert holds a master’s degree in electrical engineering from KU Leuven University in Belgium, and has 27 years of experience in various manufacturing, planning and business leadership positions in ExxonMobil's refining, lubricants and chemicals businesses in Europe and Asia. Bert assumed his current position in September 2022.



He is married and based in Brussels, Belgium.

Robert Vroege

Director ING Metals Mining & Fertilizers, ING Bank

Robert has extensive experience with over 25 years in banking and a background in asset backed finance and consulting. He joined the Metals Mining & Fertilizers team 6 years ago and as “Global fertiliser Lead” has coordinated and executed transactions in the sector in both project and corporate financings. Currently he specialises in core Fertilizer markets involving the Nitrogen, Potash and Phosphate related macro nutrients.

He has a responsibility to support transactions and enable strategic dialogues with key fertiliser producers throughout the ING network.

ING has strong sustainability credentials and expertise, therefore low emissions Hydrogen/Ammonia and the energy transition are a particular focus and are addressed in close collaboration with colleagues in the ING Energy Project Advisory business and New Energy Technologies.

Duna Uribe

Senior Business Manager, Clean Ammonia, Port of Rotterdam

Duna Uribe is a Senior Business Developer for clean ammonia at the Port of Rotterdam. Duna is an international port development professional with commercial expertise having worked in projects internationally, including the Americas, Europe, the Middle East and Asia. As part of Port of Rotterdam International Duna had a leading role in creating the partnership with the Pecem Port Complex, a joint venture from the Port of Rotterdam situated in Brazil where together with government, academic and industrial stakeholders she led the launch of Pecem’s green ammonia export hub. Currently she manages the clean ammonia portfolio ensuring that the new molecules will flow through the Port of Rotterdam. She is passionate about gender equity, travelling and creating a prosperous path to net zero.

Christian Renk

Head of Technology, Innovation & Sustainability (TIS), thyssenkrupp Uhde

Christian studied chemical engineering and did his PhD on DME synthesis from gasified biomass at the Karlsruhe Institute of Technology. Following completion of his PhD, Christian worked in Australia for six years in the fields of wastewater cleaning and nitric acid/ammonium nitrate. He returned to Germany and started working for thyssenkrupp in 2014 as a research engineer. A year later, he was promoted, heading the Technology, Innovation and Sustainability Fertilizer group. Through restructuring the group, Christian is now responsible for several technologies including green and blue ammonia developments.

Johannes Eng

Corporate Development and Strategy, Port of Duisburg

Johannes is currently Senior Project Manager for Corporate Development and Strategy at German port Duisport Duisburger Hafen AG. Johannes’ work focuses on energy transition at the port, including new energies, hydrogen and its derivates, and port transformation. Prior to taking on this role, Johannes worked as Senior Manager Business of Solutions and Supply Chain Analyst for Duisport’s packing logistics department, where he oversaw global supply chain logistics and contract management. He also previously worked as Operations Manager 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.

Naomi van den Berg

Program Manager Sustainable Transport, Port of Rotterdam

Christian Berg

Managing Director, Norway, Amogy

Christian has over 25 years of international leader experience in the oil and gas and offshore wind industries. His background includes hands-on experience with vessels, marine consultancy and offshore chartering. He joined Amogy Norway in 2022 as Managing Director, and was previously Commercial Director with Yara Clean Ammonia.

Gilles Decan

Program Manager Hydrogen, Port of Antwerp-Bruges

Ge Liu

International Trade Manager, SPIC-JEP

Ge is responsible for the international trade management of renewable energy sources such as hydrogen and ammonia at Jilin Electric Power’s sales company. She is involved in international markets, conducting trade negotiations and managing cross-border business operations, driving the company's international development in the renewable energy sector. Ge graduated from the School of Environmental Ecology at the University of California, Irvine, with a solid foundation in environmental science, and completed graduate studies at the UK’s Warwick Business School, specialising in business management.

Harish Jayaram

Vice President, Business Development, Hygenco Green Energies

Kevin Rouwenhorst

Technology Manager, Ammonia Energy Association

Wouter Vanhoudt

Global Head of Business Development, Hinicio

Wouter is a commercial engineer in business informatics by background with a master’s degree in financial management from Vlerick Management School, Belgium. Wouter joined Hinicio, a strategic consultancy specialising in hydrogen, 10 years ago as Europe Director and assisted European Commission, national and regional policy makers as well as blue chip companies and technology start-ups in the hydrogen space. Before joining Hinicio, he worked in the Middle East for three years and in China for one year. Since 2014, he has co-ordinated the multi-stakeholder CertifHy project, an initiative financed by the Clean Hydrogen Joint Undertaking and considered worldwide as the leading hydrogen certification system. He is a CEN JTC6 liaison, contributing to the European CEN Standard on renewable energy guarantees of origin, and acted as board member and chair of the Renewable Gas Scheme Group within the Association of Issuing Bodies during 2020-22. Wouter is spokesperson for Industry of Hydrogen Europe. He speaks fluent English, Dutch and French, and has knowledge of Spanish and German.

Graham Weale

Professor for Energy Economics, Ruhr University Bochum

Graham focuses on decarbonisation, hydrogen and derivatives, and power market design. He spent nine years as Chief Economist for RWE, Germany’s largest power generator, and before this was Director of European Energy Services for Global Insight, now S&P. His responsibilities have included projects for the European Commission, governments and regulators, and acting as an expert witness in natural gas arbitration cases. During a stint at Deloitte, he specialised in energy liberalisation. He began his career with ExxonMobil, working in supply and refining. Graham has a physics degree from Oxford University, an MSc in systems engineering from the University of London and an MBA. He is a regular speaker and moderator at international conferences.

Monique Berrevoets-Steenbakker

Strategic Advisor, Antea Group

Adam Nye

VP Global Carbon Markets, Argus

Adam joined the Argus Media business development team in April 2022 to lead the development of a pricing & reporting product for the voluntary carbon markets. After spending the earlier part of his career with Enron and Williams Energy in physical oil trading & distribution, Adam spent 10 years in the commodities group at Morgan Stanley working with corporate clients in the energy derivatives space. Helping clients navigate the early years of the ETS started his journey in carbon and later, as Head of EMEA Energy Origination at Commonwealth Bank of Australia, he worked with clients wanting to start to engage with the voluntary carbon markets. Adam has an academic background as a chemist having completed his undergraduate degree at the University of Manchester Institute of Science & Technology and has a bilingual MBA from IESE Business School in Barcelona.

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.

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.

Jack Merriott

Senior Manager - Consulting Services, Argus

Jack Merriott has ten years’ experience working in strategy consulting, strategic planning and market intelligence, spanning fertilizers, industrial products and consumer goods and is responsible for low carbon consulting projects at Argus Media, spanning green hydrogen, green ammonia and carbon markets. Prior to joining Argus, he was a Manager at Integer Research with responsibility for consulting projects in Europe and the America. Jack is a graduate of Oxford University and is fluent in French and Spanish.

Joyce Grigorey

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.

Alistair Wallace

Principal - Consulting, Argus

Alistair Wallace is Argus' head of ammonia research, and leads Argus' cost modelling in the clean ammonia space. Alistair also has over 15 years of experience in the nitrogen market and supports the company’s research on the wider fertilizer industry, focusing primarily on cost competitiveness and mid to long-term price forecasting for the N, P and K markets. Alistair presents at major conferences on ammonia and fertilizer market trends.

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.