Leadership

Ameropa’s Holding Board and Executive Team provide strategic direction and oversight for the business. Together, they support the company’s long-term growth, ensure effective governance, and help position Ameropa for success in global agricultural markets.

Holding Board

  • Matthias Altendorf

    Chairman

    Chairman of Ameropa’s Holding Board since 2026. Matthias spent nearly four decades at Endress+Hauser, serving as CEO from 2014 to 2023 and later as Chairman of its Supervisory Board. He brings extensive experience in leadership, technology, and governance.

  • Lucas Miescher

    A fourth-generation Ameropa shareholder, Lucas has over 20 years experience in global commodities, including grain trading, fertilizers, minerals, and business development. He worked across Ameropa’s operations in Asia and Europe and founded industrial minerals trading company Alecaia in 2020.

  • Karin Perraudin

    Karin brings expertise in finance, governance, family business, and Swiss agriculture. Her career spans her family company Union Fruits and PwC. She joined the Board of Fenaco in 2016 and currently serves as Chairman of the Board of Groupe Mutuel Holding SA.

  • Stefano Rettore

    Stefano is an experienced agri-food executive and investor with expertise in grains, fertilizers, logistics, risk management, and global commodities. He held senior leadership roles at CHS and ADM, including President of CHS International and ADM Ag Services, and is the founder of LemanVentures.

  • Alexa Siebert

    Alexa brings extensive experience in fertilizers, finance, M&A, and executive management. She spent 18 years with K+S Group, holding senior roles including Head of M&A, CEO of Sociedad Punta de Lobos, Managing Director of K+S Kali Division, and finally Group CEO Europe.

  • Alix Zacharias

    A fourth-generation Ameropa shareholder, Alix brings expertise in organizational strategy, leadership, and family business governance. She co-founded August Public in 2015 and now advises growing businesses while serving on the Ameropa Foundation Board and Family Council.

Executive Team

  • Josh Zacharias

    Group CEO

    Group CEO of Ameropa and a fourth-generation shareholder, Josh joined the company in 2009 and has held financial, commercial, trading, and risk roles across Switzerland, the US, and Australia. He brings expertise in fertilizers, trading, risk management, and international operations.

  • Roman Antonov

    Chief People & Culture Officer

    Roman leads Ameropa’s people and culture strategy. He joined the Group in 2021 after holding international HR roles in the aviation industry. His expertise spans organizational development, talent management, transformation, coaching, and international HR leadership.

  • Laurent Bogaert

    Chief Financial Officer

    Laurent brings over 25 years of finance experience in agribusiness. Before joining Ameropa in 2020, he spent 17 years at Bunge in leadership roles across Europe and North America. He oversees finance, accounting, treasury, tax, risk, and IT across the Group.

  • Alexander Chumakov

    Chief Operating Officer (Fertilizers)

    Alex has worked in fertilizer trading since 1985. He joined Ameropa in 2008, established Ameropa Asia in Singapore, and has led the Group’s global fertilizer operations since 2015. His expertise spans trading, supply chains, commercial strategy, and business development.

  • Gabriel Sztutwojner

    Chief Trader, Fertilizers

    Gabriel began his career at Ameropa in 2003. After six years at Trammo as Global Head of Urea Trading, he returned to Ameropa in 2013 and became Chief Fertilizer Trader in 2015. His expertise spans fertilizer markets, nitrogen products, global trading, and commercial strategy.

  • Renier Van Hanswijck

    Chief Trader, Grains & Oilseeds

    Reinier joined Ameropa in 2026 with over 20 years of international experience. He previously held senior roles at Bunge, Viterra, and Glencore. His expertise spans agricultural commodities, trading, risk management, commercial strategy, and international business development.

  • Matthew Weber

    General Counsel

    Matthew leads Ameropa’s legal and compliance activities worldwide. Previously, he held senior legal and compliance roles at Viterra and spent around 12 years at Glencore. His expertise spans corporate law, governance, compliance, strategic transactions, and international commodities.