Leadership Team

Solex is driven by a team of diverse individuals who have rich and immeasurable experience and achievements in their field. Their collective knowledge base and exemplary commitment to innovation, research, quality and service is unprecedented, positioning Solex as a leader in its class.


Lowy Gunnewiek

Lowy Gunnewiek, Chief Executive Officer

Lowy joined Solex as an independent director in 2018, and became CEO in 2019. He has more than 30 years of experience as a senior executive and professional engineer in the international energy, mining and minerals and infrastructure sectors. He provides leadership in corporate direction and strategy, and is responsible for providing best-in-class technology solutions for Solex’s clients.

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 Mark Maertens-Poole  

Mark Maertens-Poole, Chief Financial Officer

Mark joined Solex  in 2017 as CFO. He provides leadership in all areas of financial management, human resources and information technology. Mark is a CPA, CA with more than 20 years of experience in international businesses ranging from large public companies to start-ups.

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 Peter Menchenton  

Peter Menchenton, Vice President Operations

Peter joined Solex in 2016 as the Technical Services Manager for North America, and brought with him many years of experience managing multi-disciplinary technical teams. He now fills the role of Vice President of Operations where he leads the engineering and design, project management and technical service groups.

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 Harry Nijkamp REV  

Harry Nijkamp, Director, Operations

Harry joined Solex in 2020. He has more than 25 years of leadership experience in a diverse set of international production environments. He brings to Solex specialized knowledge of stainless-steel production for the food, process and chemical industries.

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 Igor Makarenko  

Igor Makarenko , Global Director, Fertilizer

Igor joined Solex in 2010, with the past eight years spent solidifying our brand as a globally recognized technology provider for fertilizer cooling. Igor has extensive end-to-end experience developing turnkey cooling solutions in various applications ranging from urea granules to potash.

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 Pedro Moran  

Pedro Moran , Global Director, Food Products

Pedro joined Solex in 2008 as a sales engineer based in the UK, later establishing Solex’s operations in Brazil before becoming Vice President of Sales, Europe. As Global Director, Food Products, Pedro now oversees Solex's involvement in sectors such as oilseeds, sugar, coffee, cocoa and others.

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 Gerald Marinitsch  

Gerald Marinitsch, Global Director, Industrials & Energy

Gerald joined Solex in 2014 with a broad and comprehensive background in process engineering. Working with a team of experts at Solex, he now leads the company’s efforts in creating tailored and process integrated solutions within industrial applications such as chemicals, metals and minerals and sands.

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 Jan Steenhuis  

Jan Steenhuis, Global Director, Custom Fabrication

Jan oversees custom fabrication sales at our fabrication facility in Haaksbergen, The Netherlands. He brings more than 30 years of experience in sales and service within several different industries such as ventilation, burners, machine-building and industrial automation.

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