

Strong Source
Strong Source
Our mission with the Strong Source podcast is to educate and inform, by creating a community where experts and guests from the entire commodity industry can share their unique perspectives. Martijn, ex-cacao trader, and Alexander, ex-dairy trader and founder of Vesper, have a deep-passion for this industry, which inspired them to start this venture: "We’ll be sharing our personal experiences, the valuable lessons we’ve learned along the way, and give you a glimpse of what to expect in our future episodes." This podcast is powered by Vesper, the leading commodity platform.
Episodes
Mentioned books

May 15, 2024 • 46min
Episode 9 with Willem Zimmerman
Willem Zimmerman, VP of Global Cocoa Trading at Barry Callebaut Group, shares his fascinating journey from coffee in the Ivory Coast to cocoa trading. He discusses the complexities of the cocoa supply chain, highlighting challenges like climate impacts and underinvestment. Willem contrasts physical trading with hedge fund strategies and emphasizes the importance of mentorship and consistency in trading. He also explores innovative solutions for increasing cocoa supply and offers insightful advice for newcomers to the commodities sector.

Apr 26, 2024 • 50min
Episode 8 with Jan Dieleman
In this episode, we are joined by Jan Dieleman, an industry leader and a great example for aspiring commodity traders. Jan is the President of Cargill Ocean Transportation, based in Geneva, and has managed roles in the U.S. and Europe during his more than 20 years with Cargill.
Across the maritime sector, Jan is a respected advocate for sustainable shipping, actively supporting reduced emissions, better vessel environmental performance, safer working conditions, and a more diverse workforce.

Apr 12, 2024 • 59min
Episode 7 with Stephane Bernhard
Stephane Bernhard, a seasoned commodities trader and former Global Head of Trading at ETG Commodities, shares his rich expertise in the trading landscape. He discusses building a trading edge through technical analysis and his macroeconomic insights, shaped by freight trading. Stephane delves into the complexities of the 2023 market, outlining challenges faced by commodity traders. He emphasizes the value of uncertainty in trading, risk management, and the importance of respecting market signals, sharing memorable lessons from his career.

Apr 5, 2024 • 51min
Episode 6 with Ben Tacken
In this engaging discussion, Ben Tacken, the Corporate Director of Purchase and Trading at DE Heus, shares his extensive experience in commodity trading. He dives into his early days at Cargill, the intricacies of moving from trading biodiesel to managing physical procurement. Ben contrasts futures trading with physical markets, explores the impact of the Russia-Ukraine conflict on grain flows, and emphasizes the importance of a data-driven, fundamental trading style. He also addresses the need for diversity in trading roles and the growing public interest in commodities.

Mar 15, 2024 • 50min
Episode 5 with Boudewijn van Vliet
On this episode we sit down with Boudewijn van Vliet. Boudewijn's has a fascinating journey in the world of commodities, starting from his early days at Cargill in Amsterdam and Geneva. After six years, he made a significant move to Citi, where he became Head of Freight Trading. Today, Boudewijn serves as a board member and non-executive director of two companies in Geneva, while also leading the charge as the founder of Advanced Plastic Purification International NV (APPI). APPI is revolutionizing plastic waste management with its large-scale sorting and recycling facility, paving the way for a more sustainable future.

Mar 1, 2024 • 59min
Episode 4 with Daan Vriens
Daan Vriens, CEO of Cefetra and seasoned commodity expert, shares insights from his dynamic career in tropical oils trading. He discusses his transition from a trader to leadership, emphasizing the importance of credibility and adaptability in management. Daan compares strategic planning to trading, highlighting the need to test assumptions and prioritize actions. He also delves into crisis leadership during COVID and the de-risking strategies adopted during the Ukraine crisis. With a focus on cultivating talent, Daan outlines his unique approach to decentralized organization and customer obsession.

Feb 16, 2024 • 55min
Episode 3 with David Behrends
David Behrends, Managing Partner and Head of Trading at Sucafina, shares insights from his extensive coffee trading career. He discusses the complexities of coffee markets, highlighting the differences between Arabica and Robusta beans. David also delves into the importance of collaboration and mentorship in trading, while touching on the challenges Gen Z faces in a digital age. He emphasizes innovation and technology's role in connecting agricultural supply chains, reflecting on how passion drives success in the coffee industry.

Feb 2, 2024 • 58min
Episode 2 with Ivo Sarjanovic
Ivo Sarjanovic, a successful trader turned advisor, professor, author, and VC ag tech investor, shares his insights in this podcast. Topics include his journey in commodity trading, lessons learned, delegating decision-making in trading, benefits of changing commodities, evolution of relationships in trading companies, trading philosophy and macro impacts in markets, and the importance of not being dogmatic in the commodity industry.

Jan 19, 2024 • 42min
Episode 1
The hosts share personal stories and discuss the exciting world of agri commodities. They talk about the thrill of markets, the impact of agriculture, and the special aspects of the industry. The episode also touches on the role of fundamental analysis in trading, navigating challenges, and the evolution of commodity trading with the impact of technology.

Jan 5, 2024 • 1min
Strong Source Trailer
Get ready to dive deep into the world of commodities with Strong Source, a podcast featuring two industry veterans who know trading inside and out. In this trailer, we introduce Martijn and Alexander, two former traders with a wealth of experience and a passion for innovation.


