
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.
Latest episodes

Jun 27, 2025 • 1h 8min
Episode 26 with Denis Zaica
In this episode, we welcome Denis Zaica, Chief Trading Officer at FincoEnergies and former Commercial Director of Biodiesel at Cargill. Denis shares his remarkable journey from Moldova to leading global commodity trading operations, beginning with cocoa trading at Cargill and now spearheading biofuel strategies at Finco. We discuss his transition from agriculture to energy, the role of trading in the energy transition, and how biofuels are influenced by global market dynamics—including current geopolitical tensions.

May 30, 2025 • 1h 7min
Episode 25 with Martijn Noordhoek
In this episode of the Strong Source podcast, we welcome Martijn Noordhoek, a veteran in the global sugar trade with experience at Cargill, Sucden, Glencore, and now Viterra. Martijn shares how he stumbled into the world of commodities via a freight role and soon found his calling in sugar trading. He reflects on the steep learning curve for young professionals, the nuances between raw and white sugar, the role of ethanol and Brazilian crop cycles, the effects of geopolitics and logistics on trade flows, the rise of Ozempic and its impact on demand, and the cultural contrasts across major trading houses.

May 16, 2025 • 56min
Episode 24 with Richard Allen
In this episode of The Strong Source, we welcome Richard Allen, President of Fonterra Global Ingredients — the world’s largest dairy exporter — for an open conversation about the future of dairy, volatility in commodity markets, and the complexity of global supply chains.From his 18-year journey across continents with Fonterra to the bold decision to divest the company’s consumer division, Richard shares powerful insights on the evolution of the dairy industry, risk management, and what it takes to lead in uncertain times.

Apr 25, 2025 • 56min
Episode 23 with Daan Struyven
Daan Struyven, Co-Head of Commodities Research at Goldman Sachs, shares his wealth of knowledge on the evolving commodities landscape. He discusses the accelerating demand for gold as a safe investment amid rising geopolitical tensions. The conversation dives into the future of oil and renewables, predicting a peak in oil consumption by 2034. Struyven also explores the unpredictable nature of black swan events and their economic effects, offering sage advice for future commodities professionals on the importance of research and adaptability.

Apr 11, 2025 • 1h 1min
Episode 22 with Corinna Olearo
Our guest star in this episode is Corinna Olearo, Head of Commodity Research and Price Risk Management at Nestlé. With over 17 years of experience in the commodity sector, she brings a sharp analytical mind and deep market insight to one of the world’s largest food companies. Starting her career as a sugar analyst, she now oversees a broad range of commodities, from cocoa and coffee to dairy and energy. In this episode, she shares her journey, the challenges of managing price risk at scale, and why curiosity, adaptability, and clear communication are essential in the ever-volatile world of commodities.

Mar 14, 2025 • 53min
Episode 21 with Kendra Rhodes
In this episode of Strong Source – The Commodity Podcast, we sit down with Kendra Rhodes, Director of Global Risk Management, Market Insights, and Communications at General Mills, to explore how FMCG companies navigate extreme market volatility. Kendra shares insights on balancing procurement strategy with risk management, the shift from complex derivatives to simpler hedging approaches, and the critical role of data and agility in decision-making.

Feb 28, 2025 • 58min
Episode 20 with Fausto Filice
In this episode of the Strong Source Podcast, we are excited to welcome Fausto Filice, a seasoned veteran in commodity trading with over three decades at Cargill and Bunge. Fausto has witnessed the transformation of global grain markets, from traditional deal-making to today’s data-driven landscape.Throughout this conversation, Fausto shares insights on the evolution of commodity trading, the role of leadership and teamwork, and why fundamentals remain crucial despite technological advances. He also offers a candid look at managing risk, navigating volatility, and sustaining a successful career in trading.

Feb 16, 2025 • 52min
Episode 19 with Rob Gosman
In this episode of the Strong Source Podcast, we are excited to welcome Rob Gosman, a seasoned commodity trader with over 30 years of experience in energy and oil trading. Having worked at industry giants like Cargill and BP, Rob has navigated some of the most volatile market conditions and played a crucial role in leading successful trading teams. Throughout this conversation, Rob shares his journey from agricultural trading to the energy sector, offering insights into risk management, market dynamics, and the evolution of commodity trading. He also provides a first-hand account of managing trading risk during the 2020 oil crash amid the COVID-19 pandemic and discusses the importance of learning from mistakes, adapting to market changes, and maintaining a trader’s mindset. Whether you’re an aspiring trader, a market enthusiast, or someone looking to understand the complexities of global commodity markets, this episode is packed with valuable lessons and compelling stories from one of the industry’s most experienced professionals.

Jan 31, 2025 • 1h 9min
Episode 18 with Dwight Anderson
In this episode of the Strong Source Podcast, we are excited to welcome Dwight Anderson, founder of Ospraie Management and one of the most respected names in commodity investing. With decades of experience, Dwight has navigated volatile markets, from trading cocoa and metals to managing hedge fund risk during the 2008 financial crisis.Throughout this conversation, Dwight shares his insights on the evolution of commodity trading, the impact of algorithmic strategies and AI, and why fundamentals still matter in today’s market. He also offers a candid look at the weight of leadership, the responsibility of managing capital, and what it takes to build a successful investment firm.

Oct 24, 2024 • 1h 11min
Episode 17 with Ed Turner
In this episode, we welcome Ed Turner, an experienced commodity trader with over a decade in the energy markets. Ed discusses his journey from trading base metals at Mitsubishi UFJ to leading Mandara’s trading desk. Now a Senior Trader at Gunvor and an entrepreneur with Shogun Sakes Ltd., he shares insights on navigating oil trading dynamics, the transition from large firms to smaller, high-intensity environments, and the importance of risk management. Ed also explores the psychological aspects of trading and his shift from market-making to a more strategic, balanced approach.