
In this episode, we are joined by John de Vries, MD and CEO of Black Rock Mining, and Tae-Sun Yeom, Senior Manager at POSCO International - two key players in the global battery supply chain.
John discusses the significance of Black Rock’s recent milestones, including this week’s announcements regarding the Special Mining Licence and power supply agreement, and what these mean for the project’s future. He explains why Black Rock is maintaining its focus on high-purity flake production rather than moving downstream, and how the company is building a resilient, China-independent business model.
Tae-Sun shares why POSCO International selected Mahenge as a strategic investment - citing its scale, flake size, purity, logistics, and management strength - and outlines POSCO’s goal of reducing reliance on China by developing a fully integrated supply chain. This includes the company’s recent $277 million investment into domestic spherical graphite production, reinforcing POSCO’s position as the largest anode producer outside China.We also explore the evolving conversation around natural vs. synthetic graphite, feedstock economics, and why natural graphite is increasingly seen as a strong fit for silicon-rich battery chemistries.
Published 13 May 2025
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