Zack Hartwanger

Zack Hartwanger is the Head of Africa Commercial Development at Open Mineral, a leading digital commodities platform connecting producers, traders, and buyers across global mineral markets. Based in South Africa, he leads the company’s commercial growth and market development initiatives across the continent, supporting the expansion of trade flows in base metals, battery metals, and bulk minerals.
With extensive experience in commodity trading, market development, investment facilitation, and mineral value chains, Zack works at the intersection of mining, trade, and international markets. His focus is on connecting African mineral producers to global buyers while helping mining jurisdictions unlock greater value from their resource endowments through strategic partnerships, investment, and market access.
A strong advocate for critical minerals development and responsible resource growth, Zack regularly engages on issues relating to beneficiation, supply chains, commodity markets, and Africa’s role in the global energy transition. He brings a practical commercial perspective to discussions on how mining projects progress from resource discovery to sustainable participation in global mineral markets.