Marcos de Paiva Bueno

Dr. Marcos Bueno is the Founder and CEO of Geopyörä, a Finnish geometallurgy company that helps mining projects prove how their orebody will actually perform. His work targets a risk the industry has learned to live with. Grade is measured exhaustively, while ore hardness, the property that governs plant throughput and therefore NPV, is barely tested: roughly one hardness test for every 10,000 grade assays. Yet a 1% shift in throughput moves project value by as much as 4%. Under Marcos's leadership, Geopyörä built the tools to close that gap, combining a patented rapid test that measures hardness on the small samples explorers already collect with Ai models that extend that data across an entire deposit. The result is deposit-wide throughput and operating-cost forecasts credible enough to plan and finance a mine on, and the orebody knowledge to optimise it over decades rather than quarters. Marcos holds a PhD in mineral processing and brings 20 years in comminution circuit design and m