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Yava Technologies has invested more than $25 million in the development of innovative, eco-friendly hydrometallurgical processes to produce critically needed, high purity materials from industrial waste streams, ores and intermediate feedstocks. A process developed by Yava to recover High Purity Alumina (HPA) from coal fly ash led Yava’s research to refine the process to efficiently produce HPA from a variety of widely available, low-cost feedstocks.