Dowa Holdings Co., Ltd. engages in the environmental management and recycling, nonferrous metals, electronic materials, metal processing, and heat treatment businesses worldwide. The company's Environmental Management & Recycling segment offers intermediate waste treatment, controlled landfilling, and soil remediation services; metal, household appliance, and automobile recycling services; consulting on environmental matters; and environmental logistics services. Its Nonferrous Metals segment produces and sells gold, silver, copper, lead, zinc, zinc alloys, palladium, rhodium, tin, antimony, nickel sulfate, bismuth, indium, platinum, tellurium, and sulfuric acid.