Dainen Materials Co., Ltd

Dainen Materials is a specialized trading company within the Dainen Group, dedicated to advancing the circular economy for lithium-ion batteries. We operate globally in the trade of black mass, battery scrap, and other recyclable materials—connecting battery manufacturers, recyclers, and refiners across Asia, Europe, and North America. Established in 1938 in Himeji, Japan, the Dainen Group has decades of expertise in the energy and materials sectors. At Dainen Materials, we build on this foundation by offering both technical knowledge in battery materials and logistics coordination for cross-border recycling. We play a key role in the international movement of black mass, particularly from spent lithium-ion batteries. Unlike large recyclers or general traders, we operate as a trusted intermediary, managing sensitive, regulation-heavy logistics without holding stock. Our strength lies in flexibility, confidentiality, and compliance. One of our core differentiators is our deep experience in anode manufacturing, especially for EV lithium-ion batteries. This background allows us to bring unique value to the anode-side recycling process, which is often underdeveloped compared to cathode recovery. We combine graphite processing expertise with practical trade capabilities to enable smarter, more complete recycling strategies. Our work helps global partners reduce waste, recover key resources like graphite, lithium, and cobalt, and move closer to sustainable battery lifecycles. If you're seeking a reliable, knowledgeable partner for black mass sourcing, battery scrap trade, or anode recovery, Dainen Materials is here to support your goals in responsible, global battery recycling.