TRE HOLDINGS CORPORATION (TREホールディングス株式会社) is a Japan-based holding company overseeing the TRE Group, which focuses on resource circulation and environmental services. Its businesses include the collection, disassembly, sorting, and intermediate treatment of industrial and construction waste, as well as the recovery and supply of recycled raw materials such as metals and glass.
Through group companies including Shinshu Takeei and TRE GLASS CORPORATION, the company develops recycling supply chains and quality-controlled material flows, for example processing window glass waste into cullet suitable for flat-glass manufacturing. TRE Holdings supports waste reduction, materials recycling, and circular-economy infrastructure across Japan.
Window glass waste is recycled into high-quality glass, reducing landfill use and emissions, while assessing economic feasibility for a nationwide recycling framework.
