Dowa Metals & Mining America (DMMA),
Top US Catalytic Converter Recycling Facility

Do you have catalytic converters? 
Let us recycle them in the most efficient and eco-friendly way.

DOWA Metals & Mining America (DMMA) has been playing a key role in converter recycling in America since 2016. We are a subsidiary of DOWA Metals & Mining Co., Ltd. based out of Japan. DOWA Group, established back in 1884 as a mining company, owns integrated smelting facilities in Kosaka. This makes DMMA competitive in the market, ensuring top-level customer satisfaction.
Our office is now located in East Brunswick, NJ.