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DOWA Metals and Mining America

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A subsidiary of DOWA Metals & Mining Co., Ltd., specializing in catalytic converter recycling in the US.

Last updated September 1, 2026

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Overview

DOWA Metals & Mining America (DMMA) is a subsidiary of DOWA Metals & Mining Co., Ltd. based in Japan. Established in 2016, it serves as a gateway to America to source used catalytic converters. The company is involved in catalytic converter recycling, including sampling and assaying, with operations in East Brunswick, NJ and a plant in Pottstown, PA.

History

DOWA Group started as a mine and a smelting plant of black ore in 1884. In 1991, DOWA expanded its services to recycling of spent auto catalysts. DOWA Metals and Mining America (DMMA) was established in 2016 as a gateway to America to source used catalytic converters.

Sources4 sources

  1. 1DOWA Metals & Mining America | Catalytic Converter Recyclingdmmamerica.com
  2. 2Who We Are - DOWA Metals & Mining Americadmmamerica.com
  3. 3Our Services | DOWA Metals & Mining Americadmmamerica.com
  4. 4DOWA Metals and Mining Americawikidata.org

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