Duobaoshan Copper Mine
Duobaoshan Copper Mine
Duobaoshan Copper Mine

The Duobaoshan project is situated in Heilongjiang Province and comprises the fully operational Duobaoshan copper-molybdenum and Tongshan copper mines. Collectively, these mines have a processing capacity of 80,000 tonnes per day, yielding an annual copper output of over 100,000 tonnes. Duobaoshan serves as an exemplary project for the development of non-ferrous metal mines and copper extraction from low-grade resources in Heilongjiang.

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Duobaoshan Copper Mine
  • Location
    Nenjiang, Heihe City, Heilongjiang Province
  • Ownership
  • Project status
    In production + undergoing expansion
  • Deposit Type
  • Mineral Resources (Inclusive of Mineral Reserves)
    Contained copper: 5.63Mt
  • Mining & Processing methods
    Open pit mining, underground mining + flotation
  • 2023 Production
    Copper: 110,000 tonnes, Gold: 2.6 tonnes
  • Debottlenecking and expansion

    Both the Duobaoshan and Tongshan mines are currently operational, with a combined throughput of 80,000 tonnes per day. The mining project for the No.2 orebody at the Tongshan Copper Mine is advancing rapidly, with trial production scheduled for the second quarter of 2024.

  • M&A

    Heilongjiang Duobaoshan Copper Inc. was established in 2006, with Zijin Mining owning a 31% interest. Through subsequent acquisitions in 2007 and 2016, Zijin Mining now holds 100% ownership of both the Duobaoshan and Tongshan Copper Mines.


The project works to build eco-friendly mines powered by innovation. It actively improves its processes and has adopted cutting-edge construction strategies. The project was included in the National Green Mines List, recognized as a National Intellectual Property Leader and was awarded the title of Health-Committed Company by the China Occupational Safety and Health Association. It stands as the largest non-ferrous metal mine in Heilongjiang Province and a benchmark for the extraction of low-grade copper resources.