紫金矿业

Duobaoshan Copper Mine
Duobaoshan Copper Mine
Duobaoshan Copper Mine
Duobaoshan Copper Mine

The Duobaoshan Copper-Molybdenum Mine and the Tongshan Copper Mine are home to ultra-large, low-grade, porphyry copper deposits, with associated metals such as gold, silver, and molybdenum.

In 2020, deep exploration of the Tongshan deposit yielded a major breakthrough. According to the exploration report, which has been reviewed and validated by the government in June 2024, the No. III and No. V orebodies have added 3.65Mt of copper resources, along with 130,000 tonnes of molybdenum, 55 tonnes of gold, and 1,104 tonnes of silver. The No. V orebody alone contains 2.81Mt of copper, making it the only ultra-large copper deposit discovered in Northeast China in the past four decades.

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Duobaoshan Copper Mine
  • Location
    Nenjiang, Heihe City, Heilongjiang Province
  • Ownership
    100%
  • Project status
    In production + undergoing expansion
  • Deposit Type
    Porphyry
  • Mineral Resources (Inclusive of Mineral Reserves)
    Contained copper: 5.45Mt, Grade 0.45%
  • Mining & Processing methods
    Open pit mining, underground mining + flotation
  • 2024 Production
    Copper: 114,800 tonnes, Gold: 2.88 tonnes
    Silver: 40.03 tonnes
  • Debottlenecking and expansion

    Both Duobaoshan and Tongshan are currently in production, with a combined daily processing capacity of 80,000 tonnes. At Tongshan, production from the No.2 orebody began in April 2025, while the project to develop its deeply buried deposits is being advanced. This expansion is expected to extend its mine life to 2068, providing momentum for long-term economic growth in its host region.

  • M&A

    Heilongjiang Duobaoshan Copper 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.

ESG

Duobaoshan Copper is committed to high-quality development driven by innovation, coordination, and sustainability. The Duobaoshan Copper-Molybdenum Mine has been included in China’s National Green Mines List. The operation has earned multiple recognitions, including designation as a “National Intellectual Property Excellence Company” by the government and a “Health-Conscious Workplace” by the China Occupational Safety and Health Association. To date, it has contributed over RMB 10 billion in taxes and has become a key tax contributor in Heihe and Nenjiang. It is also the largest non-ferrous metal mining operation in Northeast China and a model for copper extraction from low-grade ores.

News
More +
Duobaoshan Copper Mine
Heilongjiang Zijin Copper Wins Climate Lighthouse Award for Innovative Flue Gas Treatment Project
On April 22, Heilongjiang Zijin Copper’s “Flue Gas Treatment System Project” was...
Zijin Mining Adds 18.38 Million Tonnes of Copper Resources Through Exploration
Duobaoshan Copper Mine
Zijin Mining Adds 18.38 Million Tonnes of Copper Resources Through Exploration
On June 28, Zijin Mining announced a significant discovery of 18.38 million tonn...
Zijin’s Tongshan Copper Mine Adds 3.65 Million Tonnes of Copper Resources
Duobaoshan Copper Mine
Zijin’s Tongshan Copper Mine Adds 3.65 Million Tonnes of Copper Resources
Duobaoshan Copper, a subsidiary of major global metals miner Zijin Mining, has a...