
With the copper smelting process using advanced technology and production lines, the two factories, in addition to producing the main product of 99.95% Cu copper cathode, also recover rare metals such as gold, silver and produce sulfuric acid, copper sulfate, and gypsum.
Copper cathode is a form of copper that is 99.95% pure. To remove impurities from copper ore, it goes through two processes, smelting and electrosmelting.

In the first 6 months of 2025, Lao Cai Copper Smelting Branch produced over 16,689 tons of copper cathode, reaching 55.63% of the yearly plan; nearly 575 kg of gold bars, reaching 65.68% of the yearly plan; over 1,210 kg of silver bars, reaching 41% of the yearly plan; 68,889 kg of sulfuric acid, reaching 50.96% of the yearly plan; 7,461 tons of gypsum produced, reaching over 53% of the yearly plan; over 200 tons of copper sulfate, reaching over 54% of the yearly plan.

Currently, both copper smelters maintain continuous production at 100% of design capacity to ensure copper product supply for domestic and export markets.
Source: https://baolaocai.vn/chi-nhanh-luyen-dong-lao-cai-san-xuat-dat-va-vuot-ke-hoach-post648014.html
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