Producer
Daye Nonferrous Metals Co., Ltd.
Chinese state-owned copper producer (SHEX: 000758; HQ Huangshi, Hubei Province); one of China's oldest and most historically significant copper smelting enterprises, operating at the site of the ancient Tonglushan copper mine complex — a site with documented copper mining and smelting going back 2,700 years (early Western Zhou Dynasty). The Tonglushan site (literally 'Bronze Green Mountain') is a UNESCO World Heritage Site candidate and represents one of humanity's oldest industrial copper operations. Daye Nonferrous's modern smelter processes imported concentrate alongside ore from the historic Daye deposit. The company produces copper cathode, copper rod, and downstream copper products at the Hubei complex.
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Copper Cathode Smelting
60%Sulfuric Acid (Byproduct)
18%Precious Metals Recovery
12%Copper Products & Alloys
10%
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Origin2023
Daye Nonferrous operates at the Tonglushan (Copper Green Mountain) site in Hubei Province — one of the most remarkable industrial heritage sites in the world, with documented copper mining and smelting going back 2,700 years to the Spring and Autumn period (771-476 BCE). Archaeological excavations uncovered ancient shafts, ore dressing facilities, and smelting furnaces; the site is now preserved as a national museum alongside the modern industrial complex. Daye is a case where ancient mining heritage and 21st century copper production co-exist at the same geographic location, with the same ore bodies that Bronze Age metalworkers exploited still being worked by modern industrial methods.
Daye Nonferrous Metals ↗Did you know2021
Daye Nonferrous produces sulfuric acid as a byproduct of copper smelting at significant scale — each tonne of copper smelted produces approximately 2-3 tonnes of sulfuric acid from the SO2 in copper concentrate. Daye's sulfuric acid output goes into phosphoric acid production (for DAP/MAP fertilizers used in agriculture) and industrial chemicals. The copper supply chain and the agricultural fertilizer supply chain are therefore co-produced at the same Hubei industrial site: Daye's decision on copper smelting throughput directly affects the regional sulfuric acid supply available for fertilizer manufacturing, connecting copper production capacity to crop nutrient supply in a link that most agricultural commodity analysts don't model.
ACS Omega ↗