Industrial recycling

In the industrial sector, the disposal of waste aluminum tests the precision of resource recycling. In Zhangyan town of Jinshan district, CSMET, a new materials enterprise, is turning to innovative technologies to solve the problem of industrial solid waste, transforming waste aluminum into raw materials that support high-end manufacturing.

Household waste aluminum such as beverage cans and lipstick tubes, along with industrial solid waste like aluminum shavings and scrapped aluminum castings, are being processed into aluminum alloys.

"We practice the concept of 'solid waste in, resources out', turning waste aluminum into new resources," said Chen Nan, vice-president of the company. The enterprise recycles approximately 130,000 tons of waste aluminum annually. Through pretreatment processes like spectral sorting and paint stripping, it categorizes and recycles according to aluminum alloy grades, achieving end-to-end closed-loop utilization.

"Recycled beverage cans are processed and remade into new cans, truly maximizing resource recycling," Chen said, adding that since its inception in 2009, the enterprise has cumulatively reduced carbon emissions in the supply chain by 36 million tons.

CSMET is not simply remelting waste aluminum, but developing new low-carbon aluminum alloys based on recycled aluminum. This upgrades waste aluminum into materials needed for components such as automotive bodies while maintaining the performance of primary aluminum.