SMRTR Science & EngineeringSep 7, 2026Interesting Engineering

World-first plant in China turns 5.56 million tons of mine waste into iron each year

SMRTR summary

China has launched the world's largest iron ore magnetization roasting facility in Anshan, capable of processing 5.56 million tons of mine waste per year. The plant converts ultra-low-grade tailings with just 11% iron into high-grade concentrate at 65% iron, using 35% less energy than existing technologies. This could reduce China's dependence on foreign iron ore, which currently supplies over 80% of its needs.

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