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Fast Metals is treating waste with more waste to extract critical minerals

TechCrunchJuly 29, 20263 min read

Aluminum production has saddled the world with billions of tons of caustic waste. One startup has a plan to clean it up and turn a profit.

Aluminum has left an indelible mark on the world — more than 3 billion tons of red mud, a waste product of the refining process, are currently stored in open-air ponds or mounds. But to Sumedh Gostu, co-founder and CEO of Fast Metals, there’s treasure in the caustic waste.…

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