It denies the allegations in Tsumeb, saying it invested hundreds of millions of dollars to upgrade the smelter to national and international environmental standards after acquiring it as an ...

While the Madero Smelter is currently operational ... nuclear waste and other environmental cleanup, odor control, gas separation, animal nutrition, and other miscellaneous applications.

Giving aluminium smelters tax incentives to switch to clean energy is long overdue. The question now is how to accelerate the clean energy rollout ...