White House National Security Adviser Jake Sullivan said that countries will find ways to reduce dependencies if China controls the exports of gallium and germanium.
A review of the mining code in January had shown that Mali, one of Africa's biggest gold producers, was not receiving a fair share of profits while granting too many tax breaks.
Now that Chile has passed an increase in mining royalties, copper miners are pushing for incentives to keep investing in production of the metal needed for the renewable energy revolution.