Bor, Serbia – Milica Mladenović, a senior geologist at Serbia Zijin Copper, never thought her life would change so much for the better after Zijin invested in Serbia’s Bor Copper Complex and became its operator in 2018.   The copper mining complex was once the economic backbone of Bor, an old mining town. But by late 2018, after years of losses, the operation’s workforce’s dropped from the peak of...