JOHANNESBURG—China is spending billions of dollars buying copper and rights to mine and process the metal—one of the world’s most important critical minerals—especially in Africa, where it has a strong presence. Beijing is making these moves, say mining
JOHANNESBURG—China is spending billions of dollars buying copper and rights to mine and process the metal—one of the world’s most important critical minerals—especially in Africa, where it has a strong presence. Beijing is making these moves, say mining