Chile’s copper output drops 12.9%, raising supply concerns China manufacturing PMI offers support, high US interest rates weigh Base metals on the London Metal Exchange (LME) traded mostly higher on 30 June 2026, with zinc leading gains, rising 2.22% d-o-d to $3,552/t, followed by copper, which advanced 0.72% to $13,375/t. Aluminium and nickel edged lower…