Chinese state and private investors have spent more than $16 billion over the last decade buying copper mines and projects including nearly 50 in Africa.
A large lead and zinc deposit, allegedly China's largest, has been discovered in northwest China's Xinjiang Uygur Autonomous Region, local authorities announced on Sunday.
Prices for the steel-making ingredient are down by 9.8% over a month ago and most of the massive projects expected to come on stream this year are not producing at full steam yet.