Zambia copper concentrate duty to disrupt global copper supplies – sources

A plan by Zambia to put a duty on copper concentrates imports could put a kink in the global supply chain for the metal, industry sources said, by forcing neighbouring Democratic Republic of Congo (DRC) to send surplus mine output elsewhere. The 7.5% duty announced earlier this month and due to come into force at the start of 2017, is likely to disrupt supply of refined metal in the early part of the year, just as the global market moves away from surplus, helping to support prices.