Metal Bulletin’s copper concentrates index was calculated at $81.30 per tonne and 8.13 cents per lb on Friday July 14, slightly changed from $81.8/8.18 cents on June 30.
Several small-to-medium size copper mines are experiencing fresh supply disruptions, and some market participants reported slight delays to scheduled shipments from Chile because of strong wintery winds on the sea.
Workers at Antofagasta’s 100,000 tpy Zaldivar mine in Chile are holding government-mediated talks with the company. A strike could take place if no agreement is reached until July 20.
Zaldívar is more focused on SX-EW cathode production than concentrates.
Meanwhile, a potential strike at the larger (180,000 tpy) Centinela mine in Chile was avoided after the miner and supervisors reached a deal on Friday July 14.