Newcrest Mining Ltd. declared force majeure on the supply of copper concentrates from the Cadia gold-copper mine in New South Wales, Australia, Metal Bulletin reported March 14, citing two sources.
The miner was forced to halt operations at the site following a tailings dam breach March 9. It later said the incident could "adversely impact" its 2018 guidance.
Newcrest notified its customers that it could not guarantee contractual supply of the concentrates, the sources said.
A company spokesman declined the publication's requests for comment.
