Transportation of copper-gold concentrate from its Didipio Mine in Luzon has been temporarily suspended.
Strong gold production expected from Macraes gold mine near Dunedin next year.
The latest rise means shares in the gold miner have risen 77% in the last three months.
Sign up for NBR subscriber content or email alerts
The easiest way for subscribers to stay logged in is to click the "Remember Me" option on the Member Log In box on the top right of this page.