The Didipio mine in the Philippines is expected to produce between 100,000 and 120,000 ounces of gold in 2015, with copper production at the same site expected to sit between 21,000 and 23,000 tonnes.

This is compared with the 2014 guidance for the site, which predicted between 85,000 and 95,000oz gold and 21,000-24,000t copper.

Anticipated gold production from the company's consolidated New Zealand operations (195,000-215,000oz) is in a similar range to projected production for 2014 — which was 190,000-210,000oz.

The total production guidance is between 295,000 and 335,000oz gold and 21,000-23,000t copper in 2015 —compared with the 275,000 to 305,000oz and 21,000-24,000t predicted for the current year.

Cash costs at the operations are expected to be between $US450 and $530 per ounce ($400-450/oz in 2014), with all in sustained costs (ASIC) from $770-840/oz ($750-850/oz in 2014).

OceanaGold chief executive and managing director Mick Wilkes said the company would go from strength-to-strength in terms of production next year.

"After another strong year of production performance in 2014, we expect to continue delivering significant value to our shareholders in 2015 through increased gold production from our high-quality Didipio operation and from improved margins in New Zealand, where the zero-cost dollar hedges have ensured a meaningful cash margin despite the current weak gold price," he said.

The company also estimated its capital expenditure at around $100 million across its operations — $33 million in New Zealand and $63 million at Didipio, with a further $4 million in exploration in the Philippines. $62 million of the total budget is included in the ASIC figures.

Another $23 million of the budget for Didipio is set aside for underground development, with $10 million for power grid connection.

"2015 will be another significant year for the company as we commence development of the underground decline at Didipio which will enable access to the very high grade core at the ore body earlier in the mine plan. Additionally, the power grid connection at Didipio will further reduce our operating costs by the end of the year," Wilkes said.

OceanaGold operates New Zealand's largest gold mine — the Macraes gold mine — and the Reefton goldfields on the south island of New Zealand, as well as the Didipio mine, where production began in 2013.

Shares in OceanaGold were unchanged this morning at $A2.08.