The world’s largest gold mining company Barrick has slashed 65 jobs in Western Australia due to increasing costs and a weaker gold price.

Barrick said 32 positions at its Perth office had been made redundant and 33 jobs would be cut at its ageing Plutonic mine in the state’s mid west.

Perth regional head office employees were advised of the cuts on Wednesday morning, a day after Plutonic administration and operations staff were advised.

“Current economic conditions along with increasing operating costs and a weakening gold price meant the company needed to review and adapt its structure to ensure a sustainable business in today’s market environment,” Barrick said in a statement.

Barrick employs about 270 people at its Perth office and has around 25,000 employees worldwide.

The global mining heavyweight recently undertook a company-wide review to manage its costs.

Further job cut announcements are expected in the coming days at Barrick’s Australia-Pacific operations.

The company has five operations in Western Australia, one in NSW and one in Papua New Guinea.

It comes after Barrick announced on Monday that it will slash 100 jobs at its corporate headquarters in Toronto and 65 positions at its US operations.

Job cuts could also be looming at Kalgoorlie’s Super Pit gold mine which is operated by KCGM, a joint venture project between Barrick and Newmont Mining Corporation.

In a separate statement KCGM confirmed current economic conditions had forced reviews of its operation to improve its cost effectiveness.

“While redundancies have not been part of the current cost review, management has been critically looking at the current organisational structure to determine if removal of some positions is required,” KCGM said in a statement.

KCGM, which employs 880 full time staff and 375 contractors, has been reviewing costs since late 2012 and recently imposed a staff freeze on non-essential recruitment.

The gold price has fallen more than 30 per cent since late 2011.