Kencana Underground Mine Indonesia

Halmahera island, North Maluku

Nearest Town
Sidangoli, North Maluku

Newcrest Mining


Contract Duration
2006 - 2010

Mechanised Lateral Development and Production Activities, Shaft Sinking, Fleet Maintenance and Workforce Training

The project was located on Halmahera Island, in the North Maluku Province of the Republic of Indonesia, approximately 2,450km north east of the national capital, Jakarta.

In 2006, Byrnecut and PT Newcrest Halmahera established an alliance agreement to undertake the mining activities at the Kencana Underground Mine in 2006.

Kencana is on Halmahera Island, in the North Maluku Province of Indonesia, approximately 2,450km north-east of Jakarta.

Byrnecut’s scope of works included portal construction, decline and lateral development, shaft sinking, production drilling, charging, and haulage. We also undertook the maintenance of the mining fleet.

The mining method was predominately underhand cut and fill using paste fill, achieving 500,000 tonnes per year.

Byrnecut’s commitment to safety and training allowed for education and up-skilling of a competent Indonesian workforce while plans were put in place for a client takeover of operations once a steady-state was achieved.

We continue our involvement in Indonesia, maintaining an ability to employ highly skilled Indonesians at other Byrnecut projects around the world, including in Saudi Arabia and Mali.

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