BATU HIJAUSUMBAWA, INDONESIA

Client: PT AMNT Location: Sumbawa, Indonesia

Value: US$2.9 billion over 14 years Start date: August 2017 End date: Life of mine (LOM)

Scope of work:• Earthmoving• Mining services

The ProjectMacmahon has been awarded a life of mine, alliance style mining services contract at the Batu Hijau Mine in Indonesia.

Batu Hijau is a large open pit, owner mined, porphyry copper gold deposit located on Sumbawa Island in Indonesia. It is the second largest copper gold mine in the country.

The site includes a 120 ktpd processing plant, 112 MW coal fired power plant, Benete Port and town site.

PT AMNT’s mine plan includes removal of waste to access the next stage of ore reserves with the processing of stockpiles thereafter.

This is a transformational alliance contract for a Tier 1 asset with expected revenue of US$1.8 billion over 5 years.

Macmahon commenced works in August 2017 with a ramp up of operations in the second half of the 2018 financial year.

The project has the potential to extend the scope of works to include significant development options in the future.

BATU HIJAUSUMBAWA, INDONESIA

SAFETY | TEAMWORK | PROSPERITY | INTEGRITY | ENVIRONMENT