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The Mandiri Project

Mandiri – a licensed concession covering an area of 2,032 hectares near Kuala Kurun City in the Gunung Mas Regency of Central Kalimantan, Indonesia – is devoted to the exploration of mineral sands products and the production and export of premium 65.5 grade zircon.

Mandiri : the world’s 5th largest producing zircon mine

In March 2019, Mandiri’s Inferred Mineral Resources were evaluated at 126 Mt (with 7.43% heavy minerals) within an area of 1,100 ha. As per these findings, Mandiri’s heavy minerals inferred resources exceed 9.4 Mt, inclusive of 6.0 Mt of zircon inferred resources. With a zircon content of 64%, Mandiri’s heavy minerals have best-in-class assemblage value compared to all our peers.

The world’s largest zircon discovery since 2012 and 5th biggest producing zircon mine globally, the Mandiri tenement still offers substantial upside as only 46% of its area has been explored, and it is still possible to define additional resources below the water table within the area where existing resources have been defined.

With a zircon content of 64%, Mandiri’s heavy mineral have best-in-class assemblage value compared to all our peers

Mineral Resources

ABOVE 2% HM LOWER BLOCK CUT-OFF GRADE (UNROUNDED)

Mandiri:
more to come

Mandiri produced more than 11,000 Mt of zircon since it began operating in August 2015. With a current capacity of 1,500 tons per month (18,000 tpa), it has been mostly producing 65.5 grade zircon, a premium product.

Mandiri uses a standard wet concentration process to separate valuable heavy mineral sands from other components to produce a high-grade heavy mineral concentrate, applying a gravity circuit to separate the Valuable Heavy Mineral Sands from the non-valuable and lighter gangue making up most of the input slurry.

We expect Mandiri’s production capacity to reach 4,000 tpm within 5 years.

Further exploration potential remains substantial as 46% of the concession area remains to be explored while we can still define additional resources below the water table within the area where existing resources have been defined.

Assemblage of Ore and Finished Products

Mandiri’s alluvium bed deposits allows for low complexity, open pit mining, a method that can deliver higher cash margins, while minimising environmental impact.

Linked by a paved road to the town of Palangka Raya, Mandiri is conveniently connected to the local electricity grid.

In addition, both the mine and the factory are located alongside the Cahayan river, which further helps to lower logistic costs.

The factory is also located in proximity to Benjamasin port, and the airport in Gunung Mas.

Mandiri:
convenient,
cost-effective and
sustainable

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