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Red River Resources to hit Hillgrove gold restart button in 2020

The recently acquired high-grade Hillgrove Gold-Antimony Project in NSW will provide Red River with a multi-asset operating business focused on base and precious metals.

Red River Resources Limited - Red River Resources to hit Hillgrove gold restart button in 2020
Samples from Bakers Creek Waste Dump have returned a weighted average grade of 2.5 g/t gold

Red River Resources Limited (ASX:RVR) is preparing to restart production at its recently acquired Hillgrove Gold Project in New South Wales this year.

Metallurgical test work demonstrates the viability of treating Bakers Creek Waste Dump material through the existing mill with total gold recovery to saleable gold doré produced onsite estimated to be 75-80%.

Red River plans to restart production in 2020 using this infrastructure to take advantage of current high gold prices.

“Production before the end of 2020”

The company’s managing director Mel Palancian said: “These results from Hillgrove show we can restart gold production from existing onsite material.

“Having only acquired Hillgrove in August 2019, we are pleased that results to date have validated our strategy to expand our operations and we are progressing our plans to restart Hillgrove production before the end of 2020.”

Conceptual flowsheet

Using existing infrastructure, Red River will load and truck material from Bakers Creek Waste Dump 4.2 kilometres to the Hillgrove Mill, where it will be crushed and ground.

A new gravity gold concentrator will be installed in the grinding circuit with around 60-65% of gold contained in the feed material to report to the gravity concentrate.

The remaining material will be treated through the existing flotation circuit to produce a flotation concentrate.

Based on the test work results, Red River estimates that a further 20-25% of gold contained in the feed material will report to the flotation concentrate.

Maximising gold recovery

Total gold recovery to the combined gravity and flotation concentrates is estimated at about 80-90%.

The gravity gold concentrate and flotation gold concentrate will then be leached on site using cyanide to produce saleable gold doré.

The total gold recovery (of gold contained in the feed material) to a saleable gold doré is estimated to be 75-80% of the contained gold in the Bakers Creek Waste Dump feed material.

Red River is also investigating the potential of an intensive cyanide leach circuit to maximise the gold recovery from the gravity gold concentrate.

The company expects to have restarted production at Hillgrove gold by the end of the year.

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