Far East continues to progress its 1.15Moz Wonogiri project in Indonesia towards development with the receipt of promising metallurgical results and emissions compliance approval.

The receipt of the necessary environmental technical approval for air emissions associated with the development and operation of the proposed mine by the Ministry of Environment and Forestry is a significant milestone for advancing the porphyry deposit through the remaining environment permitting process.

This will in turn enable an upgrade of the project’s exploration permit (IUP Explorasi) to an operation and production permit (IUP OP), which will permit its development and operation.

Far East Gold (ASX:FEG) adds that recent metallurgical test work on epithermal type quartz has shown high gold recoveries of 96% thanks in large part to high gravity gold extraction of 75%.

This compares with previous carbon-in-leach processing that returned overall gold recoveries to between 90% and 91% with the gravity concentrator extracting up to 51% of the gold.

Importantly, this indicates that most of the gold contained within epithermal type mineralisation can be recovered efficiently, which should improve cash flows and lower operational cost due, in part, to lowering reagent requirements.

It also supports the company’s environmental policies, underscoring its belief that Wonogiri is a leading project for both production and ESG.

The test work will be included in the Scoping Study update that is being carried out by Mining One consultants.

Approval imminent

With the receipt of the air emissions approval, Far East only has one remaining technical approval required – the Toxic and Hazardous Waste Management Technical Approval – to secure the environmental green light for Wonogiri.

Application for this remaining approval is well advanced with the company having completed the necessary geotechnical, hydrogeological and hydrology studies.

Meanwhile, the TCLP testing, filter testing, total pollutant concentration and radioactive contamination tests required for this final technical approval are all well progressed.

The company is also evaluating final proposals for the mine infrastructure and processing plant layouts.

This article was developed in collaboration with Far East Gold, a Stockhead advertiser at the time of publishing.

This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.