This includes 0.73 million tonnes of measured resource and 1.65 million tonnes in the indicated category.
Drilling proved all of the seven coal seams within the concession area to be mineable, confirming the potential for a minimum of five years of production at ADK at the target rate of 50,000 tonnes per month.
The coal seams range in thickness from 2 metres to 24m.
Analysis confirmed a highly saleable run-of-mine coal suitable for the domestic, Indian and Chinese power station markets.
The JORC resource is based on 24 exploration core holes drilled by the company and 29 historical exploration holes drilled over the existing mining area of approximately 100 hectares.
Orpheus expects the resource to grow once drilling occurs over the balance of the tenement area. It also is looking for possible acquisitions of areas to the south and east of the concession.
Orpheus Executive Chairman Wayne Mitchell said the company was pleased with the result.
“The ADK project is currently producing with favourable mining properties and has existing infrastructure in place, thus the resource report confirming our tonnage for entering into longer-term offtake agreements with end-users for the next five years is particularly encouraging,” he said.
“Orpheus is focused on increasing its production profile in the South Kalimantan area and the company intends to grow its capacity out of this area through progressively proving up resources as the projects are developed.”