NEB & BC
NEB is the main discovery within the Bankan Gold Project licence area and BC is a satellite discovery 3km to the west of NEB. These two deposits combined make up the current Mineral Resource estimate of 100.5Mt @ 1.66g/t for 5.38Moz of gold (including 4.14Moz indicated), positioning the Bankan Project as the largest gold discovery in West Africa in more than a decade.

The current NEB estimate includes an Open Pit Mineral Resource reported at a 0.5g/t cut-off grade within a US$1,800/oz optimised resource pit shell, which totals 81.4Mt @ 1.53g/t for 3.99Moz of gold and includes 98% or 3.90Moz in the Indicated category. A high-grade Underground Mineral Resource reported at a 2.0g/t cut-off is present below the resource pit shell, which totals 6.8Mt @ 4.07g/t for 896Koz of gold (Inferred).
There is potential to grow the NEB Open Pit Mineral Resource through targeted drilling of additional high-grade shoots within the resource pit shell, and at the Gbenbeden resource pit shell immediately north of the main NEB deposit. The NEB Underground Mineral Resource is open at depth. There is also potential to incrementally expand the current underground resource along strike to the south, and for additional underground mineralisation in footwall structures.
The BC Mineral Resource is reported at a 0.4g/t Au cut-off grade within a US$1,800/oz optimised resource pit shell, totalling 12.2Mt @ 1.24g/t for 487Koz of gold and includes 50% or 244Koz in the Indicated category. This represents a 47% increase following a successful infill and extension drilling campaign based on the re-interpreted mineralisation model. The BC deposit remains open down plunge to the south-west, and along strike to the south.
Initial metallurgical test work has indicated that gold mineralisation within the Bankan Project deposits has straightforward and simple metallurgy. Test work has been completed on the high-grade zone in the lower area of the current pit shell with an average recovery of 92.8%. Two sample streams have been tested, firstly Gravity concentrated then selected random sample tails leached. All the samples tested completed leaching within 24 hours for an average recovery of 94%. Secondly, complete sample leach testing, target grind of p80 passing 75 microns, leaching times with 69 sample leach kinetics indicating completion within 48 hours. The gold mineralisation has been confirmed as free-milling with high gold recoveries and amenable to a simple, industry-standard processing, which is highly encouraging for PDI.
The NEB and BC deposits sit in buffer zone 2 of the Upper Niger National Park, approximately 21km and 18km away from the core conservation zone. PDI has initiated an extensive ESG program, which includes completing an Environmental & Social Impact Assessment, with the support of globally recognised external consultants to establish a baseline understanding of the regional environment and develop plans to sustainably manage potential future mining operations.
A PFS is also underway at the Bankan Project, which is scheduled for completion in Q1 2024.