Galena Mining Limited announced that the construction progress at its Abra Base Metals Mine ("Abra" or the "Project") has reached 67% complete as at 31 May 2022. Construction achievements during the month include setting up to commence underground drilling and significant progress with solar farm installation and the remaining surface infrastructure. Update on Abra Project progress: Overall progress continues to remain in line with the project schedule for the production critical areas of mining and processing.

The processing plant engineering, procurement and construction has reached 72% complete by project spend. Underground mine development has reached the 1,368mRL, which is 182m below the surface and only 55m above the orebody. Total underground development achieved in May was 172m.

The lower progress in underground development during May is offset by earlier achievements being ahead of schedule. Overall underground development remains on plan as at the end of May. During May the second leg of the primary ventilation shaft (6m diameter raise drill hole) was drilled between the 1,400mRL and the 1,467mRL.

The installation of the primary vent fan on the surface is now planned to be completed in June, which will enable the secondary fans to be moved down from the surface box-cut. Mono pumps have been installed at the 1,390mRL level to assist with water and pumping management. Underground drilling has commenced in early June, which will provide detailed grade control information well ahead of ore production.

In surface bulk earthworks, the work for the building of the tailing's storage facility ("TSF") has been awarded and the contractor has commenced mobilisation to site. TSF wall construction has commenced in early June. The final works package associated with the remaining non-processing infrastructure is progressing quickly.

This work is not production critical, although it is expected to be completed well in advance of commissioning. This includes the remaining buildings and the drill-core processing and storage facility. Owners' costs and contingencies remain under budget.

Abra has been advised of revised delivery times for some of the overseas equipment supply for the processing plant. As is the nature of international shipping, delivery dates continue to be revised. None of these delivery time changes are expected to cause any overall construction schedule delays at this stage.

Based on the latest information the cone crushers, grinding package lot 3A and lot 4 have revised arrival dates. Lot 3A has departed Singapore and is due in Fremantle on the 16 June. Lot 3B which contains the mill heads, shells and liners is still located in the Shanghai port and is scheduled to leave Shanghai on the 16th June in a Breakbulk vessel which is sailing directly to Australia and is expected to be in Fremantle by the 11 July.

GR Engineering continues to work on the timing of the remaining equipment deliveries and update their work schedules and plans. The mill installation had a 3-month timeframe buffer in the original schedule, which is why the current delivery adjustments are not causing potential construction delay concerns relating to the grinding section of the plant.