MinRex Resources Limited announced the commencement of RC drilling at the Sisters Lithium-Tin-Tantalum Project near Marble Bar. The first phase of drilling will incorporate 18 RC drillholes totalling approximately 2,500m. The Sisters Project is situated 1.75km east of Global Lithium Ltd. Archer Lithium Deposit, which hosts 10.5Mt @ 1.0% Li2O.

The project hosts the same greenstone belt as the Archer Deposit. Reconnaissance concentrated on the identification of outcropping lithium rich pegmatites in areas between the greenstone belt and the Homeward Granite contact. Extensive pegmatites were delineated within granite-greenstone "goldilocks zone ".

These zones are typical of all major lithium deposits in the Pilbara region of Western Australia. Two zones of spodumene rich pegmatites were located in the southern zone of E45/5871 striking in a north-south direction with the greenstone lithology. This lithium rich zone is approximately 500m in length by 250m in width.

These pegmatites are striking between 200 and 550 with individual pegmatites ranging from 50m to 300m in length. Some of the pegmatites range from 0.5m to 3.5m in width with some lepidolite pegmatite dykes trending the same orientation as the main pegmatites. On the 2 August 2022, the Company announced the high-grade rock chip sample results, which yielded 3.42% Li2O, 1.59% Li, 105 ppm Cs, 80 ppm Ta, 120 ppm Nb, 130 ppm Sn, 1,980 ppm Rb from the stacked pegmatites.

Drilling has concentrated around the newly identified lithium-rich pegmatites.