Vancouver, British Columbia--(Newsfile Corp. - July 13, 2026) - Rokmaster Resources Corp. (TSXV: RKR) (OTCQB: RKMSF) (FSE: 1RR1) ("Rokmaster" or "the Company") is pleased to provide an update on exploration activities on the Mystery Property.
In June, SJ Geophysics completed an Induced Polarization Survey ("IP Survey") over several porphyry Cu-(Mo±Au) targets on the Mystery Property. The IP Survey was a pole-dipole active array capable of investigating chargeability and resistivity down to depths of 300-500 m with the purpose of refining targets planned for drill testing during the fall. (Figure 2).
The southern IP Survey profile, Line 1000, was completed over the B2 and B3 zones. This area features limited outcrop exposures of strongly potassic-altered andesite hosting a dense stockwork of pyrite-chalcopyrite-biotite-magnetite veinlets which have returned elevated copper, molybdenum, and gold in rock sample assays. The IP response shows a strong high chargeability anomaly cored by a strong high resistivity anomaly below and southeast of the B2 Zone (Figure 3).
Approximately 2.5 km to the northeast, IP Line 2000 investigated a coincident soil and magnetic anomaly in the northern portion of the Ford Anomaly area. This area is underlain by rhyolite belonging to the Kasalka Group which displays strong phyllic alteration over a broad area including intense sericite replacement and disseminated pyrite. Hyperspectral work completed in the previous years indicates that higher-temperature paragonite occurs below a certain elevation in the Ford Anomaly area indicating good potential remains at depth. IP Line 2000 outlined a large and broad high chargeability anomaly ~200 m below the western portion of the profile, and a deeper highly resistive feature on the eastern end of the profile (Figure 4).
Another ~1.1 km to the north of the Ford Anomaly, IP Line 3000 tested an area of stockwork quartz veining in sericite- and potassic-altered porphyritic monzonite. This area was discovered last year and Re-Os age dating on the molybdenite mineralization confirmed that it belongs to the productive late Cretaceous Bulkley Intrusive Suite which is related to porphyry systems in the region such as the Huckleberry, Ox, Seel, and Poplar Deposits. IP Line 3000 shows a west-dipping coincident high chargeability and high resistivity anomaly which comes to surface near where the molybdenite mineralization outcrops. Possibly related to line 2000, there is also a deeper highly resistive feature in the eastern portion of the Line 3000 profile (Figure 5).