Pacific Ridge Exploration Ltd. announced that drilling is underway at the RDP copper-gold project (RDP or the Project), located in northcentral British Columbia, 40 km west of the Company's Kliyul copper-gold project (Kliyul). Antofagasta Minerals S.A., a wholly owned subsidiary of Antofagasta PLC, can earn a 75% interest in RDP by spending $10,000,000 on exploration over eight years and delivering a preliminary economic assessment report. The Company has completed one drill hole (RDP-23-07) of the planned 1,800 m diamond drill program so far.

RDP-23-07 is a 300 m eastern step out from drill hole RDP-22-005, which intersected 107.2 m of 1.45% CuEq1 (0.63% Cu, 1.10 g/t Au, and 2.91 g/t Ag) within 497.2 m of 0.68% CuEq1 (0.37% Cu, 0.40 g/t Au, and 1.6 g/t Ag) at the Day Target in 2022. The surface geochemical grid sampling (rocks and soils) and Induced Polarization (IP) geophysical survey program is complete and focused on the Bird and Porcupine targets; an IP geophysical survey was also completed over Day. In total, 45 rock samples were collected over an 800 x 600 m area at Porcupine, 345 soil samples collected at 50 m spacing in 12 lines (100 m line-spacing) at Bird and Porcupine, five IP survey lines (9.2 line-kilometres) completed over Bird and Porcupine, and three IP survey lines (4.4 line-kilometres) completing over Day.