Angkor Resources Corp. has announced results from diamond drill hole AB25-009 at the Thmei North copper target on its Andong Bor mineral exploration license in Cambodia. The drill hole, completed on July 18, 2025, returned copper mineralization over the entire 286.2 metres sampled, with an overall average of 1,309 parts per million copper. Notably, copper grades increased significantly with depth, with the bottom 67.3 metres averaging 2,181 ppm copper, including a 52.6-metre interval grading 2,493 ppm copper.
The geological context reveals important details about the mineralization system. The upper portion of the hole cored a medium-grained diorite to a depth of 244.9 metres, containing small quartz veins with iron and copper minerals. At 244.9 metres, the hole crossed into hornfels, where the number of mineral-bearing veins increased significantly and copper content rose accordingly. The hole ended in mineralization, suggesting the copper-bearing system continues at depth.
Dennis Ouellette, VP Exploration, commented on the significance of these findings. "What is encouraging about this hole is the increase in copper grade as we moved deeper into the hornfels," Ouellette stated. He explained that the contact between the diorite and hornfels is very steep, with mineralized quartz veins following these same structures. The hornfels hosts more veins and higher copper grades, and copper mineralization also occurs within the diorite itself, indicating potential in both rock types.
Ouellette further elaborated on the geological interpretation, describing the deposit as a porphyry copper-related skarn where small bodies of diorite and feldspar porphyry dikes have intruded into highly receptive siltstone and volcaniclastic rocks. The hornfels shows potassic alteration, a strong indicator of being in the right area for copper porphyry systems. Early potassic alteration has been overprinted by later chlorite-sericite and phyllic alteration, an alteration sequence typical of copper porphyry systems, which is the style of deposit the Company is exploring for at Thmei North.
These results have implications for mineral exploration in Cambodia, a country with emerging mineral potential. The Thmei North target is located on relatively flat farmland and is defined by an approximately one-square-kilometre copper soil anomaly. An earlier target, Thmei South, located roughly three kilometres to the south, was the site of a historical diamond drill hole completed in 2016 that also showed promising geology but was never fully sampled.
The Company plans to assist year-five students at the Cambodian Institute of Technology in a study of the historical drill hole, providing additional data on the copper potential of the Thmei area and advancing the education of Cambodia's future geologists. This educational initiative represents a broader commitment to developing local expertise in the resource sector.
A second drill hole, AB25-010, was started on July 20, 2025, but was halted due to the Cambodia-Thailand border conflict in the northwest region. Safety of staff and personnel remains the Company's top priority, and activities on the Andong Bor license are on hold until conditions allow safe resumption. This development highlights the operational challenges that can affect mineral exploration in certain regions.
The technical disclosure in the release was reviewed and approved by Dennis Ouellette, a Qualified Person as defined by National Instrument 43-101. Additional information about the company can be found at https://angkorresources.com. The original release is available at https://www.newmediawire.com.
