Angkor Resources Corp. (TSXV: ANK | OTCQB: ANKOF) has announced results of an academic study by Kyushu University and the Institute of Technology of Cambodia concluding that the Thmei North target at its Andong Bor licence in northwest Cambodia displays alteration and mineralisation consistent with a copper-molybdenum porphyry system. The study identifies the potassic zone as the primary copper zone and provides exploration guidance for the remaining 1,700 metres of planned drilling. The findings align with previously reported drill results, including a 108-metre interval grading 0.53% copper equivalent in potassic-altered rock. Investors in the junior explorer may watch closely as the company applies the study's alteration model to target placement in early 2027.

Key Points

  • Angkor Resources Corp. (TSXV: ANK | OTCQB: ANKOF) operates the 100.28 square kilometre Andong Bor exploration licence in northwest Cambodia
  • Kyushu University and ITC study confirms porphyry copper-molybdenum alteration characteristics at the Thmei North target
  • Previously reported assay results include 108 metres of 0.53% copper equivalent and 46 metres of 0.51% copper equivalent, both in potassic-altered rock
  • Remaining 1,700 metres of the 2,800-metre Thmei North drill programme is planned for early 2027

Kyushu University Study Identifies Three Alteration Zones and Copper Concentration at Thmei North

The study, led by researchers at Kyushu University's Economic Geology Laboratory in Fukuoka, Japan alongside Cambodia's Institute of Technology, examined drill core from the Thmei North target. It identified three stacked alteration zones typical of copper porphyry systems: a deeper potassic zone representing the primary copper target, an intermediate chlorite-sericite zone that preserves and adds copper mineralisation, and an upper phyllic zone where later acidic fluids appear to have broken down earlier copper minerals. Molybdenite, the principal ore mineral of molybdenum, was confirmed within the copper-bearing potassic zone. The company notes the study is an academic research study and does not constitute an NI 43-101 technical report.

Fluid Inclusion Data and Boiling Evidence Strengthen the Porphyry Interpretation

Researchers measured fluid inclusion temperatures in the main copper-bearing veins at 300 to 415 degrees Celsius and identified evidence of boiling fluids, a process commonly associated with metal deposition in porphyry systems. Microscopic mineral crystals within the stockwork vein fluid inclusions suggest the early fluids were carrying dissolved metal. The study also notes that hornfels — baked sedimentary rock surrounding the diorite — fractures readily and hosts significant veining, confirming both the diorite and hornfels as viable host rocks. The release states these findings are consistent with Angkor's modified copper porphyry exploration model already guiding the Thmei North drill programme.

Historical Drill Results Align With Study's Identified Copper Zones

Angkor's previously reported assay results from Thmei North corroborate the study's conclusions. Drill hole ABDDH16-005 returned a 108-metre interval grading 0.53% copper equivalent from predominantly potassic-altered mudstone, while hole ABDDH16-008 returned a 46-metre interval grading 0.51% copper equivalent in potassic-altered sheeted diorite dykes intruding mudstone. The two holes are 300 metres apart. The company has not established a mineral resource on the Andong Bor licence, and the disclosure explicitly cautions that the study does not address the size, grade, or economic viability of any exploration target.

Remaining 1,700 Metres of Thmei North Drilling Targeted for Early 2027

Following 1,099 metres completed by mid-July 2026, Angkor plans to drill the remaining 1,700 metres of its 2,800-metre Thmei North programme in early 2027, once fields are dry and crops harvested. Holes will continue to be drilled eastward to better intersect NNW-striking, steeply west-dipping mineralised structures identified in 2025 drilling. The alteration model from the Kyushu University study will be used to guide hole placement through the phyllic zone to test the potassic and chlorite-sericite zones at depth. The release also confirms that activity at Thmei South will continue in 2027.