Sunstone Metals Ltd. announce the discovery from drilling undertaken in December 2022 of a well mineralised gold-copper porphyry system at the Limon target within the Bramaderos project in southern Ecuador. The Limon target area is located 2.7km north-east of the Brama-Alba gold-copper deposit, which hosts a porphyry Resource of 2.7Moz AuEq. This discovery reinforces the concept of multiple gold-copper porphyry systems within the 50km2 Bramaderos concession and highlights the potential for significant growth of mineral resources at higher grades.

The scale of the Limon alteration system and coherency of geochemical anomalism suggests a large and/or multiple porphyry centers within and below the 1.5 x 1km area of surface alteration. On this basis exploration at Limon is progressing on 3 fronts: Current drilling on the high sulphidation targets located in the NE portion of Limon. This is following up previous drilling that returned 15.4m at 0.10g/t gold, 0.42% copper, and 2.3g/t silver from 57.8m in LMDD004, and 128m at 0.18 g/t gold from 3.5m in LMDD006.

Planning for follow-up to hole LMDD010. Modelling of magnetics are suggesting a 300m plunge to a magnetic body that is likely related to the porphyry mineralisation. The magnetic body measures 100m x 100m x 300m and is connected to a larger magnetic feature at depth.

Drill hole LMDD011 has been completed and intersected an intrusive breccia and marks the underside margin of the SW plunging target zone. Preparation for deeper drilling based on geological interpretations of a significant porphyry target, and as follow up to previous drilling that included results such as; 14m at 0.10g/t gold, 0.20% copper 0.4ppm molybdenum, and 1.7g/t silver in LMDD002 from 879.6m; 40m at 0.10g/t gold, 0.12% copper, and 19.4ppm molybdenum from 863.5m in LMDD004; and 21.8m at 0.11g/t gold, 0.12% copper, and 3.8g/t silver from 700m in LMDD007. The Bramaderos project straddles the Pan American highway, and is close to available hydroelectric power, supporting the economics of potential development opportunities.

Ecuador sources 88% of its power from hydroelectricity and is ideally placed to participate in the global demand for clean energy sourced metals. The project is also supported by nearby commercial airports and significant cities (Loja, population 200,000) and has strong community support. At El Palmar, drilling of the first hole on the T5 target has just been competed, and the drill rig is now being mobilised to test the Tituana epithermal prospect while we await assays from drilling at T2 and T5.