ECR Minerals Research Report July 2025

Creswick and Tambo Both Creswick and Tambo sit in Victoria’s established gold belts, offering ECR exposure to known mineralised systems with past production. At Creswick, recent bulk sampling and drilling at the Kuboid Hill and Davey Road prospects returned strong grades, including a standout 41.03g/t Au over 1 metre. While exploration has paused in 2025 to prioritise other projects, ECR remains optimistic about the area’s potential. Encouragingly, the company has confirmed receipt of unsolicited interest in Creswick from a third party. Although these discussions have not yet advanced, the contact alone evidences the ongoing high level of interest in the region in which the project is based. ECR’s primary focus at Tambo, meanwhile is the Duke of Cornwall prospect. Historic miners produced high-grade gold here from a largely-unexplored mineralised system – the “Main Lode” – at surface. However, the feature remains unexplored at depth and along strike. Rock chip assays from direct outcrop and exposures around and within the old workings include gold values of up to 22.85g/t, 26.26g/t, and 52.g/t. ECR has since been investigating the potential for this high-grade gold to extend both along strike and at depth. Last year, the company completed a five-hole drill programme that confirmed gold mineralisation continues to at least 70m deep, with highlight intersections including: • DOCD002: 0.4m @ 8.51g/t Au • DOCD004: 0.15m @ 10.6g/t Au • DOCD005: 1m @ 0.72g/t Au These grades align with historical reports of highgrade gold at surface. So, ECR is now designing a follow-up drill programme to test deeper beneath these high-grade zone. Positive results will support ongoing efforts to secure a development partner for the project. Historic gold production around the Creswick project 7

RkJQdWJsaXNoZXIy NTYzMzA=