Gold Resource reports high-grade H1 drilling at Three Sisters; signs Cominvi development contract

GOLD RESOURCE CORP

H1 2025: 51 drill holes (6,615m) at Three Sisters system; two new veins modelled, total now 12.
Highlight intercept: Sandy 5 vein graded $1,665/t NSR over 4.83m (23.73 g/t AuEq).
Executed mining contract with Cominvi on July 23 to accelerate Three Sisters access; 1,350m development completed since May.
Introducing cut-and-fill mining to reduce dilution; ordered third dry stack filter press to boost throughput.

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