Orsu Metals explores Sergeevskoe gold project since 2017. The license area starts some 300 m west from the suspended open pit of the Klyuchevskoe gold deposit and 9 km east from the open pit of the Alexandrovskoe gold deposit. In 2017-18, the company drilled some 18,000 m and trenched 6,500 m. In April 2019, Orsu published a maiden 43-101-compliant Inferred mineral resource estimate of 25.09 million tonnes, grading 1.47 g/t gold and containing 1.19 Moz gold at a 0.5 g/t gold cut-off grade, optimized into an open pit and constrained by the license boundary. In 2019 Orsu continued its exploration efforts aiming to expand the mineralized envelope.