Metminco Limited announced that it has commenced diamond exploration drilling on its Tesorito gold prospect in the Quinchia district, Colombia. The company's current 1,500 metre diamond drilling program, is designed to confirm and expand the gold mineral system previously intersected in drilling by a previous operator. This included hole TS_DH_02 which reported 384m @ 1.1g/t Au from surface to end-of-hole. The program will also test a previously undrilled geophysical anomaly located approximately 300m to the northwest of TS_DH_02. Assay results from the diamond drilling at Tesorito are expected in August 2018.