Hindustan Copper Ltd (HCL), a state-owned Miniratna under the Ministry of Mines, is set to diversify beyond copper by bidding for blocks of critical minerals and rare earth elements (REEs), both domestically and internationally. The company is pursuing strategic partnerships with fellow public sector undertakings (PSUs) including Indian Oil Corporation, GAIL (India), and RITES Ltd. It also plans international collaborations with Coal India for exploration activities in Chile.