Adhunik Metaliks has informed the exchanges that Orissa Manganese & Minerals, a wholly owned subsidiary, has been granted extension of lease for its three manganese ore mines (Patmunda, Orahuri and Kusumudhi) till March 31, 2020 under the merchant category. The Patmunda mine has already re-started operations. OMML has requested the government to extend the lease of these mines for a further 10 years under the captive clause.