OMC has shown consistency in the production of ore and ore concentrate over the last 5 years. The production of iron ore has increased substantially from 34 lakh tonnes in 2005-06 to about 8 million tonnes in 2008-09. Similarly the production of chrome ore and chrome concentrate has been fairly consistent in the last 5 years.

At the present rate, OMC is producing about 10 % of total iron ore production of the State and about 30 % of the total chrome ore production of the State. Presently Daitari, Gandhamardan and Kurmitar (Khandadhar) are the major Iron ore Mines of OMC whereas South Kaliapani is the main Chrome ore Mine of OMC. Bangur Chrome ore Mine is the first and only underground mine of OMC.

Detailed information about the mine-wise production for the last 5 years is given below: