According to the company site, it had recorded net sales of Rs 6,500 crore and an export turnover of Rs 2,569 crore in 2011-12.
Besides, despite delay in renewal of mining lease, the company has achieved the highest-ever bauxite production of 54.19 lakh tonnes, against the previous best of 50.03 lakh tonnes achieved in previous fiscal.
At the same time, Nalcos Alumina Refinery has produced 18.02 lakh tonnes of alumina hydrate, which is an all-time record against the previous best of 16.87 lakh tonnes achieved in 2011-12.
However, during the year, the metal production of the company slumped marginally from 4.13 lakh tonnes to 4.03 lakh tonnes, due to planned shutdown of pot shells of the smelter.
"Besides coal shortage, the dwindling LME prices of metal, forced the company to cut down its production of metal to some extent," said Nalco CMD Ansuman Das.
"It was not commercially viable to produce more metal using expensive imported coal," said Das adding the net power generation by the companys Captive Power Plant was 6,076 million units during the fiscal.
Moreover, during the year, the company sold 983,191 tonnes of alumina hydrate against 842,396 tonnes in 2011-12.
Aluminium export by the company also increased to 144,161 tonnes this year from 98,399 tonnes achieved in the last financial year.