According to Business Standard, the aim is to source 70% of coal from Kolkata-based Coal India, the remaining 20% from the firm eight captive mines, and about 10% from imports which include the production from acquired mines abroad. The company’s captive mines have a reserve of 1.8 billion metric tons (mt). The company’s coal requirement for the financial year 2011-12 would be around 160 million mt, which is expected to grow to 240 million mt in the next year.