What is the logic behind the system of 'captive coal mining' (with .Feb 22, 2015 . Captive coal mining means that the coal mined could be used only in the said industry for which the allocation/auction of the block has been.what is captive coal block,What is captive (coal) mining? - QuoraCaptive Coal Mining means the coal which taken out by a company for its own use & it won't be . Tata Steel is restricted to use the coal produced in Captive blocks for its own purpose. It can not sell off this coal in open market to generate cash.
what is captive coal block