The second largest coal miner in the US, Arch Coal, on Thursday announced that it had started work on a new three-million-ton-a-year coking coal mine that will operate on the same 200-million-ton reserve base as its Leer operation, in West Virginia.
The NYSE-listed company would invest between $360-million and $390- million over the next three years to develop the Leer South mine, with the longwall scheduled to start up in late 2021.