Ann: MoU for Supply of Briquettes , page-76

Chinas war on pollution will clearly focus on NOx and SOx reductions in the medium term already. Burning upgraded subbituminous coal with improved environmental characteristics and higher calorific value could be one part of the overall solution.

China aims to launch pollution permit market within 3 years

http://in.reuters.com/article/2014/03/24/china-pollution-idINL4N0ML1OU20140324

Likely the market for simple low rank coal gets very difficult in the foreseeable future.