thiswide for the union to supply largest proportion possible of its coal requirements from domestic production obviously a competitive based streamline in coal extraction and 
This is why it is important for the Union to supply the largest proportion possible of its coal requirements from domestic production, obviously at a competitive price, based on streamlining the coal extraction and processing procedure.
This why it for the Union to supply largest proportion possible of its coal requirements from domestic production, obviously a competitive based streamlining coal extraction and processing procedure.