Calcium carbide materials: 

Recently, leading producer for coal began to increase production, but due to cost of safety considerations, the overall market increasing volume is still limited. Currently some of the coal miners have certain quantity of storage, the coal supply shortage eased, coal prices rise slowed down. But the trucks loading have restrictions, trucks costs continue to rise, trucks quantity relatively getting fewer.

 At the same time, the railway freight also getting higher, and several routes in October for maintenance. It is estimated that coal prices are steady rise, transportation cost also increasing. Which all caused carbide exporting cost keeps at higher side.