Calcium carbide market price is still the same, there is no significant change in the country. PVC most the arrival of calcium carbide enterprises, individual to truck more rest to maintain enough or surplus. Calcium carbide enterprises started basically normal, the overall supply is at a high level. Shaanxi district environmental protection inspectors group has little impact on the Yulin area, but it is necessary to observe whether there will be a result of environmental protection procedures, such as temporary parking of calcium carbide furnace.