The raw materials for the production of ethylene based PVC are ethylene, chlorine gas, etc. The cost of ethylene accounts for about 65% of the cost of ethylene based PVC. Therefore, the cost of ethylene based PVC production mainly depends on the price of crude oil. It is generally believed that ethylene based resin is superior to calcium carbide based resin. Ethylene based resin is mainly used for high-end PVC plastic products