The interpretation of PVC industry as the four major initiatives to achieve green development with carbide method based domestic polyvinyl chloride (PVC) industry is in a serious excess capacity, oil prices continued to decline, sluggish downstream demand of the internal and external environment, and under great environmental pressure. Strict access to the industry, strengthening the prevention and control of mercury pollution, and implementing the announcement system of low mercury catalyst production enterprises, strengthening technological innovation and promoting the linkage between the upper and lower reaches have become the four major measures for the industry to achieve green development. This is the reporter from December 11th held in Fuzhou in 2014, the national PVC industry technology year and China Green Development Forum on polyvinyl chloride learned. According to the Chinese chlor alkali industry association responsible person, in recent years, countries in the chlor alkali industry safety, environmental protection, energy consumption, mercury pollution prevention issued a series of standards and norms, put forward new requirements constraints. The association, entrusted by the Ministry of industry and the Ministry of finance, revised the access conditions for the chlor alkali industry to expand its scope of application, covering PVC, caustic soda, methane chloride and PVC paste resin. Access conditions are more stringent, the distribution of enterprises, energy consumption, process equipment scale, environmental protection, safety, occupational health and other requirements have improved. It is reported that the "access conditions" has been revised and completed on the Ministry is expected to release in the first half of next year. At the same time, China Petroleum and chemical industry association and the chlor alkali Association jointly established the low mercury catalyst production enterprise announcement system started, the company has begun to declare. The audited enterprises will be announced to promote the full application of low mercury catalysts in 2015. Participants said that the industrial policy not only raised new requirements for the PVC industry, but also improved the requirements of the stock. The drop in oil prices led to foreign PVC prices down, to export impact, coupled with the enterprises operating rate is not high and the downstream consumer market demand pressures, forced enterprises to implement structural adjustment and transformation and upgrading.