The PVC futures index is the PVC futures index. PVC futures were listed on Dalian Commodity Exchange on May 25th, 2009, with the trading code V, and the delivery places were mainly in South China and Central China. Polyvinyl chloride (PVC) is a thermoplastic resin. Known as the four basic building materials together with steel, wood and cement, it is an important organic synthetic material in China. It belongs to the synthetic resin in the three major synthetic materials. Together with PP, PE, ABS and PS, it is called the five general resins, and it is the product with the largest consumption of organic chlorine in chlor-alkali industry.

The high price difference of PVC appears in April-May and August-September every year. At that time, the price was just in the upward stage, because April, especially April-May, coincided with the overhaul of large factories in Asia, the supply was tight, and orders gradually increased. Downstream enterprises generally accumulate a certain demand, but when the supply is less than the demand, the price will go up. September-10, the price will be in a stable stage. When it enters the high temperature from July to September, the operating rate will decrease. For example, the whole export orders in East China and South China markets have also started to be produced on a large scale, and the downstream demand will increase. At this stage, supply is less than demand, so the annual price peak appears in August and September. At the end of August last year, the price of 8900 or even 9200 yuan came out, and then it began to decrease. On September-10, the calcium carbide plant began to be overhauled, but because the demand began to decrease, especially on February-10/2, the construction-related industries began to stop working and the price went up. This is the law of PVC price for one year.

The delivery place of PVC is mainly limited to South China and Central China. Guangdong Province is the main warehouse in South China, Guangzhou and Foshan are the main warehouses, and Ningbo, Shanghai, Hangzhou, Changzhou and Suzhou are the main delivery warehouses. Guangdong accounts for about 27% of the total consumption, and these four provinces and cities account for about 50% of the total consumption. The price of the whole Guangdong Plastic Exchange is very recognized by everyone in the spot market, and the plastic index is very wide. The price in Guangdong is representative. We also use GS model (econometric statistics) to analyze and find that the prices in Guangdong and South China actually dominate the national price and have a leading influence on the markets in East China and North China.

The standard PVC product is SG5 first-class product, and its quality standard conforms to the national standard "Suspension Universal PVC Resin (GB/T 576 1-2006)". Superior products are allowed to be delivered as substitutes, and there is no grade premium between superior products and first-class products. SG5 is the most common type of PVC, and SG5 is the national standard, which is mainly applicable to calcium carbide process. 50% of the domestic market uses calcium carbide machines, but in fact, we don't distinguish between ethylene materials and calcium carbide machines in the whole process, and ethylene materials can still be delivered. It does not distinguish between ethylene and calcium carbide. If it is imported and there is no recommended brand, the quality can fully meet our delivery requirements. It also needs to be inspected by a quality inspection agency of CCIC and SCS, and it can only be delivered after passing the inspection.