According to the monitoring of the business community, the price trend of domestic phthalic anhydride market rose first and then decreased in May. On the whole, the price trend in May was stable. By the end of the month, the quotation of phthalic anhydride was 6500 yuan / ton, which was the same as that at the beginning of the month, with a year-on-year increase of 30.98%. The price trend of phthalic anhydride in the middle and late May fell, the spot supply was normal, and the market of phthalic anhydride declined.

In May, the overall price trend of phthalic anhydride market was stable. In the first ten days, the price maintained the rising trend in April. However, the market began to fall in the middle and last ten days. The market situation of phthalic anhydride was general, and the downstream demand was normal in the near future. The price trend of o-benzene rose in May, and the plasticizer market rose slightly, which supported the stable price trend of phthalic anhydride market. Domestic phthalic anhydride manufacturers have little change in operation. The operating rate of phthalic anhydride on site is about 60%. The domestic phthalic anhydride spot supply is normal. The price of phthalic anhydride on site has little change. The market of downstream plasticizer industry began to fall in the last ten days, and the actual transaction situation is general. The price trend of phthalic anhydride market in East China is general, and the high-end transactions in the market are limited. In East China, the mainstream of negotiation on the supply of neighboring France is 6400-6600 yuan / ton, and the mainstream of negotiation on the supply of naphthalene method is 6200-6400 yuan / ton; The mainstream quotation of phthalic anhydride market in North China is 6500-6700 yuan / ton. The wait-and-see mentality of phthalic anhydride market still exists, and the downstream is mainly purchased on demand. Recently, the market trend of downstream DOP has fallen, which has affected the price trend of phthalic anhydride market.

In May, the domestic price of o-benzene rose to 6200 yuan / ton, or 5.08%. The domestic price rise of o-benzene is a good support for the phthalic anhydride market. In addition, the import price of o-benzene in the port area maintains a high level, and the external quotation of o-benzene rises. Recently, the inventory of o-benzene in the port area is high, and the external quotation of o-benzene is stable. The actual transaction price is subject to negotiation, The price trend of phthalic anhydride market in May was stable.

In May, the market price of the downstream DOP of phthalic anhydride increased. According to the monitoring of the business community, the domestic DOP price was 13125 yuan / ton by the end of the month, and the price increased by 5.21% in May. The equipment of DOP enterprises in the yard started normal. With the rise of the price of isooctanol, the cost of DOP increased, and the DOP price rose. DOP enterprises started normal, the spot supply was sufficient, and the momentum of DOP rising in the future was weakened. In the future, the cost of DOP decreased, the operating rate of enterprises increased, the support of DOP rise weakened, and the high price caused too much pressure on the cost of downstream products. The downstream customers were more resistant to high price DOP. The transaction price was based on the real-time price, and the overall DOP price was about 12900-13500 yuan / ton. The DOP market rose in May, and the price trend of phthalic anhydride market was temporarily stable.

On the whole, the recent trend of crude oil price is relatively strong. In addition, the downstream plasticizer industry has a downward trend. In addition, the recent trend of o-benzene price is stable. It is expected that the market price of phthalic anhydride will decline slightly in the future.