Expectation of product oil price upgrade tends to be strengthened as crude oil price keeps surging.
Qinghai Salt Lake Potash (000792) lowers ex-factory price of potash fertilizer for quick returns.
Price of nitrogen phosphorus fertilizer might slide further.
Viscose price might keep surging.
Investment suggestion: Investment style tends to be different recently, thus investors are suggested focusing on portfolios like PetroChina (601857), China Petroleum & Chemical (600028), Qinghai Salt Lake Potash (000792), Shandong Helon (000677), etc. Moreover, as sales of automobile is on the rise, investors can pay constant attention to enterprises of auto chemical products including Kingfa Sci. & Tec (600143), Jiangxi Black Cat Carbon Black (002068), etc.