Dongwu Securities released a research report on April 22 stating that it gave Hengyi Petrochemical (000703.SZ) a purchase rating. The main reasons for the rating include: 1) the first phase of technical reforms in Brunei affected performance, and refining and chemical profits declined year on year; 2) polyester production and sales increased year on year, and industry supply and demand tend to improve; 3) actively implementing stock repurchases and employee stock ownership plans, demonstrating confidence in long-term development. (Mainichi Keizai Shimbun)