2019 China Petroleum and Chemical Industry Top 500 Conference was hosted by China Petroleum and Chemical Industry Federation, China Chemical Industry Management Association, Suihua Municipal People's Government, and China Chemical Information Association. According to the main business income of 2018 and the public data of listed companies, the rankings are investigated, verified and calculated by the Top 500 Working Committees of China Petroleum and Chemical Enterprises, and are produced according to the international practice of annual income ranking. Floor Standing Box,Hifi Speaker Box,Custom Speaker Box,Single Speaker Box Ningbo Sonice Electroacoustic Science and Technology Co., Ltd. , https://www.secspk.com
2019 China Petroleum and Chemical Industry Top 500 Conference 
Sichuan Meifeng is on the list, ranking 356th on the list
On August 28, 2019, 2019 China Petroleum and Chemical Industry Top 500 Conference and Enhancement and Enhancement - China Chemical Industry Development Summit Forum was held in Anda City, Heilongjiang Province. At the meeting, the list of top 20 Chinese oil and chemical companies was released. Sichuan Meifeng is on the list, ranking 356th on the list, ranking 51 places higher than last year.