FAP, May 15, Kailong High-Tech rose 10%, Kailong Hi-Tech rose 10%, Wanyi Technology rose more than 5%, Ecolan, Heyuan Gas, Longyuan Technology, and Zhongchuang Environmental Protection rose at the top. On the news side, Tianfeng Securities pointed out that after the implementation of the sixth national emission standard, the average unit price of exhaust treatment catalysts for light diesel vehicles, heavy diesel vehicles and gasoline vehicles has increased by 105.72%. The market scale of motor vehicle exhaust treatment catalysts in China will reach 93.8 billion yuan, a substantial increase of 156% compared with the original national five emission standards.