ma liantao, chairman of the board of directors of our company, won the title of "2017 excellent entrepreneur of china's comprehensive utilization of fly ash" at the 5th asian international exchange conference on the treatment and utilization of fly ash and desulfurized gypsum held from september 22 to september 25, 2017. at the same time, our company was selected at the founding conference of national technological innovation strategic alliance for coal based solid waste recycling industry held at the same time ma liantao, chairman of the company, was elected vice chairman of the alliance.