Mr. Yang Lin, Chinese nationality, no right of permanent residence abroad, born in 1978, bachelor's degree. Since June 2007, he has served as the Manager and Director of the Design Department of the Company. Since May 2018, he has served as the Employees Representative Supervisor of the third Board of Supervisors of the Company.

Mr. Liu baohai, Chinese nationality, no overseas permanent residence, born in 1978, studying in EMBA of fudan university.From July 2003 to now, successively served as the sales manager and director of the company.

Mr. Yuan jin, Chinese nationality, no overseas permanent residence, born in 1965, bachelor degree.From October 2000 to now, successively served as manager and director of equipment department of the company.