Doumob announced that with effect from 17 April 2020, Ms. ZHOU Zoe has resigned as an executive Director and vice president due to her other business engagement which requires more of her attention and dedication. The Board further announced that with effect from 17 April 2020, Ms. LUO Yanhong is appointed as an executive Director of the Company. Ms. LUO has been served as the chief financial officer of Company since March 2020. She was a director and chief financial officer in Sino Geophysical Co. Ltd. a company listed on the ChiNext Market of Shenzhen Stock Exchange, from March 2006 to July 2015. She served as a director, chief financial officer and secretary to the board in Huahui (Beijing) Technology Co. Ltd.