Yunnan Water Investment Co., Limited announced that Mr. Yu Long submitted a resignation letter to the Board due to work reasons, to resign as a general manager of the Company with effect from 29 May 2023. The company announced that Mr. Liu Jianjun has been appointed as the general manager of the Company with effect from 30 May 2023. Mr. Liu, aged 44, was awarded a bachelor's degree in Environmental Engineering from Beijing Business University in June 2001 and was awarded the title of senior engineer in September 2022.

From September 2008 to October 2014, Mr. Liu served as general manager of Jiangsu OriginWater Environmental Technology Co. Ltd. Since December 2013, Mr. Liu has served as a director of Nanjing Urban Construction Environmental Water Service LLC. Since October 2014, Mr. Liu has served as a chairman of Jiangsu OriginWater Environmental Technology Co.

Ltd. Since November 2016, Mr. Liu has served as a chairman of Jiaxing OriginWater Jiayuan Ecology Technology Co. Ltd. Since June 2020, Mr. Liu has served as a chairman of Shenzhen OriginWater Ecology Investment & Construction Co. Ltd. From September 2010 to 30 May 2023, Mr. Liu has served as a deputy general manager of Beijing OriginWater Technology Co.

Ltd.