Chinese Ambassador to the United States Cui Tiankai speaks at an event celebrating the 40th anniversary of the establishment of bilateral ties in Washington D.C., the United States, June 18, 2019. (TING SHEN / XINHUA)
Chinese Ambassador to US Cui Tiankai has said he will leave his post and return to China after eight years of service.
Cui made the statement in a letter released on the website of the Chinese embassy in the US on Monday.