Interesting and may explain this in today's Khmer media. No mention of Chinese tourists BUT:
"This proposal was made during a meeting between Sok Soken, Minister of Tourism, and Mr. Patrick Muphy, US Ambassador to Cambodia, on October 10, 2023, to discuss how to improve as a Cambodia-US partner, especially to promote tourism and examine opportunities to strengthen tourism cooperation.
The Minister pointed out that US tourists are Cambodia’s main target market, being among the top 10 markets both before and after the COVID-19 crisis"
https://www.khmertimeskh.com/501374880/minister-of-tourism-asks-the-us-side-to-help-attract-tourists-and-investors-to-cambodia/
Moderators please remove if considered irrelevent.