The parties in Cambodia and Thailand expressed gratitude for the mediation efforts by China and the United States.

References from the British Broadcasting Corporation’s website on July 28th reported that, accompanied by leaders of Thailand and Cambodia, Malaysian Prime Minister Anwar announced on the 28th that both countries have agreed to end their hostilities. He stated that Malaysia and other ASEAN member states would assist in overseeing the ceasefire process.
It is noteworthy that observers from the United States and China were present at this meeting.
The report also mentioned that Cambodian Prime Minister Hun Sen and Thai Deputy Prime Minister Prayut Chan-o-cha expressed gratitude for the participation of U.S. President Trump and the Chinese government in mediating the situation. (Video source: News)