11 September 2023 on Thai Airways FB for China:

THAI also plans to increase flight frequencies to destinations in China from 49 to 56 flights per week starting 1 December 2023 with details as follows:
• Bangkok – Beijing v.v. operations will be six flights per week during 29 October – 30 November 2023 and will be increased to daily flight on 1 December 2023.
• Bangkok – Shanghai v.v. operations will be daily flight during 29 October 2023 – 30 March 2024.
• Bangkok – Guangzhou v.v. operations will be daily flight during 29 October 2023 – 30 March 2024.
• Bangkok – Kunming v.v. operations will be three flights per week during 20 October – 30 November 2023 and will be increased to daily flight on 1 December 2023.
• Bangkok – Chengdu v.v. operations will be two flights per week during 20 October – 30 November 2023 and will be increased to daily flight on 1 December 2023.