The provided source material does not contain information regarding a city named Wang Chan in Thailand. Instead, it identifies Wang Chan as a South Korean badminton player.
As an athlete, Wang Chan competed as a junior player and earned several medals at international competitions. Notable achievements include winning silver in the boys' doubles and bronze in the mixed doubles at the 2018 World Junior Championships, as well as contributing to the Korean junior team's mixed team title at the 2017 Asian Junior Championships.