Comment by riffraff

I did too, from the Atlas of Economic Complexity (2023 data).

Cambodia's top 3 is China 42%, Thailand 20%, Vietnam 12%

Thailand's is China 28.7%, Japan 10.2%, US 6.3%

Vietnam's is China 40.8%, South Korea 15.9%, Japan 5%

https://atlas.hks.harvard.edu/countries/116/export-basket

https://atlas.hks.harvard.edu/countries/764/export-basket

https://atlas.hks.harvard.edu/countries/704/export-basket