What documents are needed for U.S. business while in Thailand and is Taiwan a good option for applications?

For U.S. business activities while in Thailand, you will need to present your business registration and permission to work remotely. Make sure to detail your online business activities and clarify that you won't engage in any business activities while physically in Thailand. Regarding applications from Taiwan, feedback suggests avoiding it currently due to adverse conditions, with some recommending Vietnam as a better alternative.