What documents and bank statements are accepted by the Thai embassy for a workcation visa application?

A few things.

I applied in NY and only provided the Articles of Incorporation which shows me as an officer and my IRS EIN letter. I did not provide any further info other than a letter outlining my name, job title, my responsibilities and my authorization to work remotely as a corporate officer. I provided no further info about my company.

As it regards the bank statement they will probably reject the corp bank statement as they want to see money in your name. Also a screen shot will not be acceptable. It's easy to modify the info on the web page if you know what you are doing. Has to be in your name and should be a PDF. I just supplied a summary from Schwab without transactions.

Pdf file of bank statement.