Dear Teun,
Thanks fro your e-mail.
After that we talked on the phone to the Thai embassy.
1.The Doc 1 , Doc 2 and Doc 3 Commercial Company Certificate and Tax registration.
you can show these documents to Thai Embassy.
2.For financial year report I think it is not necessary However; I will give you the document is used financial year report.
I hope it should be OK.
Best regards./Pongsiri.