What Thailand importers fear most is not poor sales. It is the possibility that non-compliant factory certificates could put their own import license at risk. When they choose a Chinese factory, they are not counting how many documents you provide. They are judging whether those documents can actually be accepted by Thai-side regulators.
Many Chinese factories do not lack qualifications. The real problem is that the way certificates are expressed, the workflow files are structured and the system logic is presented does not match Thai expectations. If the process chart, quality explanation and factory registration details fail to close the loop, the importer carries unnecessary legal exposure.
This is why factory qualification cannot stop at collecting paperwork. The practical task is to reorganize those factory files into a structure that both the importer and Thailand FDA can understand, so repeated clarification and document requests are reduced.