You can do domestic visa transfer without flying out. You have to discuss with HR or whoever work on visa whether there is position to be ready to register your profile with BOI system. If not I'm afraid the time is quite tough to do profile registration. So what I advise is to get the void stamp before visa expiry date. Flying out to apply temporary non-B visa from Thai consulate located overseas. Finally do profile register in order to obtain
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or 4 years visa (depending on type of business and agreement with BOI)