How to convert Thai student visa to work visa or business visa

If you have found a job in Thailand, you need to ask for a job invitation letter from your company, and then return to your country to apply for your work visa. The documents required for applying for a work visa in China are: Highest academic qualifications Proof, an invitation letter from a Thai company, a copy of your ID card, a photo, 4 copies of the visa form (you can get it at the Thai consulate) and a round-trip air ticket can be used to apply for a work visa. Generally, the work visa you apply for when you return to your country lasts for 3 months, so after you return to Thailand, you have to go to Thailand to apply for a work permit for foreigners in Thailand. When your visa expires, just bring the information, passport, photos, and work permit given to you by your company to the Thai Immigration Bureau to get a one-year work visa.