Yes, you can convert your Thailand work visa to permanent residency by fulfilling specific requirements, such as living in the country for at least three continuous years on a valid work permit, have a monthly income of at least ฿80,000 for at least 2 years, and have paid ฿100,000 as personal income tax for two consecutive years before submitting your application for PR. You must also have a basic proficiency in the Thai language, in addition to meeting other requirements.