What is the process and cost of opening a company for self-sponsoring a visa in Thailand?

To self-sponsor your visa by opening a company in Thailand, you need to employ at least four Thai nationals and deposit 2 million baht at a bank as proof of salary payment capacity. The costs can be significant, with monthly expenses around 150,000 baht including salaries, employee wages, government fees, and bookkeeping services. The process can be lengthy and involves thorough checks by immigration officials to ensure the legitimacy of your business.