When you go to Singapore to apply for a work visa, the intermediary you find is different and the fees are different. Generally, it is a 3w6 package ticket. What you need to apply for a Singapore work visa is the job requirements and interview time provided by the intermediary. If the interview is successful, the approval can be issued in a week or so, and with the approval, you can book a plane ticket to enter Singapore. Some require entry time, application for approval, and employment insurance is arranged according to the employer. I wish you all the best in order to protect your rights and interests and prevent employers or intermediary companies from defaulting.