What information do I need to consult to work abroad?

Companies that consult first must have a legal business license, and immigration companies with immigration qualifications can be found in official website, Ministry of Public Security. Labor dispatch companies must also have the qualifications of the Ministry of Commerce. When consulting, pay attention to: what is your job, the treatment abroad (including basic salary, overtime pay, working hours, accommodation, paid annual leave, insurance benefits), labor contract (contract term). Payment (by stages), regardless of whether the visa is an immigrant visa or a work visa. How long is the processing cycle (2 weeks in Singapore, 0/-3 months in Japan, 8-/0/3 months in Canada and the United States)? Also, would you please tell me whether the visa that has not been processed is fully refunded? Details include whether the company will pay for the air ticket.