Excuse me, which institution is better and more formal for Shenyang to handle overseas labor services?

It is best to find a company recognized by the Ministry of Commerce for labor license. Don't look for those packages and those so-called affiliated companies. If possible, go to the website of China Ministry of Commerce to find out.

Mind you, I know one. His family is a labor service company without the approval of the Ministry of Commerce and the study permit of the Ministry of Education. It should be a black intermediary. The company's address is near Hao San Street, in Xincheng Apartment, covering more than 20 square meters. What's your name? Xu human resources service company. I can't remember the name. There seems to be only two or three people in the company. It's not formal at all. I hope I don't fall for it.