Part-time US Mission Sorter does not need to sign a contract.

Sign the contract. Part-time job requires signing a contract, which is specifically stipulated in the Labor Contract Law of People's Republic of China (PRC). The Labor Contract Law of People's Republic of China (PRC) stipulates that the employer needs to sign a labor contract with the employee, but there are special provisions on part-time work, which stipulate that both parties of part-time employment can conclude an oral agreement. Therefore, it is also necessary to sign a labor contract for a part-time job, just saying that there is no need to sign a written contract, just an oral agreement.