1. Some employees of Tianjin West District Sewage Treatment Plant were formally established. Formal establishment refers to employees who are hired and formally incorporated into the organization according to certain procedures according to national and local laws and regulations, and enjoy corresponding rights and benefits, including wages, benefits, positions, etc.
2. Some employees of Tianjin West District Sewage Treatment Plant are contract employees. Contract employment means that when hiring employees, both parties reach a written labor contract, stipulating the rights and obligations, work content, working conditions, remuneration, insurance benefits, termination conditions and other terms of both parties. It is a form of establishing legal, reasonable and fair labor relations between employers and employees.