The employer shall establish and improve the employee health files and which files.

I. Management Document of Occupational Health Surveillance of the Employer 1. Power of attorney for occupational health monitoring; 2. Occupational health examination results report and evaluation report; 3. Occupational disease report; 4. Records of treatment and placement of patients with occupational diseases, patients with occupational contraindications and employees with occupational-related health damage. 2. GBZ/T 225-2010 "Guidelines for Occupational Disease Prevention and Control of Employers" 4.1.1Establishing and perfecting the occupational health monitoring files of workers According to regulations, the employer shall establish occupational health monitoring files for workers (including temporary workers) who have labor relations. The roster of workers shall be filed separately before, during and after taking up their posts. The occupational health monitoring files shall include the following contents:-general information such as the name, gender, age, native place, marriage, education level and hobbies of the workers; -Workers' occupational history, past history of occupational hazards and exposure history; —Monitoring results of occupational hazard factors in corresponding workplaces; —Occupational health examination results and treatment; -Workers' health information such as diagnosis and treatment of occupational diseases.