1. Business demand: Wuxi Oatway Company's orders surged, resulting in great production pressure, and employees had to work overtime to meet the production demand.
2. Poor management: The management of Wuxi Oatway Company failed to effectively plan the workload and time, or there were problems in the workflow, resulting in employees working overtime.
3. Voluntary employees: A few employees of Wuxi Oatway Company take the initiative to work overtime for personal reasons, or hope to get more benefits such as overtime pay through overtime work, which leads to the phenomenon of overtime work becoming more and more serious.