Overall, there aren't really any advantages.
You might only feel good at the moment when you receive your paycheck.
1. When you first join, supervisors always say, “Your salary can be adjusted after the three-month probationary period.” I have been working here for over a year, and I have not received even a single cent of a raise.
2. Leaving work on time becomes the biggest crisis. (Your supervisor will think you are not busy, which is why you can leave on time. After that, they will keep assigning you more work from time to time.)
3. There are fewer office staff than on-site staff. (On-site staff are responsible for inspecting the workpieces and completing the products so they can be shipped. Office staff in the Materials Department are not only responsible for receiving and shipping materials, but also for following up to ensure timely delivery and calculating amounts. It is like combining production control and finance. Production control staff are not only responsible for tracking workpiece progress, but also for sales and assisting the Materials Department, as well as handling the company's total monthly shipment value. In short, office staff are expected to be all-rounders—one person is used as three. It is extremely miserable.
4. Office staff do not receive overtime pay. (When you first join the company, they will ask you to sign a great many documents, one of which is a voluntary overtime agreement. But as mentioned in point 2, it is extremely rare to be able to leave work on time.)
5. The company is extremely reluctant and stingy when it comes to paying employees. (They treat money from the Employee Welfare Committee as your year-end bonus, using various labels to cover it up and pretend that it is your year-end bonus. In reality, you do not receive a single cent of an actual year-end bonus. Because listed companies are required to distribute the Employee Welfare Committee funds, but are not required to provide a year-end bonus. For example, this year, if the Employee Welfare Committee funds were 30,000 plus a one-month year-end bonus, you should receive at least 50,000. But the company's calculation is simply 30,000 plus 0, so the difference is 20,000.
6. There are no employee trips; the only benefits you receive are the three traditional holiday gifts/bonuses.
In summary, why am I staying? Because I have a family, and I have other plans for next year, so I can only continue working here.
But you have a choice. There are still many good companies out there.