Why is Nanchang Tongxingda called Black Factory?

Nanchang Tongxingda is called a black factory because Nanchang Tongxingda is not good. Because Nanchang Tongxingda was tired, the management didn't do practical things, and the team leader only asked for output, not quality, and the assembly line was particularly fast, which led to poor product quality. Treat grass-roots employees badly, and it has been disclosed in the past that the salary of administrative staff is abnormal. Therefore, Nanchang Tongxingda is called a black factory because Nanchang Tongxingda is not good.