Is Sany’s layoffs legal?

30% layoffs are only the basic minimum ratio, and some divisions have laid off 70% of their employees. Everything Sany does is like doing sports. In the past few years, it has blindly expanded and hired a large number of people. Each department has issued assessment indicators for recruitment (speaking of Sany’s various ridiculous and funny assessments, I want to greet those in the management). Ancestors, typical private enterprise thinking), regardless of whether it is really needed. Now it suddenly makes a 180-degree turn and lays off employees without any compensation. No matter how much you have contributed to the development of Sany, the leaders' mistakes in decision-making must be borne by the people below. What helps employees succeed is just nonsense. Employees can understand that the current economic situation is poor, but do you, Sany, really have to violate labor laws and human ethics and kick out employees who have selflessly contributed to your development?