There can be a "secret salary system", but the salary rules cannot be kept secret. In recent years, "confidential salary system" regulations such as "prohibiting employees from exchanging personal salary information" have been written into the management systems of many companies.
To satisfy employees' right to know their remuneration, employers should let employees know whether equal pay is equal for equal work. In the final analysis, the key to reducing staff turnover may not lie in salary confidentiality, but openness in salary grades, structures, and standards.