Maintain fairness and justice. According to the query news network, the establishment of trade unions in enterprises can effectively safeguard the fairness and justice of labor relations, and trade unions can help enterprises to carry out relevant training for employees. The China Hong Kong Federation of Trade Unions (hereinafter referred to as the Federation of Trade Unions) was established on 1948. At present, there are 229 family associations and sponsorship associations, covering a wide range of industries, mainly including automobile and railway transportation, seafarers' port transportation, aviation, government agencies, public utilities, civil and professional, tourism, catering and retail.