The Korea Workers’ Compensation and Welfare Service(COMWEL) operates the following system as a strong shield for the protection of claim for wages of workers: The wage for the last three months in the month and for the last three years of retirement funds shall be given priority over other securities, taxes, and utility bills to be protected in the highest priority. COMWEL provides standard substitute wage within the scope of wages and severance pay with the highest priority right on behalf of the employer for the protection of the livelihood of retired workers who failed to receive wages due to the bankruptcy of the business site. COMWEL newly operates the small substitute wage program to protect the previously unprotected retirees with unpaid wages from currently operating business.