To establish labor relations, a written labor contract shall be concluded. If a labor relationship has been established and a written labor contract has not been concluded at the same time, a written labor contract shall be concluded within one month from the date of employment. If the employer and the employee conclude a labor contract before employment, the labor relationship shall be established from the date of employment. If the employer fails to conclude a written labor contract at the same time of employment, and the labor remuneration agreed with the employee is not clear, the labor remuneration of the newly hired employee shall be implemented in accordance with the standards agreed in the collective contract; If there is no collective contract or there is no agreement in the collective contract, equal pay for equal work shall be implemented.