A. The Defendant is a company engaged in civil engineering and construction business, etc., and the Plaintiffs were recommended to resign due to the Defendant’s managerial difficulties and retired on October 31, 2013.

B. The Defendant’s wage paid to its employees is determined in accordance with the Defendant’s wage rules, the wage agreement entered into between the Defendant and the labor union, etc. The wage rules applied from January 201 to December 201, and the wage agreement relating to the instant case are as follows.

In principle, the benefits of a member under Article 3 (Benefits of September 30, 2006) of the Benefit Regulations (amended by Presidential Decree No. 1903, Sep. 30, 2006) shall be determined by classifying as follows:

ipso facto Contract Director

1. Basic pay:

2. Sexual grade:

3. An overtime work allowance;

4. Food expenses;

5. Field allowances.

6. Overseas area allowances;

7. Other allowances (qualification allowances, together with a license allowance, an appointment allowance for an electrical safety manager, an annual allowance, etc.).

1. Basic pay:

2. Bonuses; and

3. Extended work allowances;

4. Night work allowances:

5. Food expenses;

6. Other allowances (a qualification allowance, annual allowance, safety officer appointment allowance, etc.) and the calculation formula in the subparagraphs of paragraph (1) of the Meditionary Rule shall be as specified in attached Table 1.

Article 4 (Definition of Ordinary Wages) The term "ordinary wages" means basic wages, qualification allowances, incentives, safety managers' allowances.

Article 6 (Grades) (1) The term "sexual grade" means the items that reflects the benefits discriminative according to the personnel evaluation (in the case of an annual salary increase) conducted twice a year and the unit organization evaluation conducted once a year.

(2) The rate of sexual grading based on the personnel evaluation and unit organization evaluation shall be as specified in attached Table 2.

(3) The salary grade based on the personnel evaluation and unit organization evaluation shall be reflected in the benefits as follows:

From October of the year following the personnel evaluation of the first half of the year, the ordinary wage shall be reflected in the unit organization evaluation from April of the year following the personnel evaluation of the first half of the year from October of the year, to March of the following year. Article 8 (Overtime Work Allowance) ① overtime work, night work, and holiday work shall be 50% of the ordinary wage.