1. The plaintiff's appeal is dismissed.

2. The costs of appeal shall be borne by the Plaintiff, including the part arising from the supplementary participation.

1. The reasoning of the judgment of the court of first instance, citing the instant case, is as stated in the reasoning of the judgment of the court of first instance, except for the following parts and the part concerning which the plaintiff emphasized at the court of first instance or claimed an additional claim, and thus, citing this in accordance with Article 8(2) of the Administrative Litigation Act and the main sentence of Article 420 of the Civil Procedure Act.

(Other matters alleged by the Plaintiff in the trial are not significantly different from the contents alleged by the Plaintiff in the first instance trial, and even if all of the evidence submitted in the first instance and the first instance trial are examined, the judgment of the first instance court rejecting the Plaintiff’s assertion is justifiable). [The part to be dismissed] If the third part of the first instance judgment, the second third part to the third part to the third part to the second part to the 4th part to the 4th part to the 2nd part to the 19th [Attachment 2] table to the second part to the "road business division" respectively.

The fourth fourth part of the fourth part of the judgment of the court of first instance is the sixth part of the fourth part ( December 17, 2017) "( October 29, 2017)" to "( October 29, 2017)."

The Y Co., Ltd. in the 7th judgment of the first instance is regarded as “Y Co., Ltd.”.

Part 8 of the judgment of the court of first instance states "necessary" as "necessary" under Part 2 below.

In the 8th judgment of the first instance, the monthly average operating hours of 7 to 9 is 57-730 hours for building materials, 169-316 hours for paints, 100% for the former, and 45.6% for the latter in the case of building materials in the business sector, the monthly average operating hours of 57 hours for building materials, 248 hours for the royalty sector, 104% for building materials among the building materials sector, and 100% for the glass sector, and 45.6% for the royalty sector.”

【Supplementary Decision】

A. Determination on the argument regarding the significant difference in working conditions 1) Determination on the difference in bonus payment standards 1) The intervenor and each factory trade union in 2017, summary of the plaintiff's assertion, are through collective bargaining in 2017.