1. The plaintiff (Counterclaim defendant)'s main claim is dismissed.

2. The Plaintiff (Counterclaim Defendant) is KRW 16,534,347.

The principal lawsuit and counterclaim of this case shall be deemed to be filed together.

1. Facts of recognition;

A. The Plaintiff is a company engaged in the building and engineering work, etc., and the Defendant is a company engaged in the installation work, etc., and the Plaintiff has given a subcontract for the part of machinery and equipment work, etc. among the construction works which the Defendant had ordered several times, and the detailed details are

B. On September 25, 2013, the Plaintiff entered into a construction subcontract (hereinafter “instant construction contract”) with the Defendant on a fixed basis as KRW 710,000 (including value-added tax) on September 25, 2013 with respect to sanitary equipment and fire-fighting equipment among the new construction works of the C Office building on the land B in Bupyeong-si as of September 25, 2013, and on December 10, 2013 as of the completion date, and the contract amount of KRW 5,00,000 (including value-added tax). In the process, the Plaintiff paid KRW 3,640,000 to the Defendant total of the materials that the Defendant has to pay. In the end, the Plaintiff, in relation to the said C construction works, should receive a settlement amount of KRW 710,00 (including value-added tax) from the Defendant.

C. On December 1, 2013, the Plaintiff entered into a construction subcontract (hereinafter “instant construction contract”) with the Defendant on a fixed basis as KRW 31,90,000 (including value-added tax) on the commencement date of the construction of machinery and equipment among the construction of E-style E-style on the ground of Gangnam-gu Seoul, Seoul as of December 1, 2013; the completion date of construction; and the contract amount of KRW 31,90,000 (including value-added tax). The Defendant performed the instant construction project; and the Plaintiff paid the Defendant the total amount of KRW 25,30,000 as the construction price.

On January 7, 2014, the Plaintiff entered into a subcontract for construction (hereinafter “instant G construction contract”) with the Defendant on the date of commencement of the construction of machinery and equipment works among G remodeling works on the F-based F-based ground in Pakistan, with the amount of KRW 13.2 million (including value-added tax) as of the date of completion, February 15, 2014, and the contract amount of KRW 13.2 million (hereinafter “instant G construction contract”), and the Defendant carried out the instant G construction works.

E. On January 7, 2014, the Plaintiff was on the H ground of Pakistan between the Defendant and the Defendant.