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1. All of the plaintiff's claims are dismissed.
2. The costs of lawsuit shall be borne by the Plaintiff.
Reasons
1. Facts constituting the basis for determination
A. On August 201, 201, the Plaintiff entered into a subcontract (hereinafter “CED”) with the Defendant, which contains the following contents, with the Defendant during the period of construction, and the Plaintiff completed the instant additional construction work by not later than September 201, 200,000 won in accordance with the Defendant’s request and the promise to pay additional construction costs (value added tax) to the Defendant on September 3, 201. After obtaining the approval of the Defendant, the Plaintiff entered into a subcontract (hereinafter “CED”) with the Defendant, including the following. From November 1, 2011, the Plaintiff completed the instant additional construction work by not later than December 201, 200,000 won in total, despite the fact that the instant additional construction work was not included in the instant C work from the first to December 201, 200,000 won (hereinafter “Additional construction work”).
The supply value: 165 million won (including value-added tax, "Provided, That the plaintiff may not demand an additional increase in the contract amount due to an estimate error, price increase, etc. after concluding the contract, and an additional cost due to a change in SPEC and design change at the request of the business owner) and the completion of construction: by October 31, 201 (the extension by February 29, 2012 during the B): Major construction details by October 31, 201 (the extension by February 29, 2012): the adjustment of the installation of RAk assembly, adjustment of the installation of summer days, the installation of a load frame, and the installation of steel frame at the front or after the conclusion of the contract.
In addition, on December 2012, 2012, the Plaintiff is called as the “construction work of the automation warehouse of this case” in the subcontract “D ACK, STC, RGV, CONV, etc.” which includes the following contents between the Defendant and the Defendant:
(C) On January 1, 2013, the progress of the construction was suspended on January 1, 2013 when the Plaintiff completed the construction work for a certain degree of “25% of the construction cost.”
Among them, the date of completion between the plaintiff and the defendant is late on August 30, 2013, and the contract amount is 58 million won.