1. The Defendant: (a) KRW 210,00,000 for the Plaintiff and 6% per annum from May 9, 2014 to December 10, 2014; and (b) the Plaintiff.

1. Basic facts

A. The status of the parties is a research institute with eco-friendly future vessel technology, offshore plant engineering technology, response to marine accidents and marine traffic system technology, underwater robots and offshore equipment technology, etc., and its affiliated research departments are future vessel research departments, offshore plant research departments, marine safety research departments, and marine system research departments.

B. On July 22, 2011, the Korea Institute of Maritime Affairs, which entered into a tender announcement and construction contract, conducted an open bid at the 16m depth in front of 1km in front of the front sea of irrigation at the Han-do, Jeju Special Self-Governing Province, regarding “Aro 37.0m x width x 31.2m x high 27.5m x the construction of maritime structures for power generation at the test frequency.” The Defendant was selected as a successful bidder on July 27,

On August 12, 2011, the Korea Maritime Research Institute concluded a construction contract with the Defendant (hereinafter “instant construction contract”).

(1) The term "construction work of this case" means construction work of a marine structure with the test power plant with the water level of 500km to August 17, 2012 (hereinafter "construction work of this case"): The construction work price of the construction from August 18, 201 to August 17, 2012: Terms for payment of 70% advance payment (including value-added tax): Contract bond of 288,889,700 won: The contract bond of this case: 1/1,000 of the contract price of this case as general conditions for the construction work of this case (referring to the date of filing a report on construction completion under the contract of this case; hereinafter the same shall apply): The contract price of the construction work of this case shall be calculated by multiplying the contract price of every year by the rate of delay (hereinafter the contract price for delay).

(3)