The defendant paid KRW 72,806,390 to the plaintiff as well as 6% per annum from October 1, 2017 to February 5, 2021.

1. Summary of the parties' arguments

A. From September 30, 2016 to September 30, 2017, the Plaintiff supplied the Defendant with special gas, such as hydrogen, hydrogen, nitrogen, known difficulty, carbon, and healthium, as indicated in the table below, and issued a tax invoice of KRW 153,660,60 in total after performing pipeline works, etc. against the Defendant’s customer. The Defendant paid KRW 114,867,016 to the Plaintiff on November 11, 2016, and did not pay the remainder of KRW 114,867,016.

Therefore, the defendant is obligated to pay 114,867,016 won to the plaintiff.

Serial 1234 5 67 September 30, 2016, September 30, 2016, 1234 5 6 7 38,793,593,590 18,5780 13,3409,317,205,890, 2890, 893, 780, 278, 278, 278, 278, 278, 8208 89, October 31, 2016, December 31, 3016, 3017;

B. Defendant 1) already paid the price for the re-goods 1 of the above table Nos. 7, 8, 9, and 12, and the Plaintiff issued the revised tax invoice for the reason of rescission of the contract on each of the re-goods 7, 8, 9, and 12, and the amount for each of the goods 10,11 was incurred in the transaction that the Defendant did not examine, and the Plaintiff requested the Plaintiff to pay the revised tax invoice. In relation to this, some of the 13 re-goods 13 re-prices occurred in the transaction with the other company that is not the Defendant, the Plaintiff filed a complaint against the Plaintiff’s employee C by embezzlement, and the remainder occurred in the transaction that the Defendant did not examine. The Defendant’s price for the goods to be paid is only the total amount of KRW 18,037,063 (the detailed list of items 2 through 6) confirmed through the Defendant’s sales of each of the re-goods 7 or 13 of the above table Nos. 2 through 73869,0.

2) The Plaintiff may cancel the contract to the Defendant.