A. 1) The Defendant (former Mutual J Co., Ltd.) is a party to the dispute. The Financial Investment Services and Capital Markets Act (hereinafter “Capital Markets Act”).

(1) as a financial investment business entity with the aim of the investment brokerage business as set forth in the section, K Co., Ltd. (hereinafter referred to as “K”)

2) The term “M” means “M” (hereinafter referred to as “M”).

) N Co., Ltd. (hereinafter “N”)

(2) The Plaintiffs purchased corporate bonds through the Defendant, or entered into a specified money trust contract with the Defendant, while they were affiliated companies of the O Group, which was composed of the enterprise groups, and were incorporated into P’s affiliated companies from June 11, 2014.

B. K Co., Ltd. 1) The K-A-A-A-A-A-B-A-A-B-A-A-B-A-A-B-A-A-B-U-U-B-A-B-A-U-B-A-U-U-U-U-U-U-U-U-U-B-U-U-U-U-U-U-U-U-U-U-U-B-B-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-B-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U-U.

) Korea Credit Rating Co., Ltd. (hereinafter referred to as “Korea Credit Rating”);

) and age credit information Co., Ltd. (hereinafter referred to as “Sa credit information”);

(B) The credit rating for the K company’s K company bond was between January 1, 2008 and December 7, 2012, and was demoted to BB from December 7, 2012. From June 14, 2013, BB-ro (Korean credit rating), and from September 11, 2013, B (Korean company assessment, age credit information), and B (Korean credit rating) were renewed. 2) M was drafted as of March 28, 2013 and April 29, 2013, respectively. < Amended by Presidential Decree No. 24477, Apr. 29, 2013>