A. In addition, the calculation table of unjust enrichment against the defendant National Health Insurance Corporation shall be written.

A. On December 12, 2005, the Plaintiff is mainly engaged in the following affairs: (a) the Plaintiff is a company established for the purpose of manufacturing and selling household goods, and the manufacture and selling business of detergents; and (b) the Plaintiff is currently engaged in the business of ex post facto management of the business of selling beer by being entrusted to the company of beer (hereinafter “beer”).

B. From January 1, 2006, the Plaintiff applied the type of business of industrial accident compensation insurance (hereinafter “industrial accident compensation insurance”) as “the wholesale retail and consumer product repair business” (9101).

C. On August 5, 2013, Defendant Korea Workers’ Compensation and Welfare Service (hereinafter “Korea Workers’ Compensation and Welfare Service”) suffered from an occupational accident during which the Plaintiff’s workers recovered beer air conditioners, and conducted a fact-finding survey with respect to the Plaintiff.

The Defendant Korea Workers' Compensation and Welfare Service (Seoul Vice Governor) changed the type of the Plaintiff's industrial accident insurance business to "general industrial machinery manufacturing business (2308)" on the ground that the Plaintiff changed the type of the Plaintiff's industrial accident insurance business to "general industrial machinery manufacturing business (22308)" on December 16, 2013, after undergoing internal meetings based on the results of the above fact-finding survey, on the ground that "the Plaintiff is operating the cooling facility maintenance business to maintain beer in the condition of beer, such as taxation, etc. from December 1, 2011 to the provincial retail business to maintain beer in the condition of beer," and accordingly notified the Plaintiff that Article 15 (2) of the former Act on the Collection of Insurance Premiums, etc. for Industrial Accident Insurance Premium Rates and Industrial Accident Compensation Insurance (Amended by Act No. 14932, Oct. 24, 2017; hereinafter "former Employment Insurance Premium Collection Act").

(hereinafter referred to as the “instant change”). After the change of the insurance year prior to the change of the insurance year, the notice of non-business type insurance premium rate, type of insurance premium rate, 201 Do and retail, and consumer product repair business 10/100 of general industrial machinery and equipment manufacturing business 10/100, including the notice of insurance premium order in December 201 (the payment period on January 10, 201).