K-Dia Prepayment Service Outsourcing Terms and Conditions

The purpose of these Terms and Conditions (hereinafter referred to as the "Payment Terms") is to stipulate matters concerning the rights, obligations, etc. between the "Company" and the "User," and to allow medical institutions (hereinafter referred to as the "User") utilizing the "Company's" medical advertising services to entrust the "Company" with the task of pre-payment of medical expenses in order to use the "Payment in App" function provided by Dia Ad Co., Ltd. (hereinafter referred to as the "Company").

① The meanings of the terms used in the "Payment Terms and Conditions" are as follows: A. "Payment in App" refers to a service provided by the "Company" to the User for the User's convenience, enabling the User to check the "Medical Fees" for "Eligible Medical Treatments" specified in the User's advertising materials posted on the K-Dia platform (hereinafter referred to as "K-Dia") and to prepay all or part of the fees. The Company performs the prepayment of medical fees in accordance with the "Payment Terms and Conditions" to enable the "User" to use the "Payment in App" function. B. "Eligible Medical Treatment" refers to the medical service that is the subject of the advertising materials posted by the "User" on "K-Dia" in accordance with the "Service Terms and Conditions." C. "Medical Fees" refers to the costs that must be paid to the hospital to receive "Eligible Medical Treatments," such as procedures selected by the User. D. "Service Terms and Conditions" refers to the "K-Dia Medical Advertising Service Terms and Conditions." E. "Reservation Terms" refers to the "Terms and Conditions for Outsourcing Reservation Services." F. "K-Dia Terms" refers to all agreements agreed to or entered into by the "User" for the "Company's" services, including the "Payment Terms," ​​"Service Terms," ​​and "Reservation Terms." ② Any terms used in the "Payment Terms" that are not specified in this Article shall be governed by the "Service Terms," ​​guidance on the "Service Administrator Page" or related webpages, and relevant laws and regulations; otherwise, they shall follow general practice.

① The "Company" shall post the contents of the "Terms of Payment" on the initial screen or linked screen of the "Service Administrator Page" so that the "User" can easily recognize them. ② The "Company" may amend the "Terms of Payment" if necessary, to the extent that such amendments do not violate relevant laws and regulations. ③ When the "Company" amends the "Terms of Payment," it shall specify the details of the amendment and the effective date and post a notice on the "Service Administrator Page" from 7 days prior to the effective date until the day before the effective date. However, if the amendment is unfavorable to the "User," the notice shall be posted starting 30 days prior to the effective date. ④ If the "Company," while posting a notice pursuant to the preceding paragraph, clearly announces that failure to express an intent to the "User" by the day before the effective date will be deemed as having expressed intent, or if the "User" does not explicitly express a refusal despite the notice being provided in accordance with Article 11, the "User" shall be deemed to have agreed to the amended Terms. ⑤ If the "User" does not agree to the revised terms and conditions, they may withdraw by expressing their refusal to the "Company" before the effective date.

① By agreeing to these Terms and Conditions and obtaining approval from the Company to use the Service, the User is deemed to have entrusted the prepayment of medical expenses to the Company by utilizing the "Payment in App" function. ② The "Company" may withhold approval if there is insufficient capacity in service-related facilities in accordance with the "K-Dia Terms and Conditions," or if there are technical or operational obstacles. ③ The "Company" may refuse approval to any applicant who has applied as per Paragraph 1 if they fall under any of the following subparagraphs, and may cancel approval even after registration if any of the reasons below are confirmed. A. If the applicant has a history of being restricted from using the Service based on the "K-Dia Terms and Conditions" in the past. B. If the applicant applies for re-registration after withdrawing as a "User" while under restriction on using the Service due to reasons such as violation of the "K-Dia Terms and Conditions." C. If a name other than the real name or the name of another person is entered (including cases where information from another medical institution is stolen). D. If false or incorrect information is entered or provided, or if the information requested by the "Company" is not entered. E. If acceptance is impossible due to reasons attributable to the "Applicant," or if the application is made in violation of any other matters stipulated in the "K-Dia Terms and Conditions" f. If there is a risk of or actual violation of other relevant laws and regulations ④ In the event that the "Company" does not accept or reserves the right to accept the consignment contract pursuant to this Article, the "Company" shall, in principle, notify the "User" of this in accordance with the method prescribed in Article 11.

① To provide the "Payment in App" function, the "User" entrusts the following tasks to the "Company" (hereinafter referred to as "Entrusted Tasks"): a. Prepayment of medical fees for eligible medical treatments b. Customer service (CS) tasks related to the prepayment of medical fees for eligible medical treatments (including refund and cancellation processing, customer information processing, and communication between the "User" and other users) c. Other tasks, such as settlement, incidental to the prepayment of medical fees for eligible medical treatments ② The "Company" performs the entrusted tasks by providing the "Payment in App" service to the User using the platform's payment function, so that the User can verify and prepay the medical fees of hospitals for the eligible treatments pursuant to Paragraph 1. ③ The "Company" may re-entrust all or part of the "Entrusted Tasks" to a third party, such as a Payment Gateway (PG) company. ④ If, considering the characteristics of the target medical treatment, it is deemed inappropriate to provide the "Payment in App" function for the target medical treatment requested by the "User," the "Company" may refuse to perform the prepayment of medical fees despite the "User's" request. ⑤ Specific details regarding the method of activating the "Payment in App" function by the "User," the scope and criteria for restricting the use of the "Payment in App" function, etc., will be provided through the "Service Manager Page" or related web pages.

The "Payment Terms and Conditions" are entered into for the operation of payment services within the app provided by the Company for the convenience of consumers, and the entrustment fee for the prepayment of medical expenses under these Terms and Conditions shall be free of charge.

① The "User" shall provide accurate and sufficient information necessary for the "Company" to be entrusted with and perform the prepayment of medical fees for eligible medical treatments, as described in the following subparagraphs, and shall respond faithfully to inquiries from the "Company": a. Name of the "Eligible Medical Treatment" b. Overview of the "Eligible Medical Treatment" c. Medical fees for the "Eligible Medical Treatment" d. Information regarding the discount, such as the discount period, discount rate, and medical fees before discount, if the medical fees for the "Eligible Medical Treatment" are discounted costs e. Other information necessary for the Company to perform the prepayment of medical fees for the "Eligible Medical Treatment" and to provide the "Payment in App" function ② The "User" has the obligation to faithfully manage the medical services provided to the "User" in good faith, and is responsible for managing and operating the "K-Dia" to ensure that advertisements, etc. exposed to the User through "K-Dia" do not violate relevant laws and regulations or these Terms and Conditions. ③ The "User" shall take measures to ensure that the "Pay in App" button is not displayed in advertising materials regarding "Targeted Medical Treatments" that are prohibited from being advertised on "K-Dia" or for which the use of the "Pay in App" function is restricted in accordance with the "K-Dia Terms and Conditions." If this is violated, the "Company" may take measures against the relevant "User," such as restricting usage in accordance with the "K-Dia Terms and Conditions," in accordance with internal policies. ④ If the "Company" requests the provision of information and supporting documents necessary for the operation of the "Pay in App" function and the performance of medical fee prepayment tasks, the "User" shall respond faithfully to such request. ⑤ The "User" shall frequently check matters announced by the "Company" through the "Service Administrator Page" and related web pages. ⑥ The "User" shall not use automated means, such as Agents, Robots, Scripts, Spiders, or Spyware, other than those provided by the "Company," to access the "Service Manager Page" or access the "User's" own account or another user's account in order to copy or monitor the contents and information of the Service in accordance with the "K-Dia Terms." ⑦ Under no circumstances shall the "User" directly or indirectly cause a load on the "In-App Payment" Service, or engage in or attempt to engage in any act that interferes with the normal operation of the "In-App Payment" Service or other services of the "Company." ⑧ The "User" shall not engage in any of the acts falling under the following subparagraphs. In the event of a violation, the "Company" may take measures such as suspending the use of the "In-App Payment" function or terminating the "K-Dia Terms" without prior notice. After taking the aforementioned measures, the "Company" shall promptly notify the "User" of the reason. A. a. Abusing acts such as falsely impersonating "Targeted Treatments" or using another user's account to prepay for a "User's" "Targeted Treatments." b. Acts that infringe upon the intellectual property rights of others, such as using another person's trademark or logo without permission. c. Posting advertising materials that violate relevant laws and regulations, or activating the "In-App Payment" function for "Targeted Treatments." d. Treating users who have prepaid medical fees using the "In-App Payment" service unfairly on the grounds of such prepayment. e. Acts prohibited by relevant laws and regulations, the "Company's" "K-Dia Terms and Conditions," sub-policies, guidelines, or other notices on the "Service Manager Page" or related webpages. f. Other acts that violate public order and good morals or interfere with the "Company's" normal services.

① The "Company" shall faithfully perform entrusted tasks in accordance with these Terms and Conditions and do its best to provide the User with continuous and stable "Payment in App" services. ② If the "Company" deems it necessary regarding inconveniences requested by the "User" or improvements to the "Payment in App" function, it shall prioritize resolving such issues. However, if prompt resolution is difficult, the "Company" shall notify the "User" of the reason and the processing schedule. ③ The "Company" shall respect the "User's" wishes when entrusted with and performing medical fee prepayment tasks. ④ If the "Company" has doubts during the performance of tasks in accordance with these Terms and Conditions or if a situation arises that results in unforeseen disadvantages to the "User," it shall immediately notify the "User" to confirm the "User's" wishes and follow their instructions. However, in exceptional cases where it is difficult to perform entrusted tasks in accordance with the "User's" instructions as described in the following subparagraphs, the "Company" may take necessary measures first and then notify the "User" of the details of the measures and the reasons. A. a. Where it is difficult to perform entrusted tasks in accordance with the "User's" instructions due to laws, corrective measures by supervisory authorities, administrative orders, etc. b. Where it is difficult to perform entrusted tasks in accordance with the "User's" instructions when considering the characteristics of "K-Dia," such as when it is necessary to apply a uniform policy to users. c. Where it is difficult to perform entrusted tasks in accordance with the "User's" instructions when considering the characteristics of "Targeted Medical Treatments," etc. d. Where there is or is a risk of causing legal or financial risks to the "Company." e. Where there is or is a risk of damaging the "Company's" honor, reputation, credit, or credibility. f. Where there is or is a risk of degrading the "In-App Payment" service or quality. g. In other cases where it is difficult to perform entrusted tasks in accordance with the "User's" instructions due to economic burdens on the "Company" that exceed a reasonable scope, ⑤ If the "Company" has justifiable and reasonable grounds to determine that advertising materials or "Targeted Medical Treatments" posted by the "User" violate relevant laws and regulations, the "Company's" subordinate policies, guidelines, or other notices on the "Service Administrator Page" or related web pages, or if there is a request from a relevant agency, the "Company" may take necessary measures, such as deleting them without prior notice to the "User."

① Medical expenses prepaid by the User using the "Payment in App" service shall be paid to the "User" according to the settlement schedule separately notified by the "Company." The "Company" may sub-entrust settlement operations to third parties, such as Payment Gateway (PG) companies, and any fees charged by these third parties shall be deducted before payment (hereinafter referred to as the "Settlement Amount"). ② The "User" must register the settlement account and tax invoice issuance information necessary for the settlement of medical expenses prepaid through the "Payment in App" service on the "Service Administrator Page," and must immediately register any changes that occur. ③ If a transfer fails due to errors in the settlement account information registered by the "User," system errors, service suspension, etc., the "Company" may withhold payment of the Settlement Amount until such errors are resolved, and no late interest shall be added during the withholding period. ④ The "Company" may request the "User" to consent to the collection and use, etc., of a business registration certificate, a copy of a bank passbook, an email address for the issuance of tax invoices, etc. (hereinafter referred to as "Business Registration Certificate, etc.") for the issuance of tax invoices and payment of settlement funds. If the "User" does not consent to this, the payment of the "Settlement Fund" may be withheld. ⑤ In the event of a court decision or judgment, such as a provisional attachment, seizure, or collection order, regarding the "Settlement Fund" or other amounts that the "Company" is obligated to pay to the "User" (hereinafter referred to as "Settlement Fund, etc.") upon the application of a third-party creditor of the "User," the "Company" may withhold payment of the "Settlement Fund, etc." to the "User" until said decision or judgment is resolved through an agreement between the "User" and the third-party creditor or the repayment of the debt amount. ⑥ If the "User" violates the provisions of these Terms and Conditions or there are reasonable grounds to suspect such violation, the payment of "Settlement Amounts, etc." may be withheld for a certain period for the purpose of processing or canceling transactions. ⑦ In addition to what is stipulated in this Article, if required by law or if there are reasonable grounds, the "Company" may notify the "User" and withhold payment of all or part of the "Settlement Amounts, etc." for a certain period, or offset it against claims that the "Company" has against the "User."

① The "Company" may temporarily suspend the provision of the "Payment in App" function in any of the following cases. In such cases, the "Company" shall notify the "User" in the manner prescribed in Article 11. However, if there are unavoidable circumstances preventing the "Company" from providing prior notice, notice may be provided subsequently. a. Cases corresponding to reasons for service usage restrictions, etc., pursuant to the "K-Dia Terms and Conditions" b. Cases involving maintenance inspection, replacement, or breakdown of information and communication equipment such as computers, communication interruption, or other significant operational reasons. If prior notice is impossible due to reasons such as communication or power interruption or the inability of information and communication equipment to operate, such facts shall be announced immediately upon restoration. c. In cases where violations of the relevant "K-Dia Terms," ​​subordinate policies, guidelines, etc., or other illegal or unfair acts occur or are reasonably suspected to have occurred, such as the exposure of the "Payment in App" button regarding "Targeted Medical Treatments" designated by the "Company" as subjects for restricting the use of the "Payment in App" function, ② If the "Payment in App" function is suspended pursuant to Paragraph 1, Subparagraph B of this Article, the "Company" shall endeavor to resume the "Payment in App" service as soon as possible. However, this shall be an exception in cases where immediate action is impossible due to the suspension of the "Payment in App" service caused by force majeure, such as natural disasters, war, riots, terrorism, or hacking. ③ The "Company" shall not be liable for any damages incurred by the "User" resulting from the suspension of the "Payment in App" function pursuant to this Article, unless there is intent or gross negligence.

① When the "Company" provides notice to the "User," unless otherwise stipulated in the "Terms of Payment," it may do so through means such as the email address, (mobile) phone number, address provided by the "User," a consent window upon logging into the "Service Manager Page," or user guidance. ② When the "Company" provides notice to all "Users," it may substitute the notice under the preceding paragraph by posting on the "Service Manager Page" or a related webpage. However, for matters that have a significant impact on the "User's" use of the "Service," notice shall be provided using at least two of the notification methods mentioned in the preceding paragraph. ③ The "User" shall provide the "Company" with information such as an email address, (mobile) phone number, and address where actual contact is possible, and shall keep such information up to date and verify the "Company's" notices. ④ The "User" shall not be protected against any disadvantages arising from negligence in fulfilling the obligations under the preceding paragraph.

① The "Company" and the "User" shall compensate the other party for any damages incurred due to causes attributable to their respective faults. ② The "Company" provides only the "In-App Payment" service to the User; the "User" bears responsibility for information regarding "Targeted Medical Treatments," etc., included in advertising materials posted by the "User." In the event of a dispute with the User regarding "Targeted Medical Treatments," the "User" shall bear full responsibility for resolving the issue and shall compensate the "Company" for any damages incurred in connection therewith. ③ The "Company" may provide the User with a method to view the "User's" information, and the "User" shall bear all responsibility arising from failing to provide such information or providing false information.

Rights or obligations under the "Terms of Payment" may not be assigned, disposed of, or transferred without the written consent of the other party.

① The "User" and the "Company" shall maintain confidentiality regarding data, information, etc. concerning the other party obtained during the course of using the service in accordance with the "Payment Terms and Conditions," and shall not disclose or distribute such information to a third party, or use it for any other purpose, without the prior written consent of either party. ② The "User" and the "Company" shall maintain confidentiality regarding all information, including personal information or data of the other party, user information of the other party, or marketing materials, obtained during the course of business in accordance with the "Payment Terms and Conditions." Such information shall not be provided to a third party, used or utilized for any purpose other than service usage in accordance with the "K-Dia Terms and Conditions," nor stored on other media or processed. ③ Notwithstanding Paragraphs 1 and 2 of this Article, confidential information, etc. may be provided if there is a request from a state agency pursuant to relevant regulations such as the Telecommunications Business Act, a request from an investigative agency regarding a criminal investigation, a request from the Information and Communications Ethics Committee or other public institutions, or if provision is mandated in accordance with procedures stipulated by other relevant laws and regulations. However, in this case, you must notify the other party of relevant facts, such as the reason for provision, the content and scope of provision, and the basis for provision, in advance. ④ The obligations regarding information protection and confidentiality under this Article shall remain valid even after the termination of service use or the cancellation of the "Payment Terms and Conditions." ⑤ If the "Payment Terms and Conditions" are cancelled, the "Company" shall return to the "User" all originals and copies of documents and other materials provided by the "User"; if return is impossible, the "Company" shall dispose of or destroy them to the extent that they cannot be reproduced.

① The "User" shall not use the User's personal information provided through the "Company" for purposes other than those specified in the "Payment Terms and Conditions," and in the event of a violation thereof, shall bear all civil and criminal legal liability and indemnify the "Company" at the "User's" own efforts and expenses. ② For the protection of personal information, the "Company" may take measures to make the User's personal information disclosed to the "User" private after a considerable period has elapsed. ③ If, despite the "Company" having exercised considerable care for the protection of personal information, a specific "User" leaks or misappropriates the User's personal information in violation of Paragraph 1, the "User" shall indemnify the "Company" at the "User's" own efforts and expenses. ④ When the "User" processes the User's personal information, the "User" shall take all technical and administrative measures prescribed by relevant laws and regulations to prevent the loss, theft, leakage, alteration, or damage of the personal information. "User" shall limit the number of persons processing the user's personal information to a minimum, and "User" shall destroy personal information that has served its purpose without delay so that it cannot be recovered or reproduced.

① The "Company" may immediately terminate the consignment contract pursuant to the "Payment Terms and Conditions" by written notice in any of the following cases: a. If documents prepared or submitted by the "User" at the time of registration are found to be false. b. If the "User" commits an act in violation of the "K-Dia Terms and Conditions" or violates relevant laws and regulations. c. If the "Service Terms and Conditions" are terminated. d. If the "User" commits or attempts to commit an act that interferes with the "Payment in App" service or the "Company's" business operations. e. If the "User" infringes upon the rights, reputation, credit, or other legitimate interests of other "Users." f. If the "User" registers "Targeted Treatments" subject to restrictions on the use of the "Payment in App" function via "Payment in App," or if widespread user complaints arise or social controversy is caused in relation to "Targeted Treatments," or if the "User" has damaged or is highly likely to damage the "Company's" external image or reputation. g. If normal business activities are difficult due to the "User" filing for bankruptcy, applying for the commencement of liquidation proceedings for the "Company," or applying for composition with creditors. h. If the "Company" determines that it can no longer continuously perform the entrusted tasks due to the termination of the "Payment in App" service or changes in the "Payment in App" service and business policies, etc. i. If other objective and reasonable grounds arise that make it impossible to maintain the entrustment relationship with the "User". ② If the "Company" terminates the entrustment contract pursuant to this Article, it shall notify the "User" in the manner prescribed in Article 11. In this case, the "Company" shall grant the "User" an opportunity to file an objection by setting a reasonable period prior to termination. However, if there are grounds specified in subordinate policies, guidelines, etc., a separate period for filing an objection may not be granted.

Matters not specified in these Terms and Conditions and the interpretation of these Terms and Conditions shall be governed by the "Terms of Service" and subordinate policies and guidelines.

Matters not specified in the service agreement under these Terms and Conditions shall be resolved by mutual agreement between the "Company" and the "User" or in accordance with commercial practices, and any disputes arising in connection with the consignment agreement under these Terms and Conditions may be filed with the competent court under the Civil Procedure Act.

These terms and conditions are effective as of April 21, 2026.