Terms of Service

Basic terms and conditions Notice of main contents of basic terms and conditions 1. These Terms and Conditions are intended to stipulate the basic matters between members and the company. For corporate members, please check the provisions of Chapter 5 of the Basic Terms and Conditions and the ‘Corporate Member Supplementary Terms and Conditions’. 2. The company restricts use of the service by minors or persons with limited abilities. If the company confirms that a minor or a person with limited abilities has registered as a member, the company may withdraw the member without the member's consent. 3. If a user accesses the company's mobile/web page or application by entering the member's account, password, or other information that matches the login information provided to the company in order to use the company's services, all transactions made during the access period are considered to be based on the member's true intention. Therefore, members must maintain the security of their account, password, and other information, and be careful of damage caused by financial accidents or crimes that may occur due to personal information being leaked due to reasons attributable to the member. 4. Since there is no issuing entity for virtual assets (hereinafter referred to as ‘virtual assets’), no third party (including companies) within or outside the country guarantees the value or guarantees payment. Therefore, the value of virtual assets can vary greatly depending on the laws of each country around the world, policies, authoritative interpretation, and economic environment. In particular, the interpretation of legal acts regarding the trading of virtual assets differs from country to country, and as there are inherent risks different from those of fiat currency, members must be careful about this. 5. OPSANI mining service is a service that allows a member to trade virtual assets with other members, send the member's virtual assets stored in the member's account on the OPSANI site to another electronic wallet through the blockchain network, or receive them from another electronic wallet to the member's account on the OPSANI site. Currently, blockchain technology is evaluated as impossible to tamper with by third parties, but this may change at any time due to technological advancement or other unpredictable circumstances. 6. If a member trades virtual assets using the company's services, the transaction details of the virtual assets are recorded in the site transaction service system. The company receives a certain fee for transactions concluded during the virtual asset trading process on the site. 7. When a member sends or receives virtual assets using the company's services, the transaction details of the virtual assets are recorded in the blockchain network so that virtual asset users around the world can verify the authenticity of the transaction, and in the process, a certain fee must be paid to the miner. At this time, if mining difficulty increases or transmission waiting demand exceeds mining supply demand, miners will mine blockchains that pay higher fees first, so the fees paid by the company to miners are subject to volatility. 8. The company strives to provide service 24 hours a day, 365 days a year, but does not guarantee this. If the service is temporarily suspended or an error occurs in the service due to illegal actions by a member or a third party, and problems such as transaction records displayed to members are different from actual records, the company will take measures to ensure that the displayed transaction records correspond to the facts. At this time, the member may request the company to restore the actual records based on the transaction records held by the company. 9. Recently, there have been cases of using virtual assets as a means of telecommunication financial fraud such as smishing and pharming. Therefore, members must take care to avoid any damage due to telecommunication financial fraud. If a telecommunication financial fraud involves an investigation by investigative agencies, judicial agencies, administrative agencies, or other public authorities, and it is necessary to freeze the relevant account or electronic wallet, the company may freeze the relevant account or electronic wallet without the member's consent. 10. If the company incurs damage due to a member's illegal activities, the company may exercise its legal right to claim compensation from the member. Therefore, please be sure to use the company’s services in compliance with the laws.

11. Since trading of virtual assets is carried out at each exchange located in each country, members must evaluate the value of the virtual asset being traded and conduct the transaction at their own risk and expense by checking the market price on the trading service on the site and the price of other exchanges. In particular, other exchanges, including on-site trading services, may conduct server inspections at any time, so there may be a drastic difference between the prices before and after the server inspection. Therefore, if the price of a virtual asset rises or falls rapidly, it is necessary to evaluate whether the market price formed in the on-site transaction service appropriately reflects the value of the virtual asset immediately after the server inspection is completed. 12. The Company does not compensate or indemnify members for damages caused by circumstances unrelated to the Company, such as failures due to reasons attributable to operators or members, including telecommunication business operators under the Telecommunications Business Act, or defects in the blockchain underlying virtual assets. 13. The company may conduct server inspections at any time to provide stable services, and members may trade virtual assets after the server inspection is completed. In particular, when there is concern that members may suffer damages due to computer failures due to a surge in orders, etc., emergency inspections are carried out to the minimum extent necessary to prevent damages that may occur to members due to errors in the transaction system. Chapter 1 General Provisions Article 1 (Purpose) These terms and conditions apply to members (hereinafter referred to as individual members unless otherwise specified. In the case of corporate members, please also check the provisions of Chapter 5 of these terms and conditions) to use the virtual asset (hereinafter referred to as ‘virtual assets’, inclusive of names such as ‘virtual currency’, ‘virtual currency’, etc.) trading service provided by OPSANI Co., Ltd. (hereinafter referred to as ‘company’), including the basic rights, obligations and responsibilities between the company and members, conditions of use and procedures, etc. The purpose is to stipulate matters. Article 2 (Specification, effect and change of terms and conditions) 1. The contents of these Terms and Conditions are posted on the mobile and web page (https://opsani.net) provided by the Company or announced through other means, and become effective when the customer agrees to these Terms and Conditions and becomes a member of the Company. 2. If necessary, the Company may change these Terms and Conditions to the extent that they do not violate relevant laws and regulations. If these terms and conditions are changed, the company will specify the date of application, details of revision, reason for revision, etc. and announce them through the homepage homepage or the screen connected to the homepage at least 30 days prior to the date of application. However, in the case of minor changes that are advantageous to members or do not significantly affect the rights and obligations of members, this may be replaced by notification at least 7 days in advance from the date of application. If there are reasons for which prior notice is difficult, such as enactment or amendment of laws, orders from supervisory authorities, or emergency measures for security, notice may be made without delay immediately or after the change. In this case, the company clearly compares the contents before and after revision and displays them so that members can easily understand them. 3. Even though the company has clearly announced the revised terms and conditions in accordance with the preceding paragraph and at the same time clearly notified that if the member does not express his/her intention to reject the revised terms and conditions by the effective date of the revised terms and conditions, he/she will be deemed to have approved the revised terms and conditions, if the member does not express his/her intention to reject the revised terms and conditions, the revised terms and conditions are deemed to have been approved. If the member does not agree to the revised terms and conditions, the member may terminate the service agreement pursuant to Article 12, Paragraph 1, and separately, the company may withdraw the member. Article 3 (Rules other than terms and conditions) Matters not specified in these Terms and Conditions shall be governed by the relevant laws of each country or the individual terms and conditions or usage guidelines of the services provided by the Company. Chapter 2 Accounts and Management Article 4 (Account Creation)

1. ‘Account (ID)’ is identification information registered and granted to identify members in the service, and consists of the member’s registered email address and identity verification information confirmed through the identity verification service (Google login). An account is created when a member agrees to these terms and conditions, completes the identity verification process through the identity verification service (Google login) required by the company, and the company approves. Even if an account is created in accordance with this paragraph, the company may request the member to perform additional verification procedures, such as submitting a copy of the real name verification certificate to verify the real name, to the extent necessary to comply with relevant laws and regulations. If a member fails to do so, use of the service will be restricted in accordance with Articles 8 and 18. 2. If a member needs an account to use the service, the member must use the account created by entering his/her true information, and must not steal other people's personal information or violate relevant laws in a similar manner. In order to confirm whether the information provided by the member matches the facts, the company may request real name verification or identity verification through a professional organization to the extent permitted by law. 3. In order to prevent illegal use of the service, if a member cancels (withdraws) the service agreement, re-enrollment (creation of a new account) of the service is restricted for 24 hours from the time of withdrawal. Additionally, if the member has re-enrolled more than 5 times within 1 year, the company may restrict the member from re-enrolling for 1 year from the first withdrawal. In these Terms and Conditions, ‘re-enrollment’ refers to the same person applying to create an account again after withdrawal, and the determination of ‘same person’ is made by combining information necessary for member identification, such as mobile phone authentication information, name, date of birth, and contact information. The company may apply an exception to the re-enrollment restriction only if the member demonstrates through the customer center that there was a reasonable reason for reversing re-enrollment after withdrawal. In order to apply and manage the above restrictions, the company may collect, use and store the minimum necessary identification information within the scope permitted by relevant laws, and the specific collection purpose, items, retention and use period, etc. are subject to the personal information processing policy. 4. The company may require separate consent to the individual service terms and conditions in the detailed guidelines for specific services provided by the company. In this case, members can freely agree to the individual service terms and conditions in one account and use individual services within the agreed range. 5. If you agree to these terms and conditions and sign up for the service, members can use the company's OPSANI mining service. Article 5 (Account creation refusal and reservation) 1. The company may not approve the creation of a customer's account in the following cases, and in particular, minors or persons with limited abilities may not create an account. If the company deletes the member's account If a member attempts to create an account by stealing another person's name or personal information (identification information, email address, etc.) or using false information. If you do not enter the required information when creating an account or enter false information If the act of using this service constitutes, or there is a significant risk of constituting, a violation of the applicable law in accordance with the laws of the country in effect in the member's place of residence. If it is confirmed that a minor or person with limited capacity has registered as a member without the consent of his/her legal representative If it is confirmed that a member has violated the law while using the service If it is confirmed that it has been used as a tool for telecommunication financial fraud, etc. or that victim assets have been deposited or withdrawn due to telecommunication financial fraud, etc. In the case of applying for withdrawal even though an account has been created according to the member's request, or applying for the same account even though the withdrawal process has been completed, etc. If a member is subject to restrictions on re-enrollment after withdrawal pursuant to Article 4, Paragraph 3 If a member's personal information has been leaked or is judged to have been leaked If the company incurs damage due to a member's illegal actions while using the service. If the company is unable to create a new account due to new, changed, or abolished policies of the government or affiliated organizations, etc. If there is a significant concern that the company's action in approving the creation of a member's account may be perceived as a violation of the law. When a non-resident applies to create an account If identity verification is not achieved through the identity verification service required by the company, or if the member refuses or stops performing the identity verification process If the identity verification result and the information entered by the member do not match

2. If it is determined that a member has created an account in violation of any of the provisions of Paragraph 1, the Company may immediately suspend the member's use of the service or impose appropriate restrictions, such as terminating the service agreement. 3. In the following cases, the company may withhold or refuse the member's account creation despite the member's account application. When there is no realistic room for the provided service facility capacity If it is determined that there is a problem with the technical aspect of providing the service In other cases where the company recognizes that reservation is necessary financially or technically If the member has violated these terms and conditions while using the service in the past and the service agreement has been terminated If a member is subject to restrictions on re-enrollment after withdrawal pursuant to Article 4, Paragraph 3 Article 6 (Account Management) 1. The account can only be used by the member, and under no circumstances can another person be allowed to use the member's account. Additionally, members must personally manage authentication methods such as passwords and certificates to prevent others from using the member's account without permission. As soon as a member discovers unauthorized use, the member must notify the company through the customer center, and the company may immediately take action such as suspending use of the account. 2. Members can view and modify their information through the settings screen within the service. However, it may not be possible to edit account, phone number, and some personally identifiable information required for service provision and management. If there is a change in the information notified when applying to use the service, the member must correct the changed information directly within the service or request the company to update the changed information through email or customer service center, and must maintain the most up-to-date information. 3. If the account and password registered by the member match those registered with the company, the company considers the user to be a member without a separate verification process. 4. If a member's account information is stolen by a third party and used for illegal activities without any reason attributable to the Company, the member may be liable for damages to those who have suffered damage due to the illegal activity, including victims of telecommunications financial fraud, so please be especially careful. 5. Even though the company has notified the member of important information according to the service agreement to the e-mail address and phone number entered by the member in the service information, the member must bear any disadvantages arising from the member's failure to fulfill the obligations under paragraph 2. 6. The company is implementing a one-member-one-account policy in order to comply with the real-name deposit/withdrawal account system implemented as part of the government's virtual asset market regulations for each country. Members must use an account in their own name, and cannot use more than one account without separate agreement with the company. Chapter 3 Use of Services Article 7 (Service provision and change) 1. The company provides a variety of services that members can enjoy on the Internet and mobile devices, such as bulletin board services and site mining services. Members can use the service by accessing mobile/web pages and applications. 2. Among the various services provided to members, the company may request consent to individual terms and conditions of use, etc., if relevant laws or technical requirements exist depending on the nature of the service. In this case, members can use individual services in accordance with the terms and conditions to which they have agreed. 3. In order to provide better service, the company may display various information, including various notices, management messages, and other advertisements related to the use of the service to members, on the service or send them directly to the member's e-mail, SMS, etc. 4. If a system error, including an individual program, occurs while using the service, the company may delete incorrect information caused by the error, restore or display the actual information, and in some cases, transaction information may be initialized to the specific time immediately before the error occurred. At this time, if the incorrect information displayed at the time of recognition of the occurrence of a system error is changed, the error is corrected and the actual information is displayed, so the member can exercise rights or assume obligations based on the service based on the actual information. 5. Communication and financial costs incurred during the member's use of the service are compensation for the use of the member's communication and financial services and have nothing to do with the company. Article 8 (How to use the service and precautions) 1. Members can freely use the service, but use of the service may be restricted within the scope below.

Members cannot interfere with the company's provision of services, and cannot use the service using any methods other than those permitted by the company. Unauthorized collection and use of information of other service users, use of the service for members' business or commercial purposes (exceptions may be permitted only in cases where a separate contract with the company is concluded), sending or posting information that violates public order and morals and laws, criminal acts, lending or transferring account information, and providing collateral are prohibited. Copying, modifying, distributing, selling, transferring, renting, providing as collateral, or allowing others to use the Service or any part of the software included therein without the consent of the Company, as well as copying, disassembling, imitating or otherwise modifying the Service, such as reverse engineering the software or attempting to extract the source code, are also prohibited. Members may not engage in acts that violate country-specific laws or laws governing the member’s place of residence. If the user's identity is not confirmed because the member has not completed the customer verification and identity verification procedures required by relevant laws and regulations for use of the service, or if the customer verification procedure in Article 14, Paragraph 2 has not been completed, the use of the transaction service is restricted. In particular, if the customer verification procedure in Article 14, Paragraph 2 is not implemented, compensation for login, airdrop, and staking services already participated will be maintained, but unsettled transaction orders will be canceled. If a member does not register a real name verification deposit/withdrawal account, payment will be made in the form of P point deposit/withdrawal and the virtual asset USDT. If a member is a citizen, citizen, permanent resident, resident, etc. of a country or region that does not implement or cooperate with international standards announced by the Financial Action Task Force (FATF), or uses the service while staying in a country that does not implement or cooperates with international standards, use of the service may be restricted. 2. Members may not lend, transfer, gift, or provide as collateral the right to use the service, claims/debts with the company resulting from the use of the service, or other contractual positions to others, and the company is not responsible for any disadvantages resulting from this. 3. If a member does not comply with relevant laws or all of the company's terms and conditions or policies, the company may investigate the member's violation, temporarily or continuously suspend the member's use of the service, and may place restrictions on the member's re-enrollment in the service. 4. If a member resides in a place where the use of the company's service violates or is likely to violate local laws, the member must confirm that disadvantages may arise due to the member's use of the service. In particular, if the Company determines where the Member resides and finds that the Member's use of the Service constitutes or is likely to constitute a violation of local laws (e.g., when an investigation by an internal or external investigative agency in each country is initiated regarding the Member's use of the Service), the Company may immediately initiate account suspension procedures, notwithstanding the provisions of Article 18, Paragraph 5. 5. In the event of a court order, a request for investigative cooperation from an investigative agency, or a government agency's written request to freeze the member's account and electronic wallet, the company may freeze the account and electronic wallet without the member's consent and simultaneously initiate procedures for account suspension, notwithstanding the provisions of Article 18, Paragraph 5. 6. The Company collects, generates, uses, stores, and distributes information created or collected in order to fulfill the obligations of virtual asset business operators stipulated in the Act on Reporting and Use of Specific Financial Transaction Information, the Act on Protection of Virtual Asset Users, etc., and related laws, as well as information created or collected in the process of providing services to members, to third parties (Financial Intelligence Unit, other virtual asset business operators, banks providing real-name verification deposit/withdrawal account services, deposit management institutions in accordance with the Act on Protection of Virtual Asset Users, etc. (institutions stipulated by relevant laws and regulations) may be provided. The company may provide detailed information on the above types of member information, transaction details, etc., provision procedures and methods, and scope of services according to the authentication stage, etc. in its operating policy, usage information, and user guide.

7. The company must keep records that can track and search the contents of virtual asset transactions, such as sales, or confirm or correct them if errors occur in the contents (hereinafter “virtual asset transaction records”), in accordance with the procedures and methods set forth in the Act on the Protection of Virtual Asset Users and related laws and regulations, for 15 years from the time the transaction relationship is terminated. The standard for when the transaction relationship is terminated is the date on which the transaction relationship between the company and the member ended due to the expiration of the contract period, the exercise of the right to terminate, the right to cancel, the right to cancel, the completion of the statute of limitations, the extinction of claims due to repayment, etc., in accordance with relevant laws, terms and conditions, or agreements, etc. 8. If the company is entrusted with the storage of virtual assets from a member and stores them, it must prepare a user list that contains the member's address and name, the type and quantity of virtual assets entrusted by the member, and the member's virtual asset address (refers to a unique identification number generated electronically to manage the transmission records and storage details of virtual assets). 9. If the company is entrusted with the storage of virtual assets, the member's virtual assets may be entrusted and stored to an organization that meets the security standards set forth in the Act on the Protection of Virtual Asset Users, etc. and related laws. Article 9 (Attribution of rights and use of copyrighted works) 1. Members may post content (hereinafter referred to as ‘posts’), such as photos, text, information, (video), and opinions or suggestions about the service, on the service in a manner permitted by the company. 2. When posting, you cannot include content that may violate Article 10 of the Act on the Protection of Virtual Asset Users (hereinafter referred to as the ‘Virtual Asset User Protection Act’), such as undisclosed important information about a specific virtual asset or information that has the risk of manipulating its market price. In principle, if an illegal act is committed that violates related laws such as the Virtual Asset User Protection Act through a post, the member who created it must bear the responsibility, and the company is not responsible unless there is a cause attributable to it. 3. The company may inspect members' postings to ensure and maintain soundness, transparency, and usefulness, prevent disruption of market order, and protect members. In the following cases, if the company determines that it violates relevant laws and service policies (including individual service usage regulations), it may arbitrarily delete or refuse posting and restrict service use without notice. In addition, if a posting that violates the service policy is discovered, such as containing false information or infringing on the rights of other members, the member may request the company to review the posting. In this case, the company may review the posting in accordance with this paragraph and take disciplinary action such as deleting the posting without notice or restricting the member from using the service. If the member's nickname or post contains profanity or slander, curses or superstitious remarks, insults or defamation, obscene or lascivious content, or other unwholesome or content that causes discomfort to other customers (regardless of the form of expression such as slang, slang, consonants, vowels, numbers, etc.) If the post contains content that may be suspected of stealing or impersonating another person or infringing upon the intellectual property rights of another person. If the post contains personal contact information (including phone number, email, chat site profile, chat room ID, etc.) of the author or another person If you promote, advertise, or sell a third party or service for financial purposes without obtaining the company's prior consent in the post [this includes cases where you request sponsorship by exposing your personal referral code, your account or virtual currency wallet address, or when you promote other communities] If the post contains promotions, introductions, advertisements, etc. for (quasi) investment advisory business, collective investment business, loan business, investment association, etc. If the post contains content that may be suspected of being related to the spread of rumors, fraud, leakage of undisclosed important information, or other illegal transactions or acts that disrupt market order (including promotion, introduction, advertisement, or solicitation, temptation, scheme, etc. of participation by organizations or forces related to controlled trading, buying or selling through joint conspiracy, submission of false quotations, or other market manipulation activities) When excessive buying and selling of a specific virtual asset is encouraged without any basis If the post contains promotions or advertisements for products or services unrelated to investment If the post contains political debate or criticism unrelated to investment When posts with the same or similar content are posted repeatedly several times

If the posting infringes on the rights of others, such as invasion of privacy, defamation, insult, or unauthorized use of copyrighted work. If there is a risk that another member's real name will be disclosed due to a post In addition, if it is determined that the posting interferes with the company's normal service operation or other business. 4. As a virtual asset business operator, the Company manages posts to ensure that they do not violate user protection and maintenance of sound transaction order in accordance with the Virtual Asset User Protection Act. If an illegal act such as an unfair trade practice is suspected in relation to a specific post, or if a request for investigation or action regarding illegal acts is received from the Financial Services Commission, Financial Supervisory Service, Korea Financial Intelligence Unit, or other similar organizations, the company may report the matter to the above-mentioned institution or submit related materials. Article 10 (Use of paid services) 1. The company provides services for free, but some services may be provided for a fee. For example, members can post for free, but if they use a site mining service, they must pay the company a fee for using the service. 2. If a member uses a paid service provided by the company, the member must pay for the use of the service in a manner determined by the company. If a service requires regular payment, payment is made monthly unless the member directly stops using the service and requests cancellation of the regular payment. 3. The company may request additional personal information from members necessary to fulfill payment, and members must accurately provide personal information requested by the company. 4. Even if a member requests a refund of the usage fee due to the member's fault, if the paid service provided by the company is a service that requires use or purchase of the service with only one use after payment, a refund is not possible after using the service. Additionally, if the company restricts the member's use of the service or terminates the contract due to the member's violation of these Terms and Conditions, the company has no obligation to provide a refund to the member. 5. Notwithstanding the provisions of Paragraph 4, the Company will refund the amount paid by the member in any of the following cases. If a member is unable to use the service at all due to reasons attributable to the company If the service requested by the member is not provided at all 6. Members may raise objections to usage fees. However, objections regarding usage fees must be raised within 1 month from the date the reason arises and within 3 months from the date the reason arises. If an objection is not raised within the above period, the member's rights related to the objection will lapse. 7. In the event of an overcharge or a full refund, the company will refund the service fee using the same method as payment. However, in cases where a refund is not possible through the same method or a partial refund occurs due to early termination of the service, a refund will be made using a separate method determined by the company. 8. If there is a conflict between the provisions of these Terms and Conditions and the contents of the individual service terms and conditions, the provisions of each individual agreement shall apply. Article 11 (Use, change and termination of service) 1. The company does its best to provide services 24 hours a day, 365 days a year. However, the provision of the service may be temporarily suspended for regular or temporary inspections for equipment maintenance and repair or for other reasonable reasons, and in this case, notice will be announced in advance on the service provision screen. If the service is interrupted for reasons that the company cannot foresee, the company will try to restore the service as soon as possible as soon as the company understands the situation. 2. The content of the service may be changed or the service may be terminated for reasons such as termination or change of the contract with the company's partner company contracted to provide the company's service, launch of a new service, or decision to terminate transaction support for a specific virtual asset according to the transaction support policy. The company posts service changes or terminations on the initial service screen, individual service screens, or in the notice section. Article 12 (Termination of Service Agreement) 1. If a member does not wish to use the service or does not agree to these terms and conditions, the member may apply for termination of the service use agreement at any time using the menu provided within the service or the customer center, and the company will process the request and withdraw the member in accordance with the provisions of the law. However, the Company shall not be liable for any damage incurred by the Member without the Company's intention or negligence in the process of terminating the Service Use Agreement upon the Member's request.

2. If a member terminates the service agreement while the remaining balance is less than the OPSANI minimum withdrawal amount, the balance will be forfeited. However, members may pay a fee and request withdrawal of the remaining balance from the customer center. 3. If a member terminates the service agreement, the assets delegated using the staking service prior to that date and the rewards generated therefrom may not be returned. Before withdrawal, members can cancel delegation in accordance with the product policy within the staking service, retrieve rewards, and then withdraw them. 4. If a member terminates the service agreement, the member may lose the right to any additional amounts (airdrop, hard fork, etc.) that may occur for virtual assets held prior to termination of the agreement. 5. If a member violates the law, these Terms and Conditions or individual Terms and Conditions or commits other acts against public order and morals more than two times by using the service with the same act, or if the conditions for lifting the suspension or use restrictions are not achieved within 30 days despite measures to suspend or restrict the use of all or part of the services provided by the Company, the Company will initiate the procedure stipulated in Paragraph 5 of Article 18 or notify the member of the scheduled termination of the service agreement and give an opportunity for explanation for at least 30 days. You may cancel the service agreement. 6. When the service agreement is terminated in accordance with the preceding paragraph, all benefits obtained through the use of the service will be extinguished, and the company will not separately compensate for this. 7. If a member cancels (withdraws) the service agreement, re-registration (account creation) is restricted for 24 hours from the time of termination. Additionally, if the member has re-enrolled more than 5 times within a year, the company may restrict the member's re-enrollment for 1 year from the time of withdrawal. 8. When the service agreement is terminated, the company will destroy all member information and will not restore it. However, member information that must be stored in accordance with relevant laws and personal information processing policies is safely separated and stored for a certain period of time. 9. If a paid service contract is used, the member can only receive a refund as stipulated in Article 10 of these Terms and Conditions, and cannot request a refund in any other way. However, if the individual service terms and conditions stipulate a method and effect of contract termination that is different from these terms and conditions, the provisions of each individual terms and conditions shall apply. 10. If you terminate the service agreement while there are assets that cannot be reflected in deposits, member information may be deleted, making it impossible to identify the owner of the assets, and the company is not responsible for any damage caused to the member as a result. However, members may pay a fee and request withdrawal of their assets from the customer center. 11. Even if the service agreement is terminated, the member may apply to enter into a service agreement with the company again. However, when concluding a new service agreement, time restrictions and restrictions under these Terms and Conditions may apply. 12. The company may terminate the transaction and terminate the service agreement with the member if any of the following reasons arise for the member. At this time, the company may take action against the member under Article 18, Paragraph 5. If the customer identity in Article 14 is false When it is difficult to achieve the purpose of the contract due to violation of related laws such as the Specific Financial Information Act due to the member's intentional negligence 13. Notwithstanding Paragraph 1, if action is taken in accordance with Article 18 regarding the member's account, the Company may suspend processing of the member's application for termination of service agreement until the action is completed or the procedure under the relevant law is completed to the extent necessary for the implementation of procedures in accordance with relevant laws and regulations. In this case, the company will notify the member of the reason in accordance with Article 23, Paragraph 2. Article 13 (Protection of Personal Information) A member's personal information is used only for the purpose and scope agreed upon by the member in order to provide services smoothly. The company does not provide members' personal information to third parties unless required by law or unless the member separately consents. Detailed information on this is provided in the personal information processing policy. Article 14 (Customer Verification) 1. In order to comply with the Specific Financial Information Act and prevent money laundering and public threat financing using the service, the company verifies the following customer identity information (hereinafter referred to as “customer identity”). Individual: real name, address, contact information Deposit: If money laundering is suspected, pay the deposit designated by the company. If money laundering is not applicable, the deposit can be transferred immediately.

2. Even after verifying customer identity, the company may periodically verify customer identity in accordance with relevant laws and regulations. Members must submit relevant materials in accordance with the customer identity verification procedures required by the company. Chapter 4 Description of Services Article 15 (Definition of terms) The definitions of terms used in this chapter are as follows (in addition to this chapter, as far as the context allows, terms used in these terms and conditions shall follow the definitions of Article 15), and the definitions of terms not defined in this article shall follow the definitions of terms and equivalent terms commonly used in the same industry as the business in which the company operates. However, if there is no legal definition of virtual assets in the Republic of Korea, the definition of terms under this Article does not guarantee the legal nature of virtual assets or the interpretation of laws that have not been established, and please note that government agencies and judicial agencies are not bound by the definitions of terms stipulated in these Terms and Conditions even if there is a dispute between the parties to which these Terms and Conditions apply. 1. Virtual asset: Information that exists electronically in a blockchain network based on Bitcoin (BTC), Ethereum (ETH), and Ethereum Classic (ETC), and is traded through the site transaction service. Unless otherwise specified in these Terms and Conditions, ‘virtual asset’ has the same meaning as ‘virtual asset’ defined in the Act on the Protection of Virtual Asset Users, etc. Members have the right to withdraw virtual assets equivalent to the amount of ‘virtual assets’ in their account from the company during the service provision period in accordance with these Terms and Conditions. 2. P Point (P): A virtual payment method recognized by the company that is used within the service to use the service and can be exchanged for cash while the member uses the company's service. Members have the right to claim cash withdrawal from the company (i.e., right to claim refund of deposit) equal to the value of ‘P Points’ in their account. 3. Electronic wallet: A means of issuing and managing electronic wallet addresses as a unique information unit that can identify users of virtual assets on a blockchain network. 4. Real name: This refers to the real name under the law on reporting and use of specific financial transaction information, and in the case of an individual, includes the name and real name number. Article 16 (Contents of site transaction services) 1. The company provides a service (hereinafter referred to as ‘OPSANI trading service’) that allows members to trade Bitcoin (BTC), Ethereum (ETH), Ether Classic (ETC) and similar virtual assets (hereinafter, Bitcoin (BTC), Ethereum (ETH), Ether Classic (ETC) and similar virtual assets are collectively referred to as ‘virtual assets’) on the company’s mobile/web page and application. 2. The Company may provide the following services incidental to the OPSANI transaction service. Information related to virtual assets Providing member account information such as account balance, transaction history, and order range Virtual Asset Mining Virtual asset transmission and reception service Virtual asset storage and management service Services provided by other companies 3. Members must use the OPSANI transaction service in a manner permitted by the service provided by the company. 4. The Company may provide separate services in addition to the site transaction service, and matters related to this are stipulated in the individual service terms and conditions. 5. The Company may change or discontinue the contents of the OPSANI transaction service in unavoidable cases due to the company's circumstances and the enactment or revision of related laws, or in the unavoidable case of deciding to terminate transaction support for member protection due to reasons for termination of transaction support specified in the Company's transaction support policy for a specific virtual asset. Even if the OPSANI transaction service is interrupted, the company establishes and faithfully carries out procedures to return virtual assets to members for which the transaction service is interrupted, and bears obligations in accordance with Article 19 Paragraph 1, Article 19-2, and Article 19-3 with respect to P Points. Members have the right to claim cash withdrawal from the company (i.e., right to claim refund of deposit) equal to the value of ‘P Points’ in their account.

6. If transaction support is terminated pursuant to Paragraph 5 and a return procedure for virtual assets is required, the company will provide information on the return procedure in advance through a notice on the OPSANI Internet website (www.opsani.net). In order for the company to return virtual assets, the member's cooperation is essential. In particular, if the member does not provide the e-wallet address to receive the return, the company cannot return it. Therefore, members who wish to receive a return must provide an e-wallet address (this must be an e-wallet address provided by a business other than OPSANI or a personal e-wallet address) according to the company's instructions. If the company is requested to return a virtual asset, if it objectively determines that the return is possible considering technical, economic, and legal circumstances, it may process the return of the virtual asset to the member in question. 7. If transaction support for virtual assets is terminated pursuant to Paragraph 5, the Company will support members’ withdrawal of virtual assets for a certain period from the date of termination of transaction support. Specific details, such as the withdrawal period and processing method after the period has elapsed, and the treatment plan for unclaimed assets within the withdrawal period, shall be subject to notices separately determined and published by the Company. 8. If the Company determines that the transfer of virtual assets is objectively impossible and that the status is difficult to recover due to reasons such as network interruption, permanent suspension of smart contracts, or dissolution of the issuing entity, the company may notify the member in accordance with Article 23, Paragraph 2 of these Terms and Conditions, grant an objection period of at least one week, and then deduct the balance of the virtual assets. If the member agrees, the balance may be deducted even before the end of the objection period. Article 16-2 (Contents of Mining Services) 1. Depending on the characteristics of the blockchain, the company provides a service (hereinafter referred to as ‘mining service’) that allows members to participate in specific activities required by the blockchain of the virtual asset with specific virtual assets mined on the OPSANI site exchange and receive rewards from such participation. 2. Mining service is a service provided by the company so that members can receive compensation that may occur according to the rules on the blockchain of the virtual asset when they hold a specific virtual asset on the OPSANI site exchange. Under no circumstances will the company guarantee payment of principal/investment or other equivalent money to members or promise profits in relation to the mining service. 3. The company may apply different details regarding mining services for each virtual asset, and this will be disclosed on the company's mobile/web pages and applications regarding the use of mining services. 4. Depending on the member's consent, the company may participate in the mining service with all or part of the virtual assets belonging to the member that are subject to the mining service. 5. Depending on the virtual asset policy, there may be restrictions on the deposit/withdrawal function of virtual assets participating in mining services for a certain period of time. Among mining services, the free mining service prepares to immediately take action on a member's normal withdrawal request without involving a portion of the member's virtual assets in blockchain activities. 6. The company may change or discontinue the contents of the mining service in unavoidable cases, such as the company's circumstances, enactment or revision of related laws, or changes to the blockchain related to the mining service. 7. Notwithstanding Paragraph 2, if the Company provides a mining service that involves receiving compensation through activities on the blockchain that involves the transfer of virtual assets out of an electronic wallet, the Company provides the service by specifying the relevant details in the individual terms of use. 8. Mining service can be used as a paid service in the store, and free services are also available. Article 16-4 (Contents of VIP Service) 1. The company may provide members with services that provide preferential benefits in relation to the use of OPSANI mining services (hereinafter referred to as ‘VIP services’). 2. The company selects recipients of the VIP service by comprehensively reviewing the information held by the company, including the member's transaction performance, according to internal standards, without a separate application from the member. The company provides an overview of the selection criteria through mobile/web pages, applications, or notices, and the detailed calculation method may not be disclosed for the sake of fair operation and prevention of fraudulent use.

3. Benefits of VIP services may include dedicated customer support (hotline), community-only symbols (badges), etc., and the details of specific benefits and application conditions are determined and announced by the company. 4. When the company processes a member's personal information in accordance with Paragraph 2, specific details such as the purpose, items, basis, and retention period of the processing shall be governed by the personal information processing policy. 5. The company may change the contents of the VIP service or terminate the VIP service if there are reasonable grounds, such as the company's circumstances, enactment or revision of related laws, or changes in policy. In this case, the company determines the reason and application period and provides advance notice through mobile/web pages, applications, or notices. However, in the case of new or expanded benefits advantageous to members, they can be applied immediately without prior notice. 6. The company may change or discontinue the contents of the mining service in unavoidable cases, such as the company's circumstances, enactment or revision of related laws, or changes to the blockchain related to the mining service. 7. VIP service is an additional preferential benefit provided by the company, and the company does not guarantee that a member will be selected as a VIP or maintain that status. If a member does not meet the selection criteria or there are any of the following reasons, the company may exclude the member from VIP service, and in this case, the company will notify the member of this fact. If transaction results are formed through illegal methods such as borrowed-name trading or market manipulation, or if VIP services are used illegally. In case of violation of relevant laws or these Terms and Conditions In case there are other reasons equivalent to subparagraph 1 or 2 Article 17 (Method of using mining service and payment for use) 1. The company provides a service to trade virtual assets according to the transaction price (including market price and limit price) agreed upon among members. 2. Depending on how the service provided by the company is used, the member enters a sell or buy order by specifying a certain desired price (or specifying the market price) for the virtual asset held in the member account, and a sales contract between members is concluded as soon as the transaction intention with other members agrees with the content corresponding to the entered order. At this time, due to communication technology failures, the reflection of the results of the sales contract may be temporarily delayed on the member's terminal even though the sales contract has been concluded. Please use the service in a smooth communication environment. 3. Depending on how the member uses the services provided by the company, the member may transfer or receive virtual assets held in the member account to an electronic wallet designated by the member. In this case, the sending and receiving is completed after the time required to carry out the necessary procedures within the blockchain to which the virtual asset belongs has elapsed. The company only carries out the task of transferring virtual assets to the electronic wallet designated by the member, and the transfer of virtual assets takes place on a blockchain network unrelated to the company. The company pays a blockchain transfer fee within the range of the withdrawal fee collected from members, and the transfer time varies depending on the state of the blockchain (if mining difficulty increases or the waiting demand for transfer exceeds the mining supply, miners mine the blockchain that pays the higher fee first). 4. If any of the following circumstances arise, the Company may ex officio cancel and restore transactions, including sales and purchases, under Paragraphs 2 and 3. However, if the virtual asset transmission details have already been recorded on the blockchain before taking ex officio cancellation and restoration measures, restoration will be made in accordance with the following provisions. For the portion of virtual asset transmission for which the member did not request withdrawal of virtual assets, the member must return to the company the same amount of virtual assets as the amount recorded in the transmission history that exceeds the amount deducted from the assets of the member account due to the member's withdrawal request without delay from the time the member receives the company's return request. If the Company receives a request from a member to return the amount of virtual assets recorded in the deposit/transmission history or to reflect the amount in the member's account balance, the Company determines that processing is possible objectively, taking into account technical, economic, and legal circumstances. If it is confirmed that the member in question is the same as the person who transmitted the virtual assets, the company may process the request according to the member's request.

5. Members must pay the company compensation for using OPSANI mining services. The compensation for using the OPSANI mining service is specified in the method of using the OPSANI mining service on the company's mobile/web page and application, and the company may revise and announce the compensation for use at any time depending on the market and company circumstances, and earn the compensation for the revised contents from the effective date specified on the announcement date. Article 17-2 (Method of using mining services and compensation) 1. The company provides mining services so that members can participate in the blockchain using virtual assets stored in the electronic wallet of the OPSANI site exchange according to the functions implemented in the blockchain of a specific virtual asset. 2. The company utilizes specific virtual assets held in the OPSANI site exchange electronic wallet as a mining service in accordance with the member's consent. 3. The company provides mining services only to members who have given separate consent. 4. The company may deduct the cost of providing mining services to members from the compensation to be paid to members. The company discloses details regarding the use of staking services on the company's mobile/web pages and applications regarding deductions for costs incurred in providing mining services. The company may revise and announce costs and deductions at any time depending on the market and company circumstances, and apply the revised costs and deductions from the effective date specified on the announcement date. Article 18 (Service use restrictions and precautions) 1. The Company may restrict members' use of the service in accordance with the standards below (however, the suspension of virtual assets or deposits and withdrawals is not limited to the reasons listed in the standards below, and is suspended in accordance with justifiable reasons and procedures that allow blocking of deposits or withdrawals of virtual assets as stipulated in the Act on the Protection of Virtual Asset Users, etc. and related laws). In this case, the company determines the reason, date, and period and notifies in advance via e-mail, SMS, etc. according to the information provided by the member. However, if there is an urgent reason for which it is practically impossible to notify in advance, the company may notify while minimizing restrictions on the member. Members may file an objection regarding the company's service use restrictions within 7 days from the date of notification. However, notification, objection, period and release of measures pursuant to the Special Act on Prevention of Damage from Telecommunications Financial Fraud and Refund of Victim Assets shall be subject to the provisions of the same Act and related laws. 2. The company may cancel unfinished orders and/or suspend service use for members whose customer identity is false or has not been confirmed and for whom customer identity verification data has not been submitted. Article 18-2 (Deposit and withdrawal limits) 1. The Company may set and operate daily deposit and withdrawal limits for members' P points and virtual assets in order to prevent money laundering and public threat financing, prevent financial accidents such as telecommunication financial fraud, and protect member assets. 2. The limit in Paragraph 1 may be determined differently depending on the member authentication stage, whether or not a real-name verification deposit/withdrawal account is registered, and the status of the account (including the distinction between limited and normal accounts in accordance with the Korea Federation of Banks’ “Real-name Account Management Guidelines for Virtual Assets”). 3. Members may apply for a change in the limit in Paragraph 1 within the scope set by the company in accordance with the procedures set by the company, and the company will apply it after review. 4. The Company provides detailed information regarding the limits under Paragraph 1 through the deposit/withdrawal screen of mobile/web pages and applications, usage instructions ([Deposit/Withdrawal Information]), or notices. If the company changes the limit unfavorably to the member, it will clearly state the details and reason for the change and notify the member 30 days prior to the effective date and notify the member in accordance with Article 23, Paragraph 2. However, in cases where the limit is newly established or increased to the benefit of the member or the limit is urgently reduced or restricted pursuant to Paragraph 7 of this Article, it may be applied immediately without prior notice or notified after the fact. 5. For applications for deposits or withdrawals that exceed the limits set forth in Paragraph 1, the Company may refuse to process the excess portion. In this case, the company will immediately inform you of the reason and the applied limit through the screen.

6. If the Company has reasonable grounds to suspect that a member's account has been stolen or is being used illegally (when a large amount of withdrawal is attempted after a long period of inactivity or non-transaction, when access to multiple accounts using the same IP is confirmed, etc.), the Company may temporarily reduce the limit under Paragraph 1 for the member in question to the minimum necessary range. In this case, the company will notify the member of the reason and period in accordance with Article 23, Paragraph 2, and the member may file an objection within 7 days from the date of notification, and the company will restore the original limit without delay when the reason is resolved. 7. Delays in virtual asset withdrawals for the prevention of telecommunication financial fraud, etc. shall be subject to the provisions of the “Restrictions on Some Services (Login, Deposit, Withdrawal)” section of the [Table] of Article 18, Paragraph 1. Supplementary provisions Article 1 (Enforcement Date) These terms and conditions apply from October 1, 2026. Article 2 (Transitional Measures) The account of a member who created an email address as an account before the enforcement of these Terms and Conditions is considered to be an account created in accordance with these Terms and Conditions. The Company may request existing members to carry out the identity verification process in accordance with Article 4 of these Terms and Conditions. Even for reasons that occurred before the enforcement of these Terms and Conditions, if the Company takes action pursuant to Article 18 after the enforcement of these Terms and Conditions, these Terms and Conditions will apply. However, this does not affect the effectiveness of measures taken pursuant to the previous terms and conditions before the enforcement of these terms and conditions. OPSANI uses AI to visualize and mine data transmission, data computation, and mining. The mining speed, rewards, and points displayed on the screen are a visualization of the actual mined data. Members must safely manage their account information and password, and must not steal other people's accounts, use automated programs, engage in illegal activities, or engage in any actions that interfere with the operation of the service.