Privacy Policy

1 Information We Collect

We collect information that you voluntarily provide to us when you express an interest in obtaining more information about our products or services, when you register on our platform, place an order, subscribe to a newsletter, fill out a form, or otherwise contact us. The categories of personal information we may collect include, but are not limited to:

• Identity Information: Full name, company name, job title, and similar identifiers used to establish your identity in our records.
• Contact Information: Email address, phone number, physical mailing address, and other details that allow us to communicate with you.
• Account Credentials: Username, password, and security questions used to protect access to your account.
• Transaction Information: Records of products or services purchased, pricing, payment method details (credit card last four digits, billing address, transaction dates), and order history.
• Correspondence Data: The content of any messages, inquiries, or support requests you send to us, including email communications and chat transcripts.
• Usage Information: Information about how you interact with our website, including pages visited, time spent on each page, referring URL, browser type and version, device type, operating system, and similar technical data collected automatically through our servers and analytics tools.

We may also collect information from publicly available sources or from third-party service providers where permitted by applicable law. When you visit our website, our servers automatically log certain standard data sent by your browser. This is considered technical data and does not typically reveal your identity, but it may be considered personal information under certain data protection regimes when combined with other identifiers.

We do not intentionally collect sensitive categories of personal data (such as health information, racial or ethnic origin, political opinions, religious beliefs, or biometric data) unless required by law or explicitly consented to by you in a specific context.

2 How We Use Your Information

We use the personal information we collect for a variety of business purposes that are necessary to provide you with a high-quality experience and to fulfil our contractual obligations to you. The principal purposes for which we process your data are described below:

• Service Delivery: To process your orders, manage your account, deliver products or services you have requested, process payments, and send order confirmations or status updates.
• Customer Support: To respond to your inquiries, troubleshoot technical issues, provide assistance, and resolve complaints or disputes in a timely manner.
• Communication: To send you administrative information such as changes to our terms, conditions, and policies, as well as service-related announcements that we are required to send.
• Marketing and Promotions: With your consent where required by applicable law, we may send you promotional emails, special offers, newsletters, and other marketing communications about our products and services. You may opt out at any time by following the unsubscribe instructions included in every such communication.
• Improvement and Analytics: To analyse usage trends, measure the effectiveness of our website and marketing campaigns, and improve our product offerings, user interface, and overall customer experience.
• Security and Fraud Prevention: To detect, prevent, and investigate security incidents, fraudulent transactions, abuse, or other illegal activities that could compromise the integrity of our platform or the safety of our users.
• Legal Compliance: To comply with applicable laws, regulations, legal processes, and governmental requests, and to enforce our Terms of Service and other legal agreements.

3 Legal Basis for Processing

We process your personal information only when we have a valid legal basis to do so, in accordance with the applicable data protection laws, including the Personal Information Protection Law of the People’s Republic of China (PIPL) and, where relevant, the European Union’s General Data Protection Regulation (GDPR) or other applicable privacy frameworks. The legal bases upon which we rely include:

• Contractual Necessity: Processing is necessary to perform a contract with you or to take steps at your request before entering into a contract — for example, processing your payment and shipping information to fulfil an order you have placed.
• Consent: We process your information where you have given your explicit, informed, and freely given consent for one or more specific purposes. You have the right to withdraw your consent at any time without affecting the lawfulness of processing based on consent before its withdrawal.
• Legitimate Interests: Processing is necessary for the purposes of the legitimate interests pursued by us or by a third party, except where such interests are overridden by your interests or fundamental rights and freedoms. Our legitimate interests include operating and improving our business, preventing fraud, and ensuring network and information security.
• Legal Obligation: Processing is necessary for compliance with a legal obligation to which we are subject, such as tax and accounting record-keeping requirements, or responding to lawful requests from public authorities.
• Vital Interests: In rare circumstances, processing may be necessary to protect the vital interests of you or another individual, such as in a medical emergency.

Where processing relies on your consent, we will obtain such consent in a clear, conspicuous, and freely given manner before processing begins. We maintain records of consents obtained to demonstrate compliance. If you have questions about the specific legal basis applied to a particular processing activity, please contact us using the details provided in Section 10.

4 Data Sharing and Disclosure

We do not sell, trade, or rent your personal information to third parties for their own marketing purposes. However, there are certain circumstances in which we may share your data with trusted third parties in order to operate our business effectively. These circumstances include:

• Service Providers: We engage third-party companies and individuals who perform services on our behalf — such as payment processing, shipping and logistics, cloud hosting, email delivery, analytics, and customer support. These service providers are contractually bound to process your data only on our instructions and in accordance with this Privacy Policy. They are subject to strict confidentiality and security obligations.
• Business Transfers: In the event of a merger, acquisition, restructuring, sale of assets, or bankruptcy, your personal information may be transferred as part of that transaction. We will notify you via email and/or a prominent notice on our website of any change in ownership or use of your personal information, as well as any choices you may have regarding your information.
• Legal Requirements: We may disclose your personal information if required to do so by law or in the good-faith belief that such action is necessary to comply with a legal obligation, protect and defend our rights or property, prevent or investigate possible wrongdoing in connection with our services, protect the personal safety of users of our services or the public, or protect against legal liability.
• Aggregated or De-identified Data: We may share aggregated or de-identified information that cannot reasonably be used to identify you for research, marketing, analytics, or other business purposes. Such data does not constitute personal information and is not subject to the data protection obligations set out in this policy.

We require all third parties to respect the security of your personal data and to treat it in accordance with applicable law. We do not allow our third-party service providers to use your personal data for their own purposes and only permit them to process your personal data for specified purposes and in accordance with our instructions.

5 Data Retention

We retain your personal information only for as long as is necessary to fulfil the purposes for which it was collected, including for the purposes of satisfying any legal, accounting, or reporting requirements. The specific retention period depends on the nature of the data and the purpose of processing:

• Account and Transaction Data: Retained for the duration of your account relationship with us plus a reasonable period thereafter (typically five years) to comply with tax, audit, and legal obligations, as well as to address any disputes or legal claims.
• Marketing and Communications Data: Retained until you unsubscribe from our communications or for two years after your last interaction with us, whichever occurs first, unless a longer retention period is required by law.
• Technical and Usage Data: Retained for a period of up to 26 months from the time of collection for analytics and system improvement purposes, after which it is aggregated or anonymized.
• Correspondence and Support Records: Retained for the duration of the inquiry plus up to three years thereafter to improve our services and train our support teams.

When the retention period expires, personal information is securely deleted, destroyed, or anonymized so that it can no longer be associated with a specific individual. In some circumstances, we may retain your personal information for longer periods if required by applicable law, court order, or regulatory obligation. We periodically review our data holdings to ensure that data is not retained beyond necessary periods.

6 Data Security

Protecting your personal information is a top priority for Yuncheng Longjin Technology. We implement a comprehensive set of technical, organizational, and administrative security measures designed to safeguard your data against unauthorized access, alteration, disclosure, destruction, or accidental loss. Our security practices include:

• Encryption: All data transmitted between your browser and our servers is encrypted using Transport Layer Security (TLS) protocol with strong cipher suites. Sensitive data stored on our systems is encrypted at rest using industry-standard AES-256 encryption.
• Access Controls: Access to personal information is restricted on a strict need-to-know basis. Our employees, contractors, and agents who require access to your data to perform their job functions are bound by confidentiality obligations and subject to disciplinary action if they fail to meet these obligations.
• Infrastructure Security: Our systems are hosted in secure data centers that employ physical security controls, including 24/7 monitoring, biometric access controls, and environmental protection systems. We conduct regular vulnerability assessments and penetration testing.
• Incident Response: We maintain an incident response plan to promptly address any data security breaches. In the unlikely event that your personal information is compromised, we will notify you and the relevant supervisory authority within the timeframes required by applicable law.
• Employee Training: All personnel handling personal data receive mandatory training on data protection best practices, privacy obligations, and security awareness on a regular basis.

7 Your Rights and Choices

Depending on your jurisdiction and applicable data protection laws, you may have certain rights regarding the personal information we hold about you. We respect these rights and have processes in place to facilitate their exercise. Your rights may include:

• Right of Access: You have the right to request confirmation of whether we process your personal information and, if so, to obtain a copy of the personal data we hold about you, along with information about how and why we process it.
• Right to Rectification: You have the right to request that we correct any inaccurate or incomplete personal information we hold about you without undue delay.
• Right to Erasure (Right to be Forgotten): You have the right to request the deletion of your personal information where it is no longer necessary for the purposes for which it was collected, where you withdraw your consent, or where there is no overriding legitimate interest for continued processing.
• Right to Restrict Processing: You have the right to request that we restrict the processing of your personal information under certain circumstances, such as when you contest the accuracy of the data or object to processing while we verify our legitimate grounds.
• Right to Data Portability: Where processing is based on consent or contract and is carried out by automated means, you have the right to receive your personal data in a structured, commonly used, and machine-readable format, and to transmit that data to another controller.
• Right to Object: You have the right to object to the processing of your personal information for direct marketing purposes at any time. You also have the right to object to processing based on our legitimate interests, including profiling.
• Right to Withdraw Consent: Where processing is based on your consent, you have the right to withdraw that consent at any time. Withdrawal does not affect the lawfulness of processing carried out prior to withdrawal.
• Right to Lodge a Complaint: If you believe that our processing of your personal information violates applicable law, you have the right to lodge a complaint with the relevant data protection authority in your jurisdiction.

To exercise any of these rights, please contact us using the contact details provided in Section 10. We will respond to your request within the timeframe required by applicable law (generally within 30 days). We may need to verify your identity before processing your request. There is no charge for exercising your rights unless your request is manifestly unfounded or excessive.

8 Cookies and Tracking Technologies

Our website uses cookies and similar tracking technologies to enhance your browsing experience, analyse site traffic, and understand where our visitors come from. Cookies are small text files that are stored on your device when you visit a website. They enable the website to remember your actions and preferences over a period of time, so you do not have to re-enter them each time you return.

We use the following categories of cookies on our website:

• Strictly Necessary Cookies: These cookies are essential for the operation of our website and enable core functionality such as security, network management, and account login. Without these cookies, certain services cannot be provided. These cookies do not require your consent.
• Functional Cookies: These cookies allow our website to remember choices you make (such as your language preference or region) and provide enhanced, more personalised features. They may also be used to provide services you have requested, such as watching a video.
• Analytics and Performance Cookies: These cookies collect information about how visitors use our website, such as which pages are visited most often and whether users receive error messages. We use this data to improve the performance and design of our website. All information collected by these cookies is aggregated and therefore anonymous.
• Marketing and Targeting Cookies: These cookies are used to deliver advertisements that are more relevant to you and your interests. They may also be used to limit the number of times you see an advertisement and to measure the effectiveness of advertising campaigns.

When you first visit our website, a cookie banner will appear asking for your consent to set non-essential cookies. You can manage your cookie preferences at any time through the cookie settings panel available on our website. Most web browsers also allow you to control cookies through their settings. Please note that blocking or deleting certain cookies may affect the functionality of our website and your user experience.

In addition to cookies, we may use web beacons, pixel tags, and similar technologies to track user engagement with our emails and website content. These technologies allow us to measure the effectiveness of our communications and improve our services.

9 International Data Transfers

As a company headquartered in Yuncheng, Shanxi Province, China, the personal information we collect is primarily stored and processed within the People’s Republic of China. However, in certain circumstances, we may need to transfer your data to countries outside of China — for example, if we use cloud service providers with servers located in other jurisdictions.

When we transfer personal information across international borders, we take appropriate safeguards to ensure that your data receives an adequate level of protection consistent with the requirements of applicable data protection laws. These safeguards may include:

• Standard Contractual Clauses: Entering into contracts with data recipients that incorporate standard data protection clauses approved by relevant regulatory authorities, ensuring that the recipient provides an adequate level of data protection.
• Binding Corporate Rules: Where applicable, maintaining internal data protection policies and procedures that have been approved by competent data protection authorities.
• Consent: Where appropriate, obtaining your explicit consent to the transfer after informing you of the possible risks of such transfer due to the absence of an adequacy decision and appropriate safeguards.
• Security Review: Conducting due diligence and security assessments of all third-party recipients to ensure they maintain adequate data protection standards before any data transfer occurs.

We comply with the cross-border data transfer provisions of the Personal Information Protection Law of the People’s Republic of China, including — where required — conducting a personal information protection impact assessment and obtaining the necessary approvals or certifications before initiating cross-border transfers. If you have questions about the specific safeguards applied to your data when it is transferred internationally, please contact us.

10 Contact Information

If you have any questions, concerns, or requests regarding this Privacy Policy or our data handling practices, or if you wish to exercise any of your data protection rights, please do not hesitate to contact us. We are committed to addressing your inquiries in a timely and transparent manner.

11 Changes to This Privacy Policy

We reserve the right to update, modify, or revise this Privacy Policy at any time to reflect changes in our data practices, legal obligations, operational requirements, or the regulatory environment. When we make material changes, we will take appropriate steps to notify you in accordance with the significance of the changes and the requirements of applicable law.

Updates to this policy will be communicated through one or more of the following methods:

• Website Notice: A prominent notice will be posted on our website informing you that the Privacy Policy has been updated, along with the effective date of the changes.
• Email Notification: If we have your email address on file and the changes are material, we will send you an email notification summarizing the key modifications.
• In-App Notification: Where applicable, we may notify you through your account dashboard or other service interfaces.

We encourage you to review this Privacy Policy periodically to stay informed about how we are protecting your information. The “Last Updated” date at the top of this page indicates when this policy was last revised. Your continued use of our website or services after any changes to this Privacy Policy constitutes your acceptance of the updated terms. If you do not agree with any changes, you should discontinue use of our services and contact us to request the deletion of your personal information where applicable.

This Privacy Policy was last updated on January 1, 2026. Previous versions of this policy are available upon request by contacting us using the information in Section 10.