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This Privacy Policy (hereinafter referred to as "this Policy") is formulated by **DONGGUAN YUCHEN METAL PRODUCTS CO., LTD** (hereinafter referred to as "we") to clarify the scope, methods, purposes and protection measures for us to collect, use, store, transmit and disclose users' (hereinafter referred to as "you") personal information, and to protect your personal information rights and interests. This Policy applies to all your behaviors of accessing and using our website (**yctins.com, yctinbox.com,yuchenmetal.com**) and related services. By accessing or using our website, you are deemed to have fully understood and agreed to all the contents of this Policy. If you do not agree to this Policy, please do not access or use our website and related services.

## I. Collection and Use of Personal Information

We follow the principles of "legality, propriety, necessity and good faith", only collect personal information necessary for realizing the website service functions, do not over-collect or abuse personal information, and strictly carry out information processing activities in accordance with the provisions of the Personal Information Protection Law of the People's Republic of China and GDPR.

### (1) Types and Purposes of Collected Personal Information

1\. Basic Access Information: When you visit our website, our server will automatically record your device information (such as device model, operating system, browser type), access time, access IP address, browsing history, page stay time and other non-personal identification information. Such information is only used to optimize website performance, analyze access data, improve user experience, and will not be used to identify your personal identity.

2\. Voluntarily Submitted Information: When you perform operations such as registration, consultation, order placement, and customization request submission on the website, you may need to voluntarily provide personal information, including but not limited to name, contact information (phone number, email), company name, address, etc. Such information is used to complete registration, respond to your consultation, process orders, provide customization services and follow-up after-sales services, which is necessary information to realize core services.

3\. Third-Party Information: If you log in to our website through a third-party platform (such as WeChat, QQ, etc.), we will obtain your public information (such as nickname, avatar) on the third-party platform according to your authorization, which is used for convenient login and identity identification. We will not obtain other private information of the third-party platform, and the authorization can be revoked at any time.

4\. Sensitive Personal Information: In principle, we do not collect sensitive personal information (such as ID number, bank card information, biometric information, etc.); if it is really necessary to collect it due to special service needs, we will separately inform you of the purpose, scope and use, obtain your separate consent, and take stricter protection measures.

### (2) Legal Basis for Information Collection

We collect your personal information mainly based on the following legal bases: (1) your explicit consent; (2) necessity to perform the contract with you; (3) necessity to provide the services you request; (4) necessity to maintain website security and optimize service quality; (5) other legal circumstances stipulated by laws and administrative regulations.

## II. Storage and Protection of Personal Information

We attach great importance to the security of your personal information, adopt dual protection measures of technology and management to prevent the leakage, tampering, loss and abuse of personal information, ensure the security and controllability of your personal information, and strictly abide by the relevant provisions on the data storage period.

1\. Storage Measures: We adopt encrypted storage technology (such as HTTPS encrypted transmission, data encrypted storage) to encrypt your personal information; build a secure server environment, regularly conduct security detection and vulnerability repair on the server, and prevent security risks such as network attacks and virus intrusion.

2\. Storage Period: We only store your personal information for the shortest period necessary to achieve the purposes agreed in this Policy; after the storage period expires, we will delete or anonymize your personal information in accordance with the law, unless otherwise stipulated by laws and administrative regulations.

3\. Personnel Management: We conduct strict authority management on employees who have access to personal information, clarify job responsibilities, require employees to abide by confidentiality obligations; regularly conduct personal information protection training for employees, prohibit employees from privately collecting, disclosing or abusing user personal information, and will pursue the responsibility of employees who violate the regulations in accordance with the law.

4\. Third-Party Guarantee: If we entrust a third-party service provider to process your personal information (such as server hosting, data analysis, etc.), we will sign a strict confidentiality agreement with the third party, clarify the rights and obligations of both parties, require the third party to process your personal information in accordance with the provisions of this Policy and relevant laws and regulations, and supervise the processing behavior of the third party to ensure the security of your personal information.

## III. Transmission and Disclosure of Personal Information

We strictly control the scope of transmission and disclosure of personal information, and will not arbitrarily transmit or disclose your personal information to any third party unless it conforms to the following circumstances:

1\. Obtaining your explicit consent: Before transmitting or disclosing your personal information to a third party, we will obtain your written or oral consent in advance, and clearly inform you of the purpose, scope and recipient of the transmission and disclosure.

2\. Legal obligations: In accordance with the requirements of laws and regulations, judicial organs or administrative organs, we may transmit or disclose your personal information in accordance with the law to perform legal obligations.

3\. Necessity to realize services: To realize the service functions agreed in this Policy, we may transmit necessary personal information (such as name, address, phone number) to third parties providing relevant services (such as logistics service providers, payment service providers), but only transmit the information necessary for realizing the services, and will strictly supervise the third parties.

4\. Anonymization: Personal information that has been anonymized can no longer identify your personal identity. The transmission and disclosure of such information are not restricted by this Policy, and we can use it for data analysis, service optimization and other purposes.

5\. Cross-border Transmission: If cross-border transmission of personal information is involved, we will take security guarantee measures in line with international rules (such as signing standard contractual clauses) to ensure the security of cross-border transmitted personal information, in line with GDPR and relevant Chinese laws and regulations.

## IV. User's Rights

In accordance with the provisions of the Personal Information Protection Law of the People's Republic of China and GDPR, you have the following rights to your own personal information, and we will provide convenient channels for you to exercise your rights:

1\. Right to Know: You have the right to know the scope, methods, purposes and relevant basis for us to collect, use, store, transmit and disclose your personal information.

2\. Right of Access: You have the right to access your personal information stored by us, and we will provide query services for you within a reasonable time limit.

3\. Right to Rectification: If you find that your personal information is incorrect or incomplete, you have the right to request us to rectify and supplement your personal information.

4\. Right to Erasure: If you believe that our collection and use of your personal information does not conform to the provisions of laws and regulations or this Policy, you have the right to request us to delete your personal information; you also have the right to request deletion after the storage period expires.

5\. Right to Withdraw Consent: You have the right to withdraw your consent to the collection and use of personal information. After withdrawing consent, we will no longer continue to collect and use your relevant personal information, but it will not affect the effectiveness of personal information processing activities carried out based on your consent before withdrawal.

6\. Right to Data Portability: You have the right to request us to export your personal information in a reasonable format to facilitate your transfer to other personal information processors.

If you need to exercise the above rights, you can contact us through the contact information at the end of this Policy, and we will respond to your request within 15 working days and handle it for you in accordance with the law.

## V. Use of Cookies

To optimize the website experience and record your access preferences, our website may use Cookie technology. A Cookie is a small text file that will be stored on your device to identify your access status, record browsing habits, and help us provide you with more personalized services (such as remembering your login status, common operations, etc.).

You can choose to disable Cookies through browser settings; however, disabling Cookies may affect some functions of your access to the website (such as inability to log in normally, inability to save browsing preferences, etc.), and we will not be responsible for the inconvenience caused thereby.

## VI. Protection of Minors' Information

We attach great importance to the protection of minors' personal information. If you are a minor under 18 years old, you need to visit and use our website accompanied by a guardian, and you can only submit personal information with the guardian's consent.

If we find that we have inadvertently collected personal information of minors, we will immediately stop collecting and using it, delete the information in a timely manner, and notify the minor's guardian.

## VII. Changes and Updates to the Privacy Policy

With the update of laws and regulations and the optimization of website services, we may modify and update this Privacy Policy. The revised Privacy Policy will be published in a prominent position on the website (such as the bottom of the homepage) and will take effect on the date of publication.

If you continue to access and use our website after the update of the Privacy Policy, you are deemed to agree to the updated Policy; if you do not agree to the updated Policy, please immediately stop accessing and using our website and related services. We will retain the historical version of the Privacy Policy for your reference.

## VIII. Disclaimer

1\. We shall not be liable for the leakage, loss or tampering of your personal information caused by force majeure (such as natural disasters such as earthquakes, floods and typhoons, technical problems such as network interruption and server failure).

2\. We shall not be liable for personal information security problems caused by your improper operation (such as disclosing account password, actively disclosing personal information to third parties).

3\. Third-Party Website or Service Links: Our website may contain links to third-party websites or services. The privacy policy of third-party websites has nothing to do with us. We are not responsible for the collection and use of your personal information by third-party websites. Please carefully visit third-party websites and check their privacy policies.

## IX. Contact Information

If you have any questions, objections to this Privacy Policy, or need to exercise your rights related to personal information, or report personal information leakage and other problems, you can contact us through the following ways:

Contact Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Contact Phone: +86 769 88122901

Contact Address: #1 Building, No 3 Huangcong Ave, 523221, Zhongtang Town, Dongguan, Guangdong, China

We will respond to your request within 15 working days and solve the relevant problems for you in accordance with the law.

## X. Others

This Privacy Policy shall be governed by the laws of the People's Republic of China (excluding conflict of laws rules); if you have a dispute with us regarding this Privacy Policy, both parties shall resolve it through negotiation; if negotiation fails, either party has the right to file a lawsuit with the people's court with jurisdiction in our location.

Matters not covered in this Privacy Policy shall be implemented in accordance with the Personal Information Protection Law of the People's Republic of China, the Cybersecurity Law of the People's Republic of China, the Electronic Commerce Law of the People's Republic of China and GDPR and other relevant laws and regulations.

Effective Date: March 10, 2026