[Special Notice]

This policy applies only to the products and services provided by Nanjing Lestar Welding Science and Technology Co.,Ltd and its affiliates (hereinafter referred to as “we” or “Nanjing Lestar Welding Science and Technology Co.,Ltd”) and the extended functions thereof (hereinafter referred to as “Nanjing Lestar Welding Science and Technology Co.,Ltd Services”), including the Nanjing Lestar Welding Science and Technology Co.,Ltd website, official accounts, video channels, and various products and services provided to you in new forms emerging with technological development. If a certain product or service we provide has a separate privacy policy or special provisions exist in the corresponding legal statement, the privacy policy of that product shall prevail, and matters not covered by the privacy policy and user service agreement of that product or service shall be governed by the content of this policy. If the products or services of our affiliates use the products or services provided by Nanjing Lestar Welding Science and Technology Co.,Ltd but do not have a separate privacy policy, this privacy policy shall also apply to such products or services.

Please carefully read the “Nanjing Lestar Welding Science and Technology Co.,Ltd Privacy Policy” (especially the bolded content) and confirm that you understand our rules for processing your personal information. During reading, if you have any questions, you may contact us through the contact information in the “Nanjing Lestar Welding Science and Technology Co.,Ltd Privacy Policy”.

Introduction

Welcome to visit the website of Nanjing Lestar Welding Science and Technology Co.,Ltd (the “Website”)!

The Website is provided and controlled by Nanjing Lestar Welding Science and Technology Co.,Ltd (“we”). Our registered address is Liandong U Valley Luzhi International Enterprise Port, Wuzhong District, Suzhou City, People’s Republic of China.

We attach great importance to the privacy and personal information protection of our users. When you use our products and/or services, we may collect and use your relevant information. We hope to explain to you through the “Nanjing Lestar Welding Science and Technology Co.,Ltd Privacy Policy” (this “Privacy Policy”) how we collect, use, store, share and transfer such information when you use our products and/or services, as well as the ways we provide for you to access, update, delete and protect such information.

This Privacy Policy will help you understand the following:

1. What types of information we collect about you

2. How we use your information

3. How we share your information

4. Entrusted processing

5. How we protect your information

6. How long we retain your information

7. Personal information protection of minors

8. Notice and amendments

9. Third-party links

10. Contact us

Table of Contents

1. What types of information we collect about you

2. How we use your information

3. How we share your information

4. Entrusted processing

5. How we protect your information

6. How long we retain your information

7. Personal information protection of minors

8. Notice and amendments

9. Third-party links

10. Contact us

1. What types of information we collect about you

When you use the Website, we may collect the following categories of information about you:

Information you provide to us.

We may collect personal information you provide to us. When you send information to us through the “Contact Us” page on the Website, you need to provide your personal identity and contact information, such as your name, email address, telephone number, country and city; you may also provide us with your employment information, such as your employer and job title. We may also obtain information about you in your communications with us, such as in your comments, questions, feedback, and other content you provide in the course of using the Website’s features.

Information we collect about you.

In the course of your use of the Website, we may automatically collect certain information about you. Such information may include:

• Technical and device information. We may collect certain technical information about you and your device. Such information may include, but is not limited to, your IP address, system time zone, system language, and other system or network identification information.

• Operation and behavior information. We automatically collect information generated when you visit the Website and record your usage activities on the Website, including your dwell time on the Website, which parts of the Website you visited, and what information you accessed.

• Cookies and similar technologies. The Website may use “Cookies” and other tracking technologies to store information provided by users of the Website. Cookies are pieces of information sent by a web server to a user’s browser. Cookies may include information such as user preferences, time spent on the website, and pages visited. We use this information to identify you and to customize and improve your experience on the Website. You can manage the Cookies settings on your device through the functions provided by most browsers. For example, you can set your browser to notify you when it receives Cookies, or you can choose to block Cookies with your browser, but please note that not accepting Cookies may limit your use of certain features of the Website. In addition, please note that the Website is currently unable to respond to “Do Not Track” instructions you send.

Information we collect from third parties.

We may obtain personal information about your use of and access to the Website from third-party platforms and our service providers, such as the country/region where your system is located, the brand and model of your device, browsing records, browsing history, including other services you visited to access our Website, search records and click records.

2. How we use your information

We may use your information in the following ways:

Based on our legitimate interest in providing the Website, we may use your information for the following purposes:

• To review your opinions or questions and provide you with appropriate services;

• To enforce our terms and policies;

• To process and respond to your requests, inquiries, applications, complaints and feedback;

• To provide support and respond to your requests, feedback and inquiries;

• To monitor, operate, maintain and manage the Website;

• To process and resolve technical problems and failures of the Website;

• To ensure the effective and efficient operation of the Website;

• To detect, prevent or otherwise address security, fraud or technical issues;

• To improve and enhance the functions and performance of the Website and related services;

• To properly manage and operate our relationship with you;

• To manage our business; and to protect, enforce or maintain our rights and interests (including our rights and interests in respect of violations of our terms and conditions);

• To use for academic research;

• To use for social public interests and public health emergencies in compliance with laws and regulations.

We may use your information for the purpose of fulfilling our legal obligations and responsibilities. Where we have obtained your consent, or where permitted by laws and regulations, we may also process your information for other purposes disclosed to you.

3. How we share your information

We may share your information with the following third parties:

Service providers. We may share your information with third parties that provide services to us to operate and maintain the Website, such as website hosting service providers, development service providers, and cloud service providers.

Our affiliates. To provide the Website, we may share your information with any member, subsidiary or affiliate of our company for purposes including preventing illegal use and supporting users.

Law enforcement agencies and competent authorities. We may share your information with competent authorities, courts, third parties and other institutions based on court judgments, subpoenas, requirements of legitimate litigation preparation procedures, regulatory requirements, or where the provision of information is permitted or required by law, including where we reasonably believe it is necessary or appropriate to investigate, prevent or take action regarding illegal activities, suspected fraud, or potential threats to the personal safety of any person.

Sale or merger. We may disclose your information to any third party in the following circumstances:

• A third party acquiring or intending to acquire all or part of our assets or shares;

• A third party acquired by us in whole or in part.

• A third party merging with us; or

• A third party succeeding to all or part of our business,

In each of the above circumstances, the third party shall have a legal obligation not to disclose or use your information without our authorization.

Please note that information you voluntarily share or even publicly share when using our services may involve your or others’ personal information or even sensitive personal information. Please consider carefully and decide when sharing.

4. Entrusted processing

We may entrust authorized partners to process your personal information in order to provide you with corresponding products or services. However, we will only share your personal information for lawful, legitimate, necessary, specific and explicit purposes, and will only share the personal information necessary to provide the products or services. If our partners use your personal information for purposes not entrusted by us, they will separately obtain your consent.

Our partners include the following types:

Suppliers providing technical services. We may provide your personal information to third parties that support our functions, including suppliers that provide us with infrastructure technical services, data analysis services and data processing services.

Advertising and analytics service partners. We will comply with laws, regulations and industry-wide security technologies, and entrust these partners to process information related to advertising placement, reach and effectiveness.

Where we entrust partners to process personal information, we will sign data protection agreements with them, requiring them to process personal information in accordance with the agreement, this Privacy Policy and relevant laws and regulations.

5. How we protect your information

We implement security measures in accordance with this Privacy Policy and maintain physical, electronic and managerial processes to protect and safeguard the information we process about you. However, data transmission over the Internet is not absolutely secure, and we cannot ensure the absolute security of your information. All transmission of your information to us shall be at your own risk.

6. How long we retain your information

During your use of the Website services, your personal information will be retained within the period necessary to achieve the purposes described in this Policy, and will also be determined in conjunction with mandatory retention period provisions under law, such as the requirement under the E-commerce Law of the People’s Republic of China that product and service information and transaction information be retained for no less than three years from the date of completion of the transaction. After the retention period expires, we will delete your personal information or anonymize it in accordance with applicable laws.

We may also retain your information where we have other lawful purposes; for example, where we are required to retain personal information due to mandatory requirements of laws, regulations or administrative or judicial authorities, or contracts or similar obligations. We respect and attach great importance to rights relating to your personal information, including:

Right of data access. You have the right to request that we confirm whether we process your personal information and to request that we provide you with a copy of your personal information.

Right to rectification. If any personal information we collect about you is incomplete or inaccurate, you may request that we correct or update such information.

Right to erasure. Under specific circumstances, you may request that we delete all or part of your personal information.

Withdrawal of consent. If our processing of your personal information is based on your consent, you have the right to withdraw your consent at any time. However, if your consent is withdrawn, you may not be able to use some features of the Website and our services.

You may contact us in accordance with Section 10 (Contact Us) of this Privacy Policy to exercise any of your rights. To protect your privacy, we may require you to provide additional information to verify your identity before processing your request.

7. Personal information protection of minors

Nanjing Lestar Welding Science and Technology Co.,Ltd attaches great importance to the protection of minors’ personal information. If you are a minor under the age of 18, you should obtain the consent of your guardian before using our products and/or services. Nanjing Lestar Welding Science and Technology Co.,Ltd protects minors’ personal information in accordance with relevant national laws and regulations.

We will not proactively or directly collect personal information from minors. In cases where we collect minors’ personal information with the consent of guardians, we will only use, share, transfer or disclose such information where permitted by law, with the consent of the guardian, or as necessary to protect minors.

8. Notice and amendments

We reserve the right to amend this Privacy Policy from time to time at our sole discretion. We will notify you of any material changes to this Privacy Policy through notices posted on the Website, and such changes shall apply only to information collected after the amended Privacy Policy takes effect. Any amendment to this Privacy Policy will take effect immediately upon posting. We encourage you to review this Privacy Policy periodically to learn about changes to this Privacy Policy and how we protect your personal information.

9. Third-party links

This Privacy Policy does not apply to any other websites or platforms unless the context indicates otherwise. Please note that the Website may include links to other websites, platforms or products whose privacy policies and practices differ from ours. These links are provided solely for your convenience and for more information, and do not indicate that we have any affiliation with or sponsorship of the third-party websites, nor do they indicate our endorsement of the information on the third-party websites. If you provide your information to any of these third parties or interact with these third-party websites, we are not responsible for the collection and processing of your information by them.

10. Contact us

If you have any questions about this Privacy Policy, please contact us through the official website.

Generally, we will respond within 15 days. If you are not satisfied with our response, especially if our personal information processing activities have harmed your lawful rights and interests, you may also complain or report to the Cyberspace Administration, telecommunications, public security, and industry and commerce regulatory authorities.

Appendix: Examples of Personal Information and Sensitive Personal Information (not personal information collected by the Nanjing Lestar Welding Science and Technology Co.,Ltd website, official accounts or video channels; for illustrative purposes only)

Personal information: various information recorded electronically or otherwise relating to an identified or identifiable natural person, excluding information after anonymization.

Sensitive personal information: personal information that, once leaked or illegally used, is likely to cause harm to the personal dignity of a natural person or endanger personal or property safety, including biometric identification, religious belief, specific identity, medical health, financial accounts, whereabouts and other information, as well as personal information of minors under the age of fourteen.

Device information: including device identifiers (IMEI, IDFA, AndroidID, MAC, OAID, IMSI and other device-related information), application information (application crash information, notification switch status, application installation list and other application-related information), device parameters and system information (device type, device model, operating system and hardware-related information), and device network environment information (IP address, WiFi information, base station information and other network-related information).