Introduction

Domain: The website name is a website provided by Shandong Tianzhidun Engineering Materials Co., Ltd. (hereinafter referred to as "we"). When you use our services, we may collect and use your relevant information. Through this Privacy Policy, we would like to explain to you how we collect, use, store, and share this information when you use our services, as well as the ways we provide for you to access, update, control, and protect this information. This Privacy Policy is closely related to the website name services you use. We hope you read it carefully and, when necessary, follow the guidance of this Privacy Policy to make choices you deem appropriate. For technical terms involved in this Privacy Policy, we try to express them concisely and provide links to further explanations for your understanding.

By using or continuing to use our services, you agree that we collect, use, store, and share your relevant information in accordance with this Privacy Policy.

If you have any questions about this Privacy Policy or related matters, please contact us.

1. Information We Collect

When we or our third-party partners provide services, we may collect, store, and use the following information related to you. If you do not provide

the relevant information, you may not be able to register as our user or enjoy certain services we provide, or may not be able to achieve the intended effect of the relevant services.

- Personal Information: Relevant personal information you provide to us during the process of contacting and consulting with us, such as phone numbers, emails, etc.

- Location Information: Refers to information about your location collected when you enable the device positioning function and use our location-based related services, including: geographic location information collected through GPS or WiFi and other methods when you use our services through a mobile device with positioning functionality; you can stop the collection of your geographic location information by turning off the positioning function.

- Log Information: Refers to information that the system may collect through cookies, identifiers, and related technologies when you use our services, including your device information, browsing information, and click information, and store such information as log information to provide you with a personalized user experience and ensure service security. You can refuse or manage the use of cookies, identifiers, or related technologies through browser settings.

2. Methods and Duration of Information Storage

2.1 Information Storage

We will store your information in a secure manner, including local storage, databases, and server logs.

In general, we will only store your personal information for the time necessary to achieve the purpose of the service or under the conditions stipulated by laws and regulations.

2.2 Location of Information Storage

In accordance with laws and regulations, we will store personal information of users collected within the territory in China.

At present, we will not transmit or store your personal information overseas. If cross-border transmission or storage is required in the future, we will inform you of the purpose of information export, the recipient, security guarantee measures, and security risks, and obtain your consent.

2.3 Notification When Products or Services Cease Operation

When our products or services cease operation, we will notify you through push notifications, announcements, and other forms, and delete your personal information or anonymize it within a reasonable period, unless otherwise provided by laws and regulations.

3. Information Security

We use various security technologies and procedures to prevent information loss, improper use, unauthorized viewing, or disclosure. For example, in certain services, we will use encryption technology (such as SSL) to protect the personal information you provide. However, please understand that due to technical limitations and various malicious means that may exist, in the internet industry, even with the best efforts to strengthen security measures, it is impossible to always guarantee 100% security of information. You need to understand that the system and communication network you use to access our services may encounter problems due to factors beyond our control.

4. How We Use Information

We may use the information collected during the process of providing services to you for the following purposes:

- To provide services to you;

- When we provide services, for identity verification, customer service, security prevention, fraud monitoring, archiving, and backup purposes, to ensure the security of the products and services we provide to you;

- To help us design new services and improve our existing services;

- To enable us to better understand how you access and use our services, so as to respond to your personalized needs in a targeted manner, such as language settings, location settings, personalized help services and instructions, or to respond to you and other users in other respects;

- To provide you with advertisements more relevant to you instead of generally placed advertisements;

- To evaluate the effectiveness of advertisements and other promotional and marketing activities in our services and improve them;

- Software certification or software upgrade management;

- To allow you to participate in surveys about our products and services.

5. Information Sharing

At present, we will not proactively share or transfer your personal information to third parties. If there are other circumstances in which your personal information is shared or transferred, or you need us to share or transfer your personal information to a third party, we will directly obtain or confirm that the third party has obtained your express consent to the above behavior.

For the purposes of advertising placement, evaluating and optimizing advertising effectiveness, we need to share part of your data with third-party partners such as advertisers and their agents, and require them to strictly comply with our measures and requirements regarding data privacy protection, including but not limited to processing in accordance with data protection agreements, commitments, and relevant data processing policies, avoiding identification of personal identity, and ensuring privacy security.

We will not share information that can be used to identify your personal identity (such as your name or email address) with partners unless you explicitly authorize it.

We will not publicly disclose the personal information collected. If public disclosure is necessary, we will inform you of the purpose of such public disclosure, the types of information disclosed, and sensitive information that may be involved, and obtain your express consent.

With the continued development of our business, we may engage in transactions such as mergers, acquisitions, and asset transfers. We will inform you of the relevant circumstances and continue to protect or require the new controller to continue to protect your personal information in accordance with laws and regulations and standards no lower than those required by this Privacy Policy.

In addition, in accordance with relevant laws, regulations, and national standards, in the following circumstances, we may share, transfer, or publicly disclose personal information without prior authorization and consent from you:

- Directly related to national security and national defense security;

- Directly related to public security, public health, and major public interests;

- Directly related to criminal investigation, prosecution, trial, and execution of judgments;

- Where it is difficult to obtain the consent of the person in order to protect the life, property, and other major lawful rights and interests of the personal information subject or other individuals;

- Where the personal information subject discloses personal information to the public on their own;

- Personal information collected from legally publicly disclosed information, such as lawful news reports, government information disclosure, and other channels.

6. Your Rights

During your use of our services, we may provide corresponding operation settings depending on the specific circumstances of the product, so that you can query, delete, correct, or withdraw your relevant personal information. You may refer to the corresponding specific guidelines for operation. In addition, we have set up complaint and report channels, and your opinions will be handled promptly. If you are unable to exercise your rights as a personal information subject through the above channels and methods, you may submit your request through the contact information provided in this Privacy Policy, and we will respond in accordance with laws and regulations.

When you decide to stop using our products or services, you may apply to cancel your account. After account cancellation, unless otherwise provided by laws and regulations, we will delete or anonymize your personal information.

7. Changes

We may revise the terms of this Privacy Policy from time to time. When changes occur, we will prompt you with the new Privacy Policy when the version is updated and explain the effective date to you. Please read the contents of the changed Privacy Policy carefully. If you continue to use our services, it means you agree that we process your personal information in accordance with the updated Privacy Policy.

8. Protection of Minors

We encourage parents or guardians to guide minors under the age of eighteen in using our services. We recommend that minors encourage their parents or guardians to read this Privacy Policy, and recommend that minors seek the consent and guidance of their parents or guardians before submitting personal information.