Privacy policy

Last updated: July 5, 2026

 

Cuiji Global Tech Limited ("Cuiji," "we," "us," or "our", a company incorporated in Hong Kong) has developed this Privacy Policy to explain how we collect, retain, process, share, and transfer your personal information when you visit, download, use, or make a purchase or other transaction through our online store operating under the Deye brand, including our website, mobile application(s), and all related information, content, features, tools, products, and services (collectively, the "Services"). Our platform is powered by Shopify, which enables us to provide the Services to you.

For the purposes of applicable data protection laws, Cuiji acts as the Data Controller of your personal information for the activities described in this Privacy Policy. Where affiliated companies within our corporate group also process your personal information, either as joint controllers with Cuiji or as independent controllers, such processing will be conducted in compliance with applicable data protection laws and this Privacy Policy.

Please read this Privacy Policy carefully. By using, downloading, or accessing any of the Services, you acknowledge that you have read and understood the collection, use, and disclosure of your information as described herein.

1. Personal Information We Collect or Process

We collect, process, and use personal information from and about you, including when you create an account and interact with us to make use of our Services. We collect the following information necessary for Users to access our Services:

1.1 Information You Provide

To use our Services, you may create a Deye Online Store account. When you create an account, purchase goods, make payments, or submit after-sales requests, you need to provide us with the necessary information.

• Create Account. If you create an account, you must provide us with the necessary information so that we can provide our Services to you. This includes your name, your email address or your mobile phone number, your password, your display language, and third-party single sign-in information (if you choose this sign-in method) (“Account Information”). If you do not provide the necessary Account Information to us, you will not be able to use certain features of our Services.

• Purchase Goods. If you purchase goods through our Services, you are required to provide us with the necessary information so that we can process your order and deliver the goods to you. This includes your name, billing address, shipping address, phone number, and email address (“Order Information”). Failure to provide this information will prevent us from fulfilling your order.

• Financial Information. To complete a transaction, you must provide payment details. This includes your credit card or debit card details, financial account numbers, payment card information, transaction details, form of payment, payment confirmations, and other relevant payment details (“Financial Information”). Please note that Financial Information is securely processed by our third-party payment providers.

• Communications with Us. When you contact our customer support, submit inquiries, file complaints, or send other correspondence, we collect the details you include in these communications (“Communication Information”). This information is necessary for us to address your requests and improve our customer service.

1.2 Information we collect when you use our Services

When you use our Services, we collect information about how you interact with them.

• Device Information. We collect information about and from the devices you use to access our Services, that includes: (1) Information about your devices, such as device model, operation system, browser information, Unique Device Identifier (a string that the manufacturer assigns to your device to uniquely identify the device, like IDFA for iOS or Android ID/GAID for Android), and other information about your device. (2) Information about your connection to our Services, such as your IP address, network connection status and type, network condition and related information.

• Transaction Information. As you interact with our online store, we collect records of your commercial activities. This includes the items you view, put in your cart, add to your wishlist, purchase, return, exchange, or cancel, as well as your past transaction history.

– Log Information. When you use our Services, we collect operation logs, service logs, service failure information, and other activity logs, even if you have not created an account or are signed out. This includes: IP address and related information; device IDs and operating system information; browser information; pages visited; and identifiers associated with cookies. We also collect Mobile/Web application performance data, crash data, and the source of the Mobile Application in order to ensure information security and improve system performance.

– Cookies and similar technologies. We use cookies and similar technologies to operate our Services, analyze how users use our Services, and improve performance. Cookies and similar technologies help you stay logged in, protect your account security, and help us understand user interactions to enhance the user experience. You can manage or delete cookies according to your preferences via your browser settings or mobile device system settings. For additional information, please refer to our Cookie Policy.

– Interactions with Third-Party Sellers. Our platform hosts various third-party service providers who operate as independent sellers in specific countries or regions. When you purchase goods directly from them, we will share your Account Information, Order Information, payment confirmation details, and other necessary transaction information with the respective seller to facilitate the transaction. These sellers act as independent data controllers based on the sales contract concluded with you or other lawful bases.

1.3 Information we receive from third parties

We may receive information about you from third parties authorized by you, including: Our service providers and partners (e.g., payment processors, logistics providers, analytics providers) who assist us in delivering the Services; Third-party platforms through which you log in or connect to our Services (e.g., Sign in with Apple, sign in with Google); and Our affiliates and business partners who assist us in evaluating the security and quality of our Services.

2. How We Use the Information

2.1 Provide, Tailor, and Improve the Services.

To perform our contract or complete transactions with you, process payments, fulfill orders, arrange shipping, manage accounts, facilitate returns/exchanges, enable product reviews, and maintain an optimized front-end experience across desktop and mobile platforms.

2.2 Marketing and Advertising

We use your personal information for marketing and promotional purposes, such as to send marketing, advertising and promotional communications by email, text message or postal mail, and to show you online advertisements for products or services on the Services or other websites, including based on items you previously have purchased or added to your cart and other activity on the Services.

2.3 Security and Fraud Prevention

To authenticate your account, provide a secure payment experience, detect, investigate, or take action regarding potential fraudulent, illegal, unsafe, or malicious activity, and protect our infrastructure. You are responsible for keeping your account credentials safe.

2.4 Communicating with You

To provide responsive customer support, respond to your inquiries, and maintain our business relationship, including sending service-related communications such as order confirmations, shipping updates, and warranty information.

2.5 Legal Reasons.

To comply with applicable laws, respond to valid legal processes (such as court orders, subpoenas, and regulatory requests), enforce our policies, and protect the rights and safety of our users and the public.

2.6 Research and Product Improvement

To analyze aggregated or anonymized data to understand usage patterns, improve our product design and development, conduct market research, and enhance the overall user experience.

3. What is Purpose and Legal Basis

The purposes and legal basis upon which we process your personal information include:

Processing Purpose	Personal Data	Lawful basis of Processing
Provide, Tailor, and Improve the Services	All personal information listed in “1. Information We Collect or Process”.	Contractual necessity, your Consent, Legitimate interests or Legal obligation
Marketing and Advertising; Research and Product Improvement	Account Information, Order Information, Communication Information	Your Consent, Legitimate interests
Security and Fraud Prevention	All personal information listed in “1. Information We Collect or Process”.	Contractual necessity, your Consent, Legitimate interests or Legal obligation
Communicating with You	Account Information, Order Information, Communication Information, Interactions with Third-Party Sellers.	Contractual necessity, your Consent, Legitimate interests or Legal obligation
Legal Reasons.	All personal information listed in “1. Information We Collect or Process”.	Legal obligation

We may process your personal information based on our legitimate interests, but we will always carefully consider your rights and interests. We will not proceed with such processing if we believe that your interests or fundamental rights and freedoms related to your personal information would be prejudiced.

You have the right to object to the processing of your personal information when it is carried out for our legitimate interests. If you object, we will assess the situation and cease processing your personal information unless there are compelling legitimate grounds that override your rights. Where we process personal information based on your consent, you may withdraw your consent at any time without affecting the lawfulness of processing carried out before withdrawal.

4. How We Share Information

4.1 Share upon your decision

When you direct or request us to disclose your information, such as through third-party login integrations (e.g., Sign in with Apple or Sign in with Google) or other authorized disclosures.

4.2 Share with third parties

We may share your information with our service providers that perform functions and provide services on our behalf (such as IT hosting, payment processing, logistics, analytics, and cloud storage). Before engaging third parties, we conduct pre-assessment procedures to verify their data protection practices and compliance with applicable privacy laws. We require all service providers to process your personal information only on our instructions and in accordance with applicable law.

4.3 Relationship with Shopify

Our Services utilize the Shopify SaaS infrastructure. Shopify's regulatory role varies based on the specific feature utilized:

Shopify as a Data Processor: For core e-commerce functions (storing product catalogs, inventory management, standard database hosting), Shopify acts as our Data Processor, processing personal data strictly based on our instructions.

Shopify as an Independent Data Controller: If you choose to interact with Shopify’s centralized consumer-facing features (such as completing payments via Shop Pay, logging into the Shop App, or where we utilize Shopify Audiences), Shopify processes your behavior across multiple independent merchant platforms. In these instances, Shopify acts as an independent Data Controller. You should review the https://www.shopify.com/sg/legal/privacy and manage your rights via the https://privacy.shopify.com/en.

4.4 Integrations with third-party

We may integrate third-party Software Development Kits (SDKs) or Application Programming Interfaces (API) in our mobile application and website to enhance functionality, provide better user experiences, and collect analytics data. These third-party service providers may act as independent data controllers or data processors under their own privacy policies.

 

As our technologies and services continually evolve, we will promptly update this section or clearly disclose such changes to you through in-app announcements, website notices, or other prominent means upon introducing any new SDKs or third-party partners. We highly recommend that you stay informed about updates to this Policy and review the privacy policies of these third parties.

4.5 When required by law

We may preserve, use, disclose, or share your information if we believe it is reasonably necessary to: comply with applicable law, protect the safety and integrity of our Services, protect your and our rights or property.

4.6 With our Affiliates

We may share information with our affiliated entities to provide and improve the Services, for product development, and for our internal business purposes. Any such sharing will be in accordance with applicable data protection laws.

4.7 Third-Party Websites, Apps, and Links

The Services may provide links to websites, mobile applications, or platforms operated by third parties. If you follow links to sites or apps not affiliated with or controlled by us, you should review their independent privacy policies. We do not guarantee and are not responsible for the privacy of such external platforms.

5. How and How Long We Store Information

5.1 Storage Locations and International Data Transfers

As we operate internationally and rely on Shopify's global SaaS infrastructure, your personal information may be transferred to, stored, and processed outside your jurisdiction of residence, primarily in Canada and the United States.

When transferring data across international borders (such as out of the EEA, UK, or other regulated regions) to jurisdictions without an equivalent adequacy status, we secure your data rights by implementing approved transfer mechanisms, including the European Commission’s Standard Contractual Clauses (SCCs) or equivalent international data transfer agreements, ensuring your information receives a legally compliant level of protection.

5.2 Data Retention

We will only retain your personal information for as long as reasonably necessary to fulfil the purposes we collected it for, including for the purposes of satisfying any legal, regulatory, accounting or reporting requirements.

– We retain your account information and other information for the duration of your account until you choose to deregister or until your account is terminated for any other reasons.

– We may retain certain information for longer periods than stated in our policies to comply with legal requirements and ensure safety and security.

– Once the specified retention periods expire, we will delete or anonymize your personal information, unless otherwise mandated by laws and regulations.

6. Security Measures and Device Permissions

We recognize the importance of protecting and managing your personal information and take all necessary steps to safeguard your personal information. We use a variety of security, organizational and technical measures designed to help protect your personal information from unauthorized access, use, disclosure, alteration or destruction consistent with applicable data protection and privacy laws and regulations.

However, you are also responsible for maintaining the security of your account for our Services in your possession or control. We recommend that you do not divulge your password to anyone. Our staff will never ask you for your password in an unsolicited phone call or in an unsolicited email. If you share a computer with others, you should not choose to save your account information on that shared computer.

When you use our mobile application, we do not request or activate any device permissions by default. However, as we introduce new features or services, we may need to activate specific device permissions (such as camera, storage, or notifications) only when you explicitly trigger those functions. You will always have the option to grant or deny these permissions through system pop-ups, and you can disable them at any time within your device's System Settings. Please note that the process for managing permissions may vary depending on your specific device. We recommend referring to your device's operating system instructions for detailed guidance.

7. Your Rights and Options

You have the following data subject rights and options regarding your personal data:

– Right to Access: You have the right to request a copy of your personal information. We will need to verify your identity before taking any action.

– Right to Rectification: If the personal information we hold is incorrect, you have the right to request its amendment.

– Right to Erasure: You have the right to request the deletion of your personal information that we hold. However, there may be legal and regulatory reasons that prevent us from deleting your data.

– Right to Withdraw Consent: You can withdraw your consent to the processing of your personal information at any time (if we process your personal information based on your consent). Please note that withdrawing consent may impact our ability to provide certain services to you, but it does not affect the lawfulness of our processing prior to the withdrawal.

– Right to Data Portability: You have the right to receive certain personal information you have provided to us in a machine-readable format, or to have it transmitted to a third party with your explicit authorization.

– Right to Restrict Processing: Under certain conditions listed in our policies, you can restrict the processing of your personal information.

– Right to Object: You have the right to object, on grounds relating to your particular situation, at any time to processing of Personal Data concerning you which is based on a task carried out in the public interest or on a legitimate interest.

– Right to Lodge a Complaint: If your privacy rights are violated or you have suffered as a result of unlawful processing of your personal information, you have the right to lodge a complaint with the relevant supervisory authority.

To exercise your rights, we may need to request specific information to confirm your identity and ensure your right to access your personal information or exercise any other rights. This is a security measure to protect your information. We may also contact you for further details related to your request. To exercise your rights, please contact us using the details provided in the "Contact Us" section below. Please note that we may need to verify your identity before proceeding with your request. We aim to respond to your request within 30 days, and if more time is required, we will inform you and keep you updated.

8. Children Policy

The Services are not intended for use by individuals under the age of 18 (or the age of majority in your jurisdiction), and we do not knowingly collect personal information from children under such age. If we become aware that a minor has provided personal information through our Services, we will take immediate steps to remove such information from our systems. If you are a parent or guardian and believe that your child has provided us with personal information, please contact us using the details in Section 10 to request its deletion.

9. Policy Update

We reserve the right to change, amend, or revise this Privacy Policy periodically to reflect changes to our Services, Shopify infrastructure updates, or applicable legal and regulatory requirements. We will post the revised Privacy Policy on our website and within the App, and update the "Last Updated" date at the top of this Privacy Policy.

We will make reasonable efforts to notify you of any significant or material changes to this Privacy Policy. If you do not agree with any of the changes, you have the option to close your account and discontinue use of our Services. By continuing to use our Services after the effective date of any changes, you indicate your acceptance of the revised Privacy Policy.

10. Contact Us

If you have questions or requests about the privacy issues relating to the processing of your personal information, you can contact the privacy office of your Data Controller, Cuiji Global Tech Limited:

<Data Controller>

Cuiji Global Tech Limited

Attn: Data Protection Officer (DPO)

Email: info.deyestore@deye.com.cn

Address: Unit 1, 23/F, First Group Centre, 23 Wang Chiu Road, Kowloon Bay, Hong Kong

If you are in EEA, you may contact our Data Protection Officer, our EU representative below or you may lodge a complaint with a supervisory authority in the EEA.

<EU Representative>

Deye Neue Energie GmbH

Attn: DEYE EU Representative

Email: privacyprotection@deye.com

Address: Franz-Rücker-Allee 19-21, 60487 Frankfurt am Main

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