Privacy Policy

Last updated: 2026-07-27

This Privacy Policy explains how Shenzhen Kangzhi Technology Co., Ltd. (doing business as SJJ, “we”, “us”, or “our”) collects, uses, stores, and protects personal information when you visit our website or submit an inquiry through our contact form. It applies to all visitors, distributors, and business contacts who interact with www.sjjlock.com and related SJJ services.

1. Information we collect

We only collect information that is necessary to respond to your inquiry and support our wholesale and OEM business relationship. This may include:

• Your name and job title or company name
• Business email address and phone number (if provided)
• Country or region and target market
• Product interests, estimated quantities, and project requirements
• Any other details you choose to include in your message

We do not intentionally collect sensitive personal data (such as health information, biometric data, or government IDs) through this website.

2. How we use your information

We use the information you provide for the following purposes:

• Responding to your product inquiries, quote requests, and sample orders
• Recommending suitable smart lock models, MOQ, and OEM options
• Processing and following up on wholesale orders
• Communicating about product updates, certifications, or logistics
• Improving our website, products, and customer service

We do not sell, rent, or trade your personal information to third parties for marketing purposes.

3. Legal basis for processing

We process personal information based on:

• Your consent — when you submit the inquiry form and agree to our privacy notice.
• Legitimate business interests — to respond to your inquiry, negotiate contracts, and manage our B2B relationships.
• Legal obligations — when required to comply with applicable laws, such as tax, customs, or trade regulations.

4. How we share your information

We keep your information within SJJ and our authorized service providers. We may share your information in limited circumstances:

• With email and hosting service providers who help us operate the website and deliver communications (under confidentiality obligations).
• With logistics, customs, and payment partners when necessary to fulfill a sample or wholesale order.
• When required by law, court order, or to protect our legal rights.

5. International data transfers

SJJ is headquartered in Shenzhen, China. If you are located outside China, your information may be transferred to, stored, and processed in China or other countries where our service providers operate. We take appropriate safeguards to protect your information during such transfers.

6. Data retention

We retain your inquiry information for as long as necessary to respond to your request, manage our business relationship, and comply with legal obligations. If you request deletion, we will remove your personal information unless we are required to retain it for legal, tax, or contract purposes.

7. Cookies and analytics

We may use essential cookies to keep the website secure and functional. We may also use analytics cookies to understand how visitors use the site and improve their experience. You can manage cookie preferences through your browser settings.

8. Your rights

Depending on your location, you may have the right to:

• Access the personal information we hold about you
• Correct inaccurate or incomplete information
• Request deletion of your personal information
• Object to or restrict certain processing activities
• Withdraw your consent at any time

To exercise these rights, please contact us using the information below. We will respond within a reasonable time and in accordance with applicable law.

9. Data security

We use reasonable technical and organizational measures to protect your information from unauthorized access, loss, misuse, or alteration. This includes encrypted transmission, access controls, and secure hosting environments. However, no method of transmission over the internet is completely secure, and we cannot guarantee absolute security.

10. Contact us

If you have any questions about this Privacy Policy or how we handle your personal information, please contact us through the inquiry form on our Contact page, or reach out via our Alibaba store at sjjlock on Alibaba.

Company: Shenzhen Kangzhi Technology Co., Ltd. (SJJ)

11. Changes to this policy

We may update this Privacy Policy from time to time to reflect changes in our practices, legal requirements, or website features. The updated version will be posted on this page with the revised “Last updated” date. We encourage you to review this policy periodically.