Privacy Policy

Last updated: 02 December 2025

This Privacy Policy explains how STJH Cleanroom (“we”, “us”, or “our”) collects, uses, and protects the information you provide when you use https://www.stjh-cleanroom.com (the “Website”). We are committed to protecting your privacy and handling your personal information in a transparent and responsible way.

1. Information We Collect

We may collect the following types of information when you interact with our Website or contact us:

• Identity information – such as your name, company name, job title, and country/region.
• Contact details – including your email address, phone number, WeChat ID, WhatsApp number or other contact information you choose to provide.
• Project and technical information – such as your cleanroom application, technical requirements, drawings, specifications, and other details submitted when you request a quotation or consultation.
• Website usage data – such as IP address, browser type, device type, pages viewed, time and date of your visit, and other analytical information collected through cookies and similar technologies.
• Any other information you provide – for example when you fill in forms, subscribe to updates, or send us feedback.

2. How We Use Your Information

We use the information we collect for the following purposes:

• To respond to your inquiries, quotation requests, and project questions.
• To design, plan, and manage cleanroom and controlled environment projects.
• To improve our products, services, and Website performance.
• To maintain internal records and project documentation.
• To send you information about products, services, case studies, or technical resources that may be relevant to you, where permitted by law.
• To comply with applicable laws and regulations and to protect our legal rights.

3. Legal Basis for Processing (Where Applicable)

Where data protection laws such as the GDPR apply, we rely on one or more of the following legal bases:

• Your consent, when you voluntarily provide information through our forms or contact channels.
• The performance of a contract or steps taken at your request before entering into a contract.
• Our legitimate interests in operating, improving, and promoting our products and services.
• Compliance with legal and regulatory obligations.

4. Cookies and Similar Technologies

Our Website uses cookies and similar technologies to help us understand how visitors use the site and to improve your browsing experience. Cookies are small text files that are stored on your device when you visit a website.

We use cookies to:

• Analyze traffic and usage patterns on our Website.
• Improve Website functionality and performance.
• Remember certain preferences where applicable.

You can choose to accept or decline cookies through the cookie banner on our Website or by changing the settings in your browser. If you disable certain cookies, some features of the Website may not function properly.

5. How We Share Your Information

We do not sell your personal information. We may share your information only in the following situations:

• With our internal teams and related companies who need the information to support your project.
• With trusted service providers (for example, IT, hosting, email, or analytics providers) that process data on our behalf under confidentiality obligations.
• When required by law, regulation, legal process, or government request.
• When necessary to protect our rights, property, or safety, or that of our customers or others.

6. International Data Transfers

As we work with clients and partners in different countries, your information may be transferred to and processed in jurisdictions outside of your own. These locations may have different data protection laws. Where required by law, we will take reasonable steps to ensure that an adequate level of protection is in place for your information.

7. Data Security

We use reasonable technical and organizational measures to protect your information from unauthorized access, disclosure, alteration, or destruction. However, no method of transmission over the Internet or electronic storage is completely secure, and we cannot guarantee absolute security.

8. Data Retention

We keep your personal information only for as long as necessary to fulfill the purposes described in this Privacy Policy, or for longer if required or permitted by law (for example, for tax, accounting, or legal reasons). When information is no longer needed, we will delete it or anonymize it in a secure manner.

9. Your Rights

Depending on the laws in your country or region, you may have some or all of the following rights in relation to your personal information:

• The right to request access to the personal information we hold about you.
• The right to request correction of inaccurate or incomplete information.
• The right to request deletion of your information, subject to legal requirements.
• The right to object to or restrict certain types of processing.
• The right to withdraw your consent at any time, where processing is based on consent.

To exercise any of these rights, please contact us using the details in the “Contact Us” section below. We may need to verify your identity before responding to your request.

10. Third-Party Websites

Our Website may contain links to third-party websites. We are not responsible for the content, security, or privacy practices of those websites. This Privacy Policy applies only to our Website. We encourage you to read the privacy policies of any third-party sites you visit.

11. Children’s Privacy

Our Website and services are intended for business and professional users and are not directed to children under the age of 16. We do not knowingly collect personal information from children under 16. If you believe that a child has provided us with personal information, please contact us and we will take appropriate steps to remove such information.

12. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, technologies, or legal requirements. When we make changes, we will update the “Last updated” date at the top of this page. We encourage you to review this page regularly to stay informed about how we protect your information.

13. Contact Us

If you have any questions, requests, or concerns about this Privacy Policy or our handling of your personal information, please contact us at:

STJH Cleanroom
China Headquarters
Manager Kim – Project Manager
WhatsApp: +86 135 0625 9117
WeChat: 135 0625 9117
E-mail: [email protected]
Address: No.528, Jinche Road, Wujiang District, Suzhou, China

If you believe that any information we hold about you is inaccurate or incomplete, please contact us as soon as possible and we will promptly correct any information found to be incorrect.