# Privacy Policy **Effective Date: June 16, 2026** **Data Controller:** LEISA Technology | F4, Optics Valley Future City, Dongying, Shandong, China | info@leisa.com This policy explains how we collect, use, and protect your personal information when you use www.leisa.com. **In short: we use your data only to respond to inquiries and send newsletters you've subscribed to. We don't sell it, and we don't share it with competitors.** --- ## 1. What We Collect | Context | Data Collected | Purpose | |---------|---------------|---------| | Contact form | Name, company, email, testing requirements | Generate quotations and contact you | | Newsletter | Email address | Send standards updates and industry insights | | Browsing | IP address, browser type, pages visited (auto-logged) | Site operation and security | | Font rendering | Google Fonts may collect IP | Multi-language font display | We do NOT collect: ID numbers, payment details, precise geolocation, or biometric data. ## 2. How We Protect Your Data - All data transmitted over HTTPS encryption - Form data stored on secure servers - **We do not sell, rent, or trade your information to third parties** (except where legally required) - Your inquiry is never shared with pipe manufacturers or competitors - Service providers (Feishu/Lark email, Google Fonts) access data only as strictly necessary ## 3. How Long We Keep Data | Data Type | Retention | |-----------|----------| | Contact form submissions | 2 years | | Newsletter subscriptions | Until unsubscribed | | Server logs | 30 days | ## 4. Cookie Usage This site uses: - **Essential cookie**: `lang` — remembers language preference (30 days), does not track identity - **Third-party**: Google Fonts may set cookies for font rendering See our [Cookie Policy](/en/cookie-policy). You can disable cookies in your browser settings. ## 5. Your Rights Under applicable laws (including GDPR and China's PIPL), you may: | Right | What it means | |-------|---------------| | Access | See what data we hold about you | | Rectify | Correct inaccurate data | | Erase | Request deletion of your data | | Withdraw | Revoke previously given consent | To exercise your rights, email **info@leisa.com**. We'll respond within 30 days. ## 6. Policy Updates We may update this policy. Changes will be posted here; material changes will be announced via a site notice. ## 7. Contact - **Email**: info@leisa.com - **Address**: F4, Optics Valley Future City, Dongying, Shandong, China