Privacy & Cookie Policy

Who We Are

This website is operated by Tengine Innovation (Beijing) Instruments Inc. ("TENGINE", "we", "us"), Floor 6, Building 8, Yard 1, Nongda South Road, Haidian District, Beijing, China. For any privacy question or request, contact us at contact@tengine.com.cn.

What We Collect

Inquiry and contact forms: when you request a quote, consultation or datasheet, we collect the details you submit — name, company, country, email address, phone or WhatsApp number, and your message — solely to respond to your request and, where relevant, to prepare a quotation.

Analytics data: with your consent (where required), we use Google Analytics 4 to understand how visitors use this site — pages visited, approximate region, device type and referral source. This data is aggregated and does not identify you personally.

We do not sell your personal data, and we do not share it with third parties except the service providers listed below who process it on our behalf.

Cookies We Use

Strictly necessary: this site does not set any cookie of its own for public visitors. (A session cookie is used only in the password-protected admin area.)

Analytics cookies (Google Analytics 4): _ga and _ga_* — used to distinguish visitors and measure site usage; lifetime up to 2 years. These cookies are only set after you click "Accept" in the consent banner if you are visiting from the EU, EEA, UK or Switzerland.

Advertising measurement: if you arrive from a Google Ads campaign, Google may use consent-based signals to measure conversions. Where consent is not given, measurement happens in an anonymized, cookieless form (Google Consent Mode).

Your Choices and Rights

You can accept or reject analytics cookies at any time via the consent banner shown on your first visit. To change your choice later, clear this site's data in your browser and the banner will appear again.

If you are in the EU/EEA, UK or Switzerland, you have the right to request access to, correction of, or deletion of your personal data, and to object to or restrict its processing. Email contact@tengine.com.cn and we will respond within 30 days.

Service Providers & International Transfer

We use Google LLC (Google Analytics, Google Tag Manager) for analytics and measurement, and Alibaba Cloud (Singapore) for website hosting. Data may be processed in Singapore and other locations where these providers operate, under their respective data protection frameworks.

Data Retention

Inquiry records are kept for up to 24 months to handle follow-up communication, then deleted or anonymized. Analytics data in Google Analytics is retained for 14 months.

Changes to This Policy

We may update this policy from time to time. The current version is always available on this page. Last updated: September 2026.