Privacy statement

Last updated: 7 October 2026

This statement explains what information is processed when you visit en.bjzhtk.com and how you can contact us about it. The site is operated by Sinomacro Dyan Geotec (Beijing) Limited (SINOMACRO).

Website statistics (only if you allow them)

This website does not ask you to register or submit forms. With your permission, we use Baidu Tongji (Baidu Analytics) to understand which pages are visited, how visitors arrive and which kinds of devices they use, and to count clicks on brochure (PDF), telephone and email links. A click is counted only as a click; it does not show that a file was downloaded or that you contacted us.

Baidu Tongji is not loaded until you choose “Allow statistics”. Once allowed, it sets cookies in your browser and receives information such as IP address, browser type, device and operating system, the referring page, the pages viewed and the time of the visit. We send the page path without query strings, except named campaign tags (utm_*). We use these statistics to improve the website and view them as aggregated reports; we do not use them to identify individual visitors. This information can still relate to you, which is why it is optional.

According to the Baidu Tongji privacy policy (Chinese) published by Baidu, data collected by Baidu Tongji is stored in mainland China and is retained under Baidu's rules.

If your browser sends a Do Not Track or Global Privacy Control signal, statistics are not loaded.

Statistics settings

Turning statistics off stops further collection from this browser and removes the Baidu Tongji cookies set on this website. Browsing products, articles, images, videos and downloads does not depend on your choice.

Service logs

Our hosting and content delivery provider (Alibaba Cloud) generates access logs, including IP address, requested address and time, for the security and operation of the service. These logs are retained under the provider's service rules and are used only for security and troubleshooting.

Information you send us

If you contact us by email or telephone, we use the details you provide, such as your name, company, contact information and project requirements, to reply to your enquiry and provide product and technical support. We keep them for as long as the enquiry and any resulting business relationship require, then delete or anonymise them unless the law requires longer retention. We do not sell this information or share it with third parties for their own marketing.

Your rights and contact

You can withdraw consent to statistics at any time in the settings above. You may also ask us about, or request correction or deletion of, personal information you have sent us, or ask about website statistics. Statistics data held by Baidu cannot be edited by us directly; we will help with the request and you can also contact Baidu Tongji as described in its policy. Email anne.wang@bjzhtk.onaliyun.com. We will respond within 15 working days after verifying the request.

Sinomacro Dyan Geotec (Beijing) Limited, C2-110, Sailon International Cultural and Creative Park, Chaoyang District, Beijing, China

Changes

If our processing changes, we will update this page and its date.