Privacy Policy
Last updated: 19 September 2026
This website, sigmatrailerparts.com, is operated by SHANDONG SIGMA NEW MATERIAL CO., LTD (山东西格玛新材料有限公司), a limited liability company registered in Shandong Province, China (Unified Social Credit Code: 9137080033423929XT), trading under the brand Sigma Trailer Parts. This policy explains what information we collect through this website, why we collect it, and how we handle it.
Information we collect
We only collect information you choose to give us, and basic technical data that every website receives:
- Inquiry details you submit. When you complete a quotation or contact form, we receive your name, email address, WhatsApp or telephone number, the product you are interested in, and any message you write.
- Messages you send us directly by email or WhatsApp.
- Technical data automatically sent by your browser, such as IP address, browser type, device type, referring page and the pages you view. This is used in aggregate to understand how the site is used.
We do not collect payment card details through this website, and we do not knowingly collect information from children.
How we use your information
- To answer your inquiry and send you quotations, specifications and shipping information.
- To follow up on an inquiry or an order you have placed with us.
- To improve this website's content and structure.
- To comply with export documentation and legal or accounting obligations.
We do not sell, rent or trade your personal information to third parties for their own marketing.
Cookies and analytics
This website uses cookies and similar technologies that are necessary for the site to function, and analytics cookies that help us count visits and understand which pages are useful. Analytics data is aggregated and is not used to identify you personally. You can block or delete cookies in your browser settings; the website will continue to work without them.
We may also use advertising services, including Google Ads, which set their own cookies to measure the performance of advertisements. You can review and control Google's use of this data at policies.google.com/technologies/ads.
Sharing your information
Your information is shared only where it is needed to do business with you:
- With our internal sales and logistics staff handling your inquiry or order.
- With freight forwarders, shipping lines and customs brokers, where shipping documentation requires it.
- With service providers that host this website, deliver our email, and provide analytics, acting on our instructions.
- Where we are required to do so by law.
How long we keep it
Inquiry records are kept for as long as the commercial relationship is active and for a reasonable period afterwards, and for as long as tax, customs and export regulations require records of a transaction to be kept. You can ask us to delete your inquiry record at any time.
Security
This website is served over HTTPS. Inquiry submissions are transmitted over encrypted connections and are accessible only to staff who need them to respond to you. No method of transmission over the internet is completely secure, but we take reasonable technical and organisational measures to protect your information.
Your rights
You may ask us to confirm what information we hold about you, correct it, or delete it, and you may ask us to stop sending you commercial messages. Write to info@sigmatrailerparts.com and we will respond within 30 days. Depending on where you live, local data protection law may give you further rights; we will honour requests made under those laws.
Changes to this policy
If this policy changes, the revised version will be published on this page with a new "last updated" date.
Contact
SHANDONG SIGMA NEW MATERIAL CO., LTD (山东西格玛新材料有限公司)
Registered Office: Room 01-1807, 18/F, Baifeng Commercial and Trade Center, Guanghe Sub-district, Jining High-Tech Zone, Jining City, Shandong Province 272000, China
Yard & Warehouse: West of Jiliang Highway, Quanpu Town, Liangshan County, Jining, Shandong 272614, China
Email: info@sigmatrailerparts.com
WhatsApp: +86 199 5331 6215