Last updated: 27 October 2026
This policy explains what personal information Hydrodynamic Enterprise Co Ltd (“Hydrodynamic”, “we”, “us”) collects through hydro-dynamic.com and when you contact us, how we use it, and the choices you have.
Who we are
Hydrodynamic Enterprise Co Ltd, Flat F, 6/F, Wah Hing Industrial Mansions, 36 Tai Yau Street, San Po Kong, Kowloon, Hong Kong. Email: info@hydro-dynamic.com. Our factories, Hydrodynamic Enterprise (Heyuan) Co Ltd in China, Hydrodynamic (Vietnam) Company Ltd in Vietnam and Hydrodynamic Enterprise (Myanmar) Company Ltd in Myanmar, handle production enquiries with us.
What we collect
- Information you send us. When you email or call us about OEM or private label manufacturing, quotes, samples or orders, we receive what you include, such as your name, email address, phone number, company, job title and project details.
- Technical information. Like most websites, our hosting provider keeps server logs (IP address, browser type, pages requested, date and time) to keep the site secure and running.
This website has no forms, and we do not use analytics or advertising tools on it.
How we use it
- To answer your enquiries and prepare quotes, samples and orders.
- To manage our business relationship with you, including production, shipping and quality follow-up.
- To keep the website secure and working.
- To meet our legal obligations.
We do not sell your personal information and we do not use it for targeted advertising. If you are a brand, retailer or distributor who has contacted us, we may send you information about our manufacturing services; you can ask us to stop at any time.
Who we share it with
- Our factories and related companies, only where needed to answer your enquiry or fulfil your order.
- Service providers who host our website and email for us, and logistics and testing partners when your order needs them.
- Authorities, when the law requires it.
Cookies and maps
This website does not use analytics, advertising or tracking cookies. WordPress sets cookies only for staff who log in to manage the site. Our fonts and scripts are served from our own server. Pages that show a map load it from Google Maps; when you view one, Google receives your IP address and may set cookies under Google’s own privacy policy.
Links to other websites
Our pages link to other websites, such as our sister company Stallion Sport, our partner Sport Dimension and map services. Those sites are run by their owners under their own privacy policies, and we are not responsible for how they handle your information.
How long we keep it
We keep emails and business records for as long as we need them for your enquiry or our business relationship, and as long as the law requires, and then we delete them. Our host keeps server logs for a short time.
Your rights
You can ask us for a copy of the personal information we hold about you, and ask us to correct or delete it, by emailing info@hydro-dynamic.com. Depending on where you live, you may have further rights:
- European Union and United Kingdom: under the GDPR you can also object to or restrict our use of your information, ask for it in a portable format, and complain to your local data protection authority. We rely on taking steps at your request or performing a contract (enquiries and orders), our legitimate interests (business communications and site security) and our legal obligations.
- Hong Kong: under the Personal Data (Privacy) Ordinance you can ask to access and correct your personal data.
- Mainland China, Vietnam and Myanmar: you have the rights given by local personal information laws, which you can exercise by emailing us.
We will reply within the time the law requires.
International transfers
Hydrodynamic is based in Hong Kong with factories in China, Vietnam and Myanmar, and works with customers and service providers in other countries, so your information may be processed outside the country where you live. Where the law requires, we use appropriate safeguards for these transfers.
Children
This website is meant for businesses. We do not knowingly collect personal information from children.
Security
We use reasonable technical and organisational measures to protect personal information. No website or email system is completely secure.
Changes to this policy
We may update this policy from time to time. The date at the top shows when it last changed.
Contact
Email info@hydro-dynamic.com or call +852 3516 2388.