Legal

Privacy Policy

Effective date: 01/10/2026

1. Introduction

ZEUS COMPANY LIMITED (Công ty TNHH Thần Vương, “Than Vuong”, “we”) respects your privacy. This policy explains how we collect, use, store and protect personal information when you use thanvuong.vn, the Than Vuong app for iOS/Android (which displays this website), our technical advisor chatbot, Facebook Messenger page, and other Than Vuong channels.

2. Information We Collect

2.1. Information you provide

Full name, phone number, region (North/Central/South/Mekong).
Questions, pond descriptions, and photos/videos you submit via the chatbot or contact forms.
Email address when subscribing to the newsletter.
Product reviews, star ratings and public comments.
Files you attach in the chatbot (photos, videos, documents).
Job applications: full name, phone, email, cover message and CV file submitted on the Careers page.
Distributor, product-interest or manufacturing-partnership requests: name, company, phone, email, province, products of interest and your message.
Your phone number when requesting in-depth technical documents, verified with a one-time code sent via Zalo.

2.2. Information received via Messenger

Facebook Page-Scoped ID, display name and profile photo — received only when you message the Than Vuong Page.
Two-way message content between you and our Page.

2.3. Automatically collected data

IP address, browser type, device, OS, referrer and access behaviour (Google Analytics).
Cookies and localStorage (tv-chat-session) used to restore chat history on return visits.
When you use the AI advisor on the Products page: your IP address and the approximate province derived from it, stored with your question for statistics and customer care.
The site's own page-view counter: a random session ID, pages viewed, referrer, browser type and country (IP addresses are not stored).

3. How We Use Information

Provide technical advice for shrimp, fish and aquaculture.
Recommend products, treatment protocols and pricing.
Contact you by phone/Zalo/Messenger upon request.
Improve chatbot quality, services and website experience.
Process job applications.
Verify phone numbers before sharing in-depth documents.
Comply with legal, accounting and tax obligations.

4. Sharing with Third Parties

We do not sell personal information. We share data only with:

Meta Platforms (Facebook, Messenger): to exchange messages under Meta policies.
Internal Telegram Bot & Google Sheets: route leads, chatbot questions and advisory requests to our technical and sales teams.
Than Vuong's internal CRM and email: route product-interest, distributor, partnership requests and job applications to the responsible team, and send you confirmation emails.
AI model providers (OpenAI, Anthropic): some chatbot questions (usually those not covered by our knowledge base) are sent to the provider to generate an answer, without your name or phone number.
Cloudinary: stores photos and videos you attach to advisory forms.
Zalo (VNG): sends one-time codes to your phone when you request in-depth documents.
IP geolocation service (ip-api.com): derives an approximate province from your IP address when you use the AI advisor on the Products page.
Analytics providers (Google Analytics): anonymised traffic analysis.
Google Firebase Cloud Messaging: delivers push notifications to the Than Vuong app (anonymous device token only, see section 8).
Government authorities: upon a valid written request.

5. Data Retention

Chat history: up to 24 months from last activity.
Customer details: up to 5 years for after-sales and accounting obligations.
Products-page AI advisor logs (question, IP, province, phone if provided): up to 24 months.
Job applications: kept for recruitment and deleted on the applicant's request.
System logs / analytics: up to 26 months (GA4 default).

6. Security

We use reasonable technical and organisational measures including HTTPS encryption, admin access control, regular backups and device-level restrictions. No system is 100% secure; you are responsible for protecting your own device and account.

7. Your Rights

Under Vietnamese Cybersecurity Law and Decree 13/2023/ND-CP you may:

Request access, correction or deletion of your personal data.
Withdraw consent at any time.
Opt out of marketing messages and newsletters.
Complain to the competent data protection authority.

Email info@thanvuong.com, message our Facebook Page or call our hotline at +84 867 95 7568. We respond within 15 business days.

8. Cookies and localStorage

The site uses technical cookies and localStorage for language preference, chat sessions and analytics. You can clear or disable cookies in your browser — some features (chat history) may not work fully.

Than Vuong app (iOS/Android):if you allow notifications, your device receives an anonymous token managed by Google Firebase and is subscribed to a language-based topic. We do not store this token or link it to your name or phone number. You can turn notifications off at any time in your phone's Settings.

9. Children under 16

Our services are not intended for children under 16. If we learn that a child has provided data, we will delete it upon parent/guardian request.

10. Changes to this Policy

We may update this policy as laws or business practices change. New versions will be posted on this page with an updated effective date. Continued use constitutes acceptance.

11. Contact

For any privacy question or request, please contact us: