Here’s a professional and comprehensive Privacy Policy tailored for your website:

Privacy Policy

Last Updated: May 31, 2026

This Privacy Policy explains how Block Trading Limited (“we,” “us,” or “our”), a company registered in Hong Kong, collects, uses, discloses, and protects your personal data when you visit or use https://holostacks.com (the “Site”), our Pokémon Trading Cards marketplace and ecommerce platform.

We are committed to protecting your privacy and handling your personal data in accordance with the Personal Data (Privacy) Ordinance (Cap. 486) of Hong Kong (“PDPO”).

By using the Site, you consent to the practices described in this Privacy Policy. If you do not agree, please do not use the Site.

1. Information We Collect

We collect the following types of personal data:

Information You Provide Directly:

  • Account information (name, email address, username, password)
  • Shipping and billing address
  • Phone number
  • Payment information (processed by third-party payment gateways)
  • Purchase history and order details
  • Seller information (if you sell on our platform): business name, bank account details, tax information
  • Communications with us (customer support messages, reviews, feedback)

Information Collected Automatically:

  • IP address, browser type, device information, and operating system
  • Usage data (pages visited, time spent, clicks, referring website)
  • Cookies and similar tracking technologies (see Section 6)

Information from Third Parties:

  • Authentication services (if you sign up via Google or other platforms)
  • Payment processors and shipping partners

2. How We Use Your Personal Data

We use your personal data for the following purposes:

  • To process and fulfill your orders (buying and selling Pokémon cards)
  • To manage your account and provide customer support
  • To communicate with you about transactions, updates, and promotions
  • To improve our Site, services, and user experience
  • To prevent fraud, maintain security, and enforce our Terms of Service
  • For marketing and advertising (only with your consent where required)
  • To comply with legal obligations under Hong Kong law

3. Legal Basis for Processing (PDPO)

We collect and process your personal data based on:

  • Your consent
  • Performance of a contract (e.g., fulfilling your orders)
  • Legitimate business interests
  • Compliance with legal or regulatory requirements

4. Sharing of Personal Data

We may share your personal data with:

  • Service Providers: Payment processors, shipping companies, hosting providers, email service providers, and analytics tools (e.g., Google Analytics)
  • Sellers/Buyers: When you buy or sell on the marketplace, necessary information (e.g., shipping address) is shared with the other party
  • Legal Authorities: When required by law, court order, or government request in Hong Kong
  • Business Transfers: In the event of a merger, acquisition, or sale of assets

We do not sell your personal data to third parties for marketing purposes.

5. Data Retention

We retain your personal data only for as long as necessary to fulfill the purposes outlined above or as required by applicable law. After that period, we will securely delete or anonymize your data.

6. Cookies and Tracking Technologies

We use cookies and similar technologies to:

  • Remember your preferences and login details
  • Analyze Site traffic and usage
  • Deliver personalized advertising (where permitted)

You can manage your cookie preferences through your browser settings. Note that disabling certain cookies may affect the functionality of the Site.

7. Data Security

We implement reasonable technical and organizational measures to protect your personal data from unauthorized access, loss, misuse, or alteration. However, no method of transmission over the internet or electronic storage is 100% secure.

8. Your Rights Under PDPO

As a data subject in Hong Kong, you have the right to:

  • Access your personal data
  • Request correction of inaccurate data
  • Request erasure of your data (subject to legal exceptions)
  • Withdraw consent to processing
  • Object to direct marketing

To exercise these rights, please contact us using the details below. We may charge a reasonable fee for data access requests as permitted by law.

9. International Data Transfers

Your data may be transferred to, stored, and processed in countries outside Hong Kong (e.g., by our service providers). We ensure appropriate safeguards are in place to protect your data.

10. Children’s Privacy

Our Site is not intended for children under 18 years old. We do not knowingly collect personal data from children. If we become aware that we have collected data from a child under 18 without parental consent, we will take steps to delete it.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you by posting the revised version on this page and updating the “Last Updated” date. Your continued use of the Site after changes constitutes your acceptance of the updated policy.

12. Contact Us

If you have any questions or concerns about this Privacy Policy or our data practices, please contact us:

Block Trading Limited Email: [support@holostacks.com] Phone: (852) 9455-0575