Privacy Policy

MarsHub Trading Co., Limited ("MarsHub," "we," "us," or "our") was founded in 2017 and has since established itself as a leading global provider of cryptocurrency mining equipment and hosting services. Our company is headquartered in Hong Kong and operates international warehouses across multiple continents to serve customers in over 45 countries worldwide.

This Privacy Policy describes how we collect, use, store, and protect your personal information when you visit our website marshub.shop, make purchases, register an account, or use our hosting services. We are committed to transparency in our data practices and compliance with applicable data protection laws, including the General Data Protection Regulation (GDPR) for European users and the California Consumer Privacy Act (CCPA) for California residents.

By using our services, you acknowledge that you have read, understood, and agree to be bound by this Privacy Policy. If you do not agree with our practices, please discontinue use of our website and services immediately. This policy applies to all users regardless of geographic location, though specific rights may vary based on local law.

We collect information that you voluntarily provide to us, as well as data generated through your interactions with our platform. The categories of personal information we collect include:

• Account Information: Name, email address, phone number, company name, billing and shipping addresses, and account credentials when you register for an account.
• Transaction Data: Order history, purchase amounts, payment method details (processed securely through third-party payment processors), invoice numbers, and transaction IDs.
• Technical Data: IP address, browser type and version, device identifiers, operating system, referring/exit pages, and timestamps of your visits.
• Miner Serial Numbers: Unique identifiers for mining equipment, including ASIC miner serial numbers, hashrate specifications, and firmware versions for warranty registration and support purposes.
• Communication Records: Emails, chat messages, support tickets, and other correspondence between you and our customer service team.
• Marketing Preferences: Your communication preferences, subscription status for newsletters, and responses to promotional campaigns.

We do not collect special categories of sensitive personal data such as racial or ethnic origin, political opinions, religious beliefs, or biometric data unless explicitly required for specific services and with your explicit consent.

MarsHub processes your personal information for the following purposes, relying on legal bases including contractual necessity, legitimate interests, consent, and legal obligations:

• Order Processing: Fulfilling your orders for miners, accessories, and hosting services, including shipping coordination, customs documentation, and delivery tracking through carriers such as DHL and FedEx.
• Customer Support: Providing technical assistance, warranty services, and after-sales support for mining equipment. This includes remote diagnostics, firmware updates, and RMA processing.
• Account Management: Maintaining your account, processing login authentication, and managing subscription services for hosting clients including hashrate monitoring and mining pool configurations.
• Marketing Communications: Sending promotional emails, newsletters, and product announcements if you have opted in. You may unsubscribe at any time using the link in our communications or through your account settings.
• Service Improvements: Analyzing usage patterns, conducting market research, and improving our website functionality, product offerings, and customer service quality.
• Legal Compliance: Meeting regulatory requirements, preventing fraud, enforcing our Terms of Service, and responding to lawful requests from authorities.
• Security Monitoring: Detecting and preventing unauthorized access, cyber threats, and suspicious activities through automated security systems.

We will not use your personal information for purposes incompatible with those listed above without obtaining your prior consent.

MarsHub does not sell your personal information to third parties. We share your data only in the following circumstances, with appropriate safeguards in place:

• Shipping Carriers: We share recipient information, shipping addresses, and contact details with logistics partners including DHL and FedEx for international delivery of mining equipment. Customs declarations require additional documentation that may include passport information for cross-border shipments.
• Payment Processors: Transaction data is processed by licensed payment service providers. We do not store complete credit card numbers on our servers; payment details are tokenized and secured by our payment partners.
• Mining Pool APIs: When you use our hosting services, we may share miner identifiers and configuration data with mining pool operators such as F2Pool to facilitate hashrate allocation and reward distribution.
• Hosting Facility Operators: For customers using our colocation services, miner serial numbers and operational data may be shared with facility operators at our data centers in Indonesia, the United States, and other locations.
• Cloud Hosting Providers: Our website infrastructure runs on cloud services that may process your technical data under our instructions. We ensure appropriate data processing agreements are in place.
• Legal Requirements: We may disclose information if required by law, court order, or government request, or if we believe disclosure is necessary to protect our rights, ensure safety, or prevent fraud.

All third-party data processors are contractually bound to maintain the confidentiality and security of your personal information and to process data only in accordance with our instructions.

MarsHub uses cookies and similar tracking technologies to enhance your browsing experience, analyze site traffic, and personalize content. Cookies are small text files stored on your device that remember your preferences and login status.

Types of Cookies We Use:

• Essential Cookies: Required for basic website functionality, including session management, security features, and shopping cart operations. These cannot be disabled without affecting site performance.
• Analytics Cookies: Help us understand how visitors interact with our website through tools like Google Analytics. This data is aggregated and anonymized to improve user experience.
• Marketing Cookies: Used to deliver relevant advertisements and track campaign performance. These are only activated with your consent.
• Preference Cookies: Remember your language selection, region settings, and display preferences for future visits.

Managing Your Cookie Preferences:

You can control cookie settings through your browser's privacy options. Most browsers allow you to block all cookies, delete existing cookies, or receive notifications before cookies are placed. However, disabling essential cookies may impair website functionality. You can also opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

Our website may also collect data through web beacons, pixel tags, and similar technologies embedded in emails to track open rates and link clicks.

MarsHub retains your personal information for as long as necessary to fulfill the purposes outlined in this Privacy Policy, subject to legal and operational requirements. Our data retention periods are designed to comply with applicable laws, including tax and accounting regulations.

Retention Schedule:

• Transaction Records: We retain order details, invoices, payment confirmations, and shipping documentation for a minimum of 7 years from the transaction date to comply with financial record-keeping obligations.
• Account Data: Active account information is retained as long as your account remains active. Upon account closure, inactive data is deleted within 30 days, except where retention is required for ongoing orders or legal claims.
• Customer Support Records: Support tickets and communication logs are retained for 3 years to facilitate warranty claims and service improvements.
• Marketing Data: If you have opted into marketing communications, your email address and preferences are retained until you unsubscribe, after which we remove you from active lists within 7 days.
• Technical Logs: Server logs and security data are retained for 90 days for security monitoring and incident investigation.
• Legal Holds: In cases of litigation, regulatory investigation, or suspected fraud, we may extend retention periods until matters are resolved.

When personal information is no longer needed, we employ secure deletion methods to ensure data cannot be recovered, including cryptographic erasure and physical destruction of storage media.

Depending on your location and applicable law, you may have the following rights regarding your personal information. MarsHub is committed to facilitating the exercise of these rights:

• Right of Access (GDPR Art. 15): You may request a copy of all personal data we hold about you, including information on how it is processed and with whom it is shared.
• Right to Rectification (GDPR Art. 16): You may request correction of inaccurate or incomplete personal data. We encourage you to update your account information promptly.
• Right to Erasure (GDPR Art. 17): Also known as the "right to be forgotten," you may request deletion of your personal data, subject to certain exceptions for legal compliance and ongoing transactions.
• Right to Data Portability (GDPR Art. 20): You may request your personal data in a structured, commonly used, and machine-readable format, and request transmission to another controller where technically feasible.
• Right to Withdraw Consent (GDPR Art. 7): Where processing is based on consent, you may withdraw consent at any time without affecting the lawfulness of prior processing.
• Right to Object (GDPR Art. 21): You may object to processing based on legitimate interests or for direct marketing purposes.
• Right to Restrict Processing (GDPR Art. 18): You may request limitation of processing activities while disputes are resolved.
• CCPA Rights (California Residents): California residents have additional rights including the right to know what personal information is collected, right to delete, right to opt-out of sale, and right to non-discrimination.

To exercise any of these rights, please contact our Data Protection Officer at Sales@marshub.shop or through our contact page. We will respond to your request within 30 days. For CCPA requests, we will verify your identity before processing.

MarsHub operates globally with data centers and hosting facilities in multiple jurisdictions, including Indonesia, the United States, the People's Republic of China, and Hong Kong. Your personal information may be transferred across international borders when you use our services.

Cross-Border Data Transfers:

• Infrastructure Locations: Our website is hosted on servers that may be located in different countries. Technical logs and website analytics data may be processed in any of our operational locations.
• Shipping Destinations: International orders require customs documentation that may be processed in the destination country, potentially exposing data to local law enforcement authorities.
• Customer Support: Our support team operates across multiple time zones, and your data may be accessed by staff in different countries when providing assistance.

Legal Frameworks for International Transfers:

We ensure adequate protection for international transfers through the following mechanisms:

• Standard Contractual Clauses (SCCs) approved by the European Commission for transfers from the EU/EEA
• Binding Corporate Rules for intra-group transfers
• Compliance with the EU-U.S. Data Privacy Framework for transfers to participating U.S. organizations
• GDPR Article 49 derogations where appropriate

By using our services, you acknowledge that your data may be transferred to countries with different data protection standards than your own. We take appropriate safeguards to ensure your data remains protected in accordance with this Privacy Policy.

MarsHub implements comprehensive technical and organizational security measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction. Our security infrastructure is designed to meet industry standards and comply with applicable data protection regulations.

Technical Security Controls:

• TLS Encryption: All data transmitted between your browser and our servers is encrypted using TLS 1.2 or higher. Our website enforces HTTPS for all connections.
• Data Encryption: Sensitive data at rest is encrypted using AES-256 encryption, including customer records, payment information, and communication logs.
• Access Control: Role-based access control (RBAC) limits data access to authorized personnel only. Multi-factor authentication is required for administrative accounts.
• Network Security: Firewalls, intrusion detection systems (IDS), and distributed denial-of-service (DDoS) protection safeguard our infrastructure.
• Vulnerability Management: Regular security scans, penetration testing, and prompt application of security patches.

Organizational Security Practices:

• Annual security audits conducted by independent third-party auditors
• Employee training on data protection and security awareness
• Background checks for employees with access to sensitive customer data
• Incident response procedures and breach notification protocols
• Security policies reviewed and updated annually

While we strive to protect your information, no method of transmission over the Internet or electronic storage is 100% secure. We cannot guarantee absolute security, but we continuously improve our measures to protect your data.

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us through the following channels:

• Email: Sales@marshub.shop
• WhatsApp: +86 19176611580
• Telegram: @marshub
• Contact Form: /contact

For GDPR-related matters, you may also contact your local data protection authority. A list of EU data protection authorities is available on the European Commission's website.

Policy Updates:

This Privacy Policy is reviewed and updated periodically to reflect changes in our practices, technology, legal requirements, or business operations. When we make material changes, we will:

• Update the "Last updated" date at the top of this policy
• Post a prominent notice on our website for 30 days
• Send email notification to registered users for significant changes
• Archive previous versions for your reference

Last Updated: June 22, 2026

Previous Version: This policy supersedes all previous privacy notices. Material changes since the last version include updates to reflect current GDPR requirements and expansion of our international data transfer practices.