Terms of Service

Last Updated: January 2025

1. Service Description

Blast Drafter provides professional blasting design tools for underground mining and tunnel engineering, including:

  • Blast hole design functionality
  • Tunnel design tools
  • Void ratio calculator
  • Fragmentation analysis
  • Blasting simulation
  • Technical calculation tools

2. Account Registration

To use our services, you must:

  • Provide accurate and complete registration information
  • Maintain the security of your account credentials
  • Update your account information as needed
  • Accept responsibility for all activities under your account

3. Acceptable Use

You agree to use our services only for lawful purposes and in compliance with all applicable laws and regulations. You must not:

  • Interfere with or disrupt service operations
  • Upload malicious software or harmful content
  • Attempt unauthorized access to systems or data
  • Violate intellectual property rights
  • Engage in any form of cyber attack

4. Intellectual Property

Our Rights: Blast Drafter and its content are protected by intellectual property laws. We retain all rights, ownership, and interests in the service.

Your Rights: You retain ownership of content you upload. You grant us a license to use your content to provide our services.

5. Disclaimer of Warranties

Our services are provided "as is" without warranties of any kind. We do not guarantee:

  • Error-free or uninterrupted service
  • Accuracy of calculation results
  • Applicability of results to specific projects

Professional Use: Our tools are for auxiliary design purposes only and should not replace professional engineering judgment.

6. Limitation of Liability

To the maximum extent permitted by law:

  • Our total liability shall not exceed the fees you have paid
  • We are not liable for indirect, incidental, or consequential damages
  • You use the service results at your own risk

7. Service Modifications

We reserve the right to:

  • Modify or discontinue services
  • Update these terms of service
  • Change service features or pricing

We will provide reasonable notice of material changes.

8. Account Termination

We may terminate your account for:

  • Violation of these terms
  • Extended periods of inactivity
  • Legal requirements

You may delete your account at any time.

9. Governing Law

These terms are governed by the laws of the People's Republic of China. Any disputes will be resolved through negotiation or arbitration.

10. Entire Agreement

These terms constitute the complete agreement between you and us regarding the use of our services.

11. Contact Information

For questions about these terms, contact us at: