1. Retention of Title: Used when the seller wants to retain ownership until full payment is received, common in German commercial practice

2. Quality Assurance: Include when selling technical or specialized products requiring specific quality standards

3. Intellectual Property Rights: Necessary when the goods involve patents, trademarks, or other IP rights

4. Export Control: Required for international sales or goods subject to export restrictions

5. Confidentiality: Important for sales involving sensitive commercial information or trade secrets

6. Force Majeure: Particularly relevant for long-term supply contracts or contracts with significant delivery periods

7. Insurance: Include when specific insurance requirements are needed for high-value or risk-prone goods

8. Compliance with Laws: Important for regulated products or cross-border sales

1. Technical Specifications: Detailed technical description of the goods, including drawings, specifications, and standards

2. Delivery Schedule: Detailed timeline and requirements for delivery, particularly for multiple deliveries

3. Price List: Detailed pricing information, especially for multiple items or volume-based pricing

4. Quality Standards: Specific quality requirements, testing procedures, and acceptance criteria

5. Warranty Certificate: Detailed warranty terms and conditions

6. Required Certifications: Copies of required certificates, permits, or regulatory approvals