1. Supplier Quality Control

• During the design and development stage, catalyst companies conduct advance planning and select suppliers carefully. They confirm product specifications and drawings, investigate the production capabilities and technical levels of suppliers, and require suppliers to implement acceptable quality assurance systems.

• Catalyst companies sign prototype contracts with selected suppliers and provide detailed technical documents. They also help suppliers acquire the necessary resources to meet prototype requirements.

• The company inspects the products provided by suppliers, tracks their physical quality and usage performance, collects user feedback, and feeds it back to suppliers. They also establish ledgers and reports for tracking and analysis.

2. Procurement and Supply Quality Management

• Catalyst companies need to establish comprehensive quality standards for procured materials to ensure the quality and supply stability of raw materials.

• The company evaluates suppliers through methods such as sample inspection, small - batch trials, and performance assessment to ensure their product quality and supply capabilities.

3. Production Process Quality Control

• The company clarifies the quality responsibilities of each department and individual in the production process and establishes a civilized production management system.

• The company ensures that all materials, processes, and finished products pass strict quality inspections. This means that substandard materials are not used in production, substandard work - in - process items are not transferred to the next stage, substandard components are not stored in the warehouse, and substandard products are not shipped to customers.

• The company focuses on controlling key processes, regularly assesses process capabilities, and takes corrective actions promptly when abnormalities are detected.

4. Quality Management System Planning and Implementation

• The company compiles a product manufacturing quality control plan, including process specifications, inspection documents, training plans, etc.

• Catalyst companies use the ISO 9000 series of standards to regulate quality management and ensure the effective operation of the quality management system.

5. Quality Improvement and Continuous Optimization

• The company uses the PDCA (Plan - Do - Check - Act) cycle method for quality improvement.

• The company implements Six Sigma management to continuously optimize production and service processes and reduce defect rates.