Occupational Health and Safety Management System Certification Certificate

Environmental Management System Certification Certificate

Quality Management System Certification Certificate

Credit Rating Certificate

Quality and Credit Rating Certificate

Certificate of Contract Abiding and Creditworthy Enterprise

Certificate of Credit Rating for Heavy Service

Quality and Service Integrity Unit Certificate

Industry Integrity Unit Level Certificate

Enterprise Credit Rating Certificate

Lixin Unit Certificate

Integrity Professional Manager Certificate

Certificate of Honest Entrepreneur

Certificate of Model Unit for Honest Business Operation

Honesty Supplier Grade Certificate