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TNJ Chemical Successfully Passes ISO Management System Annual Surveillance Audit

11-09, 2026

On November 9, the audit experts from China Quality Certification Center (CQC) visited TNJ Chemical to conduct the annual surveillance audit of the ISO management system. In strict accordance with standard requirements, the audit team carried out a comprehensive verification covering production operation, quality control, process management, continuous improvement and other sections via site inspection, document review, staff interviews and record sampling.

After comprehensive evaluation, the expert group unanimously confirmed that TNJ ISO management system operates effectively on an ongoing basis. All procedures are implemented in compliance with relevant specifications. TNJ Chemical has successfully passed this annual audit and retains the certification qualification.

Since the establishment of the system, TNJ Chemical has been empowering development with standardized management. The system requirements have been integrated into the whole chain of chemical R&D, production, quality control and foreign trade. We strictly adhere to quality benchmarks and consolidate compliance foundations. Going forward, we will implement the improvement suggestions put forward by the expert group, continuously optimize management processes, strengthen staff awareness of the management system, stabilize product quality at higher standards, build trust with global customers and support the sound and high-quality development of the enterprise.