On October 23, 2025, an ISO 9001 Quality Management System audit team composed of senior experts from the China Quality Certification Center (CQC) visited TNJ Chemical for a two-day annual surveillance audit. The audit aimed to comprehensively evaluate the continuous compliance and operational effectiveness of the company's quality management system, ensuring its ongoing adherence to international standard requirements.

During the review process, the expert panel conducted a systematic and in-depth examination of TNJ quality management system through various methods, including on-site record reviews, personnel interviews, production process observations, and showroom visits. The panel focused on key aspects such as product design and development, project management, quality control, and after-sales service, providing high praise for the company's standardized operations and effective implementation.

During the closing meeting, the expert panel unanimously agreed that TNJ quality management system operates robustly and matures, with all processes meeting the requirements of the ISO 9001 standard, and approved the on-site audit. The experts particularly noted that TNJ significant technological innovation capabilities, profound quality culture heritage, and high-level professional competence of employees have laid a solid foundation for continuously delivering products and services that meet customer and regulatory requirements.

Manager Cheng, the CQC certification leader of TNJ Chemical, stated that this audit would serve as an opportunity to continuously advance the construction of a quality culture system, driving the quality management system to higher levels with higher standards and stricter requirements. In the future, our company will continue to uphold the principle of "quality first," continuously optimize processes, strengthen innovation, create greater value for customers, and inject strong momentum into the sustainable development of the company.