Starting with supplier selection, we maintain long-term, stable relationships with reliable partners. All incoming raw materials undergo meticulous selection and rigorous audits to ensure they meet Oplus's stringent standards and requirements.

In raw material procurement, we implement a unique code management system, assigning each batch a unique identifier. This system records supplier information, production dates, and batch numbers for precise tracking and traceability.

During production, Oplus employs advanced automated equipment and stringent operational procedures. Each production stage is closely monitored and data-recorded, minimizing losses and errors, ensuring process stability and consistency.

Beyond production, we emphasize quality control in packaging and storage. Each bottle of e-liquid undergoes rigorous packaging inspections to ensure sealing and anti-counterfeiting integrity. We use appropriate packaging materials to prevent damage or contamination during transportation and storage. Our ERP management system accurately tracks and manages finished products to ensure their safety and integrity during transport.

Oplus's quality control policies, standard operating procedures (SOPs), and guidelines are developed based on our corporate philosophy, mission, and behavior charter. These policies promote a consistent quality mindset and system, not only meeting customer expectations but also ensuring timely improvements in our daily activities. The guidelines incorporate local quality management practices to ensure consistency across all business units and subsidiaries.

In summary, Oplus is committed to quality control through digital tracking and traceability systems, ensuring that every stage from raw material intake to product distribution meets strict quality standards and requirements. Our goal is to provide high-quality, reliable, and safe e-liquid products that meet regulatory demands and customer needs. Every batch is equipped with detailed traceability information, enabling tracking from raw material origin through every production stage.