Environment-Related Substances Management
In 2010, LITEON implemented the LITEON LS301 standards by following the IECQ QC 080000 system and taking into account the latest trends in other countries, regulations, and customer needs. The LS301 standards apply to all products. The LS301 standards are revised from time to time after calibration with different versions adopted by different business units. The total number of restricted substances reached 564 in 2024.
In response to recent customer and regulatory demands, LITEON has placed PFAS (per- and poly-fluoroalkyl substances) on the list of prohibited substances, with a specification established for achieving PFO/PHOA-free status. Additionally, it has set a goal to reduce the halogen concentration in products by 2025, including Cl<700 ppm, Br<500 ppm, and Cl+Br<1000 ppm.
The in-house Green product Management System (GMS) works with the "restricted substances management" and " design development management" procedures already in place as well as the LS301 standards for hazardous substance management. LITEON also requires that suppliers (including contractors) comply with the LITEON Guidelines for Green Procurement and submit the Supplier Statement of Restricted Substances Compliance for material/part acknowledgment and internal control. Furthermore, LITEON states explicitly in all procurement contracts the strict requirement for materials, parts, or semi-finished goods to comply with or exceed RoHS, REACH, California Proposition 65, and Montreal Protocol. In response to recent customer and regulatory demands, LITEON has placed PFAS (per- and poly-fluoroalkyl substances) on the list of prohibited substances, with a specification established for achieving PFO/PHOA-free status, and limits on other PFAS will be gradually tightened.
With the implementation of green supply chain management, we hope to achieve the goal of sourcing environmentally friendly materials, manufacturing and providing to our customers low-toxicity and low-pollution products to minimize any harmful impact they may have on the human body or the environment.
LITEON installs the Green product Management System (GMS) to effectively manage and review compliance with the LS301 criterion for raw materials, parts, or semi-finished goods provide by the suppliers. GMS combines material requirements, international laws, international directives, customer policies, and supplier information. Suppliers file product testing and analysis results for the system to determine automatically whether they comply with the rules and directives. LITEON will summarize and analyze the data, and check the degree of compliance with the LS301 standards. Furthermore, GMS not only actively delivers information on green product management at LITEON to customers, but also feeds environmental requirements or provisions for green products, such as ErP, WEEE, and 3R, from customers into the management system to provide a basis for green product design.
LITEON made a running change to replace materials, parts, and modules containing diisobutyl phthalate (DIBP). The substance ceased to be used in any of the products in January 2019.
VOCs Management and Reduction Performance
Volatile organic compounds (VOCs) emitted at LITEON primarily originate from organic solvents used in production processes, such as soldering flux and isopropanol vapors. Emissions of nitrogen oxides (NOx) and sulfur oxides (SOx) from emergency generators, testing equipment, and hot water boilers in residential areas are considered trace amounts.
To manage VOC emissions, LITEON adopts a comprehensive approach that includes management systems, process improvements, employee training, and regular third-party inspections. Since 2017, the company has strengthened outdoor air pollution controls at its sites. Emission treatment systems are designed based on plant inspection data, actual factory conditions, and local environmental regulations, and typically include two or more levels of control—such as electrostatic precipitators, UV photocatalysis, and activated carbon absorption.
Various reduction measures have been implemented across operating plants, including waste collection and treatment transformation, the use of low-VOC cleaning products, and switching to low-VOC coatings. These efforts aim to reduce emissions from the source through to final discharge treatment.
The systems are designed to achieve multiple goals: removing VOC pollutants, optimizing control, reducing resource consumption, and ensuring operational safety. VOC emissions are calculated based on third-party environmental compliance inspection reports and equipment operating hours. The results consistently fall below regional regulatory limits and continue to show a downward trend.
In 2024, total VOC emissions from LITEON’s major global manufacturing sites amounted to 11.04 tons.
Note: Emission data includes Changzhou, Tianjin, Huizhou, Dongguan, and Guangzhou in a total of 9 production sites.
