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Annual performance
The Company has continued to demonstrate a strong commitment to environmental management and sustainable governance, responding to global climate action demands with tangible results. During the year, the Company conducted a comprehensive group-wide greenhouse gas inventory and obtained external third-party verification, ensuring data transparency and reliability, and laying a solid foundation for the formulation of subsequent carbon reduction strategies and performance tracking.
In terms of energy transition, the group-wide proportion of green electricity usage increased to 42.19%, with a total of 17.55 million kWh of renewable energy adopted, effectively reducing the Company’s operational carbon footprint and supporting the development of the renewable energy market. Water resource management also achieved measurable results: compared with the 2022 baseline year, total group-wide water withdrawal decreased by 46.76 million liters, representing a reduction of 15%, reflecting the Company’s continuous efforts to enhance process efficiency and water recycling and reuse. In addition, compared with the baseline year, group-wide Scope 1 and Scope 2 greenhouse gas emissions were reduced by 9,037 metric tons of CO₂-equivalent, a reduction of as much as 37%, demonstrating significant achievements through the adoption of energy-saving technologies, equipment improvements, and the use of green electricity.
The Company also continues to maintain IECQ QC 080000 certification, demonstrating high standards in hazardous substance management and the implementation of comprehensive controls across design, procurement, and manufacturing processes. Overall, through systematic management and continuous innovation, the Company is steadily advancing the reduction of its environmental footprint and taking more resilient steps toward sustainable operations.
42.19 %
Renewable electricity ratio
46.76 million liters
Water withdrawal reduction
9037 tCO₂e
Category 1, Category 2 greenhouse gas emission reduction
Reducing Energy Consumption
With the steep rise in energy costs, how the company implements effective energy management and reduces energy expenses will be a critical issue in the years ahead.
In recent years, Sunon has launched several energy-saving initiatives. These include upgrading or replacing high energy-consuming equipment with newer, energy-efficient technologies, introducing energy-saving air compressors, and installing heat pump systems in burn-in chambers used for thermal cycling tests, which require continuous high-temperature operation.
All operating locations are actively implementing comprehensive energy management measures. Notably, in 2024, the Kaohsiung headquarters became the first site to adopt the ISO 50001 Energy Management System, which was successfully certified by an independent third-party verification provider.
Looking ahead, Sunon plans to gradually roll out the ISO 50001 Energy Management System across all operational sites. This will enable more precise monitoring and control of energy usage, strengthening the company’s overall energy management capabilities.
• Energy Saving Promotion
The Company actively promotes energy conservation in its office spaces through a variety of initiatives. These include turning off non-essential lights for one hour during lunch breaks, maintaining air conditioning at optimal temperatures, and encouraging the use of LED lighting and energy-efficient equipment. Employees are regularly reminded to switch off unnecessary devices—such as lights, air conditioning, and copiers—when leaving the office. Through these practical energy-saving actions, unnecessary energy consumption is reduced, and employees gradually develop long-term habits of energy-conscious behavior.
Every year, on the last Saturday of March, Sunon’s headquarters leads the participation of its global offices and factories in the “Earth Hour” event. From 8:30 PM to 9:30 PM, all non-essential power is turned off as part of a worldwide initiative to protect the planet. Employees, along with their families and friends, are encouraged to join this meaningful event to take action for the Earth and our shared home.
Renewable Energy Usage
Kunshan Guangxing Factory built a solar power generation system in 2013, effectively reducing the use of general electricity and reducing carbon dioxide emissions; Beihai Sunon Factory and Beihai Lizhun Factory also started purchasing renewable energy from 2023.
In this year, Sunon’s total renewable energy—both self-generated and purchased—reached 17,551,350 kWh, accounting for 43.21% of the Group’s total electricity consumption. This amount of renewable energy usage is estimated to reduce approximately 10,278.0706 tCO₂e. Looking ahead, Sunon remains committed to continuously increasing its use of renewable energy.
Note: Carbon reduction benefit = Total renewable energy production (kWh) x China's average carbon dioxide emission factor for electricity in 2022 (excluding non-fossil energy electricity from market-based transactions) 0.5856 ÷ 1,000
| Plant | Renewable Energy Item | 2022 | 2023 | 2024 | |||
|---|---|---|---|---|---|---|---|
| Generation/Purchase Amount (kWh) | Reduced Carbon Emission (tCO₂e) | Generation/Purchase Amount (kWh) | Reduced Carbon Emission (tCO₂e) | Generation/Purchase Amount (kWh) | Reduced Carbon Emission (tCO₂e) | ||
| Kunshan Guangxing Plant | Self-produced Photovoltaics | 455,065 | 270.3996 | 684,508 | 406.7347 | 643,350 | 376.7458 |
| Beihai Sunon Plant | Purchased Photovoltaics | 0 | 0 | 2,345,423 | 1,393.6503 | 12,344,000 | 7,228.6464 |
| Beihai Lizhun Plant | Purchased Photovoltaics | 0 | 0 | 901,890 | 535.9030 | 4,564,000 | 2,672.6784 |
| Total | 455,065 | 270.3996 | 3,931,821 | 2,336.2880 | 17,551,350 |
10,278.0706 |
|
Note 1: In 2022, the self-produced solar photovoltaic power generation was relatively low, mainly because in May and June, the main board of the solar photovoltaic system was under maintenance and power generation was suspended.
Note 2: In 2023, the self-produced solar photovoltaic power generation was higher than in 2021 and 2022 due to more sufficient sunlight.