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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 43.94%, with a total of 21.05 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 22.29 million liters, representing an approximately 27% reduction of water use intensity, 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 9,872 metric tons of CO₂-equivalent, a reduction of as much as 40%, 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.
43.74 %
Renewable electricity ratio
27 %
Water use intensity reduction
9872 tCO₂e
Category 1, Category 2 greenhouse gas emission reduction
Management and Analysis
Against the backdrop of global climate change and net zero transition trends, the electronic components industry generally faces the challenges of high energy intensity and continuously growing electricity demand, as its manufacturing processes are highly dependent on electricity, equipment must operate for extended periods, and precision manufacturing environments have stringent requirements. In response to these challenges, Sunon upholds its responsibility for sustainable corporate development and actively promotes its energy management policy. By introducing energy management systems, improving equipment efficiency, optimizing processes, and expanding the use of renewable energy, the Company continues to reduce energy consumption and GHG emissions, gradually advancing toward low-carbon operations and environmental sustainability.
Energy Management Targets and Performance
We aim to increase the proportion of renewable energy use year by year and plan to achieve a renewable energy usage ratio of over 50% across the Company by 2030, gradually moving toward a low-carbon operating model.
| Management Item | 2025 | Short-term Target | Medium-term Target | Long-term Target | ||
|---|---|---|---|---|---|---|
| Target | Actual Performance | Achievement Status | 2030 | 2040 | 2050 | |
| Renewable energy usage ratio | ≥ 14.4 % | 43.94% | ✅ Achieved | ≥ 21.6 % | ≥ 36 % | ≥ 50.4 % |
Energy-Saving Management Measures
To continuously improve energy efficiency and reduce energy consumption in the course of operations, Sunon promotes energy-saving management measures through multiple approaches, including equipment improvement, process optimization, and employee participation. Each operating site also continues to identify energy-saving opportunities and implement energy-saving projects, gradually enhancing overall energy management performance. Going forward, Sunon will continue to promote various energy-saving improvement plans, further reducing energy use and the environmental impacts of operating activities by enhancing equipment efficiency and optimizing management mechanisms.
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01
Equipment and Technology Optimization
- Implement energy-saving retrofits or replace high energy-consuming equipment to improve equipment energy efficiency.
- Introduce energy-efficient air compressor systems to reduce energy consumption during equipment operation.
- Install heat pump circulation systems to provide the heating and cooling circulation required for the prolonged high-temperature operation of burn-in rooms, thereby improving energy utilization efficiency.
- Continue replacing lighting equipment with LED lighting to reduce electricity demand for lighting.
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02
Energy Management and Continuous Improvement
- Each site regularly identifies energy consumption hotspots and energy-saving opportunities and plans energy-saving improvement projects accordingly.
- Continuously track the effectiveness of implemented energy-saving measures through the energy management system to ensure the realization of energy-saving benefits.
- Continue strengthening energy management capabilities and improving energy efficiency through cross-site experience sharing and management mechanisms.
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03
Energy-Saving Culture and Employee Participation
- Promote energy conservation and carbon reduction concepts and encourage employees to implement daily energy-saving actions, such as turning off unnecessary lighting, maintaining appropriate air-conditioning temperatures, and switching off power equipment when not in use.
- Promote measures such as turning off lights during lunch breaks and shutting down equipment when leaving the office to reduce unnecessary energy consumption.
- Participate annually in the global Earth Hour campaign, calling on employees at sites worldwide and their family members to join and support energy conservation, carbon reduction, and environmental protection through concrete action.
Energy Use Profile
The types of energy used by Sunon vary according to the nature of each plant or office and mainly include purchased electricity, solar power, diesel, gasoline, compressed natural gas, and liquefied petroleum gas. Among these, purchased electricity is the primary energy source, accounting for approximately 55.02% of total energy consumption, followed by purchased renewable energy (solar power), which accounts for approximately 42.03% of total energy consumption. Going forward, the Company will continue to increase the proportion of renewable energy used and gradually optimize its energy mix.
In 2025, Sunon's total energy consumption was 175,762 GJ, representing an increase from the previous year, mainly due to expanded operations and continued growth in production capacity. Nevertheless, under the continued implementation of energy management and energy-saving measures, energy efficiency has continued to improve. This year, energy intensity was 9.410 GJ per NT$ million of revenue, a decrease of approximately 8.1% from the previous year, showing a year-on-year improvement trend and demonstrating that the Company has continued to enhance energy efficiency alongside business growth.
Energy Consumption in Recent Years
Note 1: The main sites using renewable electricity are the Kunshan Guangxing Plant, Beihai Sunon Plant, and Beihai Lizhun Plant, and all renewable electricity used is solar power.
Note 2: Energy consumption at each operating site is calculated using the calorific values announced by the respective local governments.
Note 3: Energy consumption (GJ) = energy use × unit calorific value × 4.187 / 1,000,000.
Note 4: As energy measurement units differ, all proportions are calculated based on gigajoules (GJ).
Note 5: As most of the Company's sites are manufacturing plants, revenue per NT$ million is used as the denominator for energy intensity.