Energy and Resource Management Performance
Energy and Resource Conservation
Operational Headquarters
The main sources of carbon emissions from ECOVE's operational headquarters are oce electricity consumption and fuel consumption of company vehicles. The headquarters office building is a Diamond-class intelligent building. Carbon reduction is carried out through energy-saving promotion, adjusting the air-conditioning temperature of the computer room, reducing the amount of lighting in ineective lighting areas, and adjusting the intelligent energy-saving time slots. With 2022 as the base year for carbon emissions from the operating headquarters, the plan is to achieve net-zero carbon emissions from the headquarters by 2030, with a short-term target of a 20% reduction in Scope 1 and Scope 2 carbon emissions by 2024, and a mid-term target of a 40% reduction by 2026.
In 2025, total headquarters electricity consumption was approximately 211,600 kWh, with an EUI of 86.85 kWh/m and emissions intensity of 0.5 metric tons CO2e/person. The reduction in electricity consumption was primarily due to seat reconfiguration and the use of green electricity.
Currently, ECOVE's company vehicles have fully adopted hybrid vehicles, and there are plans to gradually replace them with electric vehicles to reduce carbon emissions and pollution. In 2025, 78,000 kWh of green electricity was utilized, achieving above 30% reduction in overall greenhouse gas emissions compared to the base year. It is anticipated that by 2026, the use of green electricity will be increased to 40% of total electricity consumption, and by 2030, the headquarters will fully utilize green electricity. In addition, ECOVE also responds to the government's green oce initiatives by implementing five major indicators and 35 measures, including energy resource conservation, waste reduction at the source, green procurement, environmental greening, and advocacy and promotion. ECOVE has adopted 30 of these measures, demonstrating its commitment to making a positive impact on the environment.
Waste Collection and Transportation
ECOVE WMC focuses on waste clearance and management, with main energy consumption coming from fuel for clearance vehicles and electricity used at engineering oces. To further reduce carbon emissions, ECOVE WMC has established short-, medium-, and long-term carbon reduction plans, with 2022 as the baseline year, targeting a 15% reduction in emissions intensity (metric tons CO2e per 500,000 km) by 2026, a 30% reduction by 2030, and net zero emissions by 2050. Short-term measures include optimizing delivery routes, deploying environmentally friendly vehicles, and implementing a paperless dispatch system, we can further reduce pollution and resource consumption. Since 2022, newly purchased clearance vehicles have been primarily Stage 6 environmentally friendly vehicles. In 2025, the average fuel consumption reached 142.7 kiloliters per 500,000 kilometers, a decrease of approximately 15% compared to the base year of 2022. The carbon dioxide emission intensity (total carbon emissions in Scope 1 and Scope 2) was 397.116 metric tons CO2e, a decrease of approximately 12.6%.
Waste Incineration
ECOVE continues to follow the Group's green technology developments, deploying 13 energysaving and energy-eciency improvement initiatives across the Energy and Resources Centers under operational management in 2025. Of these, 7 were energy-saving improvements, 5 were process improvements, and 1 was a renewable energy installation (self-generation and self-consumption). As a result of these energy-saving measures, a total of 3,892 metric tons of carbon dioxide equivalent were reduced in 2025.
Recycling and Reuse
ECOVE SRC focuses on concentrating and purifying waste solvents into industrial- or electronicgrade raw materials, achieving circular economy, low-carbon production, and carbon neutrality goals while providing professional chemical waste solvent solutions. The main energy consumption comes from natural gas required for the concentration process and process electricity. To further reduce carbon emissions, ECOVE SRC has established short-, medium-, and long-term carbon reduction plans, using 2022 as the base year. The targets are to reduce emission intensity (kg CO2e/thousand New Taiwan Dollars) by 15% by 2026, by 30% by 2030, and to achieve net-zero emissions by 2050. Short-term measures focus primarily on replacing equipment with energy-ecient models and switching to low-carbon energy sources. In 2025, emissions intensity was 12.39 kg CO2e/thousand New Taiwan Dollars. This is an increase of approximately 2.63% from the baseline year, primarily due to changes in the properties of inbound solutions. Going forward, plans are in place to replace high-carbon-emission equipment or increase green electricity procurement to meet carbon reduction targets.
Renewable Energy
ECOVE solar power's main energy consumption is system electricity. Its short-, medium-, and long-term carbon reduction plans use 2022 as the base year. The targets are to reduce emission intensity by 15% (CO2e/thousand New Taiwan Dollars) by 2026, a 30% reduction by 2030, and net zero emissions by 2050. Short-term measures focus on increasing the proportion of selfgeneration and self-consumption and improving the eciency of generation modules, with any shortfall met through the purchase of green electricity certificates to reduce carbon emissions. In 2025, emissions intensity was 0.17 kg CO2e/thousand New Taiwan Dollars. This meets the 2026 short-term carbon reduction target.
Water Consumption
Operational Headquarters
ECOVE's headquarters building relies 100% on tap water as its water source and does not draw water from any other bodies of water. All wastewater is discharged into the sewage system. The Company uses automatic sensor faucets to reduce water consumption, and controls the water flow and discharge timing to conserve water. They have also created various watersaving slogans to remind employees to save water at all times. Rainwater harvesting systems have been installed on the rooftop of the building and at construction sites to collect rainwater for irrigation of plants or for use during construction activities.
Waste Incineration
At the 11 large Energy and Resources Centers and 2 small Energy and Resources Centers operated by ECOVE, the water withdrawal source is 100% tap water. This water is primarily used for the production of boiler feedwater or the generation of soft water for process purposes. Various types of wastewaters, including process wastewater, vehicle washing wastewater, and employee domestic wastewater, are collected and treated in the on-site wastewater treatment system to meet design standards. After treatment, the water is introduced into an internal recycling system, such as for waste gas cooling, to achieve the goal of water usage reduction. Following the renovation and upgrade of the Southern Taoyuan Energy and Resources Center to a dry acid removal system, this is expected to contribute water savings of 0.00004 million liters per metric ton of waste, achieving the water conservation target. The newly added Chiayi City Energy and Resources Center and Taitung Energy and Resources Center in 2025 have lower water withdrawal per unit of waste, which reduced the overall water withdrawal per unit of waste.
Recycling and Reuse
ECOVE SRC's operations draw water primarily for cooling systems, with 100% of the water source being tap water. Water withdrawal has increased since the original thermal oil boiler was replaced with a once-through boiler starting in June 2024.
Waste
In 2025, ECOVE's total waste generation across headquarters and operating activities was 449,489.36 metric tons, with a landfill rate of 16.18%, achieving the 2025 target of 18%. The waste reuse rate (the proportion of waste recycled, reused, and recovered for energy) was 77.64%, slightly lower than 2024, primarily because the bottom slag from the Tainan Energy and Resources Center was held at a temporary storage site designated by the plant owner pending the owner's designation of a reuse facility.
The waste characteristics of each operating activity and the planned waste reduction initiatives are described below:
Operational Headquarters
The general waste disposal method for the headquarters building is incineration. Recycling management is implemented for paper, metal, plastic, and food waste. Through recycling management, reduction of general waste is made possible. Starting in 2024, the management of recycling for paper containers (including lunch boxes, beverage cups, etc.) was further enhanced.
Waste Incineration
The main waste at waste Energy and Resources Centers is the ash residue generated after waste incineration, including bottom slag and fly ash. The bottom slag is sampled and tested in accordance with the regulations to confirm compliance with the bottom slag reuse management method, and then transported to the bottom slag reuse site or temporary plant, with an average reuse rate of 92.22% in 2025, lower than in 2024 because the Tainan plant's Environmental Protection Bureau was unable to complete contracting with a bottom slag reuse facility in time, leading to temporary storage of bottom slag at landfill sites. Fly ash is stabilized and then packaged in bags, or sent to the melting and reuse and washing for reuse, and the stabilized material is sampled and tested before being sent to qualified landfill sites for sanitary landfill, so that no methane fugitive emissions will occur during the landfill process. ECOVE continues to collaborate with reuse facilities to increase the fly ash reuse rate, reduce reliance on landfill, and establish management targets.
In 2025, the fly ash reuse rate increased to 30.97%. Taiwan's current large-scale waste incineration plants do not receive hazardous waste, and the fly ash stabilizers, following laboratory testing, are considered to be general utility waste according to the hazardous waste identification standards, and is required by law and contract to be tested at the frequency required by the standards before final landfill disposal. Legal landfills must be equipped with an impermeable layer to isolate the natural body of water and an independent wastewater collection and treatment system, and there has not been any need to assist in the improvement of the landfill for substances released.
Recycling and Reuse
The main waste at wastewater plants are sludge and waste liquids. Sludge is processed by reuse contractors and can be used as a blending material for controlled low strength materials (CLSM). Waste liquids are treated by incineration or solidification.
Solar Power
Solar panels mainly consist of modules, brackets, inverters, junction boxes, cables, and other electrical equipment. According to the "Regulations on the Installation and Management of Renewable Energy Power Generation Equipment," Article 17 states that solar panel installers are required to pay module recycling fees. These fees are collected by the Ministry of Environment to establish a module recycling mechanism for proper management of retired photovoltaic modules. ECOVE complies with the relevant regulations regarding the disposal of retired photovoltaic modules. The current disposal method involves centralized storage of retired solar panels and registering their serial numbers for module material tracking. When the recycling quantity specified by the Ministry of Environment is reached, waste solar panel transportation companies are commissioned to handle the disposal in accordance with regulations, ensuring that the recycling of discarded modules is compliant and environmentally friendly.
Pollution Control
Waste Incineration
In order to eectively control the emission of air pollutants, ECOVE Environment Service Corp. has set up a continuous emission monitoring system (CEMS) to monitor seven items, including exhaust gas flow rate, oxygen content, sulfur oxides (SOx), nitrogen oxides (NOx), hydrogen chloride (HCl), carbon monoxide (CO), and opacity, which are continuously monitored 24 hours a day and uploaded real-time to the website of the Ministry of Environment1 to ensure transparency. Currently, the monitoring data of the 11 large incineration plants and two small-scale incineration plants operated by ECOVE Environment Service Corp. can queried through an online system.
In addition, regular on-site inspections are conducted on a monthly or quarterly basis to assess various parameters including sulfur oxides, nitrogen oxides, particulate matter, heavy metals, and dioxins to ensure that emissions comply with environmental regulations. The Ministry of Environment imposes air pollution fees on fixed sources of pollution, including sulfur oxides, nitrogen oxides, volatile organic compounds (VOCs), particulate matter, heavy metals, and dioxins. Among these, nitrogen oxides (NOx) have higher emission levels and are classified as key performance indicators (KPIs) for management. Using 2022 as the baseline, ECOVE Environment Services Corp.'s nitrogen oxide emissions intensity was 0.93 kg per metric ton of waste, which was reduced to 0.80 kg per metric ton of waste in 2025 through optimization of the SNCR system, conversion to catalytic filter bags, and the addition of SCR systems. Going forward, application at additional plants will be evaluated to continue improving air quality and implement environmental sustainability targets.
Note: https://swims.moenv.gov.tw/
Reuse
ECOVE SRC continues to strengthen environmental management practices. The Company has established an environmental management system in compliance with ISO 14001, conducts regular monitoring of emission stacks, and has converted its original boiler fuel from heavy oil to natural gas to effectively reduce air pollutant emissions. After converting the electric heating boiler to a natural gas boiler, although nitrogen oxide and particulate matter emissions
increased, the natural gas boiler has higher energy conversion eciency and can substantially reduce carbon dioxide emissions.
Wastewater treatment/waste water reclamation plant laboratory provides accurate water quality data, but it requires a longer analysis time, making it dicult to reflect changes in water quality in realtime. To improve real-time monitoring capability, the plant is equipped with an automatic continuous monitoring system. This system utilizes automated analyzers to provide rapid but less precise water quality data; however, it makes real-time data of discharged water quality trends readily available and enables operational units to quickly respond and adapt to the trends in discharged water quality. It also serves as a reference for regulatory authorities and the general public.
Through water quality analysis and automated continuous monitoring, in 2025, 100% of the wastewater discharges from all wastewater plants complied with the standards for discharges or industrial zones, ensuring that water quality complies with regulatory requirements and maintaining environmental safety. The Linkou Water Resources Plant, New Taipei City Gravel Water Treatment Plant, Zhonggang Water Resource Center, and the South Taiwan Science Park Water Reclamation Plant all met the effluent standards for BOD and SS.
