環境保護Environmental Protection

水資源管理Water Resources Management

為因應氣候變遷與水資源日趨匱乏之狀況，台星科所有廠區逐年增加製程用水及設備用水之回收水量來取代用水需求，以達節約用水及保護水資源之目的，減少對自然環境之衝擊。In response to climate change and increasing water scarcity, all WINSTEK facilities have progressively increased the recycled water volume for process and equipment water to replace fresh water demand, achieving water conservation and protection while reducing environmental impact.

為提升水資源使用效率並降低用水對環境的潛在衝擊，台星科所有廠區依循四大節水方針——「製程減量用水」、「降低廢水排量」、「提昇系統回收率」、「節約生活用水」，積極推動水資源管理。持續提升設備的回收水量及降低製程用水量，逐步減少工廠用水需求，實現源頭減量與循環再利用的雙重目標，並持續尋求節水新契機，落實「開源節流」策略，推動環境永續，節水執行措施如下：To improve water use efficiency and reduce the potential environmental impact of water consumption, all WINSTEK facilities actively pursue water resources management under four key principles — "reducing process water use," "lowering wastewater discharge," "improving system recovery rate," and "conserving domestic water use." We continue to increase equipment water recovery and reduce process water consumption, progressively lowering factory water demand to achieve both source reduction and recycling. We continue to pursue new water-saving opportunities, implementing an "open source, reduce waste" strategy to advance environmental sustainability. Our water-saving measures are as follows:

在節水措施的推動下，每年持續改善製程及設備，整體用水管理穩定優化。未來將持續改善設備用水與提升製程用水回收率，以達逐年降低取水密集度之目標，朝向更高效的資源使用邁進。Through these water-saving measures, we continue to improve processes and equipment annually, steadily optimizing overall water management. Going forward, we will continue improving equipment water use and process water recovery rates to achieve year-over-year reductions in water withdrawal intensity, moving toward more efficient resource use.

1. 取水密集度＝取水量／合併營收（百萬元）Water Withdrawal Intensity = Water Withdrawal / Consolidated Revenue (NT$ million)
2. 取水密集度減量基準年：2024年（自2025年起推動降低取水密集度之目標，故將2024年訂定為減量基準年，作為後續績效評估之依據）Water Withdrawal Intensity Reduction Baseline Year: 2024 (as the company began pursuing its water withdrawal intensity reduction target in 2025, 2024 was set as the baseline year for subsequent performance evaluation)
3. 取水密集度下降目標：設定2025年下降1%，逐年下降0.5%，至2029年預計下降3%（與減量基準年相比）Water Withdrawal Intensity Reduction Target: 1% reduction in 2025, 0.5% annual reduction thereafter, targeting a cumulative 3% reduction by 2029 (compared to baseline year)

廢水管理Wastewater Management

為了確保放流水量及水質均符合法規標準，主要控管機制包括自動控制保護措施、即時監控系統、監視系統及人員稽核，並定期維護廢水處理設備、分析和監控放流水，以強化廢水管理效能，亦針對製程化學品進行嚴格監控及審核，確保源頭風險可控。To ensure both effluent volume and quality meet regulatory standards, key control mechanisms include automatic control safeguards, real-time monitoring systems, surveillance systems, and personnel audits. We regularly maintain wastewater treatment equipment and analyze and monitor effluent to strengthen wastewater management, while strictly monitoring and reviewing process chemicals to keep source risks under control.

台星科訂定優於法規的廠內控管標準，並持續關注及落實國內環保法規之要求，掌握環境政策及趨勢。廢水依法規定每季委託合格檢測機構執行採樣與分析，並定期完成申報，2025 年放流水均符合法規排放標準，顯示台星科有效控管污染風險，未對周邊環境造成衝擊。WINSTEK has established internal control standards that exceed regulatory requirements, and continuously monitors and implements domestic environmental regulations to stay abreast of environmental policies and trends. Wastewater sampling and analysis is conducted quarterly by certified testing agencies as required by law, with regular regulatory filings. In 2025, all effluent met regulatory discharge standards, demonstrating effective pollution risk control with no impact on the surrounding environment.

溫室氣體盤查GHG Inventory

台星科所有廠區透過溫室氣體盤查及採取節能措施做為管理方向，以達成溫室氣體減量目標，降低營運對環境造成之衝擊。公司依據ISO 14064-1:2018標準進行溫室氣體盤查，並通過第三方驗證機構查證，確保數據透明與可信。All WINSTEK facilities pursue greenhouse gas (GHG) inventories and energy-saving measures as core management directions to achieve GHG reduction targets and minimize operational environmental impact. The company conducts GHG inventories in accordance with ISO 14064-1:2018 and undergoes third-party verification to ensure data transparency and credibility.

2025年度溫室氣體盤查結果如下：The 2025 GHG inventory results are as follows:

1. 直接溫室氣體排放（範疇1）：包含固定式設備（如發電機）、製程排放、交通運輸之移動燃燒源（公務車、堆高機）、逸散排放，約占總排放量5.87%。Direct GHG emissions (Scope 1): including stationary sources (e.g., generators), process emissions, mobile combustion sources (company vehicles, forklifts), and fugitive emissions — approximately 5.87% of total emissions.
2. 能源間接溫室氣體排放（範疇2）：主要排放源為外購電力，約占總排放量38.66%。Energy indirect GHG emissions (Scope 2): primarily from purchased electricity — approximately 38.66% of total emissions.
3. 其他間接溫室氣體排放（範疇3）：包括購買的商品和服務、資本材、燃料和能源相關的活動、營運活動中產生的廢棄物，約佔總排放量55.47%。Other indirect GHG emissions (Scope 3): including purchased goods and services, capital goods, fuel- and energy-related activities, and waste generated in operations — approximately 55.47% of total emissions.
4. 台星科已於2025.02.26、2025.05.02、2025.07.28及2025.10.27每季向董事會報告溫室氣體盤查查證進度。WINSTEK reported GHG inventory and verification progress to the Board of Directors quarterly on 2025/02/26, 2025/05/02, 2025/07/28, and 2025/10/27.

註：Notes:

1. 全球暖化潛勢（GWP）：引用聯合國政府間氣候變遷專門委員會（IPCC）2021年第六次公告（IPCC AR6）Global Warming Potential (GWP): based on the IPCC Sixth Assessment Report (AR6), 2021
2. 2025年電力排碳係數：0.466 kg CO₂e／度（資料來源：經濟部能源署）2025 electricity emission factor: 0.466 kg CO₂e/kWh (Source: Energy Administration, MOEA)
3. 2025年全氟氣體排放量：3,635.87公噸CO₂e2025 perfluorinated gas emissions: 3,635.87 metric tons CO₂e
4. 溫室氣體排放強度＝（範疇1+範疇2）／合併營收（百萬元）GHG Emission Intensity = (Scope 1 + Scope 2) / Consolidated Revenue (NT$ million)

空氣污染防制Air Pollution Control

台星科所有廠區產生的空氣污染物質主要為積體電路製造程序產生的廢酸氣、廢鹼氣及揮發性有機化合物（VOCs）、氮氧化物（NO_x）、硫氧化物（SO_x）、粒狀污染物（Par.）。廢酸氣、廢鹼氣主要透過洗滌塔設備處理；揮發性有機化合物（VOCs）藉由流體化床、沸石轉輪及直燃式焚化爐、吸附塔（備用）設備進行處理；氮氧化物（NO_x）、硫氧化物（SO_x）、粒狀污染物（Par.）藉由沸石轉輪及直燃式焚化設備進行處理。為追蹤及控管廠內空氣污染物排放情形，除了裝設相關防制設備之外，建置防護與管理機制，包括連續監控系統、人員巡檢與稽核、設備定期保養、嚴格審核與控管製程化學品，每年委託第三方機構針對廠區內排放口進行氣體檢測，並持續編列廢氣處理相關預算，以維護環境之品質，確保產生之空氣污染物皆符合或優於政府法規規定。Air pollutants generated at WINSTEK facilities primarily consist of waste acid gas, waste alkaline gas, and volatile organic compounds (VOCs), nitrogen oxides (NO_x), sulfur oxides (SO_x), and particulate matter (Par.) from IC manufacturing processes. Waste acid and alkaline gases are treated primarily via scrubber systems; VOCs are treated using fluidized bed, zeolite rotor, thermal oxidizer (TO), and adsorption tower (backup) equipment; NO_x, SO_x, and particulate matter are treated via zeolite rotor and thermal oxidizer equipment. To track and control on-site air pollutant emissions, in addition to installing relevant control equipment, we have established protection and management mechanisms including continuous monitoring systems, personnel inspections and audits, regular equipment maintenance, and strict review and control of process chemicals. We commission third-party agencies annually to test emissions at facility outlets, and continuously budget for exhaust gas treatment to maintain environmental quality, ensuring all air pollutants meet or exceed government regulatory requirements.

沸石轉輪＋直燃式焚化爐（TO）Zeolite Rotor + Thermal Oxidizer (TO)

活性碳吸附塔Activated Carbon Adsorption Tower

流體化床Fluidized Bed

洗滌塔（酸排）Scrubber (Acid Exhaust)

洗滌塔（鹼排）Scrubber (Alkaline Exhaust)

廢棄物管理Waste Management

台星科依產品生命週期之環境思維，對事業廢棄物的分類、收集、貯存、處理等程序進行規範。期望在產能持續提升的同時，透過管理措施，有效管理廢棄物、改善環境衛生，避免廢棄物產出量同比例增加而造成潛在的環境風險。廠內廢棄物100%委託合格廠商妥善清除與處理，並持續進行定期稽核與管理，以確保處理流程之合規性與管理措施之有效性。Based on product lifecycle environmental thinking, WINSTEK regulates the classification, collection, storage, and treatment procedures for industrial waste. As production capacity continues to grow, we aim to effectively manage waste and improve environmental sanitation through management measures, avoiding proportional increases in waste generation that could create potential environmental risks. 100% of on-site waste is properly removed and treated by certified vendors, with ongoing periodic audits and management to ensure process compliance and management effectiveness.

訂定廢棄物回收率目標為≥90%，廢棄物回收種類包含資源廢棄物（紙、塑膠、鐵鋁罐）、有害廢棄物（化學廢液、污泥、空桶）、電子下腳料、燈管、生活垃圾等。We have set a waste recycling rate target of ≥90%. Recycled waste categories include resource waste (paper, plastic, aluminum/steel cans), hazardous waste (chemical waste liquid, sludge, empty containers), electronic scrap, light tubes, and general waste.

2025年廢棄物產出總量為1,577.57公噸，近五年廢棄物總量持續下降，2025年整體回收率達97.8%，較前一年提升2.1%，其中，循環經濟型廢棄物量達150.14公噸，占總廢棄物比重9.52%，較前一年提升2.4%。為提升廢棄物回收率，我們積極與非焚化或固化的處理機構媒合，減輕環境負擔。Total waste generated in 2025 was 1,577.57 metric tons. Total waste volume has continued to decline over the past five years, with an overall 2025 recycling rate of 97.8%, up 2.1% year-over-year. Circular economy waste reached 150.14 metric tons, accounting for 9.52% of total waste, up 2.4% year-over-year. To improve the recycling rate, we actively partner with treatment facilities that avoid incineration or solidification, reducing environmental burden.

節能減碳目標Energy Saving & Carbon Reduction Targets

註：溫室氣體排放強度＝公噸CO₂e／合併營收（百萬元）（指範疇一及範疇二，基準年為2024年）Note: GHG Emission Intensity = metric tons CO₂e / Consolidated Revenue (NT$ million) (Scope 1 & 2, baseline year 2024)

註：以芎林廠2026年未採行任何減碳措施之範疇1及範疇2排放量作為基準情境，設定於2026年至2030年間逐步推動減碳措施，並於2030年達成減少 3,914.098公噸CO₂e 之目標。Note: Using the Scope 1 and Scope 2 emissions of the Qionglin Plant in 2026 without any carbon-reduction measures as the baseline scenario, carbon-reduction measures will be progressively implemented from 2026 to 2030, with the goal of reducing emissions by 3,914.098 metric tons CO₂e by 2030.

為響應全球減碳趨勢及政府2050淨零排放政策，台星科積極推動節能與再生能源專案，期望有效控制碳排放量，有鑑於台星科整體碳足跡以外購電力為主，故採取「綠電採購」與「建置太陽能發電設施」雙軌並進的策略，逐步提升再生能源使用比例，減少對外購電力的依賴，強化能源韌性，逐步建構綠能導向的電力結構，並響應政府能源轉型與淨零路徑。In response to global decarbonization trends and the government's 2050 net-zero policy, WINSTEK actively pursues energy-saving and renewable energy projects to effectively control carbon emissions. Given that purchased electricity accounts for the majority of our carbon footprint, we adopt a dual-track strategy of "green electricity procurement" and "solar power installation," progressively increasing our renewable energy usage ratio, reducing dependence on purchased electricity, strengthening energy resilience, and building a green-oriented power structure in step with the government's energy transition and net-zero pathway.

每年規劃具體節電改善措施，如更換節能設備、設備節能及製程優化等方式，以逐步降低溫室氣體排放和對環境帶來之衝擊，並強化營運過程中的環境友善作為。2025 年節電目標為年度專案節電率1%，當年度共執行8 項節電措施，節省用電量約1,506,972kWh，實際專案節電率達2.29%；年減碳量約702 公噸CO₂e，相當於約1.84 座大安森林公園一年的二氧化碳吸附量。We plan specific power-saving improvement measures every year, such as replacing equipment with energy-efficient models, equipment energy savings and process optimization, to progressively reduce GHG emissions and environmental impact while strengthening environmentally friendly operations. The 2025 power-saving target was an annual project power-saving rate of 1%; that year, 8 power-saving measures were implemented, saving approximately 1,506,972 kWh and achieving an actual project power-saving rate of 2.29%, with annual carbon reduction of approximately 702 metric tons CO₂e — equivalent to the annual CO₂ absorption of about 1.84 Daan Forest Parks.

註：Notes:

1. 一座大安森林公園每年的二氧化碳吸附量約為389公噸（資料來源：經濟部能源署）Annual CO₂ absorption of one Daan Forest Park is approximately 389 metric tons (Source: Energy Administration, MOEA)
2. 2025年電力排碳係數為0.466 kg CO₂e／度（資料來源：經濟部能源署）2025 electricity emission factor: 0.466 kg CO₂e/kWh (Source: Energy Administration, MOEA)

持續推動員工節能減碳宣導，並落實多項日常節能措施，涵蓋照明、空調、辦公設備及會議空間等面向，打造節能高效的辦公環境。We continuously promote employee energy-saving and carbon reduction awareness, implementing daily energy-saving measures across lighting, air conditioning, office equipment, and meeting spaces to create an energy-efficient office environment.

以廢棄物資源化為核心策略，依據相容性及屬性進行分類，委由合格清除及處理廠商，將廢棄物進行回收再利用，以達成資源減量及再利用之目標。With waste resource recovery as our core strategy, waste is classified by compatibility and properties and handled by certified removal and treatment vendors for recycling and reuse, achieving our goals of resource reduction and reuse.

氣候變遷Climate Change

隨著聯合國通過《巴黎協定》，氣候變遷成為全球政府與企業高度關注的關鍵議題，台星科審視氣候變遷對於經濟活動、社會穩定及企業營運可能帶來之衝擊，評估產品生命週期中之環境風險，規劃應變策略，期減緩氣候衝擊及其外部成本，提升營運韌性。Following the United Nations' adoption of the Paris Agreement, climate change has become a key focus for governments and businesses worldwide. WINSTEK examines the potential impacts of climate change on economic activity, social stability, and business operations, assesses environmental risks throughout the product lifecycle, and plans response strategies to mitigate climate impacts and their external costs while strengthening operational resilience.

本公司已從風險識別、制度建置到設施調適，逐步強化氣候風險管理機制與因應能力。以下分別說明對氣候變遷風險之管理策略，以及針對極端氣候事件所採行之調適措施。The company has progressively strengthened its climate risk management mechanisms and response capabilities — from risk identification and system development to facility adaptation. Below are our management strategies for climate change risks, along with adaptation measures adopted for extreme weather events.

環境管理制度Environmental Management System

為守護自然環境與健康的生活品質，台星科持續強化污染預防與風險控管，並落實以下環境治理作為：To protect the natural environment and quality of life, WINSTEK continuously strengthens pollution prevention and risk control, implementing the following environmental governance practices:

環保支出與投資Environmental Expenditure & Investment

台星科秉持環境永續理念，積極推動減廢、節能與資源循環等措施，致力於降低原生資源使用量，強化綠色循環經濟的實踐。隨著環保意識高漲與法規標準日趨嚴格，台星科持續強化環境管理作為，確保廢水處理、空氣污染防制及廢棄物清運作業均符合國內排放標準與法規規範。公司每年編列環保預算，主要用於改善及提升污水處理、空氣污染防制及廢棄物處理及相關監測管理，以提升整體環境績效。自2000年成立以來，已投入數億元購置污染防治設備及汰換老舊設備，並導入節能效果佳之設備，展現公司對污染防治與節能減碳的長期承諾，以及對環境管理的高度重視與持續投入。Upholding environmental sustainability principles, WINSTEK actively promotes waste reduction, energy conservation, and resource recycling to reduce the use of virgin resources and strengthen green circular economy practices. As environmental awareness rises and regulatory standards tighten, WINSTEK continues to strengthen its environmental management, ensuring wastewater treatment, air pollution control, and waste disposal all comply with domestic emission standards and regulations. The company allocates an annual environmental budget primarily for improving and upgrading wastewater treatment, air pollution control, waste treatment, and related monitoring management to enhance overall environmental performance. Since our founding in 2000, we have invested hundreds of millions of NT dollars in pollution control equipment, equipment replacement, and energy-efficient upgrades, demonstrating our long-term commitment to pollution prevention, energy conservation, and carbon reduction, and our sustained emphasis on environmental management.