- ■ Improve the exhaust efficiency of the photoresist spraying machine by adding exhaust pipes to reduce pressure loss and adjusting the exhaust fan frequency to achieve energy savings, while adhering to regulations. ■ Improve the energy efficiency of cleanroom air conditioning by reducing pump operation and lowering electricity consumption using existing equipment. ■ Conduct third-party testing to ensure air pollution emissions comply with legal requirements, adhering to the frequencies and specifications required by each plant's license. ■ Continuously review and discuss air pollutant removal technologies to reduce the impact of pollutant and waste emissions. ■ Replacing the MAU02 system in 2024 saved 98,780.42 kWh of energy, approximately NT$405,000. ■ Adjusting the load distribution of the chilled water booster pump in 2024 saved 30,636.67 kWh of energy, approximately NT$126,000. ■ Installing inverters in the air conditioning units in 2024 saved 441,405.26 kWh, approximately NT$1,811,000. ■ Replacing old motors and adding inverters in 2024 saved 34,066.64 kWh, approximately NT$1,397,000. ■ Replacing LED tubes in 2024 saved 22,576.11 kWh, approximately NT$93,000. ■ Replacing 34 FFUs in the cleanroom saved 10,424.40 kWh. ■ Saved approximately NT$43,000 kWh after system chilled water pump consolidation and decommissioning. ■ Installed RCO catalytic regenerative oxidizer facility achieves 87% processing efficiency.
Taiwan Mask Group has maintained close communication with stakeholders and discovered their concern about energy and greenhouse gas issues, hoping to understand Taiwan Photomask's management and actions on these issues. Taiwan Mask Group hopes to promote energy conservation and carbon reduction plans, emphasize pollution prevention, safeguard the quality of life for all, mitigate the environmental impact of its operations, and create economic and social value.
Energy Usage at Operational and Production Sites Primarily Relies on Purchased Electricity
Taiwan Mask Group primarily relies on purchased electricity, accounting for approximately 99% of its total energy consumption. The remaining energy comes from diesel and gasoline, mainly used in generators, official vehicles, and high-precision machinery. In 2024, Taiwan Mask Group continued to expand its production capacity by adding new equipment, resulting in a total energy consumption of 149,245.24 gigajoules (GJ) and an energy intensity of 0.00033 GJ/thousand NT dollars, a slight increase of 301.00 gigajoules (GJ) compared to 2023. In 2024, Taiwan Mask Group reduced its energy consumption due to increased production capacity through energy-saving measures such as air conditioning, adding inverters, and replacing LED tubes, while continuing to promote the concept of energy conservation.
Electricity consumption and energy saving rate from 2022 to 2024
In response to the domestic and international trend of renewable energy, Taiwan Mask Group installed solar power generation equipment with a total area of 2,677.5 m2 at its Plants 1, 2 and 6 in Taiwan at the end of 2022. In 2024, it generated a total of 457,743.91 kWh of electricity and reduced CO2 emissions by 216.97 tonnes. In the future, it will continue to evaluate the feasibility of green energy power generation and hopes to gradually increase the proportion of renewable energy used.
Taiwan Mask Group completed its 2024 ISO 14064-1:2018 greenhouse gas emission assessment certification. The group actively establishes a greenhouse gas emission assessment mechanism, regularly assessing the emissions from each plant. In 2024, Taiwan Mask Group's total greenhouse gas emissions in Categories I and II amounted to 19,743.73 tonCO2e. Indirect energy emissions from electricity use (Category II) accounted for 99% of the company's total emissions, while the remaining direct emissions (Category I), including generator diesel, process cylinders, gasoline and diesel for company vehicles, septic tanks, and refrigerant-related equipment, accounted for 1%. In 2024, the group's greenhouse gas emission intensity was 0.000044 tonCO2e/thousand NT dollars due to the commissioning of new equipment, an increase of 50% compared to the previous year. Taiwan Photomask Group will continue to formulate and implement strategies to reduce energy consumption. Note: Revenue was NT$671,199,705,000 in 2023 and NT$453,838,491,000 in 2024.
TMC's greenhouse gas emission
Note 1: Emission factors source: Referring to the Environmental Protection Administration's announced Greenhouse Gas Emission Factor Management Table 6.0.4.
Note 2: Power coefficient based on the latest release from the Energy Administration, Ministry of Economic Affairs, with a coefficient of 0.474 kgCO2e/kWh.
Note 3: Revenue was NT$671,199,705,000 in 2023 and NT$453,838,491,000 in 2024.
Greenhouse Gas Emissions of Taiwan Mask Corporation
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Taiwan Mask Group is committed to improving energy efficiency and planning the use of renewable energy to reduce greenhouse gas emissions from its operations. Through central monitoring, it continuously tracks the energy consumption of various systems, adjusting parameters, installing energy-saving inverters, and replacing outdated equipment to reduce its reliance on purchased electricity and its associated environmental impact, while supporting the company's continued growth. In 2024, the main reduction measures consisted of two main categories: installing and replacing equipment with energy-saving devices, and completing the upgrade of factory lighting, resulting in total annual energy savings of approximately 112,954 GJ and a reduction in greenhouse gas emissions of approximately 301.14 tonCO2e. Furthermore, in 2023, Taiwan Mask Group built an ecological landscape garden of over 1,000 square meters at its Zhunan plant, providing a comfortable and elegant green environment for employees to relax in. This garden absorbs approximately 2.75 metric tons of carbon annually, enriching the ecology of the technology park and demonstrating the company's emphasis on employee rest, relaxation, and healthy living.