Water Resources and Pollution Prevention Management

Water Withdrawal Intensity Reduction Water Withdrawal / Production Volume (Taiwan Sites)

2025

Reduction10.5%

2030

Reduction20%

(Compared to 2024 Base Year)

TA-I Technology adopted the World Resources Institute (WRI) Aqueduct water risk assessment tool to conduct simulations on "water resource stress and depletion" and "river/coastal flooding" for its four major plant areas in Changxing and Nanshan, Taiwan, and Suzhou and Dongguan, China. The results are shown in the table below:

Assessment Item	Changxing	Nanshan	Suzhou	Dongguan
Water Stress	Low	Low	Extremely High (>80%)	Low
Water Depletion	Low	Low	Low	Low
Riverine Flood	Low	Low	High	Medium-High
Coastal Flood	Low	Medium-High	Low	Medium-High

Water Stress

Changxing: Low
Nanshan: Low
Suzhou: Extremely High (>80%)
Dongguan: Low

Water Depletion

Changxing: Low
Nanshan: Low
Suzhou: Low
Dongguan: Low

Riverine Flood

Changxing: Low
Nanshan: Low
Suzhou: High
Dongguan: Medium-High

Coastal Flood

Changxing: Low
Nanshan: Medium-High
Suzhou: Low
Dongguan: Medium-High

Taiwan Nanshan Plant

Coastal flood Medium-high

Hazard Indicator: 7 in 100,000 to 3 in 10,000. Coastal flood risks increase with climate change, sea level rise and extreme typhoon storm surges.

China Suzhou Plant

Extremely High Water Stress

Hazard Indicator: Above 80% (Taihu Basin). Suzhou's water use is very low (24.69 million liters in 2025), so restrictions have limited production and financial impacts.

China Suzhou Plant – WRI Aqueduct riverine flood risk map

Riverine flood High

Hazard Indicator: 6 in 1,000 to 1 in 100. Extreme rainfall and seasonal storms raise the probability of river and Taihu water system overflow and damaging floods.

China Dongguan Plant

Riverine flood Medium-high

Hazard Indicator: 2 in 1,000 to 6 in 1,000. Extreme rainfall raises the probability of nearby river overflow and damaging floods.

China Dongguan Plant – WRI Aqueduct coastal flood risk map

Coastal flood Medium-high

Hazard Indicator: 7 in 100,000 to 3 in 10,000. Geographic exposure to climate change, sea level rise and extreme typhoon surges creates coastal flood threats.

In 2025, total water withdrawal reached 386.886 million liters. Benefiting from process water conservation and recycling initiatives, water withdrawal intensity significantly decreased to 0.0017 million liters/million units (a cumulative 3-year improvement of 10.53%).

Total withdrawal

386.886 million L

Total discharge

262.352 million L

Water consumption

124.534 million L

Consumption rate

32.19 %

Plant Site	Y2023	Y2024	Y2025
Nanshan	181.662	188.628	207.291
Changxing	116.771	117.280	120.285
Suzhou	40.799	24.675	24.692
Dongguan	30.725	32.788	34.618
Total Water Withdrawal	369.957	363.371	386.886
Water Withdrawal Intensity	0.0020	0.0019	0.0017

Nanshan

Y2023: 181.662
Y2024: 188.628
Y2025: 207.291

Changxing

Y2023: 116.771
Y2024: 117.280
Y2025: 120.285

Suzhou

Y2023: 40.799
Y2024: 24.675
Y2025: 24.692

Dongguan

Y2023: 30.725
Y2024: 32.788
Y2025: 34.618

Total Water Withdrawal

Y2023: 369.957
Y2024: 363.371
Y2025: 386.886

Water Withdrawal Intensity

Y2023: 0.0020
Y2024: 0.0019
Y2025: 0.0017

Note 1: All water withdrawn is sourced from surface water.
Note 2: The water withdrawal at Changxing Plant was lower than its discharged volume for the same period. Investigation confirmed this was caused by a water meter malfunction, which was replaced in October 2025

Item (Megaliters)	Y2023	Y2024	Y2025
Total Water Withdrawal (A)	369.957	363.371	386.886
Total Water Discharge (B)	208.870	227.370	262.352
Total Water Consumption (C = A − B)	161.087	136.001	124.534
Water Consumption Rate (C / A)	43.54%	37.43%	32.19%

Total Water Withdrawal (A)

Y2023: 369.957
Y2024: 363.371
Y2025: 386.886

Total Water Discharge (B)

Y2023: 208.870
Y2024: 227.370
Y2025: 262.352

Total Water Consumption (C = A − B)

Y2023: 161.087
Y2024: 136.001
Y2025: 124.534

Water Consumption Rate (C / A)

Y2023: 43.54%
Y2024: 37.43%
Y2025: 32.19%

Ozone-Depleting Substances (ODS) Management Plan

Overseas Plant Achievements: By the end of 2025, the Dongguan and Suzhou plants completely phase out R-22 refrigerant, successfully replacing it with eco-friendly alternatives.

Taiwan Plant Planning: Existing refrigerant equipment currently totals 5 units with a combined refrigerant inventory of 21.5 kg. A full phase-out is planned before 2028 to advance toward the goal of zero ODS emissions.

Plant Site	Pollutant Category (Unit: kg)	Y2024	Y2025
Nanshan	Volatile Organic Compounds (VOC)	15,802.77	32,847.41
Nanshan	Particulate Matter	54.20	62.24
Changxing	Volatile Organic Compounds (VOC)	44,616.89	42,525.26
Changxing	Particulate Matter	50.95	59.53

Sustainable Environment