Greenhouse Gas Emissions & Net Zero Commitment

Since 2012, when TWM adopted the ISO14064-1 standard, GHG inventories have undergone third-party verification annually to ensure data quality. The main source of emissions is electricity (98%); the remaining sources include use of company vehicles, generators, refrigerants, fire extinguishers and septic tanks.

Net Zero & GHG reduction targets

Taiwan Mobile has set a pioneering example in the Asian telecommunications sector by officially securing international validation through the Science-Based Targets initiative (SBTi). With a commitment to "limit global warming to 1.5°C", Taiwan Mobile has established the important goal of achieving Net Zero emissions by 2050.

Furthermore, Taiwan Mobile completed target setting as early as 2019, Taiwan Mobile became the first telecommunications company in Taiwan to be certified for SBT WB2°C (well below 2°C) and pledged to achieve net-zero emissions by 2022. In August 2023, Taiwan Mobile continued to uphold international standards and further strengthened its own requirements, successfully passing the more rigorous SBTi 2050 Net-zero review.

Under the context of "limiting global warming to within 1.5°C", Taiwan Mobile has established its short-term goals for 2030, which include a gradual phase-out of fossil fuel vehicles, improved energy efficiency, and active adoption of renewable energy sources. As a result, there has been a significant 42% decrease in greenhouse gas emissions for Scope 1 and 2 compared to the baseline year; 25% decrease in greenhouse gas emissions for Scope 3 compared to the baseline year, aligning with the 1.5°C goal of the Paris Agreement.

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Target	Overall Net-Zero	Near-Term			Long-Term
Target	Target Year	Base year	Target Year	% Reduction	Base year	Target Year	% Reduction
Scope1 Scope2	2050	2024	2030	42	2024	2050	90
Scope3	2050	2024	2030	25	2024	2050	90

By 2050, Taiwan Mobile aims to achieve a 90% reduction in carbon emissions. In the long term, if necessary, it plans to neutralize the remaining carbon emissions through methods such as carbon offsetting and carbon capture and storage, with the expectation of achieving net-zero carbon emissions.

Greenhouse gas inventory (Scope 1)

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Direct GHG (Scope 1)	Unit	FY 2022	FY 2023	FY 2024	FY 2025	target for FY 2025
Total direct GHG emissions (Scope 1)	metric tonnes CO2 equivalents	5,331.63	6,098.48	5,591.67	4,714.77	5,200.25
Data coverage (as % of denominator)	percentage of: Revenue	100	100	100	100

Greenhouse gas inventory (Scope 2)

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IGHG (Scope 2)	Unit	FY 2022	FY 2023	FY 2024	FY 2025	target for FY 2025
Location- based	metric tonnes of CO2 equivalents	282,140.61	285,603.70	341,228.67	285,492.01	317,342.66
Data coverage (as % of denominator)	percentage of: Revenue	100	100	100	100
Market-based	metric tonnes of CO2 equivalents	282,096.83	285,523.51	341,175.81	285,434.45	317,293.50
Data coverage (as % of denominator)	percentage of: Revenue	100	100	100	100

GHG inventory (scope 3)

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IGHG (Scope 3)	Unit	FY 2022	FY 2023	FY 2024	FY 2025	target for FY 2025
Total indirect GHG emissions (Scope 3)	metric tonnes of CO2 equivalents	313,385.34	341,603.49	356,189.49	323,661.42	341,229.53

Scope 3 Category	Emissions in the reporting year (Metric tons CO2e)
1. Purchased Goods and Services	166,520.64
2. Capital Goods	58,707.78
3. Fuel-and-energy-related- activities (not included in Scope 1 or 2)	67,141.60
4. Upstream transportation and distribution	943.49
5. Waste generated in operations	796.87
6. Business travel	440.80
7. Employee commuting	2,313.86
8. Upstream leased assets	972.83
9. Downstream transportation and distribution	613.79
10. Processing of sold products	TWM belongs to the telecommunication services industry, just sells the telecommunication services, operates as the intermediate for mobile and portable devices sales; in other words, TWM does not handle or manufacture the sold products.
11. Use of sold products	16,146.46
12. End of life treatment of sold products	963.98
13. Downstream leased assets	4,752.20
14. Franchises	3,347.12
15. Investments	0
Other upstream	0
Other downstream	0

Net-Zero Transition Plan

Alignment with the Paris Agreement (1.5°C Target)

Taiwan Mobile's (TWM) net-zero transition plan is strictly aligned with the Paris Agreement's goal of limiting global warming to 1.5°C. TWM is proud to be the first telecommunications operator in Asia to have its 2050 Net-Zero targets formally approved by the Science Based Targets initiative (SBTi) under the rigorous 1.5°C mitigation pathway. To drive this transition, we commit to reducing absolute Scope 1 and Scope 2 GHG emissions by 42% by 2030 (using 2024 as the baseline) and achieving 100% renewable energy (RE100) by 2040.

Planned Key Decarbonization Levers & Timelines (Next 5 Years & Beyond):

Scope 1 & Fleet Electrification (EV100): Phased vehicle fleet transition targeting 100% electric vehicles by 2030 (EV100).
Scope 2 & Renewable Energy Deployment (RE100 Pathway): Having achieved 100% green power across IDC cloud data centers in 2024, TWM is progressively scaling renewable electricity adoption to reach 35% by 2030 (RE35) and 100% by 2040 (RE100).
Scope 3 & Value Chain Engagement: Driving 1.5°C science-based target setting and low-carbon circular equipment adoption across Tier-1 suppliers to meet the 15% reduction target by 2030.

Quantified target for investments or funding to implement the transition plan: To support our SBTi-approved decarbonization roadmap, Taiwan Mobile (TWM) fully integrates climate transition funding into our annual financial budgeting:

2025 Actual Investment (Current Performance): During the reporting year, TWM invested a total of NTD 774,337,746 in mitigation, comprising NTD 773,992,653 for renewable electricity procurement (CPPA) and NTD 345,093 for Renewable Energy Certificates (RECs) acquisition to steadily scale up our green power usage.

Long-term Investment Planning (Mid-to-Long Term Commitment): In alignment with our commitment to achieve 100% renewable energy (RE100) by 2040, TWM expects to invest approximately NTD 10 billion in renewable energy development, green power procurement, and low-carbon technology upgrades.

By utilizing our Internal Carbon Pricing (ICP) of NT$1,500/tCO2e as a strategic evaluation tool, TWM ensures that our capital allocation and operational funding deliver maximum carbon reduction efficiency, leading our value chain toward a sustainable, net-zero future.

Engagement with stakeholders to gather input and support the achievement of the transition plan

Taiwan Mobile deeply integrates stakeholder perspectives into our Net-Zero Transition Plan through regular engagement, cross-sector partnerships, and multi-stakeholder initiatives:

Cross-Sector Value Chain Collaboration via "Solar for Good": TWM actively mobilizes cross-industry partners and NPOs to accelerate renewable energy deployment and community support, serving as a flagship stakeholder climate engagement platform that fosters value-chain climate awareness and broadens public access to clean energy. Over 9 consecutive years (2017–2025), this initiative has raised NTD 41.45 million across 9 NPOs, generating an estimated 16.19 million kWh of green electricity over 20 years. In 2025, TWM joined forces with 13 mobile handset vendors, momo, and 6 corporate partners to raise NTD 4.5 million for the Syin-Lu Social Welfare Foundation, installing 189 rooftop solar panels to provide 20 years of stable green power revenue while expanding distributed clean energy.
Value Chain Climate Action via "Taiwan Blue Carbon Mangrove Restoration": To translate stakeholder input into verified nature-based carbon removal, TWM partnered with the Taijiang National Park, National Chung Hsing University (NCHU), and the National Science and Technology Council (NSTC) research programs. Through this robust public-private-academic collaboration, TWM mobilized 30 key suppliers to Tainan Taijiang National Park, planting 500 mangroves to foster hands-on climate capabilities across our supply network.
Alignment with Global Climate Initiatives: TWM benchmarks its decarbonization pathway against global standards through active memberships in RE100, EV100, GeSI, and SBTi (1.5°C validated), ensuring our transition strategies align with international telecommunications and net-zero benchmarks.

Assessment of social implications of the transition plan and corresponding actions

TWM has proactively assessed the potential social implications of our Net-Zero Transition Plan across key stakeholder groups—including employees, supply chain workers, local communities, and consumers. The assessment identified critical social priorities, notably the need for internal workforce capability upgrading, supplier climate transition readiness, coastal community livelihood security, and public climate literacy. In response to these assessment outcomes and to advance a Just Transition, TWM implements targeted actions through initiatives such as the "Taiwan Blue Carbon Project," integrating climate mitigation with socio-economic resilience:

Carbon Sinks & Livelihoods: We transformed idle, high-emission fish ponds in Taijiang National Park into mangrove wetlands using a global-first "eco-friendly co-farming" model. This restored local biodiversity and generated a verified 102 tonnes of CO2 carbon sink while securing coastal livelihoods.
Employee Skills & Just Transition Capacity Building: To empower internal workforce capabilities for the climate transition, TWM conducted specialized blue carbon training led by project head Prof. Hsing-Juh Lin (engaging 80 employees) and mobilized 50 TWM employee volunteers to plant 1,200 Lumnitzera racemosa saplings with researchers.
Supply Chain Mobilization: TWM mobilized 30 key suppliers to plant 500 mangroves, driving active value-chain climate collaboration.
Coastal Community & Youth Empowerment: Our "Blue Carbon Educational Advocacy Initiative" targets Tainan's coastal areas by delivering hands-on climate education to local students and conducting guided tour training for community volunteers. This equips residents as professional ecological guides, creating sustainable, community-led local value.

Internal Carbon Pricing

Taiwan Mobile has set an internal carbon price (ICP) of US$50 (NT$1,500) per tonne of CO2e.

This price is based on Article 56 of the Climate Change Response Act, using the statutory maximum of NT$1,500 as our company's benchmark.

This ICP is integrated into capital investment decisions to help us understand the potential carbon costs of energy equipment procurement, thereby accelerating low-carbon investments.

Practical Applications:

Renewable Energy Procurement: While the initial investment cost for renewable energy is relatively high, incorporating the ICP into our financial calculations results in a shorter payback period.
Energy-Efficient Equipment Procurement: Similarly, for more energy-efficient equipment, which often has a higher upfront investment, the inclusion of the ICP significantly shortens its payback period.

This approach effectively promotes Taiwan Mobile's commitment to expanding its procurement of renewable energy and more energy-efficient equipment, thereby helping us achieve our climate-related goals.

Objectives to implement a carbon price	■ Conduct cost-benefit analysis ■ Drive energy efficiency ■ Drive low-carbon investment ■ Incentivize consideration of climate-related issues in decision making ■ Incentivize consideration of climate-related issues in risk assessment ■ Identify and seize low-carbon opportunities ■ Influence strategy and/or financial planning ■ Navigate regulations ■ Reduce upstream value chain emissions ■ Setting and/or achieving of climate-related policies and targets ■ Stress test investments	■ Publicly available
GHG Scopes covered	■ Scope 1 ■ Scope 2	■ Publicly available
Type of internal carbon price	■ Shadow price	■ Publicly available
Price (per metric tonne CO2e)	Currency: 1,500TWD - New Taiwan Dollar	■ Publicly available
Application	■ Some business decision- making process	■ Publicly available