GHG Management System

In 2008, Chunghwa Telecom took a leading role in the industry by conducting a greenhouse gas (GHG) inventory covering 100% of our operational sites. We used the Greenhouse Gas Protocol developed by the World Resources Institute (WRI) and the World Business Council for Sustainable Development (WBCSD) as the inventory tool to establish a GHG emissions inventory. We obtained a verification statement from a third-party verifier (SGS-Taiwan), becoming the first telecommunications company in Taiwan to obtain ISO 14064-1 verification.

Greenhouse Gas (GHG) Emissions

The total greenhouse gas (GHG) emissions by CHT in 2024 is 2,390,326.723 t-CO₂e, which include CO₂、CH₄、N₂O、HFCs、PFCs、SF₆、NF₃. We did not emit PFCs, SF₆, and NF₃; therefore, the values thereof are 0.

The primary energy source for CHT operation is electricity. The GHG emissions mainly fall in the Scope 2 (purchased electricity), accounting for 96.75%
The Scope 1 accounting for 3.25% only. There was a slight decrease in the total emissions of Scope 1 and Scope 2 in 2024, dropped by 20.88 % compared with 2020 levels, thanks to implementation of various energy efficiency and carbon reduction measures.
Scope 3 (Categories 3-6): 1,765,032.1202 t-CO₂e; total GHG emissions of Scope 1, 2, and 3 (Categories 1-6): 2,390,326.723 t-CO₂e

Scope 1 and 2 Emissions

	2020	2021	2022	2023	2024
Direct Emissions （Scope 1）（t-CO₂e）	22,192.9316	17,887.4700	19,185.3151	18,874.8892	20,315.1166
Indirect Emissions（Scope 2）（t-CO₂e）	768,128.0670	716,979.2586	694,912.7210	645,490.6474	604,979.4866
Total Emissions（Scope 1 + Scope ）（t-CO₂e）	790,320.9986	734,866.7286	714,098.0361	664,365.5366	625,294.6032
Emission Intensity（t-CO₂e/million NTD）	4.42	4.11	3.92	3.52	3.24
Coverage as percentage in revenue（%）	100	100	100	100	100

Notes：
1. An emission target of 18,686.1403metric tons was set for 2024.
2. The Scope 2 emissions in the table above are calculated using a market-based approach.
3. The increase in Scope 1 emissions in 2024 is due to multiple typhoon repairs requiring increased fuel usage and routine refrigerant replenishment. Since the primary energy used in the telecommunications industry is electricity, the majority of greenhouse gas emissions come from Scope 2 purchased electricity. Therefore, our company will focus its carbon reduction efforts on Scope 2.
4. The data coverage is 100% of the group-wide operations and group-wide revenues.

Scope 2 Emissions

Unit:t-CO₂e

	2020	2021	2022	2023	2024	Target for 2024
Location-base	768,128.0670	716,979.2586	694,912.7210	681,871.5699	639,393.9116	647,777.9914
Market-base	768,128.0670	716,979.2586	694,912.7210	645,490.6474	604,979.4866	613,216.1150

Note: The data coverage is 100% of the group-wide operations and group-wide revenues.

Scope 3 Emissions

In 2024, In line with ISO 14064-1:2018 and with reference to the GHG Protocol Corporate Value Chain (Scope 3), Chunghwa Telecom investigated the 15 GHG emissions from the related business activities in the upstream and downstream to inventory the Scope 3, 4, and 5, and the verification statement was obtained from Crowe (TW) CPAs.

Scope 3 emissions	2021	2022	2023	2024
Total Emissions( t-CO₂e )	1,913,245.9918	1,828,060.8890	1,814,662.2596	1,765,032.1202
Categories Accounted	15	15	15	15

2024 Scope 3 Emission

Operations Value Chain	Category	Description	Emissions（t-CO₂e）
Operations Value Chain	Category	Description	Upstream	3	Upstream transportation and distribution	564.2503
Downstream transportation and distribution	28.4607
Business travel	4,890.4970
Employee commuting	8,505.5712
4	Purchased goods and services	613,291.4183
	Capital goods	530,294.2852
	Fuel- and energy-related activities	128,022.5159
	Waste generated in operations	1,234.3431
	Upstream leased assets	91,946.1306
Downstream	5	Use of sold products	86,690.6697
		End-of-life treatment of sold products	688.0154
		Downstream leased assets	242,402.5078
		Processing of sold products	N／A
		Franchises	N／A
		Investments	56,473.4550

Notes:
1. This table presents the emissions of each category based on the verification statement issued by the third party.
2. In 2024, the emission target was set at 1.763 million metric tons, with a challenge target of 1.708 million metric tons, by Chunghwa Telecom.
3. In 2022, Scope 3 was expanded to include the carbon emissions of consignment products sold in stores. According to the GHG Protocol classification, the carbon emissions generated include:(1.)Purchased goods and services, (4.)Upstream transportation and distribution, (9.)Downstream transportation and distribution, (11.)Use of sold products, (12.)End-of-life treatment of sold products. From 2022 onwards, the inventory includes the carbon emissions of consignment products. The retroactive carbon emissions of consignment products for 2021 amounted to a total of 459,381.23 t-CO₂e.

Energy Saving and Carbon Reduction Plan and Results

To cope with the climate change risks and introduce more benefits from energy saving and carbon reduction, Chunghwa Telecom formulated tangible energy saving and carbon reduction action plans. In addition to active energy efficiency improvement, through autonomous environmental measures and practices, it compiles and analyzes energy data for a science-based management.

Item	Description
Energy Efficiency ImprovementM	Consolidation of IDC spaces for an effective utilization Adoption of high-efficiency and energy-saving equipment to elevate the energy efficiency of IDCs Reduction of the PUE of IDCs from 1.67 in the base year of 2020 annually to the target of a PUE of 1.50 or lower by 2030 Green building materials adopted for newly constructed IDCs or hostels Recovery systems for rainwater, groundwater, and HVAC condensate installed for water resource recycling Lighting of public areas in office buildings replaced with LED lights
Green Energy Introduction	Installation of solar photovoltaic and wind power systems, with a cumulative installed capacity of approximately 12,059.4 kWp by 2024 72,600 Taiwan Renewable Energy Certificates (T-RECs) obtained in 2024
Telecom Facility Energy-Saving Plan	Stipulation of energy efficiency specs for equipment: stipulation of energy efficiency specs for the equipment necessary for telecom services in the procurement specifications Energy-saving measures for telecom facilities: adjustment to equipment capacity as appropriate and equipment integration to reduce the overall power consumption of telecom facilities Base station energy-saving: procurement of base stations with higher energy efficiency to replace the energy-demanding counterparts Equipment replacement: Active introduction of NGN equipment to replace the old PSTN equipment and cut energy consumption
Autonomous Environmental Protection	Phase-out of old vehicles with newly procured energy efficient green vehicles; introduction of electric vehicles Assistance in establishment of YouBike Station at the Xinyi-Hangzhou intersection Clean Homeland, Energy Efficient Offices, Car-free Day, Office Document Automation System (ODAS) Energy Efficiency Service: to assist the SMEs and the vulnerable groups in energy efficiency improvement Industrial waste recycling target setting
Value-added Products & Services	First-and-only in the industry: Carbon neutral Syntrend Store with EPA Carbon Label for Services as well as certifications to ISO 14067 and PAS 2060 E-bill: promoted along with business marketing for environmental protection and carbon reduction E-invoice: invoices stored in the cloud permanently that saves materials and labor, along with tax-saving and penalty-free from the government Intelligent Energy Network Service and promotion of energy-efficient products Mobile device recycling: via the trade-in activity at the stores and recycle bins installed to the service centers in line with the promotion for waste recycling in 2024, achieving a reuse percentage of 82.50% with a total of 12.808 metric tons recovered Green Stores: 439 service centers nationwide transformed into “Green Stores” Collaboration with SALcE to promote sustainability partner (products, services, and organizations) certification

Documents

Chunghwa Telecom 2024 GHG Assurance

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ISO 14067 Verification (MOD)

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ISO 14067 Verification (HAMI VIDEO)

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ISO 14067 Verification (CHT CDN)

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ISO 14067 Verification (HiLink)

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ISO 14067 Verification (5G Mobile Internet Service)

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ISO 14067 Verification (HiNet)

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ISO 14067 Verification (Fixed Voice Service)

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ISO 14067 Verification (FTTx Service)

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ISO 14067 Verification (one Chunghwa Telecom's direct sale coounter service-1)

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ISO 14067 Verification (one Chunghwa Telecom's direct sale coounter service-2)

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Certificate for the use of product carbon footprint label(one Chunghwa Telecom's direct sale coounter service)

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Certificate for the use of product carbon footprint label (Hamivideo)

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Certificate for the use of product carbon footprint label

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GHG Emissions