Stakeholder Engagement
TCC values the opinions of its stakeholders, actively communicating and engaging with regard to material sustainability issues, which are incorporated in the corporate sustainable development blueprint. In line with the nature of the industry and with reference to the GRI Standards, SASB Standards, and Dow Jones Sustainability Index (DJSI) as well as AA1000 Stakeholder Engagement Standard, it employs the five principles, i.e. Responsibility, Influence, Tension, Diverse Perspectives, and Dependency in the identification and ordering of stakeholder significance.
The mechanism of communication and reporting will be conducted at least twice each year. The status of stakeholder communication for 2024 was reported to the Board of Directors on March 12, 2025, and the status of stakeholder communication for 2025 was reported to the Board of Directors on December 4, 2025. 2025-2026 Material Topics and Double Materiality Matrix were reported to the Board of Directors on May 13, 2026.
Assessment Process for Stakeholders and Material Topics
Step and Action
Key Performance

Identify Stakeholders
- Methodology: Based on the AA1000 SES and TCC's Stakeholder Engagement Policy.
- Target Audience: Department heads.
- Method: 5-point Likert scale questionnaire.
- Identified 10
stakeholder categories

Focus on TCC's Sustainability Issues
Based on the previous sustainability topics, TCC updated the list to align with its global expansion, incorporating feedback from major global peers and external consultants.
- Focused on 17
sustainability issues

Assess Impacts on Economy, Environment, and Society (ESG)
- Methodology: TWSE Rules Governing the Preparation and Filing of Sustainability Reports and its referenced GRI 3: Material Topics.
- Target Audience: 10 identified stakeholder categories.
- Method: Questionnaires survey.
- 440
collected valid questionnaires - 84%
valid response rate

Assess Impacts on Corporate Value (Financial)
- Methodology: Joint guidance issued by the IFRS Foundation and EFRAG in 2024, and global peer practices.
- Target Audience: Senior executives across TCC business groups.
- Method: Based on executive survey results, Monte Carlo simulations were integrated with historical financial data calibration to scientifically quantify the financial impacts of IFRS risks and opportunities.
- 440
collected valid questionnaires - 84%
valid response rate

Double Materiality Assessment
Methodology: GRI's Double Materiality: The guiding principle for sustainability reporting and the European Sustainability Reporting Standards (ESRS). Consolidated ESG and financial impact results to map the double materiality matrix. A score of 3 or above on either dimension was set as the materiality threshold. Topics falling below the threshold but identified as areas of TCC's long-term focus and commitment were included upon management approval.
- Discussed by 34
senior executives

Report to Governing Body
The sustainability report was compiled based on the proposed material topics and submitted sequentially to the Corporate Sustainable Development Committee and the Board of Directors for approval, ensuring alignment with TCC's business risks and strategies.
- Identified 14
material topics - Submitted to the Sustainable Development Committee on May 13, 2026 and to the Board of Directors on May 13, 2026
Identification of Sustainability Issues
TCC conducts a sustainability topic identification and materiality assessment every two years. In 2024, following its rapid global expansion, TCC officially transformed into the group holding company "TCC Group Holdings." In 2025, the Management Team and senior executives from the global low-carbon construction materials and new energy business groups participated for the first time. Referencing the GRI Double Materiality Guide-lines and the European Sustainability Reporting Standards (ESRS), TCC introduced a double materiality framework to analyze these sustainability topics. This assessment simultaneously adopted "Outside-In" and "Inside-Out" perspectives to examine the financial and operational impacts of external sustainability issues on TCC, as well as the actual impacts of TCC’s operations on the environment, society, and economy. For financial materiality, TCC introduced a scientific quantitative model, calibrated and verified using historical operational data. This systematically identifies the sustaina-bility risks and opportunities across different operational sites and industries, ensuring that the assessment results truly reflect TCC’s strategic direction, governance mindset, and long-term vision under its global operational framework.
TCC Double Materiality Matrix
Stakeholder engagement programs
TCC is convinced that only with smooth and effective engagement with its stakeholders can TCC capture the pulses in the markets, economy, society, and environment, and ultimately put TCC's sustainability missions of "Nature First" and "Benefit to Society" into action. As a result, TCC implements stakeholder engagement programs that are applied to all local operations and stakeholder categories. These programs include conducting local stakeholder or community impact assessments to understand the potential effects of operations on stakeholders. Concurrently, TCC systematically designed sustainability issue survey questionnaires, with which it collects and analyzes feedback of stakeholders; meanwhile, it evaluates the impacts and risk levels of sustainability issues on corporate operation, identifying material issues and prioritizing responses and reactions to meet stakeholders' expectations toward TCC.
Upholding the spirit of open transparency, TCC not only establishes clear communication channels but also discloses information through diverse formats, ensuring effective and quality communication results with its stakeholders. TCC proactively meets with local stakeholders to identify emerging concerns. This includes visiting nearby villages and schools, promoting sustainable ideas via featured programs, and enhancing residents' understanding of TCC while building their participation capabilities to ensure effective communication with TCC.
In addition, TCC values stakeholder expectations and regularly reviews the surveys of perceptions for local stakeholders on engagement strategy. TCC promptly responds to and continuously tracks grievances raised by stakeholders, ensuring proper handling and adjustments to the engagement program to maintain interactions. Important issues identified during the engagement process are also incorporated into the corporate operation and sustainable development blueprint, so that TCC may better promote sustainable operation, fulfilling its corporate social responsibilities. Please refer to TCC Stakeholder Engagement Policy for more information.
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Participation in training courses and promotional seminars | Multiple times a year |
|
|
Conference exchanges and interviews | Multiple times a year |
|
|
|
| ||
Semiannually |
|
| |
Plant Visitings | Multiple times a year |
|
|
Proactive external communication of TCC actions via disclosures on corporate website and the Market Observation Post System | Biweekly |
|
|
Bilateral communication with stakeholders via official document and correspondence |
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
TCC Sustainability Report and Highlights Presentation | Annually |
|
|
Hosting or attending investor conferences | Semiannually |
|
|
Annually |
|
| |
Communication with institutional investors via email, phone call, or meeting | Irregularly |
|
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Client Satisfaction Survey | Annually |
|
|
Low-carbon cement business promotion | Monthly | Taiwan RMC Portland Limestone Cement (IL) concrete and optimized low-carbon mix promotion sessions:
|
|
Meetings with clients | Multiple times a year |
|
|
Product Technical Exchange and Customer Collaboration | Irregularly |
|
|
|
| ||
|
| ||
|
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Performance appraisal and interviews | Annually/Quarterly |
|
|
Cultural and Generational communication | Irregularly |
|
|
Employee engagement survey & human rights due diligence | Annually |
|
|
Labor-management meeting/union meeting/employee welfare meeting | Quarterly |
| |
Town Hall Meeting | Quarterly |
| |
TCC Monthly Meeting | Monthly |
| |
Employee suggestion mailbox (TCCsuggestion@taiwancement.com), and a Employee-Friendly secure online platform to handle complaints, including cases of sexual harassment and violations of gender equality | Irregularly |
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Organizing education, training, or workshops | Irregularly | Various sustainability activities were held:
|
|
Site Visits and Supplier Engagement | Irregularly |
|
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| ||
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| ||
|
| ||
Contractor Coordination Meetings | Irregularly |
|
|
Supplier suggestion mailbox available on the TCC corporate website (supplier@taiwancement.com) | Irregularly |
|
|
Communication with suppliers/contractors via email and phone call | Irregularly |
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Media delegation tour and press release | Irregularly |
|
|
Phone call & email | Irregularly |
| |
Corporate website, Facebook Page/WeChat official account/Instagram/LinkedIn | Irregularly |
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
DAKA Community Engagement Program | Irregularly |
|
|
Visits to local communities and schools | Irregularly |
| |
Promotion of sustainable ideas via featured program | Irregularly |
| |
Human rights and environmental due diligence | Annually |
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Participation in the Annual Meeting of the Asian Cement Producers Amity Club (ACPAC) | Annually |
|
|
Participation in GCCA's seminars and various sustainability meetings | Biweekly |
|
|
Attendance in the association board of directors' engagement/sales/technical committee to share the industrial practices of TCC | Irregularly |
|
|
Visits by Industry Associations and Academic Institutions | Irregularly |
|
|
Industry-academia collaboration | Irregularly |
| |
Climate Policy Advocacy through Industry Association Collaboration | Irregularly |
|
|
Academic Publications | Irregularly |
|
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Phone call & email | Irregularly |
|
|
Sustainability exchange activities | Irregularly |
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Phone call & email | Irregularly |
|
|
TCC Corporate website, Facebook Page/WeChat official account/Instagram/LinkedIn | Irregularly |
|
Stakeholder engagement programs
TCC is convinced that only with smooth and effective engagement with its stakeholders can TCC capture the pulses in the markets, economy, society, and environment, and ultimately put TCC's sustainability missions of "Nature First" and "Benefit to Society" into action. As a result, TCC implements stakeholder engagement programs that are applied to all local operations and stakeholder categories. These programs include conducting local stakeholder or community impact assessments to understand the potential effects of operations on stakeholders. Concurrently, TCC systematically designed sustainability issue survey questionnaires, with which it collects and analyzes feedback of stakeholders; meanwhile, it evaluates the impacts and risk levels of sustainability issues on corporate operation, identifying material issues and prioritizing responses and reactions to meet stakeholders' expectations toward TCC.
Upholding the spirit of open transparency, TCC not only establishes clear communication channels but also discloses information through diverse formats, ensuring effective and quality communication results with its stakeholders. TCC proactively meets with local stakeholders to identify emerging concerns. This includes visiting nearby villages and schools, promoting sustainable ideas via featured programs, and enhancing residents' understanding of TCC while building their participation capabilities to ensure effective communication with TCC.
In addition, TCC values stakeholder expectations and regularly reviews the surveys of perceptions for local stakeholders on engagement strategy. TCC promptly responds to and continuously tracks grievances raised by stakeholders, ensuring proper handling and adjustments to the engagement program to maintain interactions. Important issues identified during the engagement process are also incorporated into the corporate operation and sustainable development blueprint, so that TCC may better promote sustainable operation, fulfilling its corporate social responsibilities. Please refer to TCC Stakeholder Engagement Policy for more information.
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
| Participation in training courses and promotional seminars | Multiple times a year |
|
|
| Conference exchanges and interviews | Multiple times a year |
|
|
|
| ||
| Semiannually |
|
| |
| Plant Visitings | Multiple times a year |
|
|
Proactive external communication of TCC actions via disclosures on corporate website and the Market Observation Post System | Biweekly |
|
|
Bilateral communication with stakeholders via official document and correspondence | Biweekly |
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
| TCC Sustainability Report and Highlights Presentation | Annually |
|
|
Hosting or attending investor conferences | Semiannually |
|
|
| |||
Annually |
|
| |
Communication with institutional investors via email, phone call, or meeting | Irregularly |
|
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Client Satisfaction Survey | Annually |
|
|
Low-carbon cement business promotion | Monthly | Taiwan RMC Portland Limestone Cement (IL) concrete and optimized low-carbon mix promotion sessions:
|
|
Meetings with clients | Multiple times a year |
|
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
| Performance appraisal and interviews | Annually/Quarterly |
|
|
| Cultural and Generational communication | Irregularly |
|
|
| Employee engagement survey & human rights due diligence | Annually |
|
|
| Labor-management meeting/union meeting/employee welfare meeting | Quarterly |
| |
| Town Hall Meeting | Quarterly |
| |
| TCC Monthly Meeting | Monthly |
| |
| Employee suggestion mailbox (TCCsuggestion@taiwancement.com), and a Employee-Friendly secure online platform to handle complaints, including cases of sexual harassment and violations of gender equality | Irregularly |
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
| Organizing education, training, or workshops | Irregularly | Various sustainability activities were held:
|
|
| Supplier suggestion mailbox available on the TCC corporate website | Irregularly |
|
|
| Communication with suppliers/contractors via email and phone call | Irregularly |
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
| Media delegation tour and press release | Irregularly |
|
|
| Phone call & email | Irregularly |
| |
| Corporate website, Facebook Page/WeChat official account/Instagram | Irregularly |
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Social Return on Investment (SROI) in force | Irregularly |
|
|
Visits to local communities and schools | Irregularly |
| |
Promotion of sustainable ideas via featured program | Irregularly |
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
Participation in the Annual Meeting of the Asian Cement Producers Amity Club (ACPAC) | Annually |
|
|
Participation in GCCA's seminars and various sustainability meetings | Biweekly |
|
|
Attendance in the association board of directors' engagement/sales/technical committee to share the industrial practices of TCC | Irregularly |
|
|
Visiting of Educational Institutes | Irregularly |
|
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
| Phone call & email | Irregularly |
|
|
| Sustainability exchange activities | Irregularly |
|
| Means of Engagement | Frequency of Engagement | Engagement of Performances | Engagement Experiences and Feedback |
|---|---|---|---|
| Phone call & email | Irregularly |
|
|
| TCC Corporate website, Facebook Page/WeChat official account/Instagram | Irregularly |
|
Sustainability Impact Valuation
The value of corporate sustainability should not be measured by financial figures alone. TCC's operational processes not only rely on inputs like natural resources, raw materials, energy, and labor but also generate both positive and negative impacts on the environment and society. In 2023, TCC piloted the Impact Measurement & Valuation (IMV) management tool to comprehensively quantify the changes our business activities bring to the well-being of stakeholders from an external perspective. We transform these impacts into the easily understandable financial language of "NTD-equivalent value." This not only allows stakeholders to intuitively understand TCC's social and environmental contributions but also provides more diverse and forward-looking insights for corporate decision-making. This mindset helps TCC drive a "Net Positive" business model, with the goal of maximizing positive benefits and minimizing negative impacts.
Just Transition
Potentially Impacted Facet
01
Hard-to-abate industry's transition
02
Changes in the labor employment structure
03
Installation of new energy project sites or biodiversity areas nearly TCC plants
04
Information opacity and asymmetry
05
Green inflation born from net-zero transition
Strategy
Measures

Support the industrial transition of cement industry
Actively engage with agencies like MOEA, MOI, Public Construction Commission, and MOE, participating in amending construction regulations for low-carbon products, including the roles of public construction, chloride ion, and commodity tax.
Launch the Total Solutions for low-carbon and new energy buildings, strengthen the application and promotion of low-carbon construction material products.
Provide GHG inventory courses to suppliers and set up "the supplier and client program" TCC Carbon Academy in 2024.

Participate in industrial/- sustainability associations for more communication
Partake in the GCCA meeting to formulate net-zero pathway solutions with peers.
Participate in associations like Taiwan BIM Alliance of NTU and the Low Carbon Building Alliance, capturing processes and perspectives of civil engineering talent development and enhance product applications.
Advocate and discuss Taiwan's construction industry's carbon competitiveness and trends at major sustainability events and at Operation Headquarters.

Avoid impact on employees' rights and interests
TCC provides the "Sustainable Learning Passport" and "Carbon Academy'' to enhance employee sustainability awareness and foster carbon management expertise.
Provide professional skills training and helps in acquiring licenses/certificates for new roles emerging from the transition.
Organize "Hoping Plant Cement Workshop" to develop new potential from employees.

Ensure the rights and interests of communities near TCC plants
Applied for tribal consultations and consent to protect local residents' rights and interests
Open the Electrical Engineering Talents Program at Szu-Wei Senior High School, Hualien. Offer local students exam-free entry and aid in certification attainment.
Establish DAKA Market as the local startup incubator.

Expand communication to reduce transition risks
Publish Stakeholder Engagement Policy.
Periodically update stakeholders through the corporate website, Sustainability Reports, and social media to improve engagement and communication.
Promote the "Carbon Reduction Parent-Child Bankbook" to simulate carbon currency transactions
Establish communication venues such as TCC DAKA Open Eco-Factory and Hanben Ocean Station.

Assist in reducing costs in switching to green lifestyle
Provide employees with subsidies for green transport, negotiate discounts with electric motorcycle brands, and offer on-site promotions and sales.
Promote "EARTH HELPER, the Carbon Reduction Sustainability Action" campaign for a lifestyle transformation.
Install smart recycling machines and eco-friendly laundry/dishwashing refill stations at TCC DAKA, offering discounts to travelers using eco-friendly utensils.
Point of Contact

Government Agencies
Spokesperson Ms. Yeh, Vice President

Shareholders / Investors
Finance Department, Ms. Huang

Clients
Engineering Affairs Department, Mr. Chang

Employees
Human Resources Department, Mr. Hsu

Suppliers / Contractors
Procurement Department, Ms. Wu

Media
Office of responsibility and Sustainability, Ms. Yeh, Vice President

Local Communities
TCC DAKA, Mr. Lee

Industry Associations / Industrial & Academic Organizations
Engineering Affairs Department, Mr. Chang

Sustainability Associations
Engineering Affairs Department, Mr. Chang










