WHA Group identifies actual and potential impacts throughout the value chain through stakeholder engagement via interview session and online survey conducted on the short-listed sustainability topics. Input is gathered from both internal stakeholders, including employees and executives from each business unit, and external stakeholders, including suppliers, communities, business partners, regulators, and financial institutions. Each topic is assessed under the Double Materiality Principle through two dimensions:

• Impact Materiality (Impact to Society and Environment): Environmental and social impacts, including human rights and stakeholder impacts arising from WHA Group’s operations and the value chain.
• Financial Materiality (Impact to Business): The effect of sustainability topics on the organization’s financial performance and value creation.

Both dimensions are evaluated based on severity of impact and likelihood of occurrence, taking into account the scale of impact and the Group’s ability to manage or mitigate related risks.

WHA Group conducts internal workshops with executives and relevant personnel from our five core business units to review, discuss, and validate the materiality assessment results. The process is further supported by consultations with sustainability experts in the real estate sector to ensure that the identified topics appropriately reflect key sustainability priorities and industry developments. The outcomes are consolidated into a materiality matrix, where sustainability topics are prioritized based on their impacts on society and the environment, as well as their significance to the business, taking into account existing mitigation measures in place to manage each topic. Based on the combined significance from both perspectives, sustainability topics are classified into three levels: high material topics, medium material topics, and other significant topics. All sustainability topics and the assessment results are then presented to management and board-level committee for review.

The prioritized sustainability topics are first reviewed and endorsed by the Executive Committee before being submitted to the Corporate Governance and Sustainable Development Committee, a committee under WHA Group’s Board of Directors for final review and approval. The approved sustainability material topics guide WHA Group’s sustainability strategy for 2025 and are integrated into the Enterprise Risk Management (ERM) process. These topics also form the foundation for disclosures in the 2025 Sustainability Report.