2025 SUSTAINABILITY REPORT 1 HAINAN AIRPORT INFRASTRUCTURE CO., LTD. 2025 SUSTAINABILITY REPORT CONTENTS About This Report 02 Message from the Board 04 About Hainan Airport 06 Feature: Gateway Responsibility - Fully Gearing Up for the New Journey of the Hainan Free Trade Port's Island‑wide Customs Closure 10 ESG Performance 82 Indicator Index 85 Feedback 91 2 Strategic Planning: Green Steering: Creating Value Painting Low‑Carbon Cohesion and Safety: Governance Foundation: Mobility Progress Enabling Better Ensuring Long‑Term Sustainability Governance 16 Environmental Management 24 Safe Mobility 42 Party Building Leadership 72 Sustainability Impact, Risk and Opportunity Management 18 Energy Utilization 34 Employee Growth 56 Risk Prevention and Control 77 Sustainability Strategy Sustainability Metrics and Targets 17 21 Climate Change Resource Utilization Ecosystem and Biodiversity Conservation 28 36 37 Quality Service Social Development 54 64 Corporate Governance Compliance Operations 74 79 3 HAINAN AIRPORT INFRASTRUCTURE CO., LTD. 2025 SUSTAINABILITY REPORT Principles of Preparation About This Report The 2025 Sustainability Report of Hainan Airport Infrastructure Co., Ltd. (hereinafter referred to as "this Report") marks the 11th consecutive year that Hainan Airport Infrastructure Co., Ltd. (hereinafter referred to as "Hainan Airport," "the Company," or "we/our") has published a sustainability report (ESG report/CSR report). This Report is intended to present to our stakeholders the Company's management methods, actions, and performance of responsibilities related to environmental, social, and governance (hereinafter referred to as "ESG") matters in 2025. Report Scope Organizational Scope: This Report covers Hainan Airport Infrastructure Co., Ltd. and its member companies, consistent with the scope of the consolidated financial statements of Hainan Airport (600515.SH). Time Range: The information contained in this Report covers the period from January 1, 2025 to December 31, 2025 (i.e., the "Reporting period"). To maintain the continuity of information, some content has been retrospectively adjusted and extended. Reporting Cycle: This Report is an annual report, and the previous report was the 2024 Sustainability (ESG) Report. Basis for Preparation This Report has been prepared in accordance with the requirements of the Shanghai Stock Exchange's Guidelines No. 14 of Shanghai Stock Exchange for Self-Regulation of Listed Companies— Sustainability Reporting (Trial) (hereinafter referred to as the "Guidelines") and Guidelines No. 1 of Shanghai Stock Exchange for Self-Regulation of Listed Companies—Standard Operation (Revised in May 2025) . It also moderately refers to the Global Reporting Initiative (GRI) Sustainability Reporting Standards (2021 Edition) , and has been developed in line with the Company's current stage of development and its actual ESG practices. Furthermore, this Report responds to the industry's material issues of concern to mainstream international ESG rating agencies and the Sustainable Development Goals (SDGs) of the United Nations (UN). 02 Materiality: This Report identifies and prioritizes the Company's material issues based on impact materiality and financial materiality, which form the focus of our ESG reporting. Impartiality: The content of this Report reflects objective facts and discloses information that involves both positive and negative aspects of the Company impartially, avoiding any potential to inappropriately influence the decisions or judgments of the readers of this Report. Quantifiability and Comparability: Key performance indicators in this Report must be measurable and accompanied by explanatory notes outlining the data collection, measurement, and calculation methods. Furthermore, this Report adopts disclosure and statistical methods consistent with the Guidelines. Where appropriate, certain data have been retrospecti