Sustainability Report 2023/24

Central Plaza International Commerce Centre (ICC) CASE STUDY Upgrading Existing Buildings to Pursue Sustainability We improve our buildings’ sustainability performance by using innovative and green technology. We have established retrofitting and upgrading plans and targets for existing buildings, and allocated resources to implement such plans over the short-, medium- and long-term. In addition to providing a comfortable and healthy environment for customers and tenants, we enhance the energy efficiency, resource utilization and indoor air quality of the buildings. • Used a high performance, oil-free centrifugal chiller and low-energy variable air volume systems • Had triple-glazed curtain walls to allow daylight penetration and reduce solar heat gain • Used intelligent building management that allows prompt control of electrical and mechanical systems, providing comfort and enhancing energy efficiency • Used BIM and digital twin technology to enhance facility operations and optimize energy efficiency • Used chilled water battery technology and AI models to calculate cooling demands, enhancing air conditioning efficiency • Optimized air-handling units controls to reduce electricity consumption by more than 30% • Adopted the online Smart Waste Management System to monitor and improve tenants’ solid waste and recycling patterns • Saved more than 20 million kWh of electricity since 2012, with a reduction in energy intensity of more than 30% • Reduced freshwater consumption by using recycled rainwater for irrigation • Used low-carbon materials and local construction materials to reduce the building’s embodied carbon • Earned Platinum certifications under LEED v4.1 Operations and Maintenance: Existing Buildings and BEAM Plus V2.0 Comprehensive Scheme Existing Buildings Notable highlights include: For details of its green features, please visit here. • Collaborated with PolyU for life cycle retro-commissioning approach to monitor the building’s performance and improve energy efficiency • Engaged community with visits and seminars to share best practice and new technology • Earned Platinum certification under LEED v4.1 Operations and Maintenance: Existing Buildings, BREEAM In-Use certification and WiredScore Platinum certification • Won the Grand Award and Carbon Neutrality Achievement Award at the Excellent Building Award 2023 Sun Hung Kai Properties Limited | Sustainability Report 2023/24 < 22 > Our Reporting Approach Message from the Sustainability Steering Committee Our Business Our Approach to Sustainability Value Created for the Environment Value Created for People Value Created for Customers Value Created for Supply Chain Value Created for Community Appendices