Building Circular Cities: Driving Construction Material Reuse

Raymond Kwok is a trained mechanical engineer and the General Manager of Environmental Science at Chinachem Group, where he spearheads building services, sustainability, and innovation initiatives. In his current leadership role, he serves as the vice-chairman of the Corporate “Planet Sub-committee” and is a key member of the ESG steering committee, actively driving environmental policy-making from the planning stage through to operation. Drawing on his extensive background in advanced engineering and green building practices, his work champions lifecycle sustainability and directly supports the transition toward circular cities and highly resource-efficient built environments.

My Sustainability Goals for 2026:

• Scale Smart Building Innovations for Operational Efficiency
• Drive High Energy Performance Design in New Developments
• Boost Material Reuse and Cut Construction Waste

Celina Chan heads up Sustainability and Sustainable Finance for OCBC Bank in Hong Kong. OCBC is the longest established Singapore bank and is one of the world’s most highly-rated banks.

OCBC, as an early mover in mobilising capital to support corporates’ sustainable transition, has surpassed S$80 billion (c. HK$490 billion or US$60 billion) in sustainable financing. OCBC has been named Best Bank for Sustainable Finance in Hong Kong, and Best Bank for Sustainable Finance in Singapore, by Global Finance.

Celina, as a pioneer in ESG solutions, has contributed to innovative transactions including the world’s first Sustainability-Linked Bond for a real estate developer (2021), Hong Kong’s first sustainable finance in the logistics industry (2022), as well as Hong Kong’s first Green And Transition Loan in the real estate industry (2024).

Prior to joining OCBC, Celina was at HSBC as an International Manager where she was a corporate banker in Hong Kong, Sri Lanka, and the UK; and where she managed regional and global strategies for the bank. She specialised in impact finance when she was awarded a scholarship to complete an MBA at the University of Oxford. Celina has lived in Asia, Europe, US, and Africa and is an advocate of finance for good.

My Sustainability Goals for 2026:

For greater collaboration in Hong Kong, to mobilise much needed capital and to support sectors most in need on their transition towards a sustainable world.

Ken Ho is the Head of Sustainability and Environment at Hip Hing Construction Co. Ltd., leading corporate ESG strategy, decarbonization roadmaps, and sustainable construction practices across major building and infrastructure projects in Hong Kong.

With deep expertise in site environmental management, Scope 1–3 emissions reduction, and low-carbon technology integration, Ken is a key driver of resource circularity within the local built environment.

Ken actively advocates for practical, scalable circular economy solutions—focusing on material lifecycle optimization, onsite waste reduction, and material reuse to accelerate Hong Kong’s transition toward net-zero, resilient urban development.
Speaker’s Sustainability Goals for 2026

My Sustainability Goals for 2026:

• Accelerate Construction Material Circularity: Expand onsite material sorting, reclamation, and reuse protocols across key building projects to reduce construction waste diverted to landfills.
• Drive Embodied Carbon Reduction: Collaborate with material suppliers and design teams to standardize low-carbon, recycled, and upcycled building materials in project specifications.
• Advance Whole-Lifecycle Stewardship: Foster regional supply chain partnerships to enable material traceability and turn temporary site resources into long-term circular assets.

Siu Kei (SK) Wu is Head of ESG at Alliance Construction Materials Limited, with over 30 years of experience in sustainability, health and safety, environmental management, and risk management. He leads the company’s ESG, circular economy, and digital transformation initiatives, and has been a key contributor to low-carbon construction materials development in Hong Kong. SK actively supports industry advancement through his roles with HKQAA and the Hong Kong Accreditation Service on GHG validation and verification.