World's Leading Sustainability Leader 2025

Beh Siew Kim, CFO and CSO of The Ascott Limited, has aligned sustainability and profitability through the launch of Ascott CARES. Under her leadership, Ascott became one of the first hospitality groups to earn GSTC-Committed Status, with over 20% of its portfolio certified and a 100% target by 2028. She forged key partnerships with GSTC and SG Enable, promoting capacity-building and disability inclusion.

Siew Kim ensures every team is engaged through global meetings, in-house training, and the Sustainability 101 programme—reaching 15,000+ staff. Her influence extends to board roles and industry committees, advancing national and regional ESG goals. Grounded in Ascott CARES’ five pillars, she balances rigorous sustainability frameworks with local relevance and social inclusion. Her work not only transforms Ascott, but also sets a scalable model for sustainability integration across global operations.