May-Har Siew is a data-driven marketing and media transformation leader with 25 years of APAC experience across China (including Hong Kong), Malaysia, Singapore, and Taiwan, known for driving multi-market growth and scalable best practices for multinational brands—including Nestlé (Malaysia), L’Oréal (Taiwan), Hasbro (global account), AmorePacific Group, and Google—through cross-market strategic direction and senior stakeholder management. She currently leads Digital, Data, and Media transformation for Unilever Taiwan & Hong Kong (TWHK), focused on improving media efficiency and conversion through first-party data (1PD) and advancing retail media innovation and performance marketing to accelerate eCommerce/OMNI/brand.com GMV growth. Recognized for excellence in retail media, she won Retail Media Star of the Year (North Asia) in the Retail Media Excellence Awards 2024, with certification endorsed by global functional leadership (Global Integrated Brand Experience Lead, Global Customer Development Lead, and Integrated Brand Experience Innovation Director, GMO). She was also named The Trade Desk Taiwan – 2024 Innovator for advancing retail-data-driven activation on the open internet through partnership-led innovation.
