Oi-Yee is the CEO of Climate Impact X (CIX), a global carbon markets platform headquartered in Singapore. She is responsible for overseeing the strategic direction of CIX, as well as developing and executing the company's vision and mission to accelerate environmental impact at scale through the carbon markets. Prior to CIX, Oi-Yee was CEO of ADDX, a blockchain-based private capital markets exchange in Singapore licensed and regulated by the Monetary Authority of Singapore. Before ADDX, she spent over 20 years in investment banking, leading major capital markets transactions for clients across Asia, Europe and US.