Hong Kong is making significant strides in the realm of green finance, positioning itself as a crucial link between the East and West. The Hong Kong Monetary Authority has been proactive in implementing green finance policies, including sustainable bond programmes with substantial debt issuance. By aligning with the common ground taxonomy developed by the EU and China, Hong Kong aims to streamline sustainable finance definitions and attract green capital. However, challenges lie in maintaining this position, especially regarding the complexities of transition finance and defining credible investments in sectors like hydrogen. The city's hybrid approach, considering both Chinese and European contexts, sets it apart in the global green finance landscape. By addressing these challenges and filling the gaps in transition finance standards, Hong Kong can solidify its role as a bridge for green capital flow and sustainable investments.