According to HSBC official website, on September 24th, the Sustainable Digital Finance Alliance and the HSBC Sustainable Finance Center jointly released a keynote report on the impact of blockchain on green bonds. The report outlines the opportunities and challenges of using blockchains. The authors point out that the blockchain creates a wider appeal by offering new opportunities to smaller investors in the bond market. The authors also recommend using a broader investor base and maximizing the impact of blockchain on the growth of the green bond industry.