According to Finance Magnates on Tuesday (April 30), the Financial Conduct Authority (FCA) announced the fifth list of 29 companies that supervised the sandbox. Among them, eight companies plan to use blockchain technology to implement their products and services. These include some large companies. For example, the London Stock Exchange said it is planning to apply blockchain to securities trading. Standard Chartered has also joined the regulatory sandbox. The London-based bank plans to convert retail deposits into tokens.