Odaily Planet Daily News: U.S. congressmen asked the SEC and FINRA to provide non-public communications and records of Prometheum's special purpose broker (SPBD) application and approval process. The lawmakers expressed dissatisfaction with the SEC's response on March 26 regarding the classification of Ethereum (ETH) and Prometheum's intention to custody ETH, and set a deadline of June 5 for a response. Prometheum received SPBD approval from FINRA in May 2023 and launched ETH as a custody service for securities on May 17. Its CEO Aaron Kaplan supports the regulation of cryptocurrencies under existing securities laws, which has caused controversy in the crypto industry. The Blockchain Association filed a Freedom of Information Act request in June, questioning the transparency of its approval process.