its Astrobank I spoke to recently, but other top 5 banks are ready to discuss such on-boarding. There are no fixed requirements, you just need to get it approved by them based on their internal policies and requirements. They are checking normal stuff, UBO origin, type of operation, countries involved, money laundering risk, hassle-reward balance etc. We work closely with this bank as well , so if you have anything in front of you we can examine it.