It's a U.S. law, not sure about other countries. I believe it's the Bank Holding Company Act: https://www.federalreserve.gov/bcreg20080922b1.pdf https://www.f

It's a U.S. law, not sure about other countries. I believe it's the Bank Holding Company Act: https://www.federalreserve.gov/bcreg20080922b1.pdf https://www.federalreserve.gov/bcreg20080922b1.pdf