UBS Group AG's joint venture in Japan, in collaboration with SuMi TRUST Wealth Management Co, is set to acquire Credit Suisse's wealth management business in Japan, following UBS's acquisition of Credit Suisse last year. This move comes as UBS faces scrutiny under Switzerland's 'too big to fail' regulations, with the Swiss government preparing to introduce proposals this month aimed at safeguarding the country from the risks posed by large financial institutions. The acquisition and regulatory developments follow UBS's rescue of Credit Suisse, which has placed the bank under the spotlight regarding how Switzerland will protect itself against the potential failure of its major banks.