In Singapore, the minimum liquid asset ratio requirement for banks is governed by the Monetary Authority of Singapore (MAS) Notice 649. According to this notice, banks are required to maintain a minimum liquidity coverage ratio (LCR) of 100%. This requirement ensures that banks hold an adequate level of high-quality liquid assets to cover their total net cash outflows over a 30-day stress period. The LCR is part of the Basel III regulatory framework, which aims to strengthen the liquidity positions of banks.