Singapore on Friday granted four firms including Ant Group and Grab the licenses to run digital banks in the Southeast Asian country, in a move that would allow tech giants to expand their financial services offerings. The nation’s central bank, Monetary Authority of Singapore (MAS), said it applied a “rigorous, merit-based process” to select a strong slate of digital banks. As these digital banks start their pilot operations, MAS said it will review whether more companies could be granted this license. A total of 21 firms including TikTok-parent firm ByteDance…