Woofun AI reports that Flex, a California-based fintech firm, has closed a $70 million Series B financing round led by Halo Fund. The capital injection supports the expansion of Flex Global, a stablecoin-based cross-border banking platform providing multi-currency accounts in 32 currencies across 170 countries and regions. The company primarily serves clients with annual revenues between $3 million and $200 million, focusing on the construction, wholesale, and import-export sectors.