SEOUL (BLOOMBERG) - Viva Republica, operator of South Korea's largest fintech start-up Toss, gained more funding for a US$7.4 billion (S$9.95 billion) value, to help the super app grow sales 12-fold by 2025 as it heads for a potential initial public offering (IPO). The Seoul-based start-up raised 460 billion won (S$545.8 million), with more than half coming from foreign investors including Alkeon Capital Management and Altos Ventures, founder and chief executive officer Lee Seung-gun said in an interview. State-run Korea Development Bank pumped 100 billion won into the round. It's considering another fundraising in the first half of 2022 that will be its largest ever and the last before the start-up seeks an IPO within the next five years. Toss is among a handful of global companies like Ant Group and Grab Holdings that are upending traditional financial services with all-in-one digital platforms that offer insurance, payments, credit scoring and even securities trading. It's planning to launch an online lender as early as September, after receiving South Korea's third internet banking licence earlier this month. That, alongside other services like its fast-growing securities platf...