Korea's would-be challenger banks received a stern rebuke from the nation's Financial Supervisory Commission in May as the top financial regulator rejected applications for a virtual-banking license from Viva Republica-backed Toss Bank and Kiwoom Securities-backed Kiwoom Bank. The regulator found Toss's capital situation problematic and Kiwoom's plan unfeasible. Both Toss Bank and Kiwoom Bank could re-apply for internet-banking licenses later in the year.

For the first time in over two decades, China’s central bank has taken control of a private bank. Baoshang Bank Co. which was founded in 1998 is headquartered in Baotou. With assets worth about 576 billion yuan ($83 billion) the lender is well established in the Inner-Mongolia region. Tomorrow Group, which holds around 89 percent of Baoshang Bank is claimed to have expropriated a serious amount of capital leading to major credit problems.

UK-based fintech Revolut has done well in Europe, where it is among the region's most prominent challenger banks. Before it acquired a banking license, Revolut built up a large customer base by offering a Visa or Mastercard-branded card tied in with a multi-currency account that allows users to transact in foreign currency on their smartphones at the interbank rate. Revolut has gradually added more services for users, such as no-fee ATM withdrawals overseas, pay-per-day insurance and the option to purchase cryptocurrency.

Chinese internet giant Alibaba has been trying to go global for years. Yet its core e-commerce business - made in and for China - remains dependent on its home market. The key revenue generators, the online shopping platforms Taobao and Tmall, barely have a footprint outside of Greater China.

Rather than take those platforms overseas, Alibaba hopes to become dominant in China's near abroad by acquiring stakes in local e-commerce champions, like Singapore's Lazada and Indonesia's Tokopedia. Alibaba wants to replicate the ecosystem that has worked so well in its home market of an e-commerce platform, logistics and of course, digital banking.

Singapore's race with Hong Kong to become Asia's fintech hub is heating up as the city-state mulls issuing licenses for virtual banks. Both cities have long been major regional banking centers. With Hong Kong increasingly reliant on business from mainland China, Singapore has a chance to capture more regional business, especially from Asean.

An increasing number of fintechs are entering the Australian market, posing a growing challenge to the country's banking incumbents. In April, Judo became the second Australian challenger bank to receive a license this year after Volt Bank in January. Two additional neo-banks, Xinja and 86 400, have applied for their banking licenses and are awaiting the regulator's decision.

With a banking license, Judo can operate without restrictions and is well poised to compete against incumbents. The four heavyweights that dominate the Australian banking market, Commonwealth Bank of Australia, Westpac Banking Corp, Australia and New Zealand Banking Group and National Australia Bank, have come under increasing criticism following a misconduct probe into the nation's finance industry that revealed occurrences of bribery to win mortgage business and fees charged to deceased account holders, among other malfeasance.

Among Asian countries, Pakistan is a relatively slow adopter of fintech, but it also has great need for easy-to-access digital financial services. Pakistan has a population of more than 210 million people, just 7% who have a bank account. High banking infrastructure costs have excluded most people from the formal financial system.There are several factors that make Pakistan an especially promising future fintech market. First, Pakistan's smartphone penetration is forecast to reach 50% by 2020 - that's more than 105 million potential customers. Second, Pakistan is one of the youngest countries in the world. 64% of the population is younger than 30 and 29% is aged 15-29, according to the United Nations' National Human Development Report. Young people are typically more willing to bank with their smartphones.

Foreign banks have a negligible presence in China, the world's largest consumer market. Research by KPMG has found that foreign banks hold about 1.3 % of China's domestic banking assets as of late 2017, compared to roughly 2.4% a decade earlier. Brokerages have not fared better. In 2015, UBS Securities and JPMorgan First Capital ranked 95th and 120th, respectively, among China's 125 brokerages by net income, according to the Securities Association of China.

With a young population of more than 100 million, the Philippines is one of the most exciting Asean markets for fintechs. Just 34% of Filipinos have bank accounts, according to the World Bank, which means fintechs can play a leading role in the government's financial inclusion efforts. The Philippines is setting up a digital national identity system which should boost credit access for the underbanked. Once registered, residents will be given a 12-digit PhilSys Number that will be used as a digital identity across different platforms. Authorities plan to sign up 7 million Filipinos in 2019 and an additional 20 million in 2020 once the formal application process starts. By 2023, the government expects to have completed registration for all Filipino citizens and resident aliens.

Vietnam is one of Southeast Asia's most dynamic markets for fintech. It has a young, connected population, a fast-growing economy and millions of unbanked people. In 2017, just 40% of Vietnam's adults (defined as 15 years or older) had a bank account, according to the World Bank. Investment in Vietnam's fintech startups reached $117 million in 2018, according to startup accelerator program Topica Founder Institute.