Currently, the wave of fintech is sweeping across the entire Southeast Asia. With the increasing adoption of digital finance, Southeast Asia has become an emerging market with active development and intense competition in the field of FinTech. BEIJING FIRST maintains continuous attention to the development of fintech in Southeast Asia and by releasing regular updates to track fintech policies and regulations in the region. Additionally, it provides an overview of the overall fintech performance after reviewing local fintech companies and relevant reports. This article is Southeast Asia FinTech Monthly Newsletter: Southeast Asia, Pakistan, Mexico and Nigeria (May).