Privacy finance is moving from concept to practical application. Taking Qash as an example, this project has identified the core pain point of B2B banking—how to maintain operational efficiency while protecting transaction privacy. Its focus on emerging markets such as Southeast Asia, Latin America, and Africa is also very targeted, as these regions have the most urgent demand for privacy payments and financial inclusion. Starting from a clear B2B positioning, Qash first launched a minimal viable product to validate the direction, then gradually expanded to practical features like payment links and electronic invoices, and is recently planning integration with Para. This step-by-step approach indicates a trend: privacy technology is moving from theoretical research into real-world productization and commercialization. Each feature iteration is not just for storytelling but to solve real business problems.