The 22nd Edition of Global Conference on Catalysis & Reaction Engineering (CAT 2026) will be held from October 5–7, 2026, in Tokyo, Japan, with virtual participation available. Under the theme “Advancing Catalysis & Chemical Engineering: From Principles to Practice,” the conference will bring together researchers, scientists, engineers, industry professionals, and policymakers to exchange knowledge and explore the latest developments in catalysis and chemical engineering. The program will cover catalysis, reaction engineering, green chemistry, Nano catalysis, process optimization, and sustainable chemical technologies, featuring keynote presentations, oral sessions, workshops, and panel discussions focused on emerging innovations, practical applications, and industry advancements.