The PWB Expo, also known as the Printed Wiring Boards Expo, is a trade fair held annually in Tokyo, specializing in the world of printed wiring boards (PWBs). It was established to provide a platform for professionals in the electronics industry to exchange ideas and showcase the latest technologies and services. The event is organized by RX Japan Ltd. A key focus of the PWB Expo is the presentation of PCBs/PWBs and related technologies. The latest PCB materials, design and development services, and design tools are introduced here. The expo attracts exhibitors and visitors from various sectors, including home electronics, smartphones, LED technology, and automotive manufacturing. It offers an excellent opportunity for professionals to interact with designers, researchers, and developers, and to establish new business connections. A distinctive feature of the PWB Expo is that it is part of NEPCON Japan, one of the largest electronics manufacturing trade fairs in Asia. This provides participants with an expanded perspective and access to a wider range of products, services, and knowledge in the electronics sector. The expo is held at Tokyo Big Sight, one of Japan's largest and most modern exhibition centers. Known for its unique architecture and state-of-the-art facilities, Tokyo Big Sight is an ideal venue for such a technology-focused event. The PWB Expo will take place on 3 days from Wednesday, 21. January to Friday, 23. January 2026 in Tokyo.