The China (Shanghai) International Optics Fair (SIOF) is among the most significant optical trade fairs in China and ranks as one of the largest of its kind in Asia. The abbreviation SIOF represents a platform where international brands and the latest products from the optical industry are showcased. This fair is held annually at the Shanghai New International Expo Centre (SNIEC), one of China's most modern and largest exhibition centers, which is excellently connected to the urban transport network. The SIOF is organized by the China Optometric & Optical Association (COOA) in cooperation with Sinolight International Holdings Corporation and Orient International Exhibition Co., Ltd. from Hong Kong. It serves as a central meeting point for professionals from the optics and eye care sectors, offering a wide range of products and services, including eyeglass frames, sunglasses, contact lenses, visual testing equipment, as well as machinery and materials for manufacturing optical products. A key feature of the SIOF is its location in Shanghai, a dynamic hub of international trade and innovation. This positions the fair as a global focal point for the optical industry and fosters technological advancements as well as business synergies. The fair addresses topics such as optical instruments, manufacturing technologies, eye care products, and industry-specific software solutions. Highlights include business matchmaking activities, conferences, and seminars with leading industry experts, providing valuable insights and networking opportunities. The SIOF attracts exhibitors and visitors from various sectors, including manufacturers of optical devices and vendors of eyeglass frames and lenses, as well as professionals from optometry and ophthalmology. It offers a platform to showcase products, explore new technologies, and discuss industry trends. In summary, the China (Shanghai) International Optics Fair plays a central role in promoting the optical industry by serving as a forum for innovation, exchange, and business development. Its annual occurrence makes it a staple in the calendar of professionals worldwide and underscores its importance as an example of international collaboration and progress in the optical industry. The China (Shanghai) International Optics Fair (SIOF) takes place annually, and therefore for the 24th time previsibly in February 2026 in Shanghai.