Enhancing digital services through innovative ideas and technical skills is a must, not an option. Taihan Fiberoptics has worked on the ‘future ready’ network for 40 years. Taihan Fiberoptics achieved the vertical integration for its products from optical fiber preforms to fiber-optic cables through its continuous research and development of optical materials, and this resulted in excellent product quality and flexible production capacity. Taihan Fiberoptics’ innovation continues in the fields as well, which will lead the fourth industrial revolution, such as sensing, laser, medical treatment, semiconductor, and space science.