Tone-Shine was established in 1973 as an overseas subsidiary in Taiwan of Japan’s sansei, whose head office is located in Shinagawa, Tokyo. sansei is a long-established switch manufacturer with more than 70 years of history. Tone-Shine inherits the traditional spirit and technical expertise of its Japanese headquarters, and has expanded its business scope to the design, manufacturing, and sales of switches, antennas, coaxial cables, and various electronic components.

In 2006, in response to localized production needs, Tone-Shine established a manufacturing plant (Dong Ming Electronics) in Humen, Dongguan, China, providing comprehensive production and sales solutions as well as local support services. Since its founding, Tone-Shine has upheld the belief of “Rooted in Taiwan, Embracing the World”, continuously enhancing, innovating, and expanding its product offerings. The company is dedicated to the design, development, and OEM manufacturing of components for wireless communication products. Its products are sold to major communication, audio-visual, and electronic equipment manufacturers both domestically and internationally, making Tone-Shine a trusted and high-quality partner for its customers.