Founded in 1974, Challenge Industrial Co., Ltd. – also known as CIC – specializes in the manufacture, supply, and distribution of indoor and outdoor current transformers and potential transformers, as well as electronic energy meters, distribution transformers, resin insulators, and electrical reactors. Also offered is a comprehensive selection of electrical and electronic equipment along with a variety of industrial hardware for the use of a wide range of industries and businesses.

Empowered by advanced technology transferred from Germany, CIC operates an accredited testing laboratory and multiple factories, where it uses only highest-quality materials to manufacture its products, all of which backed by customer support and a satisfaction guarantee. CIC products have been widely used in revenue and switchboard applications by power companies as well as major engineering and construction firms in the United States, Canada, Russia, Japan, and other countries. With more than 40 years of product application experience, CIC is able to provide customers worldwide with expert advice, together with optimal and cost-effective solutions. One of the most trusted and respected brands in the electronics and electrical power markets, CIC also welcomes requests for OEM/ODM services.