In 1997, a SEMS screw factory was established in Tainan to supply SEMS screws in electrical and assembling industries domestically.

In 2013, an opportunity in CNC machining business has been seen and a second factory was built and started delivering CNC machining products.

Over the years, we have built our reputation in the industries.

In 2021, Rah Alliance Co., Ltd. was established and ISO 9001 certified in 2022. It acts as a headquarters of these factories to provide services and products to overseas customers.

Our objective is to provide great quality fastener products with relatively low costs in SEMS screws and CNC machining products to create a win-win situation.