X-Line Design Co., Ltd., established in 2005 as X-Line Design Studio, set up Shen Chih Chung Union Design Co., Ltd. in 2013. Both the director and the chairman, Chih Chung, Shen (Ron Shen) was graduated from Chelsea College of Art and Design of University of the Arts London. He won TID award (gold award) in 2008, 2011, 2012, and 2014, Germany IF design award in 2011 and 2013, U.S.A. IDA silver award in 2014, IAI ASIA Pacific Interior Design Awards in 2009 and 2012, and Britain FX award in 2011.

X-Line Design Co., Ltd. is involved mainly in space design, including building space, commercial space, and residential space, with the concept of "linear stretch" to explore the essence of space, to discover the interaction between spaces (boundary and fuzz, mass and penetration), and to investigate the constancy between perception and space.