Shanghai Neturen Co., Ltd. is a Japan-China joint venture established in October 2003 in Jiading Industrial Zone, Shanghai. Our primary forcus is the manufacture and sales of high-strength spring steel wire (ITW®) for cold-formed coil springs used mainly for automobile suspension springs, and also the research and development of related new products. Compared to conventional spring steel wire (OT wire) manufactured by oil quenching, ITW® can provide weight saving  by taking advantage of its higher strength characteristics, such as suspension springs for automobiles and multipurpose springs for general industry in a wide range of applications. We will continue to contribute to society through the manufacture, research and development of springs for electric vehicles toward carbon neutrality in 2050.