Zhejiang Hengyun Zhilian Digital Technology Co., Ltd. was established by a joint venture between Tongkun Group and Lenovo Group, a top 500 company in the world.Hengyun Zhilian is committed to combining Tongkun's industry experience and Lenovo's technical resources to build a benchmark enterprise in the field of digital technology services. It has successively undertaken many projects such as the industrial Internet, the future factory, the digital intelligence operation center, and the smart village.

Zhejiang Yourun Machinery Manufacturing Co., Ltd. Machinery focuses on the production of equipment parts, mainly covering the research and development, production and sales of chemical fiber special equipment and precision machinery parts.It serves the main business sector all year round.