How about Zhongtian technology

Zhongtian Science and Technology Group started from 1992 and started from optical fiber communication. Thanks to the reform and opening up, a diversified industrial pattern has been formed, such as information and communication, smart grid, new energy, marine system, precision equipment and new materials. It has more than 80 subsidiaries and 16000 employees in 54 overseas countries and regions. Relying on fine manufacturing and intelligent manufacturing, Zhongtian Technology's product technology level is "parallel" or even "leading" with the international market, creating 26 "China No.1", 4 main products being No.1 in the global market and 7 products being No.1 in China. Jiangsu Zhongtian Technology Co., Ltd., the core enterprise of the group, was listed on the Shanghai Stock Exchange in 2002 (SSE code: 600522), which is regarded as the first special optical cable in China.