Suqian Liansheng cross-border layout of indium phosphide substrate

On June 8, Suqian Liansheng, a listed domestic fine chemical company, announced its cross-border entry into the field of indium phosphide substrates. The company's announcement disclosed that it has signed a joint venture intention agreement with Zhu Ronghui and Huizhi Optical Core Artificial Intelligence Technology Co., Ltd., and plans to jointly invest 10 million yuan to establish a joint venture company. Suqian Liansheng will invest 7 million yuan and hold 70% of the shares.

According to the plan, the project will be promoted in two phases. The fixed investment in the first phase is 100 million yuan, with the goal of achieving an annual production of 120,000 pieces of 4- to 6-inch indium phosphide substrates; in the second phase, an additional investment of 200 million yuan is planned to expand the annual production capacity to 400,000 pieces.

It is worth noting that the partner Zhu Ronghui was a shareholder and core technical staff of Yunnan Xinyao, a subsidiary of Yunnan Germanium Industry. It is reported that Yunnan Xinyao is one of the few companies in China that has mastered the mature mass production technology of indium phosphide substrates. It has achieved stable supply of 4-inch products, and 6-inch products are also undergoing continuous research and development iterations, playing an important role in the domestic production process of indium phosphide.

Suqian Liansheng was founded in 2011 and is headquartered in Suqian, Jiangsu. It has long been focused on the research and development, production and sales of anti-aging additives for polymer materials. It is a leading enterprise in the domestic hindered amine light stabilizer segment. This investment marks its official extension to the semiconductor material track.

Another investor, Huizhi Optical Core, was established in 2024 and has shown a certain depth of layout in the field of semiconductor technology. According to public information from the State Intellectual Property Office, Huizhi Optical Core has a number of utility model and invention patents, covering technical fields such as "wafer positive and negative ion coordination co-doping method" and "new high-cleanliness wafer cassette".