Tongbi Finance News On June 1, 2026, Shenyang Scientific Instrument Co., Ltd. of the Chinese Academy of Sciences (stock code: 920186, stock abbreviation: ZhongKeYi) announced that the company intends to sell no more than 1 million shares of Piotech Co., Ltd. (stock code: 688072, stock abbreviation: Piotech) through competitive bidding and/or negotiated transfer in the secondary market, which does not exceed 0.35% of Piotech's current total share capital.

According to Tongbi Finance, ZhongKeYi was established in 2001, with its origins tracing back to the Shenyang Scientific Instrument Factory of the Chinese Academy of Sciences founded in 1958. It is a pioneer and main force in the field of vacuum technology in China. The company's main business includes the research and development, production, sales, and related technical services of dry vacuum pumps and vacuum scientific instruments and equipment. Its core products are widely used in the fields of integrated circuit wafer manufacturing, photovoltaic cells, and other semi-conductor areas, as well as national major scientific and technological infrastructure and research fields. The company is the largest manufacturer of dry vacuum pumps in terms of shipment volume in the domestic integrated circuit field and is the only domestic manufacturer that has achieved mass application in clean, medium, and harsh process links, with products fully meeting the requirements of 14nm advanced logic chips and 3D NAND memory processes with 128 layers and above.

ZhongKeYi stated that the sale of Piotech's equity is based on the company's operational needs, aligns with the company's strategic development plan, aims to enhance asset efficiency, and is in line with the company's long-term development strategy, with no harm to the interests of the company and its shareholders