What are the listed companies of ceramic semiconductors?

Ceramic semiconductor listed companies are as follows:

1. Bomin Electronics Co., Ltd. (formerly Meizhou Bomin Electronics Co., Ltd.) was established in 2005, and the company was listed on the Shanghai Stock Exchange on 20 15 and 12.

2. China Porcelain Electronics was established in 2009 and listed on Shenzhen Stock Exchange, 202 1. The company is mainly engaged in the research and development, production and sales of electronic ceramics series products.