Zhongying Technology co., LTD. (300936) answers investors' questions on September 15, 2021: its main product high-frequency copper clad plate production in 2020 will be 539,500 pieces, generating operating revenue of about 206 million yuan, accounting for 97.98% of the total sales revenue in 2020. In addition, according to the information disclosed in the prospectus when Zhongying Science and Technology went public in January 2021, its listing financing was about 510 million yuan, of which 190 million yuan was used to build a new annual output of 300,000 square meters OF PTFE high frequency copper-clad plate project should be put into production on August 23, 2021. As of Feb 19, 2022, the company has not disclosed the latest progress of the project.