On the evening of March 22, the website of the Shanghai Stock Exchange showed that it had received the refinancing application of Rayitek Hi-Tech Film Company Ltd.Shenzhen(688323) , a listed company on the science and technology innovation board Rayitek Hi-Tech Film Company Ltd.Shenzhen(688323) the refinancing method is public issuance of convertible bonds, and the total amount of funds to be raised shall not exceed 430 million yuan.