In April 2021, Shengxin Optoelectronic Technology (Zhejiang) Co., Ltd successfully completed the trial production and sample delivery of ytterbium-doped and erbium-doped optical fibers, and successively obtained the trial feedback from customers, attracting the attention of new investors. Mr. Zhou, the investor, and Mr. CAI signed an investment agreement in the Party Member's office. We roll up our sleeves and work hard!