[lunchtime announcement: Lucky New Materials and Shanghai Tieyin signed a contract for the sale of base paper materials with magnetic cards] FYF, May 31, a number of companies issued lunchtime announcements, as follows: ① Lucky New material: the company recently signed a "magnetic card ticket base paper material sales contract" with Shanghai Tieyin, a printing enterprise under the National Railway Group, agreeing that Shanghai Tieyin will purchase about 16.8894 million yuan (excluding tax) of thermal magnetic ticket products from the company. From 2021 to now, the company's sales revenue from selling thermal magnetic tickets to Shanghai Tieyin totaled 42.8335 million yuan, accounting for 81.19% of the company's similar business sales revenue. ② United Optoelectronics: gong Junqiang, the company's largest shareholder and actual controller, pledged his 1.5 million shares (0.56% of the company's total share capital). New material for Prince ③: the application for issuing shares to specific targets will be accepted by Shenzhen Stock Exchange. ④ Guoguang Electric Appliance: the application for issuing shares to specific objects will be accepted by Shenzhen Stock Exchange.