[Dier Laser: sign 665 million yuan equipment purchase contract] June 5, Dier Laser announced that it signed an "equipment procurement contract" with customer A, with a total contract amount of 665 million yuan. As of the date of disclosure of this announcement, the total amount of daily sales contracts signed between the company and customer An and its subjects under the same control within 12 consecutive months is 976 million yuan, accounting for 73.72% of the company's audited main business income in 2022.