Inquiry under the photoelectric opening network of the exhibition on October 28, 2020.

Heizhan Optoelectronics has no old shares to transfer. According to the funds raised in the prospectus, it is estimated that the offering price of Yuanzhan Optoelectronics is 23.58 yuan, with an estimated price-to-earnings ratio of 22.99 times, which is lower than the one-month average price-to-earnings ratio of 50.35 times for the computer, communications and other electronic equipment manufacturing industry, and below the red line of 23 times earnings. The stock allotment targets designated by the investors who intend to participate in this issue shall be based on the two trading days before the initial inquiry of this issue, October 26, 2020 (T6). The daily average market value of unrestricted A shares and unrestricted depositary receipts in Shenzhen market shall be more than 60 million yuan (inclusive), and inquiry users who do not meet the requirements cannot participate in the preliminary inquiry. Taking into account the initial number of offerings and Haitong's valuation of the issuer, the lead underwriter sets the minimum number of shares to be purchased by offline investors as 900000 shares, and the minimum unit of change in the number of shares to be purchased as 100000 shares, that is, the number of shares to be applied for for more than 900000 shares designated by offline investors must be an integer multiple of 100000 shares. The number of shares applied for by each placing object shall not exceed 2.5 million shares.