Alteogen will conduct a 30% bonus share issuance, allocating 0.3 shares per share for both common shares and redeemable convertible preferred shares. Alteogen announced in a regulatory filing on the 16th that its board of directors convened and passed a resolution on the bonus share issuance plan. Accordingly, the Korea Exchange temporarily suspended trading of Alteogen's common shares from 3:31 p.m. until the close of the session on the same day to determine the reason for the bonus share issuance and establish the rights relationships.

[Key Schedule and Allocation for Bonus Share Issuance] The record date for the new share allocation is August 6, and new shares will be allocated to shareholders (excluding treasury shares) registered on the shareholder registry as of that date. The newly issued shares are scheduled to be listed on August 20. Fractional shares of less than one share allocated to shareholders will be paid in cash based on the closing price on the first day of trading of the new shares.

[New Issuance and Funding] According to this resolution, the newly issued shares will consist of 16,068,790 common shares and 122,037 other shares (redeemable convertible preferred shares). The new share allocation ratio is the same for both types at 0.3 shares per share. An amount of 8,095,413,500 won from the excess of paid-in capital will be used as the source of funds for the new share issuance.

• *[Changes in the Number of Issued Shares]**
• The changes in the number of shares following the completion of the bonus share issuance are as follows.
• Number of issued common shares excluding treasury shares: 53,562,635 shares → 69,631,425 shares
• Redeemable convertible preferred shares: 406,793 shares → 528,830 shares
• Total number of issued shares: 53,993,136 shares → 70,183,963 shares

Meanwhile, the Korea Exchange suspended trading of Alteogen's common shares from 3:31 p.m. until the close of the session on the same day to establish the rights relationships arising from the bonus share issuance.