Change of largest shareholder

What happened

Ilyang Pharmaceutical / Change of Largest Shareholder / (2026.07.30) Change of Largest Shareholder

Change of Largest Shareholder

1. Change details Largest shareholder before change: Jeong Do-eon and 7 others; shares held: 5,150,673; ownership ratio: 26.98% Largest shareholder after change: Jeong Yu-seok and 7 others; shares held: 5,150,673; ownership ratio: 26.98%

2. Reason for change: Change of largest shareholder due to a gift from the existing largest shareholder - Donor: Jeong Do-eon, 1,700,000 shares - Recipient: Jeong Yu-seok, 1,700,000 shares

3. Purpose of the equity acquisition: - Method of funding the acquisition: - Plan to appoint or dismiss officers after the acquisition: -

4. Change date: 2026-07-30 5. Change confirmation date: 2026-07-30

6. Other matters material to investment decisions - This disclosure concerns a change of largest shareholder resulting from a gift between the existing largest shareholder and a related party; there is no change in the number of shares held, the number of persons, or the composition of the largest-shareholder group. - The ownership ratio above is the share of the total voting shares issued. - The change date and change confirmation date above are the date of the name transfer and the inter-account transfer resulting from the gift. ※ Related disclosure: 2026-07-30 Report on Change in Shares Held by the Largest Shareholder, etc. (upon change of largest shareholder)

Detailed change breakdown: Jeong Do-eon: relationship: largest shareholder before the change; shares before: 4,167,844 (21.84%); shares after: 2,467,844 (12.93%); note: the former largest shareholder himself Jeong Yu-seok: relationship: largest shareholder after the change; shares before: 808,777 (4.24%); shares after: 2,508,777 (13.14%); note: son of the former largest shareholder Jeong Hui-seok: relationship: related party of the largest shareholder after the change; shares before: 64,706 (0.34%); shares after: 64,706 (0.34%); note: - Jeong Yeong-jun: relationship: related party of the largest shareholder after the change; shares before: 11,694 (0.06%); shares after: 11,694 (0.06%); note: - Jeong Jae-hyeong: relationship: related party of the largest shareholder after the change; shares before: 66,693 (0.35%); shares after: 66,693 (0.35%); note: - Jeong Jae-hun: relationship: related party of the largest shareholder after the change; shares before: 25,011 (0.13%); shares after: 25,011 (0.13%); note: - Jeong Se-o: relationship: related party of the largest shareholder after the change; shares before: 5,848 (0.03%); shares after: 5,848 (0.03%); note: - Jeong Ji-in: relationship: related party of the largest shareholder after the change; shares before: 100 (0.00%); shares after: 100 (0.00%); note: -