Material event report (decision to redeem own convertible bonds early)

What happened

Route K Co., Ltd. Material event report / Exchange disclosure obligation matter To the Financial Services Commission / Korea Exchange August 28, 2026 Company name: Route K Co., Ltd. CEO: Kim Yong-woon Head office address: 70 Techno sunhwan-ro 1-gil, Yuga-eup, Dalseong-gun, Daegu Phone: 053-582-8036; Website: http://www.abprobio.co.kr Person responsible for preparation: (Title) Director, (Name) Kwon Hyeong-seok, Phone: 053-582-8036

Decision to redeem own convertible bonds before maturity 1. Type of bond: Series 19; registered coupon-bearing unsecured private-placement convertible bonds 2. Bond issue date: April 30, 2026 3. Bond issuance method: Private placement 4. Bond maturity date: April 30, 2029 5. Total face value (electronically registered) of the bonds (KRW): 2,000,000,000 6. Face value (electronically registered amount) of the bonds to be acquired (KRW): 500,000,000 7. Acquisition decision date: August 28, 2026 8. Acquisition amount: Amount (KRW) 500,000,000; basis of calculation - principal payment (scheduled) date August 28, 2026; source of acquisition funds - own funds 9. Acquisition method: Over-the-counter purchase 10. Reason for acquisition before maturity: Separate agreement with the bondholders 11. Future handling plan: The acquired bonds are planned to be resold to a third party or retired 12. Matters concerning conversion: Conversion ratio (%) 1.15; conversion price as of the report date (KRW/share) 2,648; type of shares to be issued upon conversion: Route K Co., Ltd. registered common stock; number of shares 188,821; ratio to total shares (%) 1.15; conversion request period - start date April 30, 2027, end date March 30, 2029 13. Remaining face value (electronically registered amount) of the bonds after acquisition (KRW): 1,500,000,000 14. Whether subject to Fair Trade Commission reporting: Not applicable 15. Other matters for investors' reference - The conversion price per share above reflects an adjustment due to a par-value consolidation (from 500 won to 1,000 won). - The above bond acquisition amount is the actual amount paid, applying a coupon rate of 0%. - The above acquisition date is the payment date of the bond acquisition amount.

[Matters concerning the seller] Seller name | Relationship to the Company or largest shareholder | Basis for selection | Transactions/plans within 6 months before and after the acquisition decision | Face value of bonds sold (KRW) | Remarks Baek Jae-wook | - | Bondholder | - | 250,000,000 | - Baek Min-wook | - | Bondholder | - | 250,000,000 | -