[Amended] Treasury share acquisition: results report

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Treasury Share Acquisition: Results Report 6.0 Bonne Co., Ltd.

Amendment Report (Disclosure) Date: July 20, 2026

1. Disclosure document being amended: Treasury Share Acquisition: Results Report 2. Original filing date of the disclosure document being amended: July 15, 2026 3. Amended items: Item: Treasury Share Acquisition: Results Report - Reason: to add a footnote correcting an error in the original report. After - new footnote added to "3. Acquisition details," Note 4: "The above acquisition details are made under a treasury-share-acquisition trust agreement. Because the trust agreement has not yet terminated, the Company has not yet taken delivery of the treasury shares acquired, so this disclosure is being refiled, in amended form, as a 'Status Report on Acquisition under a Trust Agreement.' Once the trust agreement terminates and delivery of the treasury shares is completed, the Company will file a 'Material Event Report (Decision to Terminate the Treasury-Share-Acquisition Trust Agreement)' and a 'Results Report on Termination of the Trust Agreement' in accordance with the relevant regulations."

Treasury Share Acquisition: Results Report To: Governor of the Financial Supervisory Service Date: July 20, 2026 Company name: Bonne Co., Ltd. Representative director: Kang Eun-sil Head office address: Bonne Building, 14 Seolleung-ro 90-gil, Gangnam-gu, Seoul (Daechi-dong) Phone: 02-6423-4350 Website: http://www.bonne.co.kr Preparer: Executive Vice President Nam Byung-su, Phone: 02-6423-4350

1. Name and address of the issuer (a) Name: Bonne Co., Ltd. (b) Address: Bonne Building, 14 Seolleung-ro 90-gil, Gangnam-gu, Seoul (Daechi-dong)

2. Matters concerning the acquisition report (a) Material event report filing date: April 14, 2026 (b) Acquisition period: April 17, 2026 to July 3, 2026

3. Acquisition details (Unit: KRW, shares; all through Eugene Investment & Securities, ID 00131054) 2026-04-17: order 30,000; acquired 30,000; price 666; amount 19,986,772 2026-04-20: order 30,000; acquired 30,000; price 664; amount 19,923,254 2026-04-21: order 30,000; acquired 30,000; price 648; amount 19,464,644 2026-04-22: order 30,000; acquired 30,000; price 635; amount 19,079,432 2026-04-23: order 30,000; acquired 30,000; price 627; amount 18,818,704 2026-04-29: order 40,000; acquired 40,000; price 686; amount 27,444,187 2026-04-30: order 40,000; acquired 37,330; price 632; amount 23,620,159 2026-05-29: order 80,000; acquired 60,001; price 2,375; amount 142,539,390 2026-06-01: order 40,000; acquired 40,000; price 2,333; amount 93,345,160 2026-06-02: order 40,000; acquired 40,000; price 2,161; amount 86,448,910 2026-06-04: order 40,000; acquired 5,100; price 2,291; amount 11,685,975 2026-06-05: order 40,000; acquired 10,000; price 2,208; amount 22,087,985 2026-06-08: order 40,000; acquired 36,360; price 2,034; amount 73,975,490 2026-06-09: order 40,000; acquired 0; price 0; amount 0 2026-06-10: order 30,000; acquired 15,000; price 2,273; amount 34,102,525 2026-06-11: order 30,000; acquired 15,000; price 2,425; amount 36,387,165 2026-06-12: order 20,000; acquired 10,000; price 2,509; amount 25,091,370 2026-06-16: order 20,000; acquired 15,000; price 2,371; amount 35,571,760 2026-06-17: order 20,000; acquired 20,000; price 2,293; amount 45,876,275 2026-06-18: order 20,000; acquired 15,000; price 2,354; amount 35,314,899 2026-06-19: order 20,000; acquired 15,000; price 2,324; amount 34,871,785 2026-06-22: order 20,000; acquired 20,000; price 2,321; amount 46,424,420 2026-06-23: order 15,000; acquired 14,208; price 2,180; amount 30,984,340 2026-06-24: order 15,000; acquired 12,054; price 2,141; amount 25,817,260 2026-06-25: order 10,000; acquired 10,000; price 2,011; amount 20,115,000 2026-06-30: order 20,600; acquired 20,601; price 1,997; amount 41,150,678 2026-07-01: order 4,000; acquired 4,000; price 2,074; amount 8,298,605 2026-07-02: order 730; acquired 730; price 2,059; amount 1,503,605 2026-07-03: order 17; acquired 17; price 1,980; amount 33,660 Total: order 795,347; acquired 605,401; average price 2,361; total amount 999,963,409

Note 1) The Company completed a share consolidation on May 27, 2026, and trading was accordingly suspended from May 4, 2026 to May 26, 2026. Note 2) Purchases from April 17, 2026 through April 30, 2026 are stated on a pre-consolidation basis; acquisitions after that date are stated on a post-consolidation basis. Note 3) Treasury shares acquired before the consolidation totaled 227,330 shares, equivalent to 45,466 shares after applying the 5:1 consolidation ratio. Including this amount, the final quantity of treasury shares acquired after reflecting the consolidation is 423,537 shares. Note 4) [see amendment footnote above regarding the trust agreement]

4. Whether the planned acquisition matches the actual acquisition Planned acquisition amount (KRW): Common shares 1,000,000,000; Other shares: none Total acquisition amount (KRW): Common shares 999,963,409; Other shares: none Note 1) The Company completed the acquisition within the planned amount stated in its material event report. Note 2) The KRW 36,230 difference between the planned amount and the total acquisition amount is the trading commission. Note 3) After excluding the commission, the remaining KRW 361 difference is attributable to per-share price rounding. Note 4) The above acquisition details are transactions under the trust agreement.

5. Treasury share holdings after the acquisition [as of July 15, 2026] (Unit: KRW, shares, %) Holdings under Article 165-3 of the Act (A): quantity 8; ratio 0.00%; total value 4,000 Holdings under a trust agreement per Article 165-3 (B): quantity 423,537; ratio 5.05%; contract amount 999,963,409 Total (A+B): quantity 423,545; ratio 5.05%; amount 999,967,409 Note 1) The above ratios are calculated against total issued shares of 8,390,484 as of the filing date; the total value and amount exclude brokerage commissions.

6. Changes in the largest shareholder's shareholding before and after the acquisition [as of July 15, 2026] (Unit: shares) Name: Lim Sung-ki; Share type: common shares; Shares as of the acquisition report date: 1,790,123; Shares as of the end of the acquisition period: 1,790,123; Reason for change: none Total: common shares 1,790,123 -> 1,790,123; grand total 1,790,123 -> 1,790,123 Note 1) The pre-consolidation share count was 8,950,615; after the 5:1 consolidation it became 1,790,123 shares, unchanged in substance.