Treasury share disposal: results report

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Treasury share disposal results report 6.2 Keum Kang Steel Co., Ltd.

Treasury Share Disposal Results Report

To the Commissioner of the Financial Supervisory Service July 29, 2026

Company name: Keum Kang Steel Co., Ltd. Representative director: Joo Seong-ho Head office address: 701, 19 Seoun-ro, Seocho-gu, Seoul (Tel) 02-3471-0001 (Website) http://www.kksteel.co.kr Preparer in charge: (Title) President (Name) Kim Ju-an (Tel) 02-3471-0001

1. Name and address of the issuer (a) Name: Keum Kang Steel Co., Ltd. (b) Address: 701, 19 Seoun-ro, Seocho-gu, Seoul

2. Details of the disposal report (a) Filing date of the material event report: July 23, 2026 (b) Disposal period: from July 24, 2026 to July 24, 2026 (c) Type and number of shares reported for disposal: Keum Kang Steel Co., Ltd. common shares, 514,000 shares

3. Disposal details (unit: KRW, shares) Date: 2026-07-24; Type: Common shares; Order quantity: 320,000; Disposal quantity: 320,000; Disposal price per share: 4,690; Total disposal amount: 1,500,800,000; Disposal counterparty: Seun Steel Co., Ltd.; Selling brokerage: Korea Investment & Securities; Financial investment business entity ID: 00160144 Date: 2026-07-24; Type: Common shares; Order quantity: 89,000; Disposal quantity: 89,000; Disposal price per share: 4,690; Total disposal amount: 417,410,000; Disposal counterparty: Lee Hye-geun; Selling brokerage: Korea Investment & Securities; Financial investment business entity ID: 00160144 Date: 2026-07-24; Type: Common shares; Order quantity: 105,000; Disposal quantity: 105,000; Disposal price per share: 4,690; Total disposal amount: 492,450,000; Disposal counterparty: Seowoo Technology Co., Ltd.; Selling brokerage: Korea Investment & Securities; Financial investment business entity ID: 00160144 Total: -; Order quantity: 514,000; Disposal quantity: 514,000; Disposal price per share: -; Total disposal amount: 2,410,660,000; Disposal counterparty: -; Selling brokerage: -; Financial investment business entity ID: -

4. Whether the disposal report matches the actual disposal Planned disposal shares (shares) - Common shares: 514,000; Other shares: - Actual total disposal shares (shares) - Common shares: 514,000; Other shares: - Match: Match Reason for any difference: -

5. Treasury share holdings after disposal [as of July 29, 2026] (unit: KRW, shares, %) Share type: Common shares Holdings under Article 165-3 of the Act (A): Quantity 486,000; Ratio 2.60; Total value 746,331,374 Holdings under trust agreements etc. under Article 165-3 of the Act (B): Quantity 85,774; Ratio 0.46; Contract amount 2,000,000,000 Total (A+B): Quantity 571,774; Ratio 3.06; Amount 2,746,331,374

Share type: Common shares Holdings under Article 165-3 of the Act (A): Quantity 1,917,806; Ratio 10.24; Total value 8,840,059,270 Holdings under trust agreements etc. under Article 165-3 of the Act (B): Quantity -; Ratio -; Contract amount - Total (A+B): Quantity 1,917,806; Ratio 10.24; Amount 8,840,059,270

Total: Holdings under Article 165-3 of the Act (A): Quantity 2,403,806; Ratio 12.84; Total value 9,586,390,644 Holdings under trust agreements etc. under Article 165-3 of the Act (B): Quantity 85,774; Ratio 0.46; Contract amount 2,000,000,000 Total (A+B): Quantity 2,489,580; Ratio 13.30; Amount 11,586,390,644