Treasury share acquisition: results report

What happened

Treasury Share Acquisition: Results Report 6.0 Withtech Co., Ltd. Treasury Share Acquisition: Results Report To the Governor of the Financial Supervisory Service August 14, 2026

Company name: Withtech Co., Ltd. Representative directors: Yoo Seung-gyo, Park Hyun-yeol Head office address: 300 Techno 2-ro, Yuseong-gu, Daejeon (Phone) 042-939-7117 (Website) http://www.withtech.co.kr Preparer: (Title) Representative director (Name) Yoo Seung-gyo (Phone) 042-936-7117

1. Name and address of the issuer a. Name: Withtech Co., Ltd. b. Address: 300 Techno 2-ro, Yuseong-gu, Daejeon

2. Details of the acquisition report a. Date the material event report was filed: July 13, 2026 b. Acquisition period: from July 14, 2026 to August 11, 2026

3. Acquisition details (Unit: KRW, shares). All trades below were executed through Hana Securities (financial investment business ID 00113465). 2026-07-14: common stock; order quantity 10,000; acquired 10,000; price per share KRW 8,990; total KRW 89,900,000 2026-07-15: common stock; order quantity 10,000; acquired 10,000; price per share KRW 9,650; total KRW 96,505,250 2026-07-16: common stock; order quantity 10,000; acquired 10,000; price per share KRW 9,560; total KRW 95,602,330 2026-07-20: common stock; order quantity 10,000; acquired 9,740; price per share KRW 9,173; total KRW 89,348,250 2026-07-21: common stock; order quantity 10,000; acquired 10,000; price per share KRW 9,458; total KRW 94,584,120 2026-07-22: common stock; order quantity 10,000; acquired 10,000; price per share KRW 9,635; total KRW 96,350,000 2026-07-23: common stock; order quantity 10,000; acquired 7,500; price per share KRW 9,641; total KRW 72,309,750 2026-07-24: common stock; order quantity 10,000; acquired 10,000; price per share KRW 9,459; total KRW 94,594,030 2026-07-27: common stock; order quantity 12,000; acquired 12,000; price per share KRW 9,170; total KRW 110,047,390 2026-07-28: common stock; order quantity 20,000; acquired 20,000; price per share KRW 8,444; total KRW 168,881,280 2026-07-29: common stock; order quantity 10,000; acquired 10,000; price per share KRW 7,972; total KRW 79,720,780 2026-07-30: common stock; order quantity 10,000; acquired 10,000; price per share KRW 7,783; total KRW 77,832,340 2026-07-31: common stock; order quantity 20,000; acquired 11,296; price per share KRW 8,470; total KRW 95,677,900 2026-08-03: common stock; order quantity 10,000; acquired 10,000; price per share KRW 8,603; total KRW 86,039,650 2026-08-04: common stock; order quantity 15,000; acquired 13,045; price per share KRW 8,680; total KRW 113,232,020 2026-08-05: common stock; order quantity 15,000; acquired 15,000; price per share KRW 8,966; total KRW 134,491,920 2026-08-06: common stock; order quantity 15,000; acquired 15,000; price per share KRW 8,984; total KRW 134,762,650 2026-08-07: common stock; order quantity 15,000; acquired 15,000; price per share KRW 9,025; total KRW 135,376,790 2026-08-10: common stock; order quantity 12,000; acquired 12,000; price per share KRW 9,468; total KRW 113,626,810 2026-08-11: common stock; order quantity 1,900; acquired 1,900; price per share KRW 10,058; total KRW 19,110,270

Total: order quantity 235,900; acquired 222,481; average price per share KRW 8,981; total acquisition amount KRW 1,997,993,530

Note 1) The above "date" is based on trade execution dates, and the "price per share" is the average price. Note 2) The "price per share" and "total acquisition amount" exclude brokerage fees.

4. Whether the planned acquisition matches the actual acquisition Planned acquisition amount (KRW): common stock 1,998,000,000; other stock - Total acquisition amount (KRW): common stock 1,997,993,530; other stock - Whether the planned amount was not reached: No Reason if not reached: -

Note 1) The company completed the treasury share acquisition as close as possible to the planned acquisition amount stated in the material event report (decision to acquire treasury shares). The difference between the planned acquisition amount and the total acquisition amount is less than the price of one share. Note 2) Due to share price movements during the treasury share acquisition period, a difference arose between the planned number of shares to be acquired stated in the material event report (222,000 shares) and the actual number of shares acquired (222,481 shares).

5. Status of treasury shares, etc. held after the acquisition [as of August 14, 2026] (Unit: KRW, shares, %) Common stock: Holdings under Article 165-3 of the Act (A) - quantity 222,481, ratio 2.28%, total value KRW 1,997,993,530; Holdings under a trust agreement under Article 165-3 of the Act (B) - quantity -, ratio -, contract amount -; Total (A+B) - quantity 222,481, ratio 2.28%, amount KRW 1,997,993,530 Total: quantity 222,481, ratio 2.28%, total value KRW 1,997,993,530 (A); - (B); quantity 222,481, ratio 2.28%, amount KRW 1,997,993,530 (A+B)

Note 1) The above "ratio" is calculated against total shares outstanding of 9,773,600 shares. Note 2) The above "total value" does not include brokerage fees.

6. Changes in the largest shareholder's shareholding before and after the acquisition [as of August 14, 2026] (Unit: shares) Name: Yoo Seung-gyo; Type of share: Common stock; Shares at acquisition report date: 5,615,840; Shares at acquisition end date: 5,615,840; Reason for change: - Total: Common stock; 5,615,840; 5,615,840; - Other stock: -; -; - Grand total: 5,615,840; 5,615,840; -