Treasury share acquisition: results report

What happened

Treasury Share Acquisition: Results Report 6.0 BIT Computer Co., Ltd.

To: Governor of the Financial Supervisory Service Date: July 20, 2026 Company name: BIT Computer Co., Ltd. Representative directors: Cho Hyun-jung, Jeon Jin-ok Head office address: 33 Seocho-daero 74-gil, Seocho-gu, Seoul (Seocho-dong) Phone: 02-3486-1234 Website: http://www.bit.kr Preparer: Director Yoon Joong-gu, Phone: 02-3486-1234

1. Name and address of the issuer (a) Name: BIT Computer Co., Ltd. (b) Address: 33 Seocho-daero 74-gil, Seocho-gu, Seoul (Seocho-dong)

2. Matters concerning the acquisition report (a) Material event report filing date: June 22, 2026 (b) Acquisition period: June 23, 2026 to July 15, 2026 (based on the trade execution date)

3. Acquisition details (Unit: KRW, shares; all through IBK Securities, ID 00684918) 2026-06-23: order 24,000; acquired 24,000; price 3,985; amount 95,631,280 2026-06-24: order 24,000; acquired 19,000; price 3,814; amount 72,470,000 2026-06-25: order 24,000; acquired 18,742; price 3,898; amount 73,060,335 2026-06-26: order 24,000; acquired 24,000; price 3,827; amount 91,845,000 2026-06-29: order 24,000; acquired 6,020; price 3,923; amount 23,615,275 2026-06-30: order 24,000; acquired 19,482; price 4,026; amount 78,440,565 2026-07-01: order 24,000; acquired 6,489; price 4,127; amount 26,777,525 2026-07-02: order 24,000; acquired 16,945; price 4,075; amount 69,053,230 2026-07-03: order 24,000; acquired 4,045; price 4,038; amount 16,333,750 2026-07-06: order 24,000; acquired 15,056; price 4,111; amount 61,889,600 2026-07-07: order 24,000; acquired 19,000; price 4,175; amount 79,324,625 2026-07-08: order 24,000; acquired 21,803; price 4,070; amount 88,731,090 2026-07-09: order 24,000; acquired 24,000; price 4,044; amount 97,065,000 2026-07-10: order 24,000; acquired 943; price 4,120; amount 3,885,160 2026-07-13: order 24,000; acquired 24,000; price 4,118; amount 98,842,500 2026-07-14: order 5,500; acquired 5,500; price 3,963; amount 21,794,660 2026-07-15: order 323; acquired 323; price 3,990; amount 1,288,740 Total: order 365,823; acquired 249,348; average price 4,011; total amount 1,000,048,335 Note: dates based on the trade execution date; the price per share is an average price; figures exclude brokerage commissions.

4. Whether the planned acquisition matches the actual acquisition Planned acquisition amount (KRW): Common shares 1,000,048,500; Other shares: none Total acquisition amount (KRW): Common shares 1,000,048,335; Other shares: none Note: the Company completed the acquisition as close as possible to the planned amount stated in the material event report (treasury share acquisition decision) disclosed on June 22, 2026; the difference is attributable to per-share price rounding. Due to share-price movements during the acquisition period, a difference arose between the planned acquisition quantity (249,700 shares) and the actual acquisition quantity (249,348 shares).

5. Treasury share holdings after the acquisition [as of July 20, 2026] (Unit: KRW, shares, %) Holdings under Article 165-3 of the Act (A): quantity 2,221,802; ratio 13.4%; total value 11,269,020,227 Holdings under a trust agreement per Article 165-3 (B): none Total (A+B): quantity 2,221,802; ratio 13.4%; amount 11,269,020,227 Note: the quantity under (A) includes 26,621 treasury shares acquired in connection with fractional-share events; the total value under (A) is on a book-value basis including brokerage commissions.

6. Changes in the largest shareholder's shareholding before and after the acquisition [as of July 20, 2026] (Unit: shares) Name: Cho Hyun-jung; Share type: common shares; Shares as of the acquisition report date: 4,143,920; Shares as of the end of the acquisition period: 4,143,920; Reason for change: none Total: common shares 4,143,920 -> 4,143,920; grand total 4,143,920 -> 4,143,920