Treasury share acquisition: results report

What happened

Treasury Share Acquisition Results Report / Webzen Co., Ltd.

To the Governor of the Financial Supervisory Service July 8, 2026 Company name: Webzen Co., Ltd. CEO: Kim Tae-young Head office: 242 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do Phone: 031-627-6600; Website: http://company.webzen.com Preparer: Title Division Head, Name Kim Nan-hee, Phone 031-627-6600

1. Name and address of issuer a. Name: Webzen Co., Ltd. b. Address: 242 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do

2. Acquisition report details a. Material event report filing date: June 10, 2026 b. Acquisition period: June 11, 2026 to July 3, 2026 (based on execution/trade date)

3. Acquisition details (Unit: KRW, shares) - date / order qty / acquired qty / price per share / total value / broker (ID): June 11, 2026: order 110,000, acquired 110,000; KRW 10,912/share; total KRW 1,200,384,190; Samsung Securities (00104856) June 15, 2026: order 110,000, acquired 110,000; KRW 11,924/share; total KRW 1,311,648,020; Samsung Securities (00104856) June 17, 2026: order 110,000, acquired 110,000; KRW 12,068/share; total KRW 1,327,452,090; Samsung Securities (00104856) June 19, 2026: order 110,000, acquired 110,000; KRW 11,641/share; total KRW 1,280,564,385; Samsung Securities (00104856) June 23, 2026: order 110,000, acquired 110,000; KRW 11,474/share; total KRW 1,262,177,660; Samsung Securities (00104856) June 24, 2026: order 110,000, acquired 110,000; KRW 11,787/share; total KRW 1,296,582,120; Samsung Securities (00104856) June 26, 2026: order 110,000, acquired 110,000; KRW 11,441/share; total KRW 1,258,545,650; Samsung Securities (00104856) June 29, 2026: order 50,000, acquired 50,000; KRW 11,982/share; total KRW 599,096,980; Samsung Securities (00104856) June 30, 2026: order 50,000, acquired 50,000; KRW 11,687/share; total KRW 584,348,260; Samsung Securities (00104856) July 1, 2026: order 30,000, acquired 30,000; KRW 11,995/share; total KRW 359,842,600; Samsung Securities (00104856) July 3, 2026: order 38,667, acquired 38,289; KRW 11,553/share; total KRW 442,351,120; Samsung Securities (00104856) Total: order 938,667, acquired 938,289; average price KRW 11,641/share; total KRW 10,922,993,075

(Note 1) The "date" above is based on the execution (trade) date. (Note 2) The "price per share" and "total acquisition value" do not include fees.

4. Whether the planned acquisition matches the actual acquisition Common shares: planned amount KRW 10,923,000,000, other -; actual total value KRW 10,922,993,075, other -; shortfall: -; reason: - (Note 1) The Company completed the acquisition within the planned amount stated in its Material Event Report (Treasury Share Acquisition Decision); the difference between the planned amount and the actual total value is less than one share's acquisition price.

5. Treasury shares held after acquisition [as of July 8, 2026] (Unit: KRW million, shares, %) Common shares: (A) quantity 2,838,049, ratio 9.16%, total value KRW 38,612 million; (B) -; Total (A+B): quantity 2,838,049, ratio 9.16%, amount KRW 38,612 million Total: quantity 2,838,049, ratio 9.16%, total value KRW 38,612 million; Total (A+B): quantity 2,838,049, ratio 9.16%, amount KRW 38,612 million (Note 1) The "total value" above is based on book value.

6. Changes in the largest shareholder's shareholding before and after acquisition [as of July 3, 2026] Kim Byung-gwan: Common shares; before 9,900,791; after 9,900,791; reason for change: - Total: 9,900,791; 9,900,791; - (Note 1) The record date and acquisition end date above are based on the execution (trade) date.