Completion report on merger, etc. (asset transfer)

What happened

Completion report on merger, etc. (asset transfer) Ilsung Construction Co., Ltd. To the Governor of the Financial Supervisory Service August 28, 2026 Company name: Ilsung Construction Co., Ltd. CEO: Baek Jong-tak Head office address: Jukjeon Ilsung Truel, 10 Yongguidae-ro 2469beon-gil, Bojeong-dong, Giheung-gu, Yongin-si, Gyeonggi-do Phone: 070-4077-4220; Website: http://www.ilsungconst.co.kr Person responsible for preparation: (Title) Deputy General Manager, (Name) Kim Il-jae, Phone: 02-3271-6000

I. Schedule This completion report relates to the material event report (decision to transfer tangible assets) dated May 26, 2026. As of the filing date, the purchase price has been paid and the ownership-transfer registration has been completed between the Company and the transferee, and the Company hereby reports that this transaction has effectively been completed.

1. Overview of the transaction Item | Details Asset type | Land and buildings Asset transferred | Land and buildings at 212 Choi-dong, Hanam-si and other lots Transferor | Ilsung Construction Co., Ltd. Transferee | Very Good Tile & Stone Co., Ltd. Transfer amount | 59,215,000,000 won Note: The above transfer amount is the purchase price under the real estate sale agreement, excluding incidental costs such as VAT, taxes and dues, and fees.

2. Key schedule Item | Details | Remarks External appraisal period | May 20, 2026 - May 26, 2026 | Daehyun Accounting Corporation Board resolution date | May 26, 2026 | Material event report filed Real estate sale agreement execution date | May 26, 2026 | - Purchase-price payment date | August 28, 2026 | - Registration filing date | August 28, 2026 | - Date of filing this completion report on merger, etc. | August 28, 2026 | -

II. Changes in the shareholding of the largest shareholder, etc. - Not applicable.

III. Exercise of appraisal (share purchase) rights - Not applicable.

IV. Matters concerning creditor protection - Not applicable.

V. Status of related litigation - Not applicable.

VI. Matters concerning the allotment of new shares, etc. - Not applicable.

VII. Summary financial information before and after the merger, etc. (unit: KRW millions) Item | Before transfer | Increase (decrease) | After transfer Current assets | 275,160 | - | 275,160 Non-current assets | 133,637 | (61,769) | 71,868 Total assets | 408,797 | (61,769) | 347,028 Current liabilities | 218,450 | - | 218,450 Non-current liabilities | 115,537 | (57,423) | 58,114 Total liabilities | 333,987 | (57,423) | 276,564 Capital stock | 27,012 | - | 27,012 Total equity | 74,810 | (4,346) | 70,464 Note: The above pre-transfer financial information is based on the consolidated financial statements as of June 30, 2026. Note: The above financial information merely reflects a simple addition or subtraction of the amounts related to this asset transfer, so the actual financial statements may differ depending on the results of the external auditor's audit or review.