Completion report on merger, etc. (merger)

What happened

Completion Report on Merger, etc. (Merger), submitted to the Governor of the Financial Supervisory Service, dated August 5, 2026. Company: Sonokong Co., Ltd. CEO: Cha Hyun-il. Head office: Rm 305, Bldg. 101, 223 Sinheung-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do. Tel: 02-561-8550. Website: http://www.sonokong.co.kr. Preparer: Head of Management Support Division An Gyeong-won, Tel: 02-2610-8750.

I. Schedule Board resolution to merge: June 1, 2026. Material event report filed: June 1, 2026. Public notice of shareholder-confirmation record date: June 1, 2026 (on the company's website). Merger agreement date: June 2, 2026. Shareholder-confirmation record date: June 16, 2026. Public notice of small-scale merger: June 16, 2026 (on the company's website). Register-of-shareholders closure period: not applicable. Period for receiving notices of dissent to the merger: start June 16, 2026, end June 30, 2026. Board resolution approving the merger (in lieu of a shareholders' meeting): July 1, 2026. Public notice to creditors to raise objections: July 1, 2026 (on the company's website). Creditor-objection period: start July 1, 2026, end August 3, 2026. Merger effective date: August 4, 2026. Board meeting for the merger completion report (in lieu of a shareholders' meeting): August 5, 2026. Public notice of merger completion report: August 5, 2026 (on the company's website). Expected merger registration date: August 6, 2026.

II. Change in shareholding of the largest shareholder, etc. Sonokong Co., Ltd. (the surviving company) owns 100% of the issued shares of Sonokong IB Co., Ltd. (the dissolved company), and this merger was carried out as a no-new-shares merger (no merger new shares issued). Accordingly, there is no change in the shareholding of Sonokong's largest shareholder, etc. after completion of the merger.

III. Exercise of appraisal rights This merger was carried out as a small-scale merger procedure under Commercial Act Article 527-3, and no appraisal rights were granted. Under that article, notices of dissent to the small-scale merger were received from June 16, 2026 to June 30, 2026; a total of 345 shareholders notified dissent to this merger, representing 132,766 shares in total (0.99% of total shares outstanding).

IV. Creditor protection Sonokong Co., Ltd. (the surviving company) and Sonokong IB Co., Ltd. (the dissolved company) published a public notice for creditors to raise objections on July 1, 2026; no creditor raised an objection by the close of the objection period on August 3, 2026.

V. Status of related litigation As of this report's filing date, no litigation has been brought that could affect the validity of this merger.

VI. New-share allotment Not applicable, as this merger was carried out as a no-new-shares merger with no new shares issued.

VII. Summary financial information before and after the merger (as of March 31, 2026) (unit: KRW): Before the merger, Sonokong Co., Ltd. (surviving company): current assets 23,646,535,361; non-current assets 52,477,516,369; total assets 76,124,051,730; current liabilities 30,016,676,409; non-current liabilities 20,187,459,466; total liabilities 50,204,135,875; capital stock 33,466,582,000; capital surplus 75,310,699,936; retained earnings (deficit) (82,610,751,031); treasury stock (246,615,050); total equity 25,919,915,855; total liabilities and equity 76,124,051,730. Sonokong IB Co., Ltd. (dissolved company): current assets 4,612,951,662; non-current assets 22,200,000,000; total assets 26,812,951,662; current liabilities 654,908,843; non-current liabilities none; total liabilities 654,908,843; capital stock 990,000,000; capital surplus none; retained earnings 25,168,042,819; treasury stock none; total equity 26,158,042,819; total liabilities and equity 26,812,951,662. After the merger (estimated), Sonokong Co., Ltd. (surviving company): current assets 22,157,841,309; non-current assets 52,477,516,369; total assets 74,635,357,678; current liabilities 3,359,939,538; non-current liabilities 20,187,459,466; total liabilities 23,547,399,004; capital stock 33,466,582,000; capital surplus 75,310,699,936; retained earnings (deficit) (57,442,708,212); treasury stock (246,615,050); total equity 51,087,958,674; total liabilities and equity 74,635,357,678. Note 1: The above summary statements of financial position were prepared based on the most recent available separate financial statements of Sonokong Co., Ltd. and Sonokong IB Co., Ltd. as of March 31, 2026, as of this report's filing date, and may differ from the statements of financial position to be prepared as of the actual merger effective date (August 4, 2026). Note 2: The post-merger financial statements above have not been audited (reviewed) by the external auditor and may change based on the external auditor's audit (review).