Completion report on merger, etc. (asset transfer)

What happened

Report on Completion of Merger, etc. (Asset Transfer) / Mirae Industry Co., Ltd.

To the Governor of the Financial Supervisory Service July 9, 2026 Company name: Mirae Industry Co., Ltd. CEO: Lee Chang-jae Head office: 65 Baekseokgongdan 7-ro, Seobuk-gu, Cheonan-si, Chungcheongnam-do (Baekseok-dong) Phone: 041-621-5070; Website: http://www.mirae.co.kr Preparer: Title President, Name Kim Kyung-tae, Phone 041-621-0570

I. Schedule This completion report concerns the Material Event Report (Decision to Acquire Shares and Equity Securities of Another Company) dated June 8, 2026. The total share acquisition amount is KRW 20,402,147,200, and as of July 9, 2026, payment of the acquisition price and the share transfer were completed, concluding this transaction.

1. Acquisition details Issuing company: Alloys Co., Ltd. Counterparties: Shin Jeong-gwan, Lee Si-young, Kwon Chung-sik Transaction method: Over-the-counter purchase

Details of shares acquired (counterparty / number of shares / price per share (KRW) / transaction amount (KRW)): Shin Jeong-gwan: 4,295,460 shares; KRW 1,600 per share; KRW 6,872,736,000 Lee Si-young: 2,699,530 shares; KRW 1,600 per share; KRW 4,319,248,000 Kwon Chung-sik: 5,756,352 shares; KRW 1,600 per share; KRW 9,210,163,200 Total: 12,751,342 shares; KRW 1,600 per share; KRW 20,402,147,200

Note: Kwon Chung-sik paid the full transaction amount on the transaction date of June 8, 2026, and that transaction closed on June 8, 2026; Shin Jeong-gwan and Lee Si-young closed their transactions on July 9, 2026 upon payment of the balance.

Acquisition amount (KRW): 20,402,147,200

2. Progress and schedule External valuation period: June 4, 2026 - June 5, 2026 Board resolution date: June 8, 2026 Share purchase agreement execution date: June 8, 2026 Material event report filing date: June 8, 2026 Transaction closing date: July 9, 2026

II. Changes in equity holdings of the largest shareholder, etc.: Not applicable.

III. Exercise of appraisal rights: Not applicable.

IV. Creditor protection matters: Not applicable.

V. Status of related litigation: Not applicable.

VI. Matters relating to new share allotment, etc.: Not applicable.

VII. Summary financial information before and after the [merger, etc.] (Unit: KRW thousand)

Assets Current assets: before 69,862,478; change (20,402,147); after 49,460,331 Non-current assets: before 93,046,839; change 20,402,147; after 113,448,986 Total assets: before 162,909,317; change -; after 162,909,317

Liabilities Current liabilities: before 28,687,326; change -; after 28,687,326 Non-current liabilities: before 8,570,444; change -; after 8,570,444 Total liabilities: before 37,257,770; change -; after 37,257,770

Equity Capital stock: before 2,241,327; change -; after 2,241,327 Total equity: before 125,651,547; change -; after 125,651,547

Note: The summary financial information before the asset transfer above was prepared based on the separate financial statements in the Company's most recently filed Q1 2026 report, and the summary financial information after the asset transfer simply adds/subtracts only the amount related to this asset acquisition, so it may differ from actual financial information.