Treasury share acquisition: results report

What happened

Treasury Share Acquisition Results Report 6.0 Narae Nanotech Co., Ltd. Treasury Share Acquisition Results Report To the Governor of the Financial Supervisory Service July 22, 2026 Company name: Narae Nanotech Co., Ltd. CEO: Kim Min-ho, Kim Chu-ho Head office address: 250 Baekokdae-ro, Idong-eup, Cheoin-gu, Yongin-si, Gyeonggi-do Phone: 031-337-2600; Website: http://www.naraenano.co.kr Preparer: Position Head of Management Division, Name Lee Sang-rok, Phone 031-337-2600

1. Name and Address of the Issuer (a) Name: Narae Nanotech Co., Ltd. (b) Address: 250 Baekokdae-ro, Idong-eup, Cheoin-gu, Yongin-si, Gyeonggi-do

2. Acquisition Report Details (a) Date of filing of the material event report: June 16, 2026 (b) Acquisition period: from June 18, 2022 (as stated in the filing) to July 16, 2026 Note: the trade data below begin on June 18, 2026; the start year above appears to be a typo in the source filing (as stated in the filing). The above dates are based on the trade execution date.

3. Acquisition Details (Unit: KRW, shares) 2026-06-18: Type Common shares; Order quantity 20,000; Acquired quantity 5,026; Acquisition price per share 5,183; Total acquisition amount 26,051,420; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-06-19: Type Common shares; Order quantity 20,000; Acquired quantity 19,821; Acquisition price per share 5,165; Total acquisition amount 102,393,520; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-06-22: Type Common shares; Order quantity 20,000; Acquired quantity 5,847; Acquisition price per share 5,204; Total acquisition amount 30,428,250; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-06-23: Type Common shares; Order quantity 20,000; Acquired quantity 16,201; Acquisition price per share 5,249; Total acquisition amount 85,042,570; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-06-24: Type Common shares; Order quantity 20,000; Acquired quantity 18,689; Acquisition price per share 5,268; Total acquisition amount 98,470,530; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-06-25: Type Common shares; Order quantity 20,000; Acquired quantity 13,509; Acquisition price per share 5,410; Total acquisition amount 73,088,180; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-06-26: Type Common shares; Order quantity 20,000; Acquired quantity 20,000; Acquisition price per share 5,323; Total acquisition amount 106,478,690; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-06-29: Type Common shares; Order quantity 20,000; Acquired quantity 3,664; Acquisition price per share 5,416; Total acquisition amount 19,847,650; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-06-30: Type Common shares; Order quantity 20,000; Acquired quantity 4,630; Acquisition price per share 5,626; Total acquisition amount 26,052,590; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-01: Type Common shares; Order quantity 20,000; Acquired quantity 9,000; Acquisition price per share 5,762; Total acquisition amount 51,866,730; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-02: Type Common shares; Order quantity 20,000; Acquired quantity 19,631; Acquisition price per share 5,832; Total acquisition amount 114,495,300; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-03: Type Common shares; Order quantity 20,000; Acquired quantity 17,000; Acquisition price per share 5,877; Total acquisition amount 99,917,200; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-06: Type Common shares; Order quantity 20,000; Acquired quantity 14,745; Acquisition price per share 5,895; Total acquisition amount 86,934,830; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-07: Type Common shares; Order quantity 20,000; Acquired quantity 20,000; Acquisition price per share 5,864; Total acquisition amount 117,287,000; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-08: Type Common shares; Order quantity 20,000; Acquired quantity 20,000; Acquisition price per share 5,640; Total acquisition amount 112,810,630; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-09: Type Common shares; Order quantity 30,000; Acquired quantity 30,000; Acquisition price per share 5,743; Total acquisition amount 172,308,420; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-10: Type Common shares; Order quantity 30,000; Acquired quantity 30,000; Acquisition price per share 5,795; Total acquisition amount 173,872,840; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-13: Type Common shares; Order quantity 30,000; Acquired quantity 30,000; Acquisition price per share 5,638; Total acquisition amount 169,164,300; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-14: Type Common shares; Order quantity 30,000; Acquired quantity 30,000; Acquisition price per share 5,341; Total acquisition amount 160,250,000; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-15: Type Common shares; Order quantity 33,000; Acquired quantity 33,000; Acquisition price per share 5,047; Total acquisition amount 166,561,900; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 2026-07-16: Type Common shares; Order quantity 1,220; Acquired quantity 1,220; Acquisition price per share 5,200; Total acquisition amount 6,344,000; Brokerage Mirae Asset Securities; Financial investment business entity ID 00111722 Total: Order quantity 454,220; Acquired quantity 361,983; Average acquisition price per share 5,524; Total acquisition amount 1,999,666,550

Note 1: The above dates are based on the trade execution date (settlement date is T+2 business days), and the date of completion of treasury share acquisition (final trade settlement date) is July 21, 2026. Note 2: The above acquisition price per share is the average unit price, and the total acquisition amount does not include commissions and fees.

4. Consistency Between Planned and Actual Acquisition Planned acquisition amount (KRW): Common shares 2,000,000,000; Other shares - Total acquisition amount (KRW): Common shares 1,999,666,550; Other shares - Whether below planned amount: -; Reason if below: - Note: The Company completed the treasury share acquisition within the planned acquisition amount stated in the material event report (decision on treasury share acquisition), and a difference arose between the planned acquisition quantity (443,951 shares) and the actual acquisition quantity (361,983 shares) due to share price fluctuations during the acquisition period.

5. Holding Status of Treasury Shares etc. after Acquisition [As of July 22, 2026] (Unit: KRW, shares, %) Common shares: Holdings under Article 165-3 of the Act (A): Quantity 361,983, Ratio 3.37%, Total value 1,999,666,550 Holdings under trust contract per Article 165-3 of the Act (B): Quantity -, Ratio -, Contract amount - Total (A+B): Quantity 361,983, Ratio 3.37%, Amount 1,999,666,550 Total row: Quantity 361,983, Ratio 3.37%, Amount 1,999,666,550

6. Changes in Shares Held by the Largest Shareholder Before and After Acquisition [As of July 22, 2026] (Unit: shares) Name: Kim Min-ho; Share type: Common shares Shares held - acquisition report date: 4,400,000; Shares held - acquisition end date: 4,400,000; Reason for change: - Total: Common shares 4,400,000 -> 4,400,000, -; Other shares -, -, -; Grand total 4,400,000 -> 4,400,000, -