Material event report (treasury share acquisition) (subsidiary)

What happened

Material Event Report / Korea Exchange filing requirement - Material management matter of subsidiary Hansol Technics Co., Ltd. To the Financial Services Commission / Korea Exchange, July 24, 2026 Company name: Hansol Technics Co., Ltd. | CEO: Yoo Kyung-jun Head office: 100 Eulji-ro, Jung-gu, Seoul; Phone 02-3287-7903; Website http://www.hansoltechnics.com Preparer: Head of Finance Division Kim Jin-seok, Phone 02-3287-7903

Treasury Share Acquisition Decision 1. Shares planned for acquisition: Common shares 76,300; class shares: None 2. Planned acquisition amount: Common shares KRW 666,099,000; class shares: None 3. Planned acquisition period: July 27, 2026 ~ August 27, 2026 4. Planned holding period: None stated 5. Purpose: Enhancing shareholder value and share retirement 6. Acquisition method: On-market purchase 7. Entrusted brokerage: Korea Investment & Securities Co., Ltd. 8. Treasury shares held before this acquisition: acquired within distributable-profit limit - common shares: None, ratio: None; other acquisition - common shares: None, ratio: None (class shares: None throughout) 9. Date of acquisition decision: July 24, 2026 - independent (outside) directors present: 3, absent: None; auditor (audit committee member who is not an independent/outside director) present: None 10. Daily purchase order limit: common shares 276,841; class shares: None * Listed companies use "independent director"; unlisted companies use "outside director." 11. Other matters relevant to investment judgment - Item 2 (planned acquisition amount) is the amount resolved by the board. - Item 1 (planned acquisition shares) was calculated from item 2 using the closing price on the day before the board resolution (KRW 8,730); actual shares/amount acquired may change with future share-price movements. - Item 10 (daily purchase order limit) is the smaller of [the greater of ① and ②] and ③: ① 10% of shares reported for acquisition: 7,630 shares; ② 25% of the average daily trading volume for the one month before the day before the board resolution: 276,841 shares; ③ 1% of total shares outstanding: 531,198 shares.

[Treasury share acquisition amount limit] 1. Distributable-profit limit under the Commercial Act as of the end of the preceding fiscal year: a. Net assets KRW 279,092,691,985; b. Capital stock KRW 32,109,878,000; c. Capital and earnings reserves accumulated through the preceding fiscal year KRW 212,206,550,226; d. Unrealized gains as prescribed by presidential decree KRW 26,267,641,175; Subtotal (a-b-c-d) KRW 8,508,622,584 2. Treasury share acquisitions since fiscal year end: None 3. Dividend resolved at the ordinary shareholders' meeting since fiscal year end, and related earnings reserve: KRW 3,455,926,870 4. Quarterly/interim dividend resolved by the board since fiscal year end, and related earnings reserve: None 5. Trust contract amount: None 6. Acquisition cost of treasury shares disposed of since fiscal year end (moving-average method): KRW 27,256,347,945 Treasury share acquisition amount limit (1-2-3-4-5+6): KRW 32,309,043,659

[Treasury shares held before this acquisition decision] (Unit: shares) Common shares, acquired within distributable-profit limit, on-market direct purchase: opening 320,000, acquired/disposed/retired: None, closing 320,000. Off-market direct purchase, tender offer: None. Subtotal (a) common shares: opening 320,000, closing 320,000. Trust-contract acquisition (trustee-held/in-kind-held): None; subtotal (b): None. Other acquisition (c) common shares: opening 372,361, closing 372,361. Total (a+b+c) common shares: opening 692,361, closing 692,361. - Opening balance is as of the start of the fiscal year (2026.01.01); closing balance is as of the disclosure date (2026.07.24).