Treasury share acquisition: results report

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Treasury Share Acquisition: Results Report 6.0

Hanchang Paper Co., Ltd.

Treasury Share Acquisition: Results Report To the Governor of the Financial Supervisory Service August 28, 2026

Company name: Hanchang Paper Co., Ltd. Representative Directors: Kim Joonyoung, Lee Sang-mu Head office address: 1564 Woongsang-daero, Yangsan-si, Gyeongsangnam-do (Phone) 055-370-2000 (Website) http://www.hanchangpaper.co.kr Preparer: (Title) Representative Director (Name) Lee Sang-mu (Phone) 02-3774-5401

1. Name and address of the issuer (a) Name: Hanchang Paper Co., Ltd. (b) Address: 1564 Woongsang-daero, Yangsan-si, Gyeongsangnam-do

2. Matters concerning the acquisition report (a) Material event report filing date: 2026-06-08 (b) Acquisition period: from 2026-06-10 to 2026-08-27 * The above acquisition period is based on trade execution dates.

3. Acquisition details (unit: KRW, shares) 2026-06-10: Order quantity 50,000; Acquired quantity 20,000; Price per share (KRW) 2,258; Total acquisition amount (KRW) 45,150,000; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-11: Order quantity 20,000; Acquired quantity 20,000; Price per share (KRW) 2,305; Total acquisition amount (KRW) 46,098,575; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-12: Order quantity 20,000; Acquired quantity 16,623; Price per share (KRW) 2,288; Total acquisition amount (KRW) 38,033,040; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-16: Order quantity 20,000; Acquired quantity 14,587; Price per share (KRW) 2,411; Total acquisition amount (KRW) 35,162,447; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-17: Order quantity 20,000; Acquired quantity 18,922; Price per share (KRW) 2,491; Total acquisition amount (KRW) 47,137,900; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-18: Order quantity 20,000; Acquired quantity 15,366; Price per share (KRW) 2,449; Total acquisition amount (KRW) 37,625,635; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-19: Order quantity 20,000; Acquired quantity 16,448; Price per share (KRW) 2,424; Total acquisition amount (KRW) 39,876,660; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-22: Order quantity 20,000; Acquired quantity 16,096; Price per share (KRW) 2,451; Total acquisition amount (KRW) 39,449,315; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-23: Order quantity 20,000; Acquired quantity 20,000; Price per share (KRW) 2,380; Total acquisition amount (KRW) 47,600,000; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-24: Order quantity 20,000; Acquired quantity 7,501; Price per share (KRW) 2,377; Total acquisition amount (KRW) 17,829,480; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-25: Order quantity 20,000; Acquired quantity 20,000; Price per share (KRW) 2,457; Total acquisition amount (KRW) 49,148,160; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-26: Order quantity 20,000; Acquired quantity 20,000; Price per share (KRW) 2,528; Total acquisition amount (KRW) 50,555,000; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-29: Order quantity 20,000; Acquired quantity 6,194; Price per share (KRW) 2,633; Total acquisition amount (KRW) 16,307,305; Brokerage Hanwha Investment & Securities (code 00148610) 2026-06-30: Order quantity 20,000; Acquired quantity 8,263; Price per share (KRW) 2,648; Total acquisition amount (KRW) 21,877,675; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-01: Order quantity 20,000; Acquired quantity 7,925; Price per share (KRW) 2,835; Total acquisition amount (KRW) 22,467,375; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-02: Order quantity 20,000; Acquired quantity 6,000; Price per share (KRW) 2,828; Total acquisition amount (KRW) 16,965,000; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-03: Order quantity 20,000; Acquired quantity 6,548; Price per share (KRW) 2,722; Total acquisition amount (KRW) 17,825,420; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-06: Order quantity 20,000; Acquired quantity 16,753; Price per share (KRW) 2,679; Total acquisition amount (KRW) 44,875,510; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-07: Order quantity 20,000; Acquired quantity 17,296; Price per share (KRW) 2,683; Total acquisition amount (KRW) 46,396,725; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-08: Order quantity 20,000; Acquired quantity 16,593; Price per share (KRW) 2,640; Total acquisition amount (KRW) 43,809,425; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-09: Order quantity 20,000; Acquired quantity 11,371; Price per share (KRW) 2,543; Total acquisition amount (KRW) 28,918,630; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-10: Order quantity 20,000; Acquired quantity 13,005; Price per share (KRW) 2,595; Total acquisition amount (KRW) 33,744,955; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-13: Order quantity 20,000; Acquired quantity 18,894; Price per share (KRW) 2,571; Total acquisition amount (KRW) 48,574,700; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-14: Order quantity 20,000; Acquired quantity 12,996; Price per share (KRW) 2,530; Total acquisition amount (KRW) 32,885,080; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-15: Order quantity 20,000; Acquired quantity 3,790; Price per share (KRW) 2,595; Total acquisition amount (KRW) 9,833,415; Brokerage Hanwha Investment & Securities (code 00148610) 2026-07-16: Order quantity 20,000; Acquired quantity 12,375; Price per share (KRW) 2,610; Total acquisition amount (KRW) 32,295,370; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-03: Order quantity 20,000; Acquired quantity 20,000; Price per share (KRW) 3,162; Total acquisition amount (KRW) 63,231,550; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-04: Order quantity 20,000; Acquired quantity 17,704; Price per share (KRW) 3,192; Total acquisition amount (KRW) 56,511,430; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-05: Order quantity 20,000; Acquired quantity 20,000; Price per share (KRW) 3,176; Total acquisition amount (KRW) 63,529,265; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-06: Order quantity 20,000; Acquired quantity 15,048; Price per share (KRW) 3,160; Total acquisition amount (KRW) 47,549,195; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-07: Order quantity 20,000; Acquired quantity 19,324; Price per share (KRW) 3,138; Total acquisition amount (KRW) 60,642,150; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-10: Order quantity 20,000; Acquired quantity 7,614; Price per share (KRW) 3,186; Total acquisition amount (KRW) 24,261,325; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-11: Order quantity 20,000; Acquired quantity 15,790; Price per share (KRW) 3,272; Total acquisition amount (KRW) 51,657,620; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-12: Order quantity 20,000; Acquired quantity 19,332; Price per share (KRW) 3,276; Total acquisition amount (KRW) 63,334,770; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-13: Order quantity 20,000; Acquired quantity 20,000; Price per share (KRW) 3,300; Total acquisition amount (KRW) 66,008,995; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-14: Order quantity 50,000; Acquired quantity 33,375; Price per share (KRW) 3,271; Total acquisition amount (KRW) 109,168,750; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-18: Order quantity 50,000; Acquired quantity 37,665; Price per share (KRW) 3,297; Total acquisition amount (KRW) 124,198,420; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-19: Order quantity 50,000; Acquired quantity 22,392; Price per share (KRW) 3,299; Total acquisition amount (KRW) 73,864,865; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-20: Order quantity 50,000; Acquired quantity 29,632; Price per share (KRW) 3,504; Total acquisition amount (KRW) 103,834,290; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-21: Order quantity 50,000; Acquired quantity 27,295; Price per share (KRW) 3,460; Total acquisition amount (KRW) 94,428,365; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-24: Order quantity 24,000; Acquired quantity 24,000; Price per share (KRW) 3,453; Total acquisition amount (KRW) 82,880,000; Brokerage Hanwha Investment & Securities (code 00148610) 2026-08-27: Order quantity 1,500; Acquired quantity 1,470; Price per share (KRW) 3,030; Total acquisition amount (KRW) 4,454,100; Brokerage Hanwha Investment & Securities (code 00148610) Total: Order quantity 1,005,500; Acquired quantity 694,187; Average price per share (KRW) 2,881; Total acquisition amount (KRW) 1,999,997,887 Note 1) The above dates are based on trade execution dates. Note 2) The above price per share and total acquisition amount do not include brokerage fees. Note 3) The above price per share is the average acquisition unit price.

4. Whether the planned acquisition matches the actual acquisition Planned acquisition amount (KRW): Common shares 1,999,999,040; Other shares - Not applicable Actual total acquisition amount (KRW): Common shares 1,999,997,887; Other shares - Not applicable Shortfall: No Note 1) Due to share-price movements during the acquisition period, the Company acquired 694,187 shares, 392,769 shares fewer than the planned 1,086,956 shares. Note 2) The Company completed the share acquisition as close as possible to the planned acquisition amount stated in the material event report (2026-06-08); the difference between the planned acquisition amount and the total acquisition amount for common shares is less than the price of one share.

5. Treasury share holding status after acquisition [as of 2026-08-28] (unit: KRW, shares, %) Common shares: Holding under Article 165-3 (A) - Quantity 697,141; Ratio 5.65%; Total value KRW 2,006,851,631; Holding under a trust agreement per Article 165-3 (B) - Not applicable; Total (A+B) - Quantity 697,141; Ratio 5.65%; Amount KRW 2,006,851,631 Total: Quantity 697,141; Ratio 5.65%; Amount KRW 2,006,851,631 Note 1) The above ratio is calculated including the 406,189 shares issued upon the CB conversion request on 2026-08-21.

6. Changes in the largest shareholder's shareholding before and after the acquisition [as of 2026-08-28] (unit: shares) Name: Kim Joonyoung; Type of shares: Common shares; Shares held at acquisition report date: 2,133,905; Shares held at acquisition end date: 2,335,406; Reason for change: On-market purchase Total: Common shares 2,133,905 to 2,335,406; Reason for change: On-market purchase; Other shares: Not applicable Grand total: 2,133,905 to 2,335,406; Reason for change: On-market purchase