Treasury share acquisition: results report

What happened

Treasury Share Acquisition Results Report, Form 6.0 JTC Co., Ltd. To: Governor of the Financial Supervisory Service July 31, 2026 Company name: JTC Co., Ltd. Representative Director: Yamamoto Fumiya Head office address: Waco Building 6F, 2-6 Samon-cho, Shinjuku-ku, Tokyo, Japan Phone: +81-3-6457-7793, 02-785-9101 Website: http://www.groupjtc.com/korean/ Preparer: (Title) Director, Head of Management Division; (Name) Okajima Toru; (Phone) +81-3-6457-7793

1. Name and address of the issuer (a) Name: JTC Co., Ltd. (b) Address: Waco Building 6F, 2-6 Samon-cho, Shinjuku-ku, Tokyo, Japan

2. Acquisition report details (a) Date of material event report submission: April 30, 2026 (b) Acquisition period: from May 7, 2026 to July 29, 2026

3. Acquisition details (unit: KRW, shares) 2026-05-07: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 5,088; total acquisition amount KRW 162,825,315; broker NH Investment & Securities (ID 00120182) 2026-05-08: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 5,105; total acquisition amount KRW 163,369,590; broker NH Investment & Securities (ID 00120182) 2026-05-11: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,917; total acquisition amount KRW 157,340,310; broker NH Investment & Securities (ID 00120182) 2026-05-12: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,878; total acquisition amount KRW 156,093,664; broker NH Investment & Securities (ID 00120182) 2026-05-13: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,857; total acquisition amount KRW 155,422,695; broker NH Investment & Securities (ID 00120182) 2026-05-14: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,878; total acquisition amount KRW 156,104,197; broker NH Investment & Securities (ID 00120182) 2026-05-15: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,898; total acquisition amount KRW 156,750,845; broker NH Investment & Securities (ID 00120182) 2026-05-18: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,841; total acquisition amount KRW 154,910,195; broker NH Investment & Securities (ID 00120182) 2026-05-19: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,853; total acquisition amount KRW 155,304,385; broker NH Investment & Securities (ID 00120182) 2026-05-20: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,736; total acquisition amount KRW 151,538,881; broker NH Investment & Securities (ID 00120182) 2026-05-21: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,821; total acquisition amount KRW 154,285,490; broker NH Investment & Securities (ID 00120182) 2026-05-22: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,980; total acquisition amount KRW 159,364,885; broker NH Investment & Securities (ID 00120182) 2026-05-26: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,904; total acquisition amount KRW 156,933,990; broker NH Investment & Securities (ID 00120182) 2026-05-27: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,815; total acquisition amount KRW 154,075,589; broker NH Investment & Securities (ID 00120182) 2026-05-28: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,897; total acquisition amount KRW 156,688,250; broker NH Investment & Securities (ID 00120182) 2026-05-29: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,881; total acquisition amount KRW 156,180,910; broker NH Investment & Securities (ID 00120182) 2026-06-01: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,804; total acquisition amount KRW 153,723,265; broker NH Investment & Securities (ID 00120182) 2026-06-02: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,777; total acquisition amount KRW 152,863,525; broker NH Investment & Securities (ID 00120182) 2026-06-04: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,866; total acquisition amount KRW 155,706,385; broker NH Investment & Securities (ID 00120182) 2026-06-05: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,860; total acquisition amount KRW 155,512,290; broker NH Investment & Securities (ID 00120182) 2026-06-08: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,654; total acquisition amount KRW 148,933,340; broker NH Investment & Securities (ID 00120182) 2026-06-09: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,815; total acquisition amount KRW 154,065,975; broker NH Investment & Securities (ID 00120182) 2026-06-10: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,873; total acquisition amount KRW 155,925,840; broker NH Investment & Securities (ID 00120182) 2026-06-11: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,811; total acquisition amount KRW 153,943,030; broker NH Investment & Securities (ID 00120182) 2026-06-12: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,938; total acquisition amount KRW 158,029,155; broker NH Investment & Securities (ID 00120182) 2026-06-15: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,889; total acquisition amount KRW 156,433,545; broker NH Investment & Securities (ID 00120182) 2026-06-16: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,825; total acquisition amount KRW 154,397,047; broker NH Investment & Securities (ID 00120182) 2026-06-17: Common stock; order quantity 32,000; quantity acquired 32,000; price per share KRW 4,884; total acquisition amount KRW 156,298,145; broker NH Investment & Securities (ID 00120182) 2026-06-18: Common stock; order quantity 38,000; quantity acquired 38,000; price per share KRW 4,865; total acquisition amount KRW 184,876,754; broker NH Investment & Securities (ID 00120182) 2026-06-19: Common stock; order quantity 38,000; quantity acquired 38,000; price per share KRW 4,756; total acquisition amount KRW 180,729,361; broker NH Investment & Securities (ID 00120182) 2026-06-22: Common stock; order quantity 38,000; quantity acquired 38,000; price per share KRW 4,883; total acquisition amount KRW 185,571,819; broker NH Investment & Securities (ID 00120182) 2026-06-23: Common stock; order quantity 38,000; quantity acquired 38,000; price per share KRW 4,780; total acquisition amount KRW 181,656,750; broker NH Investment & Securities (ID 00120182) 2026-06-24: Common stock; order quantity 38,000; quantity acquired 38,000; price per share KRW 4,735; total acquisition amount KRW 179,945,633; broker NH Investment & Securities (ID 00120182) 2026-06-25: Common stock; order quantity 38,000; quantity acquired 38,000; price per share KRW 4,830; total acquisition amount KRW 183,532,425; broker NH Investment & Securities (ID 00120182) 2026-06-26: Common stock; order quantity 38,000; quantity acquired 38,000; price per share KRW 4,736; total acquisition amount KRW 179,971,971; broker NH Investment & Securities (ID 00120182) 2026-06-29: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,836; total acquisition amount KRW 193,422,325; broker NH Investment & Securities (ID 00120182) 2026-06-30: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,852; total acquisition amount KRW 194,093,120; broker NH Investment & Securities (ID 00120182) 2026-07-01: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,902; total acquisition amount KRW 196,069,970; broker NH Investment & Securities (ID 00120182) 2026-07-02: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,915; total acquisition amount KRW 196,587,932; broker NH Investment & Securities (ID 00120182) 2026-07-03: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,904; total acquisition amount KRW 196,157,850; broker NH Investment & Securities (ID 00120182) 2026-07-06: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,901; total acquisition amount KRW 196,047,420; broker NH Investment & Securities (ID 00120182) 2026-07-07: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,899; total acquisition amount KRW 195,961,995; broker NH Investment & Securities (ID 00120182) 2026-07-08: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,867; total acquisition amount KRW 194,686,565; broker NH Investment & Securities (ID 00120182) 2026-07-09: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,871; total acquisition amount KRW 194,825,825; broker NH Investment & Securities (ID 00120182) 2026-07-10: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,894; total acquisition amount KRW 195,751,640; broker NH Investment & Securities (ID 00120182) 2026-07-13: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,882; total acquisition amount KRW 195,297,945; broker NH Investment & Securities (ID 00120182) 2026-07-14: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,860; total acquisition amount KRW 194,419,405; broker NH Investment & Securities (ID 00120182) 2026-07-15: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,858; total acquisition amount KRW 194,302,010; broker NH Investment & Securities (ID 00120182) 2026-07-16: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,846; total acquisition amount KRW 193,857,595; broker NH Investment & Securities (ID 00120182) 2026-07-20: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,832; total acquisition amount KRW 193,293,720; broker NH Investment & Securities (ID 00120182) 2026-07-21: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,816; total acquisition amount KRW 192,656,680; broker NH Investment & Securities (ID 00120182) 2026-07-22: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,817; total acquisition amount KRW 192,663,895; broker NH Investment & Securities (ID 00120182) 2026-07-23: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 4,932; total acquisition amount KRW 197,298,185; broker NH Investment & Securities (ID 00120182) 2026-07-24: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 5,075; total acquisition amount KRW 202,991,150; broker NH Investment & Securities (ID 00120182) 2026-07-27: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 5,099; total acquisition amount KRW 203,976,185; broker NH Investment & Securities (ID 00120182) 2026-07-28: Common stock; order quantity 40,000; quantity acquired 40,000; price per share KRW 5,045; total acquisition amount KRW 201,801,455; broker NH Investment & Securities (ID 00120182) 2026-07-29: Common stock; order quantity 58,800; quantity acquired 49,675; price per share KRW 4,923; total acquisition amount KRW 244,535,205; broker NH Investment & Securities (ID 00120182) Total: -; order quantity 2,060,800; quantity acquired 2,051,675; average price per share KRW 4,874; total acquisition amount KRW 10,000,003,518; -; -

4. Whether planned acquisition matches actual acquisition Planned acquisition amount (KRW): Common stock 10,000,000,000; Other stock - Total acquisition amount (KRW): Common stock 10,000,003,518; Other stock - Shortfall from planned amount: None; Reason if shortfall occurred: - Note: In the process of executing orders on the final acquisition date (2026-07-29) to match the reported planned acquisition amount, the company revised its orders in response to share price movements, resulting in the total acquisition amount slightly exceeding the planned acquisition amount by KRW 3,518.

5. Status of treasury shares held after acquisition [as of July 31, 2026] (unit: KRW million, shares, %) Common stock: Holdings under Article 165-3 of the Act (A): quantity 2,051,675; ratio 4.2%; total value KRW 10,000 million. Holdings under trust agreements per Article 165-3 of the Act (B): quantity -; ratio -; contract amount -. Total (A+B): quantity 2,051,675; ratio 4.2%; amount KRW 10,000 million. Total row: quantity 2,051,675; ratio 4.2%; amount KRW 10,000 million (same for A, B blank, and A+B). Note: The retirement of 2,973,233 treasury shares resolved by the board on May 20, 2026 was carried out on July 21, 2026; because the related administrative procedures in Japan are still in progress, the above treasury share holdings are presented excluding the retired shares.

6. Changes in shares held by the largest shareholder before and after the acquisition [as of July 31, 2026] (unit: shares) Name: Yubentuseu Holdings Investment Purpose Company, LLC; Share type: Common stock; Shares held at acquisition report date: 20,867,000; Shares held at acquisition end date: 20,867,000; Reason for change: - Total: Common stock 20,867,000 / 20,867,000 / -; Other stock - / - / -; Grand total 20,867,000 / 20,867,000 / -