Treasury share disposal: results report

What happened

Treasury share disposal: results report 6.2 Tplex Co., Ltd. Treasury share disposal: results report To: The Governor of the Financial Supervisory Service July 31, 2006 (as stated in the filing) Company name: Tplex Co., Ltd. Representative director(s): Kim Young-guk, Kim Tae-seop Head office address: 75 MTV1-ro, Danwon-gu, Ansan-si, Gyeonggi-do (Phone) (031) 488-8800 (Website) http://www.tplex.co.kr Person responsible for preparation: (Title) Representative Director; (Name) Kim Tae-seop; (Phone) (031) 488-8800

1. Name and address of the issuer (a) Name: Tplex Co., Ltd. (b) Address: 75 MTV1-ro, Danwon-gu, Ansan-si, Gyeonggi-do

2. Matters concerning the disposal report (a) Date of filing the material event report: March 27, 2026, May 27, 2026 (b) Disposal period: From July 31, 2026 to July 31, 2026 (c) Type and number of shares disposed of: Registered common shares, 46,330 shares

3. Disposal details (unit: KRW, shares) Date: 2026-07-31; Type: Common shares; Order quantity: 46,330; Quantity disposed: 46,330; Disposal price per share: 3,655; Total disposal amount: 169,336,150; Counterparty of disposal: Employee stock ownership association; Entrusted securities company: Shinhan Investment Corp.; Financial investment business entity unique number: 00138321 Total row: Quantity disposed 46,330; Disposal price per share 3,655; Total disposal amount 169,336,150

Note 1) The disposal price per share is the closing market price (KRW 3,655) on May 26, 2026, the trading day before the board resolution. Note 2) The disposal was carried out by transferring the shares directly from the Company's own stock account into the securities account of the Tplex Employee Stock Ownership Association. Note 3) For further details on the above disposal, please refer to the "Results of the Regular General Meeting of Shareholders" disclosed on March 27, 2026 and the "Material Event Report (Decision on Treasury Share Disposal)" disclosed on May 27, 2026.

4. Whether the disposal report matches the actual disposal Planned shares to be disposed of: Common shares 277,986; Other shares - Total shares actually disposed of: Common shares 46,330; Other shares - Whether matching: Mismatch Reason for difference: A difference in the number of shares disposed of arose due to the disposal schedule following the shareholders' meeting resolution

5. Status of treasury shares held after disposal [as of July 31, 2026] (unit: KRW, shares, %) Common shares -- Holdings under Article 165-3 of the Act (A): Quantity 1,186,683; Ratio 4.88%; Total value KRW 3,823,256,771 Common shares -- Holdings under trust contracts, etc. under Article 165-3 of the Act (B): Quantity -; Ratio -; Contract amount - Common shares -- Total (A+B): Quantity 1,186,683; Ratio 4.88%; Amount KRW 3,823,256,771 Total (all share types) -- Holdings (A): Quantity 1,186,683; Ratio 4.88%; Total value KRW 3,823,256,771 Total (all share types) -- Holdings (B): Quantity -; Ratio -; Contract amount - Total (all share types) -- Total (A+B): Quantity 1,186,683; Ratio 4.88%; Amount KRW 3,823,256,771

Note 1) The above ratio is the ratio of treasury shares to the total number of shares issued (24,268,402 shares) as of the report preparation reference date. Note 2) In holdings under Article 165-3 of the Act (A), the total value of the 1,186,683 shares is stated at book value.