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Material Event Report (Paid-in Capital Increase Decision) Correction Notice

Company: Woosung Materials Co., Ltd. Correction Date: September 18, 2026

1. Original Disclosure Document: Material Event Report (Paid-in Capital Increase Decision) 2. Original Submission Date: August 16, 2024 3. Correction Items:

Item | Reason for Correction | Before Correction | After Correction 9. Payment Date | Change in payment date | September 18, 2026 | March 5, 2027 10. Dividend Base Date of New Shares | | January 1, 2026 | January 1, 2027 12. Scheduled Listing Date of New Shares | | October 12, 2026 | March 19, 2027 20. Other Matters for Investment Consideration | Correction and addition of information | June 18, 2026 payment scheduled | March 5, 2027 payment scheduled

Progress and Future Plans Regarding Third-Party Allotment Paid-in Capital Increase:

The Company completed a board resolution on August 16, 2024 for a third-party allotment paid-in capital increase decision of 5 billion won (3 cases) and proceeded with related disclosures. Subsequently, multiple correction disclosures were submitted due to reasons including changes in payment dates, which resulted in delays in the paid-in capital increase procedures.

Main Reasons for Paid-in Capital Increase Delay and Non-issuance (Payment Delay):

The third-party allotment paid-in capital increase previously disclosed by the Company has been pursued according to a financing plan established under the previous management structure. However, the schedule was partially adjusted due to changes in the business environment. The main reasons for the delay in payment schedule include: changes in the investment schedule and fund execution plan of the initial payment subscriber, changes in investment conditions due to expanded financial market volatility, delays in coordinating fund execution schedules on the underwriter side, and adjustments to the Company's fund management and business schedule.

Future Implementation Plan:

The Company will make every effort to enhance the feasibility of implementation by continuously conducting consultations with relevant investors regarding the execution of the financing plan. The Company will carefully confirm the fund execution capability and implementation schedule of the payment subscriber and faithfully implement necessary procedures to ensure actual payment is made. However, details such as the payment schedule may change depending on the payment subscriber's financing conditions, investment schedule, or progress of related procedures in the future. In such cases, the Company will take necessary measures including correction disclosures without delay in accordance with applicable regulations.

Paid-in Capital Increase Decision Details:

1. Type and Number of New Shares: Common Stock 1,250,000 shares 2. Par Value per Share: 1,000 won 3. Total Issued Shares Before Increase: Common Stock 16,816,073 shares 4. Purpose of Capital Increase: Operating Capital 5,000,000,000 won 5. Method of Capital Increase: Third-party Allotment 6. Issuance Price of New Shares: 4,000 won per common share 7. Benchmark Stock Price: 555 won per common share 7-1. Benchmark Stock Price Calculation Method: Simple average of weighted arithmetic mean stock prices over the past 1 month, 1 week, and most recent day (with the day before the board resolution date as the base date), and the most recent day weighted arithmetic mean stock price 7-2. Discount or Premium Rate: 10.0% 7-3. Basis for Discount Rate Calculation: In accordance with Article 5-18 of the Regulations on Issuance and Disclosure of Securities, for third-party allotment paid-in capital increases, an issuance price may be calculated by applying a discount rate of up to 10% to the benchmark stock price. The board resolution applied a 10.0% discount. 8. Articles of Incorporation Basis for Third-party Allotment: Article 10 (New Share Subscription Rights) of the Company's Articles of Incorporation 9. Payment Date: March 5, 2027 10. Dividend Base Date of New Shares: January 1, 2027 11. Scheduled Date of Share Certificate Delivery: - 12. Scheduled Listing Date of New Shares: March 19, 2027 13. Circumvention of Listing through In-kind Contribution: No 14. Compliance with Circumvention of Listing Requirements: Not Applicable 15. Board Resolution Date: August 16, 2024 - Independent (Outside) Directors Attendance: Present 2, Absent 1 - Auditor Attendance: Absent 16. Subject to Securities Registration Statement Filing: No 17. Reason for Exemption from Filing: Full protective custody with Korea Securities Depository for one year 18. Applicability of Short Selling Prohibition Period: No 19. Fair Trade Commission Reporting Target: Not Applicable 20. Other Matters for Investment Consideration: a) Issuance Price of New Shares: Calculated as the benchmark price determined in accordance with Article 5-18 of the Regulations on Issuance and Disclosure of Securities, discounted by 10.0% (amounts less than the quotation unit are rounded up). The issuance price was changed from 500 won to 400 won following a 4:1 reverse stock split on February 3, 2025 and a 1:5 par value split on February 15, 2025. Subsequently, the amount was adjusted to reflect stock number changes from a 10:1 par value consolidation on April 15, 2026. b) Other Matters: The above resolution may be changed through consultation with relevant authorities, and ancillary matters regarding new share issuance are delegated to the Representative Director.

Benchmark Stock Price Calculation Table (Unit: shares, won):

Category | Trading Volume | Trading Value | Weighted Arithmetic Mean Stock Price Weighted Arithmetic Mean Stock Price for Past 1 Month (A) | 21,779,164 | 14,088,870,175 | 647 Weighted Arithmetic Mean Stock Price for Past 1 Week (B) | 4,846,998 | 2,576,921,055 | 532 Most Recent Day Weighted Arithmetic Mean Stock Price (C) | 2,022,558 | 1,122,470,946 | 555 Arithmetic Mean of (A), (B), (C) (D) | | | 578 Benchmark Stock Price: Lower of (C) and (D) | | | 555 Discount or Premium Rate (%) | | | 10.0 Issuance Price | | | 500

Third-party Allotment Basis, Purpose, etc.:

Articles of Incorporation Basis for Third-party Allotment: Article 10 (New Share Subscription Rights) Purpose of Third-party Allotment Capital Increase: Operating Capital

Third-party Allotment Target and Selection Details:

Third-party Allotment Recipient: Grand E&R Co., Ltd. Relationship with Company or Largest Shareholder: - Selection Process: Selected by the board of directors in consideration of the investor's intention, payment capability, timing, and other factors to achieve the Company's business objectives. Transactions within 6 Months Before and After Capital Increase Decision and Plans: - Number of Shares Allotted: 1,250,000 shares Remarks: -

Company Information: Company Name: Woosung Materials Co., Ltd. Representative Director: Lim Jong-chan Headquarters Address: 35 Geomdan-dong-ro, Buk-gu, Daegu Metropolitan City (Telephone: 053-382-4772) (Website: http://www.startex.co.kr) Document Preparer: Department Head Seo Dae-gyeong (Telephone: 053-382-4772)

Submitted to: Financial Services Commission / Korea Exchange Submission Date: September 18, 2026