Completion report on merger, etc.

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Completion Report on Merger, etc. (Comprehensive Share Exchange/Transfer) [Form version] 6.0

Kolon Industries Co., Ltd. Completion Report on Merger, etc. (Comprehensive Share Exchange/Transfer) To the Governor of the Financial Supervisory Service July 13, 2026

Company name: Kolon Industries Co., Ltd. CEO: Heo Seong Head office address: 110, Magokdong-ro, Gangseo-gu, Seoul (Magok-dong) (Phone) 02-3677-3114 (Website) http://www.kolonindustries.com Preparer: (Title) CFO (Name) Woo Yeong-jin (Phone) 02-3677-3114

I. Schedule This comprehensive share exchange was carried out in accordance with Article 165-4 of the Financial Investment Services and Capital Markets Act, Article 176-6 of its Enforcement Decree, and Articles 360-2 through 360-14, etc. of the Commercial Act. As a result of this share exchange, Kolon Industries Co., Ltd. became the wholly owning parent company of Kolon Glotech Co., Ltd., and Kolon Glotech Co., Ltd. became a wholly owned subsidiary of Kolon Industries Co., Ltd.

Category: Kolon Industries Co., Ltd. / Kolon Glotech Co., Ltd. Board resolution date: May 7, 2026 / May 7, 2026 Share exchange agreement execution date: May 8, 2026 / May 8, 2026 Shareholder record date: May 22, 2026 / May 22, 2026 Period for receiving notices of objection to the share exchange: start May 22, 2026 / May 22, 2026; end June 5, 2026 / June 5, 2026 Board resolution date or general shareholders' meeting date approving the share exchange: June 9, 2026 / June 8, 2026 Notice/announcement date of invalidation of share certificates of the wholly owned subsidiary: - / June 8, 2026 Appraisal-rights exercise period: start - / June 8, 2026; end - / June 29, 2026 Appraisal-rights purchase-price payment date: - / July 8, 2026 Old share certificate submission period: start - / June 8, 2026; end - / July 10, 2026 Share exchange date: July 13, 2026 / July 13, 2026 Scheduled cash-consideration payment date: July 27, 2026 / -

(Note 1) In the above schedule, any dates after the filing date of this report are expected dates, and the related schedule may be changed by decision of the CEO through consultation or review with relevant institutions, or consultation between the contracting parties, as delegated by the board and the share exchange agreement. (Note 2) The cash consideration to be paid by Kolon Industries Co., Ltd. in connection with this share exchange will be paid to Kolon Glotech Co., Ltd.'s shareholders by bank transfer. The above scheduled cash-consideration payment date may change depending on consultation with relevant institutions, etc.

II. Changes in shareholding of the largest shareholder, etc. 1. Changes in the largest shareholder's shareholding before and after the share exchange Category: Before exchange - Kolon Industries Co., Ltd. / Kolon Glotech Co., Ltd.; After exchange - Kolon Industries Co., Ltd. / Kolon Glotech Co., Ltd. Largest shareholder: Kolon Co., Ltd. / Kolon Industries Co., Ltd.; Kolon Co., Ltd. / Kolon Industries Co., Ltd. Largest shareholder's shares held: common shares 9,200,416 and preferred shares 229,349 / common shares 1,973,128; common shares 9,200,416 and preferred shares 229,349 / common shares 1,977,202 Largest shareholder's equity ratio: 28.82% / 99.77%; 28.82% / 100.00%

(Note 1) As this share exchange pays cash consideration of KRW 222,127 per Kolon Glotech Co., Ltd. common share in lieu of issuing exchange new shares, there is no change in the total number of Kolon Industries Co., Ltd. shares before and after the exchange. (Note 2) The largest shareholder's equity ratio of Kolon Co., Ltd., the largest shareholder of Kolon Industries Co., Ltd., is the combined ratio of common and preferred shares to total issued shares; both before and after the exchange, Kolon Co., Ltd.'s common-share ratio in Kolon Industries Co., Ltd. is 30.72% and its preferred-share ratio is 8.29%.

III. Exercise of appraisal rights 1. Purchase price and method of determining the price (a) Kolon Industries Co., Ltd. common shares: As this proceeds under the small-scale share-exchange procedure pursuant to Article 360-10 of the Commercial Act, Kolon Industries Co., Ltd.'s shareholders are not granted appraisal rights. (b) Kolon Glotech Co., Ltd. common shares Price proposed by the company for negotiation: Kolon Glotech Co., Ltd. KRW 222,127 Basis for calculation: Price determined under Article 176-5 of the Enforcement Decree of the Financial Investment Services and Capital Markets Act, Article 5-13 of the Regulation on Issuance and Disclosure of Securities, etc., and Articles 4 through 6 of the Enforcement Rules thereof Method of handling if negotiation fails: The amount calculated under Article 176-5 of the Enforcement Decree of the Financial Investment Services and Capital Markets Act, Article 5-13 of the Regulation on Issuance and Disclosure of Securities, etc., and Articles 4 through 6 of the Enforcement Rules thereof; if the company or the shareholder requesting purchase objects to the purchase price, the shareholder may apply to the court for a determination of the purchase price. Note: If shareholders who object to the above proposed purchase price apply to the Financial Services Commission for mediation or apply to the court for a determination of the purchase price, such application or request does not affect the progress of this share exchange procedure itself, and any amount adjusted or determined pursuant to such mediation application or determination request is effective only in relation to the shareholder who made that application or request.

2. Details of appraisal-rights requests (a) Kolon Industries Co., Ltd.: As this proceeds as a small-scale share exchange under Article 360-10 of the Commercial Act, Kolon Industries Co., Ltd.'s shareholders are not granted appraisal rights, and the number of shareholders and shares that gave notice of objection was 1,191 shareholders holding 238,926 common shares (0.80%), and 84 shareholders holding 38,581 preferred shares (1.39%). (b) Kolon Glotech Co., Ltd.: Company name Kolon Glotech Co., Ltd.; purchase price KRW 222,127 (common shares); purchase request period June 8, 2026 to June 29, 2026; number of shares for which purchase was requested 389; purchase price total KRW 86,185,276; purchase date July 8, 2026; source of purchase funds the company's own funds. Note: The total number of Kolon Glotech Co., Ltd. common-share purchase requesters was 29, and the number of shares for which purchase was requested was 389, but as one of the requesters applied for a price adjustment for 1 share, the purchase-price total excludes that amount.

3. Policy on handling the purchased shares The shares acquired by Kolon Glotech Co., Ltd. through the exercise of appraisal rights were all retired pursuant to the board resolution of July 9, 2026.

IV. Creditor protection matters: Not applicable.

V. Status of related litigation: As of the share exchange date, no lawsuit has been filed that could affect the validity of this share exchange.

VI. Matters concerning allotment of new shares, etc.: As this share exchange pays cash consideration in lieu of issuing new shares, this item is not applicable.

VII. Summary financial information before and after the [merger, etc.] [Kolon Industries Co., Ltd.] (Unit: KRW million) Category: Before exchange (A); After exchange (B); Change Current assets: 1,691,995; 1,691,395; -600 Non-current assets: 4,823,055; 4,823,960; 905 Total assets: 6,515,050; 6,515,355; 305 Current liabilities: 1,977,112; 1,977,417; 305 Non-current liabilities: 1,246,656; 1,246,656; - Total liabilities: 3,223,768; 3,224,073; 305 Capital stock: 151,435; 151,435; - Capital surplus: 1,078,642; 1,078,642; - Hybrid capital securities: 447,162; 447,162; - Retained earnings: 909,468; 909,468; - Other components of equity: 704,575; 704,575; - Total equity: 3,291,282; 3,291,282; - Total liabilities and equity: 6,515,050; 6,515,355; 305

(Note 1) The pre-exchange statement of financial position is based on the separate statement of financial position as of the end of the first quarter of 2026. (Note 2) Kolon Industries Co., Ltd. acquired 4,074 Kolon Glotech Co., Ltd. common shares through this share exchange and will pay cash consideration of KRW 222,127 per share for those shares. The above post-exchange statement of financial position reflects the Kolon Glotech Co., Ltd. shares acquired by Kolon Industries Co., Ltd. through this share exchange, measured at the acquisition price (KRW 222,127 per share in cash). (Note 3) The post-exchange statement of financial position reflects only the increase in Kolon Industries Co., Ltd.'s equity interest in Kolon Glotech Co., Ltd. resulting from this share exchange, and does not reflect matters that are currently difficult to predict. (Note 4) The above information is prepared on an approximate basis and may differ from the actual post-exchange statement of financial position prepared in accordance with accounting standards.

[Kolon Glotech Co., Ltd.] (Unit: KRW million) Category: Before exchange (A); After exchange (B); Change Current assets: 51,662; 51,576; -86 Non-current assets: 526,511; 526,511; - Total assets: 578,173; 578,087; -86 Current liabilities: 15,189; 15,189; - Non-current liabilities: 60,515; 60,515; - Total liabilities: 75,704; 75,704; - Capital stock: 14,471; 14,471; - Capital surplus: 53,975; 53,975; - Treasury shares: -; -; - Other components of equity: 138,086; 138,086; - Retained earnings: 295,937; 295,851; -86 Total equity: 502,469; 502,383; -86 Total liabilities and equity: 578,173; 578,087; -86

(Note 1) The pre-exchange statement of financial position is based on the separate statement of financial position as of the end of the first quarter of 2026. (Note 2) As a result of Kolon Glotech Co., Ltd. shareholders' exercise of appraisal rights, appraisal rights were exercised for 389 common shares, and cash consideration of KRW 222,127 per share was paid for this merger's exchange with respect to the shares for which appraisal rights were exercised (excluding the 1 share for which a price adjustment was requested); the shares acquired by Kolon Glotech Co., Ltd. through the exercise of appraisal rights were all retired pursuant to the board resolution of July 9, 2026. The above post-exchange statement of financial position reflects the results of the exercise of appraisal rights and the retirement of treasury shares (388 shares) acquired through the exercise of appraisal rights, applied to the pre-exchange statement of financial position. (Note 3) The above information is prepared on an approximate basis and may differ from the actual post-exchange statement of financial position prepared in accordance with accounting standards.