[Amended] Material event report (business transfer)

A later amendment corrects this filing, so the terms on this page may be out of date. See the latest version (2026-09-16) →

What happened

Business Transfer Decision 6.1 Artist Company Co., Ltd. Amendment Report (Amendment) August 14, 2026

1. Disclosure document being amended: Material Event Report (Business Transfer Decision) 2. Original filing date of the disclosure document being amended: July 22, 2026 3. Amendment details Item: 6. Expected transfer date / Contract execution date Reason for amendment: Correction of a clerical error in the contract execution date Before amendment: 2026.07.15 After amendment: 2026.07.22

Material Event Report / Matters Subject to Exchange Reporting Obligations To the Financial Services Commission / Korea Exchange July 22, 2026

Company name: Artist Company Co., Ltd. Representative director: Park Seung-hyun Head office address: 430 Dosan-daero, 3F, Gangnam-gu, Seoul (Phone) 02-2038-3266 (Website) http://www.artistcompany.co.kr Preparer: (Title) Director (Name) Park Sun-hee (Phone) 02-2038-3266

Business Transfer Decision

1. Business being transferred: The entirety of Artist Company Co., Ltd.'s platform business

2. Key contents of the business being transferred: The entirety of the business operated by Artist Company Co., Ltd.'s platform business division

3. Transfer price (KRW): 5,000,000,000 - Financial details (KRW): Business division to be transferred (A); Company total (B); Proportion (%) (A/B) Total assets: 2,127,693,235; 71,642,914,566; 2.97 Revenue: 9,800,830,815; 46,650,140,282; 21.01

4. Purpose of the transfer: To strengthen the mid- to long-term growth foundation through portfolio restructuring and to enhance the competitiveness of core businesses

5. Effect of the transfer: Changes in the asset and revenue structure are expected as a result of the transfer, and improvement in the financial structure and operational efficiency are expected

6. Expected transfer date Contract execution date: July 22, 2026 Transfer reference date: September 16, 2026

7. Transaction counterparty Company name (name): Rainbow8 Co., Ltd. Capital stock (KRW): 218,485,500 Main business: Development of online advertising systems and operation of an advertising platform Head office address: Daechi-dong, Gangnam-gu, Seoul Relationship with the company: -

8. Payment of the transfer price: A lump-sum cash payment is scheduled to be received (paid) on the transaction closing date (Wednesday, September 16, 2026)

9. Matters concerning external valuation Whether an external valuation was conducted: Yes - Basis and reason: Appropriateness assessment under Article 165-4, Paragraph 1, Item 2 and Paragraph 2 of the Financial Investment Services and Capital Markets Act and Article 176-6, Paragraph 4 of its Enforcement Decree Name of the external valuation institution: Dongsung Accounting Corporation External valuation period: June 1, 2026 - July 22, 2026 External valuation opinion: This appraiser performed this valuation for the purpose of use in preparing and as an attachment to the material event report to be prepared as your company transfers the business division subject to transfer, and assessed the appropriateness of the transfer price. In performing this valuation, this appraiser used the discounted cash flow (DCF) method among income-approach valuation methods. This appraiser utilized the financial data, future investment and business plans, various statistical data and market analysis data of the relevant industry presented by your company. As a result of this appraiser's analysis, the value of the business division subject to transfer as of the valuation reference date was calculated to be in the range of KRW 3,616 million to KRW 4,268 million. Accordingly, no grounds were found to conclude that the actual expected transfer price of KRW 4,000 million agreed between your company and the transferee for the business division subject to transfer is inappropriate from a materiality perspective. This appraiser, from an independent standpoint, reviewed the reasonableness of the various assumptions and the validity of the underlying data presented by your company, and on that basis assessed the value of your company's business division subject to transfer. Accordingly, if there is a change in the data presented by your company, or if there is a change in the various assumptions, such as future estimated performance, exchange rates, interest rates, economic growth rates, domestic inflation rates, market conditions, and other domestic and international macroeconomic conditions, the valuation results may change accordingly, and the difference may be material.

10. Whether a special resolution of the shareholders' meeting is required: Yes - Expected shareholders' meeting date: September 2, 2026 - Matters concerning appraisal rights Exercise requirements: Pursuant to Article 374-2 of the Commercial Act and Article 165-5 of the Financial Investment Services and Capital Markets Act, a shareholder recorded in the shareholder register as of the record date for determining shareholders who objects to the board resolution on the business transfer and notifies the company in writing of such objection by the day before the date of the shareholders' meeting resolution may, within 20 days from the date of the shareholders' meeting resolution, submit a written document stating the type and number of shares and request the company to purchase all or part of the shares held. However, pursuant to Article 165-5, Paragraph 1 of the Financial Investment Services and Capital Markets Act and Article 176-7, Paragraph 2 of its Enforcement Decree, appraisal rights are granted only to a shareholder who can prove that the shares were acquired before the board resolution on this business transfer was disclosed, or who can prove that a sale and purchase contract for the relevant shares, a termination of a loan-for-consumption agreement for the relevant shares, or another legal act concerning the relevant shares occurred by the business day following the date the board resolution was disclosed, and who continues to hold the relevant shares until the date of exercising the appraisal right; appraisal rights are forfeited for shares sold and reacquired during that period, and once appraisal rights have been exercised, the request to purchase the shares may not be cancelled or withdrawn without the company's consent. In addition, a shareholder who gave prior written notice of objection to the board resolution on the business transfer but voted in favor of the business transfer at the shareholders' meeting may not exercise appraisal rights. As the company is listed on the KOSDAQ market, it must purchase the relevant shares within one month from the end of the appraisal rights exercise period for any valid request. Expected purchase price: 2,634 Exercise procedure, method, period, place: (1) Method of notifying objection: Pursuant to Article 374-2 of the Commercial Act and Article 165-5 of the Financial Investment Services and Capital Markets Act, a shareholder recorded in the company's shareholder register as of the record date for determining shareholders (limited to those who continue to hold the shares until the date of notice) who wishes to exercise appraisal rights must notify the company in writing of an objection to the board resolution on the business transfer before the shareholders' meeting. However, a beneficial shareholder who has deposited share certificates with a securities company (financial investment business) must notify the relevant securities company by three business days before the shareholders' meeting date, and the securities company must collect the beneficial shareholders' statements of objection and notify the Korea Securities Depository, the depository institution, by two business days before the shareholders' meeting date. The Korea Securities Depository must notify the company of the objection on behalf of the beneficial shareholders before the shareholders' meeting date. Note that the notification deadline for objection may differ by account management institution such as a securities company, so a shareholder wishing to give notice of objection should check in advance the notification deadline of the account management institution where their account is opened. (2) Method of exercising appraisal rights: Pursuant to Article 374-2 of the Commercial Act and Article 165-5 of the Financial Investment Services and Capital Markets Act, a shareholder who objects to the board resolution on the business transfer and has notified the company in writing of such objection before the shareholders' meeting may, within 20 days from the date of the shareholders' meeting resolution, request the company in writing stating the type and number of shares to purchase all or part of the shares held by the shareholder (limited to shares held continuously from the record date for determining shareholders until the date of exercising appraisal rights). However, a beneficial shareholder who has deposited share certificates with a securities company (financial investment business) may request the company to purchase the shares held by preparing a request for exercise of appraisal rights for the number of shares held in deposit with the relevant securities company and submitting it to the relevant securities company by two business days before the end of the appraisal rights exercise period, in which case the Korea Securities Depository, the depository institution, will make the request on the shareholder's behalf. Note that the receipt deadline may differ by account management institution such as a securities company, so a shareholder wishing to exercise appraisal rights should check in advance the receipt deadline of the account management institution where their account is opened. A shareholder wishing to exercise appraisal rights directly against the company may give written notice to the company by close of business on the last day of the appraisal rights exercise period. (3) Request period: - Period for receiving notices of objection to the business transfer: August 18, 2026 - September 1, 2026 - Appraisal rights exercise period: September 2, 2026 - September 22, 2026 (4) Place of receipt: Disclosure Management Team, 4F, 430 Dosan-daero (Cheongdam-dong), Gangnam-gu, Seoul * Beneficial shareholders should submit to the relevant securities company or other account management institution Expected payment timing and method: (1) Expected timing of payment of the share purchase price: Payment is expected within one month from the end of the appraisal rights exercise period. (2) Method of payment of the share purchase price: (i) Registered shareholders: Transfer to the shareholder's registered account (ii) Beneficial shareholders: Transfer to the shareholder's own account at the relevant securities company Matters relating to restrictions on appraisal rights: (1) If approval of the business transfer is rejected at the shareholders' meeting convened to approve execution of this business transfer agreement, the appraisal rights will also lapse, and the business transfer agreement will not take effect. (2) If a shareholder granted appraisal rights sells the relevant shares before exercising the appraisal rights, the appraisal rights are forfeited, and appraisal rights are not granted even if the shareholder reacquires the shares. (3) Once appraisal rights have been exercised, they may not be cancelled, and a shareholder who gave prior written notice of objection to the board resolution on the business transfer but voted in favor of the business transfer at the shareholders' meeting may not exercise appraisal rights. Effect on the agreement: If the total exercise price of appraisal rights exceeds KRW 3,000,000,000, the company may terminate this business transfer transaction by written notice to the transferee. However, the company may decide, through a board resolution, to proceed with this transaction after considering the business environment and other relevant matters.

11. Board resolution date (decision date): July 22, 2026 - Independent (outside) director attendance: Present (persons) 1; Absent (persons) 0 - Auditor (audit committee member who is not an independent (outside) director) attendance: Present

12. Whether subject to reporting to the Fair Trade Commission: Not applicable

13. Whether a put option or similar contract has been concluded: No - Contract details: Not applicable * "Independent director" applies to listed companies and "outside director" to unlisted companies.

14. Future plans for corporate restructuring: As of the filing date of this report, there are no confirmed matters relating to corporate restructuring being pursued or planned following completion of the business transfer.

15. Other material matters for investment decisions (1) Transfer price: An external valuation institution's assessment was obtained regarding the appropriateness of the above transfer price. For details of the valuation, please refer to the attached "External Valuation Institution's Opinion." The above transfer price was set at KRW 5.0 billion, but may be adjusted under the business transfer agreement to reflect changes in net assets, etc. as of the transaction closing date. (2) Financial details: The financial details for the transfer price in Item 3 above are based on consolidated financial statements, and the total assets figure is as of the end of the most recent fiscal year (December 31, 2025). In addition, the capital stock (KRW) of the transaction counterparty in Item 7 above is the amount as of December 31, 2025. (3) Transfer schedule 1) The contract execution date in Item 6 above is the same as the board resolution date. 2) The transfer reference date in Item 6 above is the expected transaction closing date as of the time of this disclosure; the actual transaction closing date will occur upon completion of legal review and conversion of the investment, or on a date agreed by both companies, and may change depending on relevant laws and consultation with and approval by relevant institutions. 3) When the transfer reference date in Item 6 above is finalized, a further disclosure will be made. (4) Expected share purchase price upon exercise of appraisal rights (i) Price proposed by the company for negotiation: Pursuant to Article 374-2 of the Commercial Act and Article 165-5 of the Financial Investment Services and Capital Markets Act, the purchase price of shares subject to a request is, pursuant to Article 176-7, Paragraph 3 of the Enforcement Decree of the Financial Investment Services and Capital Markets Act, calculated as the arithmetic average of the volume-weighted average closing prices over the two months, one month, and one week preceding the day before the board resolution date relating to the business transfer (or, if there was an adjustment to the base trading price due to an ex-dividend or ex-rights event during that period and the period from the ex-dividend or ex-rights date to the day before the board resolution date is seven days or more, that period). (Reference date: July 21, 2026) Category: Amount (KRW); Calculation period (i) Volume-weighted average closing price over the most recent 2 months: 3,319; 2026.05.22 - 2026.07.21 (ii) Volume-weighted average closing price over the most recent 1 month: 2,466; 2026.06.22 - 2026.07.21 (iii) Volume-weighted average closing price over the most recent 1 week: 2,118; 2026.07.15 - 2026.07.21 Base purchase price [(i + ii + iii)/3]: 2,634; -

Daily closing price and trading data (Unit: KRW, shares): Date: Closing price; Trading volume; Trading value (closing price x volume) 2026/07/21: 2,100; 22,496; 47,241,600 2026/07/20: 2,015; 31,870; 64,218,050 2026/07/16: 2,155; 69,606; 150,000,930 2026/07/15: 2,135; 66,412; 141,789,620 2026/07/14: 2,090; 91,139; 190,480,510 2026/07/13: 2,125; 28,363; 60,271,375 2026/07/10: 2,315; 22,972; 53,180,180 2026/07/09: 2,220; 32,398; 71,923,560 2026/07/08: 2,210; 77,869; 172,090,490 2026/07/07: 2,420; 48,471; 117,299,820 2026/07/06: 2,420; 30,715; 74,330,300 2026/07/03: 2,440; 99,623; 243,080,120 2026/07/02: 2,395; 92,818; 222,299,110 2026/07/01: 2,515; 62,191; 156,410,365 2026/06/30: 2,450; 40,365; 98,894,250 2026/06/29: 2,550; 74,465; 189,885,750 2026/06/26: 2,375; 62,244; 147,829,500 2026/06/25: 2,560; 219,181; 561,103,360 2026/06/24: 2,750; 99,422; 273,410,500 2026/06/23: 2,940; 159,721; 469,579,740 2026/06/22: 3,155; 40,360; 127,335,800 2026/06/19: 3,210; 45,686; 146,652,060 2026/06/18: 3,395; 90,701; 307,929,895 2026/06/17: 3,535; 57,734; 204,089,690 2026/06/16: 3,300; 29,859; 98,534,700 2026/06/15: 3,320; 45,019; 149,463,080 2026/06/12: 3,320; 48,699; 161,680,680 2026/06/11: 3,110; 27,980; 87,017,800 2026/06/10: 3,195; 105,703; 337,721,085 2026/06/09: 3,195; 63,175; 201,844,125 2026/06/08: 3,095; 180,964; 560,083,580 2026/06/05: 3,200; 249,960; 799,872,000 2026/06/04: 3,630; 451,746; 1,639,837,980 2026/06/02: 4,225; 209,356; 884,529,100 2026/06/01: 4,070; 205,293; 835,542,510 2026/05/29: 4,115; 244,955; 1,007,989,825 2026/05/28: 3,965; 162,598; 644,701,070 2026/05/27: 3,970; 152,017; 603,507,490 2026/05/26: 4,230; 305,076; 1,290,471,480 2026/05/22: 4,325; 179,424; 776,008,800

(ii) Method of handling if negotiation is not reached: Pursuant to Article 165-5 of the Financial Investment Services and Capital Markets Act, if no agreement is reached, the purchase price shall be the amount calculated in accordance with the method prescribed in Article 176-7 of the Enforcement Decree of the same Act, based on the trading price of the relevant shares traded on the securities market before the board resolution date, and a shareholder who requested the purchase and objects to that purchase price may petition the court to determine the purchase price.

(5) Other 1) The above business transfer schedule and other key terms are the expected schedule as of the time of this disclosure and may change depending on relevant laws and consultation with and approval by relevant institutions.

* Related disclosures: Not applicable.