Completion report on merger, etc. (merger)

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Completion Report on Merger, etc. 6.0 NHN Corporation

Completion Report on Merger, etc. (Merger) To: Governor of the Financial Supervisory Service October 1, 2026 Company name: NHN Corporation CEO: Jung Woo-jin Head office address: 16 Daewangpangyo-ro 645beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do (Sampyeong-dong) Phone: 1544-6859 Website: http://www.nhn.com Preparer: CFO, Ahn Hyeon-sik, Phone: 1544-6859

I. Schedule Merger board resolution date: July 8, 2026 Material event report filing: July 8, 2026 Shareholder register closure and record-date notice: July 8, 2026, Posted on Company website Merger agreement date: July 10, 2026 Shareholder record date: July 23, 2026 Small-scale merger notice: July 23, 2026, Posted on Company website Objection notice receipt period: Start July 23, 2026; End August 6, 2026 Merger approval board resolution: August 10, 2026, In lieu of general shareholders' meeting Creditor objection notice date: August 11, 2026, Posted on Company website Creditor objection period: Start August 11, 2026; End September 29, 2026 Merger date: September 30, 2026 Completion report board resolution date: October 1, 2026, In lieu of general shareholders' meeting Completion report notice: October 1, 2026, Posted on Company website Expected merger registration date: October 1, 2026 Note 1: As this merger proceeds under the small-scale merger procedure of Article 527-3 of the Commercial Act, appraisal rights are not recognized, and the shareholders' meeting required for merger approval was replaced by board approval. Note 2: The completion report meeting referenced above was held in lieu of a physical meeting via board resolution and website notice on October 1, 2026, pursuant to Article 526, Paragraph 3 of the Commercial Act.

II. Changes in Ownership Stakes of Major Shareholders, etc. The surviving company, NHN Corporation, holds 100% of the shares of the dissolving company, NHN Investment Co., Ltd., and resolved to merge at a ratio of 1.0000000 : 0.0000000 by a non-capital-increase method. No new shares will be issued by NHN Corporation as a result of this merger, and there is no change in the equity holdings of major shareholders, etc.

III. Exercise of Appraisal Rights As this merger proceeds under the small-scale merger procedure of Article 527-3 of the Commercial Act, appraisal rights are not recognized, and merger approval is given by board resolution. However, pursuant to Article 527-3 of the Commercial Act, the Company received objection notices from July 23, 2026 to August 6, 2026; a total of 240 shareholders submitted objections to the merger, representing a total of 39,670 shares objected, equal to 0.12% of total issued shares.

IV. Matters Concerning Creditor Protection The surviving company NHN Corporation and the dissolving company NHN Investment Co., Ltd. each published a creditor objection notice on August 11, 2026, and notified each creditor accordingly. No creditor submitted an objection during the creditor objection period (August 11 - September 29, 2026). In addition, no decision was made to repay any debt or provide substantial collateral in connection with this matter.

V. Status of Related Litigation As of the filing date, no litigation has been filed that could affect the validity of this merger.

VI. Matters Concerning New Share Allocation The surviving company NHN Corporation owns 100% of the shares of the dissolving company NHN Investment Co., Ltd., and the absorption merger is carried out at a merger ratio of 1.0000000 : 0.0000000. Accordingly, no new shares will be issued as a result of this merger, and no separate merger consideration has been paid.

VII. Summary Financial Information Before and After the Merger (Unit: KRW thousand) (Columns: Before merger - NHN Corporation (surviving company) | Before merger - NHN Investment Co., Ltd. (dissolving company) | After merger - NHN Corporation (surviving company))

I. Current assets: 211,054,091 / 64,234,596 / 262,684,627 Cash and cash equivalents: 114,802,432 / 61,184,136 / 175,986,568 Short-term financial instruments: 10,000,000 / 3,043,369 / 13,043,369 Financial assets at fair value through profit or loss: - / - / - Trade and other receivables: 84,003,373 / 4,769 / 71,404,082 Inventories: 7,783 / - / 7,783 Other current assets: 2,240,503 / 2,323 / 2,242,826

II. Non-current assets: 1,624,379,239 / 7,464,214 / 1,606,483,576 Financial assets at fair value through profit or loss: 57,581,816 / 3,314,893 / 60,896,709 Financial assets at fair value through other comprehensive income: 41,556,316 / - / 41,556,316 Investments in subsidiaries, associates and joint ventures: 1,122,942,310 / 1,900,171 / 1,099,482,604 Derivative assets: 675,047 / - / 675,047 Trade and other receivables: 168,203,690 / 124,500 / 168,328,190 Deferred tax assets: 44,097,115 / 1,323,898 / 45,421,013 Property and equipment: 142,973,050 / 75 / 142,973,802 Intangible assets: 13,914,105 / 800,000 / 14,714,105 Right-of-use assets: 50,846 / - / 50,846 Investment property: 30,801,663 / - / 30,801,663 Other non-current assets: 1,583,280 / - / 1,583,280

Total assets: 1,835,433,329 / 71,698,811 / 1,869,168,203

I. Current liabilities: 85,313,570 / 12,659,966 / 85,369,476 II. Non-current liabilities: 163,139,905 / - / 163,139,905 Total liabilities: 248,453,474 / 12,659,966 / 248,509,380

I. Capital stock: 18,758,958 / 7,330,000 / 18,758,958 II. Capital surplus: 964,693,963 / 4,366,276 / 964,693,963 III. Other components of equity: -146,386,776 / - / -112,707,808 IV. Accumulated other comprehensive income: -25,187,898 / -244,530 / -25,187,898 V. Retained earnings: 775,101,609 / 47,587,099 / 775,101,609 Total equity: 1,586,979,855 / 59,038,845 / 1,620,658,823

Total liabilities and equity: 1,835,433,329 / 71,698,810 / 1,869,168,203

Note 1: The above pre-merger summary financial information for NHN Corporation and NHN Investment Co., Ltd. is prepared based on separate (non-consolidated) financial statements as of June 30, 2026, and may differ from the financial statements to be prepared as of the actual merger date. Note 2: Of the above summary financial information, the pre-merger financial information for NHN Corporation is based on its reviewed separate (non-consolidated) semi-annual financial statements, and the pre-merger financial information for NHN Investment Co., Ltd. constitutes part of NHN Corporation's reviewed consolidated semi-annual financial statements.