Wysol Acquires 100% of NRLab from Daeduck for KRW 18.9B to Secure Tx Module Tech

Decision on Acquisition of Shares and Equity Securities of Other Corporations — Report on Material Management Matters of Subsidiary Wysol Co., Ltd. (Disclosure date: 2026-06-23) 1. Issuing Company - Company name (nationality): NRLab Co., Ltd. - CEO: Lee Jung-soo - Capital stock (KRW): 40,000,000,000 - Relationship with company: Affiliated company - Total shares issued: 8,000,000 - Main business: Electronic components manufacturing - Acquisition of new shares via third-party allotment within the past 6 months: No 2. Acquisition Details - Shares acquired: 8,000,000 - Acquisition amount (KRW): 18,896,000,000 - Equity capital (KRW): 294,706,144,811 - Ratio to equity capital: 6.4% - Large enterprise: Applicable 3. Shares Owned and Stake Ratio After Acquisition - Shares owned: 8,000,000 - Ownership ratio: 100% 4. Acquisition Method: Cash acquisition 5. Acquisition Purpose: Securing Tx module technology and improving operating efficiency of the RF business 6. Scheduled Acquisition Date: 2026-06-23 7. Subject to Submission of Material Report on Asset Transfer: No - Total assets at end of latest fiscal year (KRW): 346,238,781,672 - Acquisition price / total assets: 5.5% 8. Backdoor Listing Applicability: Not applicable - Plans for third-party allotment capital increase within next 6 months: Not applicable 9. Backdoor Listing Eligibility of Issuing Company: Not applicable 10. Date of Board Resolution: 2026-06-23 - Outside director attendance: 1 attended, 0 absent - Auditor (audit committee) attendance: Attended 11. Subject to Fair Trade Commission Reporting: Not applicable 12. Put Option or Similar Contract: No - Contract details: None 13. Other Matters for Investment Consideration - This disclosure relates to the company acquiring all shares of the issuing company (8,000,000 shares, 100% of total issued shares) from the existing shareholder Daeduck Co., Ltd. - The 'equity capital' in item 2 and 'total assets at end of latest fiscal year' in item 7 are based on the company's consolidated financial statements as of end-2025. - The 'current year', 'prior year', and 'two years ago' in the summary financials below refer to fiscal years 2025, 2024, and 2023, respectively. - All authority over the decisions and execution of detailed matters, including timing of investment amounts, rests with the CEO or a designee appointed by the CEO. [Summary Financial Status of Issuing Company] (Unit: KRW million) - Current year (2025): Total assets 30,041 / Total liabilities 12,617 / Total equity 17,425 / Capital stock 40,000 / Revenue 79,145 / Net income 3,328 - Prior year (2024): Total assets 26,498 / Total liabilities 12,395 / Total equity 14,103 / Capital stock 40,000 / Revenue 75,916 / Net income 3,577 - Two years ago (2023): Total assets 18,900 / Total liabilities 8,250 / Total equity 10,650 / Capital stock 40,000 / Revenue 62,208 / Net income -61 [Counterparty Information] 1. Personal Information - Name: Daeduck Co., Ltd. - Nationality: Republic of Korea - Head office address: Moknae-dong, Danwon-gu, Ansan-si, Gyeonggi-do - Business registration number: 134-81-06363 - Business: Holding company - Largest shareholder: Kim Young-jae (7,368,082 shares, 21.74%) - CEO: Same as above - Fiscal year 2025 (Unit: KRW million): Settlement period 54 / Total assets 1,838,110 / Capital stock 17,551 / Total liabilities 388,481 / Revenue 1,384,990 / Total equity 1,449,630 / Net income 6,226 - External auditor: Ernst & Young Han Young / Business suspension: No / Audit opinion: Unqualified / Business closure: No 2. Relationship with Counterparty - Relationship with company: Largest shareholder - Relationship of company's largest shareholder/executives with counterparty: Daeduck Co., Ltd. is the largest shareholder itself 3. Transactions in the Past 3 Years (excluding ordinary transactions): None for current year, prior year, or two years ago