Material event report (convertible bonds)

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What happened

Material event report (decision to issue convertible bonds) 6.4, Sungho Electronics Co., Ltd.

Material event report / Matter subject to Korea Exchange reporting obligation To the Financial Services Commission / Korea Exchange August 6, 2026 Company name: Sungho Electronics Co., Ltd. Representative Director: Park Seong-jae Head office address: Units 1301, 1302, 1401, 205-15 Gasan Digital 1-ro, Geumcheon-gu, Seoul (Tel) 02-2104-7530 (Website) http://www.sungho.net Preparer in charge: (Title) Executive Director (Name) Yoo Jae-hoon (Tel) 02-2104-7500

Decision to issue convertible bonds

1. Type of bonds Round: 20 Type: Unregistered, unsecured, privately placed convertible bonds 2. Total face (electronically registered) amount of the bonds (KRW): 100,000,000,000 2-1. Remaining issuance limit under the articles of incorporation (KRW): 1,796,609,130,415 2-2. (Overseas issuance) Total face (electronically registered) amount (currency unit): -; Base exchange rate, etc.: -; Issuance region: -; Name of the overseas listing market: - 3. Purpose of fund raising Facility funds (KRW): -; Business-acquisition funds (KRW): -; Working capital (KRW): 10,000,000,000; Debt repayment funds (KRW): 90,000,000,000; Funds to acquire securities of another corporation (KRW): -; Other funds (KRW): - 4. Bond interest rate Coupon rate (%): 0.0; Maturity rate (%): 0.0 5. Bond maturity date: August 14, 2029 6. Interest payment method: The coupon rate of these convertible bonds is a fixed 0.0%, and there is no separate interest payment date. 7. Principal repayment method: For the electronically registered amount of these convertible bonds held to maturity, 100% of the electronically registered amount will be repaid in a lump sum on the maturity date. However, if the repayment date is not a business day (a day, other than a public holiday, on which banks in Seoul ordinarily conduct business, excluding days on which only some banks or some branches of banks are open; the same applies hereafter), repayment will be made on the following business day, and no interest will accrue after the maturity date. 8. Bond issuance method: Private placement 9. Matters concerning conversion Conversion ratio (%): 100 Conversion price (KRW/share): 19,114 Method of determining the conversion price: Pursuant to Article 5-22(1) of the Regulation on Issuance and Disclosure of Securities, etc., the conversion price of these bonds is set at 100% of the base price, which is the highest of the following prices calculated retroactively from the day before the issuing company's board resolution date for the issuance of these bonds (August 6, 2026) as the base date, with amounts below one won rounded up. If, after the date of execution of this agreement, an event arises requiring adjustment of the conversion price under item 4 of this section, the adjusted price shall become the conversion price. However, if the conversion price is below the par value of the issuing company's common shares, the par value of the issuing company's common shares shall be the conversion price. (a) The arithmetic average of the issuing company's common shares' one-month volume-weighted average price (the total trading value of the relevant stock traded on the Korea Exchange during that period divided by the total trading volume; the same applies hereafter), one-week volume-weighted average price, and most-recent-day volume-weighted average price (b) The issuing company's common shares' most-recent-day volume-weighted average price

Type of shares to be issued upon conversion: Sungho Electronics Co., Ltd. registered common shares Number of shares: 5,231,767 Ratio to total shares outstanding (%): 6.65 Conversion request period: Start date August 14, 2027; End date July 14, 2029

Matters concerning adjustment of the conversion price: (a) If adjustment of the conversion price is required due to a capital reduction, share split, etc., the price shall be adjusted so that the bondholder of these convertible bonds would have the same effect as if the conversion right had been exercised and the bonds fully converted into shares immediately before the event. If capital reduction and share-split events occur concurrently, the conversion price shall be adjusted taking each ratio into account. If the issuing company fails to take such measures and the bondholder suffers damages as a result, the issuing company shall compensate for such damages. The adjustment date for the conversion price under this item shall be the record date for the capital reduction, share split, etc., or the effective date of the other event. (b) If an event increasing share value arises, such as a capital reduction or share consolidation, the conversion price shall be adjusted upward by the adjustment ratio resulting from the capital reduction, share consolidation, etc. However, if the price calculated (excluding item 3) under the main text of Article 5-22(1) of the Regulation on Issuance and Disclosure of Securities, etc., using the day before the resolution date of the general shareholders' meeting for the capital reduction or share consolidation, etc. as the base date (the "calculated price"), is below par value, and the conversion price has already been adjusted to par value before the base date (excluding cases where the conversion price may be adjusted below par value), the adjusted conversion price shall be set at not less than the calculated price adjusted upward by the adjustment ratio resulting from the capital reduction, share consolidation, etc. (c) If the conversion price adjusted under items (a) or (b) above is at or below the par value of the issuing company's common shares, the par value shall be the conversion price, and the aggregate issue price of the shares to be issued upon exercise of the conversion right granted to each convertible bond may not exceed the issue price of each convertible bond. If the circumstances requiring adjustment of the conversion price under this item occur multiple times, the conversion price shall be adjusted for each occurrence. (d) Amounts below one won in the conversion price adjusted under this item shall be rounded up. (e) Except for conversion-price adjustments due to the events specified in items (a) and (b) above, the conversion price of these convertible bonds is fixed as of the issuance date and will not be adjusted upward or downward for any other reason.

Conversion-price adjustment due to a decline in market price: Minimum adjusted price (KRW) -; Basis for the minimum adjusted price -; Remaining issuance limit that may be adjusted below 70% of the conversion price at issuance (KRW) -

9-1. Matters concerning options [Matters concerning the put option] The bondholder of these convertible bonds may, on February 14, 2028 (18 months from the issuance date of these bonds) and on each date falling every 3 months thereafter (the "early redemption payment date"), request early redemption before maturity for all or part of the electronically registered amount multiplied by the early redemption rate. However, if an early redemption payment date is not a business day, redemption will occur on the following business day, and no interest will accrue after the early redemption payment date.

[Matters concerning the call option] (a) Name of the third party: Seoryong Electronics Co., Ltd., Park Seong-jae (b) Relationship between the third party and the company: Seoryong Electronics Co., Ltd. (largest shareholder), Park Seong-jae (largest shareholder of the largest shareholder), etc. (c) Acquisition scale: Up to KRW 40,000,000,000 (40% call option) (d) Purpose of acquisition: Undetermined as of the issuance date (e) Economic benefit to be obtained by the third party: (i) If the person who may become the third party exercises the call option and then exercises the conversion right on the acquired convertible bonds, that person could acquire 2,092,706 common shares of the Company based on the conversion price, and could thereby hold up to a 2.66% equity stake in the Company. (ii) Monetary benefit: the benefit from conversion may vary depending on the share price level at the time of exercise. * For further details on the early redemption request right (put option) and the sell-back right (call option), please refer to "23. Other matters for reference in investment decisions."

10. Matters concerning merger: - 11. Subscription date: August 14, 2026 12. Payment date: August 14, 2026 13. Payment method: Cash 14. Lead underwriter: - 15. Guarantee institution: - 16. Matters concerning the provision of collateral: - 17. Board resolution (decision) date: August 6, 2026 - Independent (outside) director* attendance: Present 1; Absent - - Attendance of auditor (audit committee member): Present 18. Whether subject to filing of a securities registration statement: No 19. Reason for exemption from filing: Private placement (conversion and face-amount division prohibited for 1 year from the bond issuance date) 20. Whether this falls within a period during which acquisition of these convertible bonds is prohibited due to short selling: No; Start date -; End date - 21. Details of securities lending transactions connected with the overseas issuance of these bonds: - (purpose, number of shares, lender's and borrower's personal details, expected disposal timing, lending terms (period, repayment terms, interest rate), repayment method, connection with the issuance of these convertible bonds, fees, etc.: -) 22. Whether subject to Fair Trade Commission reporting: Not applicable 23. Other matters for reference in investment decisions

[Matters concerning the early redemption request right (put option)] The bondholder of these convertible bonds may, on February 14, 2028 (18 months from the issuance date of these bonds) and on each date falling every 3 months thereafter (the "early redemption payment date"), request early redemption before maturity for all or part of the electronically registered amount multiplied by the early redemption rate. However, if an early redemption payment date is not a business day, redemption will occur on the following business day, and no interest will accrue after the early redemption payment date. (1) Place for early redemption requests: Head office of the issuing company (2) Place for early redemption payment: Industrial Bank of Korea, Namguro Branch (3) Early redemption request period: The bondholder must request early redemption to the Korea Securities Depository from 60 days before to 30 days before the early redemption payment date. However, if the end date of the early redemption request period is not a business day, it shall extend to the following business day.

Round 1: From 2027-12-16 to 2028-01-17; Early redemption payment date 2028-02-14; Early redemption rate 100.0000% Round 2: From 2028-03-15 to 2028-04-14; Early redemption payment date 2028-05-14; Early redemption rate 100.0000% Round 3: From 2028-06-15 to 2028-07-18; Early redemption payment date 2028-08-14; Early redemption rate 100.0000% Round 4: From 2028-09-15 to 2028-10-16; Early redemption payment date 2028-11-14; Early redemption rate 100.0000% Round 5: From 2028-12-16 to 2029-01-15; Early redemption payment date 2029-02-14; Early redemption rate 100.0000% Round 6: From 2029-03-15 to 2029-04-16; Early redemption payment date 2029-05-14; Early redemption rate 100.0000%

(4) Early redemption request procedure: If the bonds are electronically registered in a customer account, the bondholder requests early redemption to the Korea Securities Depository through the relevant account management institution; if electronically registered in the account management institution's own account, the bondholder requests early redemption directly to the Korea Securities Depository, which then consolidates the requests and submits the early redemption request to the place of request.

[Matters concerning the sell-back right (call option)] Seoryong Electronics, etc. have the right (the "call option"), from August 14, 2027 (12 months after the issuance date of these bonds) to February 14, 2028 (18 months after the issuance date) (the "call option exercise period," with the following business day applied if the last day is not a business day), on each date falling every 3 months (the "purchase price payment date"), to request the underwriters to sell to Seoryong Electronics, etc. or a third party designated by Seoryong Electronics, etc., all or part of these bonds, in proportion to each underwriter's underwriting amount of these bonds. The amount for which Seoryong Electronics, etc. may exercise the call option against the underwriters under this section is limited to the maximum call-option-exercisable amount of Seoryong Electronics, etc. under paragraph 1 of this section. However, if a call option is granted to the issuing company's largest shareholder and its related parties (the "largest shareholder, etc."), the quantity of these bonds that the largest shareholder, etc. may purchase may not result in the largest shareholder, etc. acquiring shares of the issuing company in excess of the equity ratio held at the time of issuance of these bonds, and is limited to the amount prescribed in Article 5-21(3) of the Regulation on Issuance and Disclosure of Securities, etc.

(1) Method of exercising the sell-back right: 1. If Seoryong Electronics, etc. wishes to exercise the call option, it must, from 20 days before to 10 days before the purchase-price payment date (the date specified in item 3), notify the underwriters in writing (the "call option exercise notice") of the person exercising the call option, the person who will purchase these bonds through exercise of the call option, the electronically registered amount of the bonds subject to the call option exercise (the "call-option bonds"), the purchase price, and the purchase-price payment date, etc.; the sale and purchase contract for the call-option bonds between the underwriter and Seoryong Electronics, etc. or the third party designated by Seoryong Electronics, etc. shall be deemed concluded on the date the call option exercise notice reaches each underwriter. However, for the 3rd call-option request period, the notice period shall be from 50 days before to 20 days before the 3rd purchase-price payment date. (2) Purchase price: The purchase price upon exercise of the call option shall be the sum of the electronically registered amount of the call-option bonds and the amount calculated by applying an annual compound interest rate of 0.1% from the issuance date of these bonds to the purchase-price payment date.

Round 1: Call option request period From 2027-07-25 to 2027-08-04; Purchase-price payment date 2027-08-14; Applicable rate upon exercise of the call option 100.1000% Round 2: Call option request period From 2027-10-25 to 2027-11-04; Purchase-price payment date 2027-11-14; Applicable rate upon exercise of the call option 100.1251% Round 3: Call option request period From 2027-12-26 to 2028-01-25; Purchase-price payment date 2028-02-14; Applicable rate upon exercise of the call option 100.1503%

(3) Delivery of the bonds: Upon receiving the above purchase price, the underwriter shall deliver the call-option bonds to Seoryong Electronics, etc. (or the third party designated by Seoryong Electronics, etc.) by electronically registering them in an electronic registration account in accordance with the Act on Electronic Registration of Stocks, Bonds, etc. If an underwriter fails to deliver the call-option bonds on the purchase-price payment date, the underwriter shall pay, as a penalty separate from any damages, an amount calculated at an annual rate of 12% on the purchase price, from the purchase-price payment date until the date the call-option bonds are actually delivered. (4) Mandatory holding of the bonds by the bondholders: To guarantee Seoryong Electronics, etc.'s exercise of the call option under this section, the underwriters must hold 40% of the total electronically registered amount of these bonds in unconverted form during the call option exercise period. (5) The largest shareholder and its related parties shall have their exercise of the call option limited to within their equity ratio at the time of issuance of these bonds.

[Bond issuance details by specific allottee] (all allottees below were selected on the basis: "Selected considering the investor's payment capacity and timing, future relationship with the company, etc., for the purpose of raising funds needed for the company's management objectives"; no transaction history/plans within 6 months and no remarks were disclosed for any allottee except where noted)

Allottee: NH Investment & Securities Co., Ltd. (as trustee of Fund 1); Face (electronically registered) amount issued (KRW): 2,000,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 2); Face amount: 1,000,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 3); Face amount: 500,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 4); Face amount: 500,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 5); Face amount: 500,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 6); Face amount: 1,000,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 7); Face amount: 1,000,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 8); Face amount: 1,000,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 9); Face amount: 700,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 10); Face amount: 1,300,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 11); Face amount: 1,000,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 12); Face amount: 3,000,000,000 Allottee: Korea Investment & Securities Co., Ltd. (trustee of Fund 13); Face amount: 2,000,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 14); Face amount: 2,500,000,000 Allottee: Shinhan Investment Corp. (trustee of Fund 15); Face amount: 500,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 16); Face amount: 1,000,000,000 Allottee: Samsung Securities Co., Ltd. (trustee of Fund 17); Face amount: 500,000,000 Allottee: Samsung Securities Co., Ltd. (trustee of Fund 18); Face amount: 1,000,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 19); Face amount: 500,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 20); Face amount: 500,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 21); Face amount: 1,000,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 22); Face amount: 2,500,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 23); Face amount: 4,000,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 24); Face amount: 120,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 25); Face amount: 280,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 26); Face amount: 90,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 27); Face amount: 520,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 28); Face amount: 370,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 29); Face amount: 170,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 30); Face amount: 90,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 31); Face amount: 160,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 32); Face amount: 550,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 33); Face amount: 390,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 34); Face amount: 260,000,000 Allottee: KB Securities Co., Ltd. (trustee of Fund 35); Face amount: 500,000,000 Allottee: Samsung Securities Co., Ltd. (trustee of Fund 36); Face amount: 1,000,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 37); Face amount: 500,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 38); Face amount: 500,000,000 Allottee: NH Investment & Securities Co., Ltd. (trustee of Fund 39); Face amount: 500,000,000 Allottee: Korea Investment & Securities Co., Ltd. (trustee of Fund 40); Face amount: 1,000,000,000 Allottee: Korea Investment & Securities Co., Ltd. (trustee of Fund 41); Face amount: 1,000,000,000 Allottee: IBK Capital Corporation; Face amount: 4,000,000,000 Allottee: Woongjin Freedlife Co., Ltd.; Face amount: 5,000,000,000 Allottee: Sindonghae Partners Co., Ltd.; Face amount: 5,000,000,000 Allottee: Pureun Investment Co., Ltd. (Note 1); Face amount: 15,000,000,000 Allottee: S&S Gravity M&A No. 1 Investment Association; Face amount: 9,500,000,000 Allottee: PHI Investment Association (Note 2); Face amount: 20,000,000,000 Allottee: Moon Jae-ho; Face amount: 4,000,000,000

(Note 1) The status of Pureun Investment Co., Ltd. as a subscriber under this third-party allotment is scheduled to be changed to a new-technology investment association to be established with Pureun Investment Co., Ltd. as managing partner; the name and details will be disclosed by amendment once the association is established and finalized. (Note 2) The status of PHI Investment Association as a subscriber under this third-party allotment is scheduled to be changed to a new-technology investment association (tentatively named "PHI Investment Association") to be established with it as managing partner; the name and details will be disclosed by amendment once the association is established and finalized.

[Collective investment vehicles / asset managers / trustees] Fund 1: Koramco KOSDAQ Venture General Private Placement Investment Trust No. 47 (Professional) / Koramco Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 2: EIP ESG KOSDAQ Venture General Private Placement Investment Trust No. 5 / EIP Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 3: Fibonacci KOSDAQ Venture General Private Placement Investment Trust No. 2 / Fibonacci Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 4: Broadhai Everest KOSDAQ Venture General Private Placement Investment Trust No. 1 / Broadhai Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 5: Broadhai Everest KOSDAQ Venture General Private Placement Investment Trust No. 3 / Broadhai Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 6: Sun & Tree Venture Enterprise Investment General Private Placement Investment Trust No. 7 / Sun & Tree Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 7: Queensguard KOSDAQ Venture General Private Placement Investment Trust No. 12 / Queensguard Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 8: IPM KOSDAQ Venture General Private Placement Investment Trust No. 1 / IPM Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 9: iTrust Mezzanine KOSDAQ Venture General Private Placement Securities Investment Trust No. 7 / iTrust Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 10: iTrust Mezzanine KOSDAQ Venture General Private Placement Securities Investment Trust No. 9 / iTrust Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 11: KY KOSDAQ Venture General Private Placement Investment Trust No. 5 / KY Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 12: Life IPO KOSDAQ Venture General Private Placement Investment Trust No. 14 / Life Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 13: CL KOSDAQ Venture General Private Placement Investment Trust No. 3 / CL Asset Management Co., Ltd. / Korea Investment & Securities Co., Ltd. Fund 14: Mark KOSDAQ Venture General Private Placement Investment Trust No. 13 / Mark Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 15: Mark KOSDAQ Venture General Private Placement Investment Trust No. 14 / Mark Asset Management Co., Ltd. / Shinhan Investment Corp. Fund 16: Korea KOSDAQ Venture General Private Placement Investment Trust No. 3 / Korea Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 17: QB Walnut Tree KOSDAQ Venture General Private Placement Investment Trust (Professional) / Quarterback Asset Management Co., Ltd. / Samsung Securities Co., Ltd. Fund 18: Seoul Asset Mezzanine KOSDAQ Venture General Private Placement Investment Trust No. 3 / Seoul Asset Management Co., Ltd. / Samsung Securities Co., Ltd. Fund 19: Milestone KOSDAQ Venture General Private Placement Investment Trust No. 5 / Milestone Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 20: Milestone KOSDAQ Venture Heritage General Private Placement Investment Trust / Milestone Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 21: Milestone KOSDAQ Venture General Private Placement Investment Trust No. 6 / Milestone Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 22: Alpha KOSDAQ Venture General Private Placement Securities Investment Trust No. 3 / Alpha Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 23: Alpha KOSDAQ Venture General Private Placement Securities Investment Trust No. 4 / Alpha Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 24: Tiger KOSDAQ Venture Miracle 332 General Private Placement Investment Trust / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 25: Tiger KOSDAQ Venture Jump 334 General Private Placement Investment Trust (Professional Investor) / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 26: Tiger KOSDAQ Venture Triple 333 General Private Placement Investment Trust (Professional Investor) / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 27: Tiger KOSDAQ Venture Turbo 336 General Private Placement Investment Trust / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 28: Tiger KOSDAQ Venture Power Mezzanine 337 General Private Placement Investment Trust / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 29: Tiger KOSDAQ Venture Euddeum 338 General Private Placement Investment Trust / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 30: Tiger KOSDAQ Venture Prism 339 General Private Placement Investment Trust / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 31: Tiger KOSDAQ Venture Synergy 341 General Private Placement Investment Trust / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 32: Tiger KOSDAQ Venture Mezzanine Forward 340 General Private Placement Investment Trust (Professional Investor) / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 33: Tiger KOSDAQ Venture Clover 342 General Private Placement Investment Trust / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 34: Tiger KOSDAQ Venture Viva 343 General Private Placement Investment Trust / Tiger Asset Management & Investment Advisory Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 35: Focus Vega KOSDAQ Venture General Private Placement Investment Trust No. 1 / Focus Asset Management Co., Ltd. / KB Securities Co., Ltd. Fund 36: Bogo Alpha Plus Public Offering Stock Venture Enterprise General Private Placement Investment Trust No. 5 / Bogo Fund Asset Management Co., Ltd. / Samsung Securities Co., Ltd. Fund 37: Lefuture KOSDAQ Venture General Private Placement Investment Trust No. 1 / Lefuture Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 38: Lefuture KOSDAQ Venture General Private Placement Investment Trust No. 5 / Lefuture Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 39: Mellon KOSDAQ Venture General Private Placement Investment Trust No. 2 / Mellon Asset Management Co., Ltd. / NH Investment & Securities Co., Ltd. Fund 40: KCGI Alternative KOSDAQ Venture General Private Placement Investment Trust No. 4 / KCGI Alternative Investment Management Co., Ltd. / Korea Investment & Securities Co., Ltd. Fund 41: KP KOSDAQ Venture General Private Placement Trust No. 1 / KP Asset Management Co., Ltd. / Korea Investment & Securities Co., Ltd.

[Where the corporation or organization subject to bond issuance becomes a shareholder through the exercise of rights] (1) Basic information: Name Woongjin Freedlife Co., Ltd.; Representative director Moon Ho-sang; Largest shareholder (largest investor) W.J. Life Co., Ltd., 74.82% (2) Key financial matters for the most recent fiscal year (Unit: KRW million): Fiscal year 2025; Settlement period 24th fiscal term; Total assets 3,282,276; Revenue 309,504; Total liabilities 3,031,071; Net income 75,431; Total equity 251,205; External auditor Samil PricewaterhouseCoopers; Capital 8,036; Audit opinion Unqualified

[Where the corporation or organization subject to bond issuance becomes a shareholder through the exercise of rights] (1) Basic information: Name Sindonghae Partners Co., Ltd.; Number of investors 1; Representative director An In-seong, 100%; Largest shareholder (largest investor) An In-seong, 100% (2) Key financial matters for the most recent fiscal year: all items "-" Method of fund procurement: Own funds. (as stated in the filing: circumstances of formation and investment purpose are left blank in the source)

[Where the corporation or organization subject to bond issuance becomes a shareholder through the exercise of rights] (1) Basic information: Name Pureun Investment Co., Ltd. (Note 1); Number of investors 1; Representative director Kang Ki-hoon; Largest shareholder (largest investor) Pureun Partners Asset Management Co., Ltd., 100% (Note 1) The status of Pureun Investment Co., Ltd. as a subscriber under this third-party allotment is scheduled to be changed to a new-technology investment association to be established with Pureun Investment Co., Ltd. as managing partner (tentatively named "Pureun UIL New Technology Investment Association No. 1"); the name and details will be disclosed by amendment once the association is established and finalized. (2) Key financial matters for the most recent fiscal year (Unit: KRW million): Fiscal year 2025; Settlement period 5th fiscal term; Total assets 14,756; Revenue 5,993; Total liabilities 1,676; Net income 2,679; Total equity 13,079; External auditor Samdo Accounting Corporation; Capital 10,200; Audit opinion Unqualified

[Where the corporation or organization subject to bond issuance becomes a shareholder through the exercise of rights] (1) Basic information: Name S&S Gravity M&A No. 1 Investment Association; Number of investors 23; Representative partner S&S Investment Co., Ltd., 0.55%; Managing partner S&S Investment Co., Ltd., 0.55% / Gravity Private Equity Co., Ltd., 0.45%; Largest shareholder (largest investor) KDB Capital Corporation, 27.27% (2) Key financial matters for the most recent fiscal year (Unit: KRW million): Fiscal year 2025; Settlement period 12; Total assets 10,982; Revenue 0; Total liabilities 0; Net income (loss) -18; Total equity 10,982; External auditor Bomyeong Accounting Corporation; Capital 11,000; Audit opinion Unqualified

[Where the corporation or organization subject to bond issuance becomes a shareholder through the exercise of rights] (1) Basic information: Name PIH Investment Association (Note 2); all other fields "-" (Note 2) The status of PIH Investment Association as a subscriber under this third-party allotment is scheduled to be changed to a new-technology investment association (tentatively named "PIH Investment Association") to be established with it as managing partner; the name and details will be disclosed by amendment once the association is established and finalized. (2) Key financial matters for the most recent fiscal year: all items "-"

[Specific purpose of use of the funds raised] [In the case of debt repayment funds] (Unit: KRW million, %) Item: Long-term borrowings; Lender: Seoryong Electronics Co., Ltd.; Borrowed amount: 90,000; Borrowing date: April 14, 2026; Maturity date: April 14, 2028; Interest rate: 4.6

[In the case of working capital/other funds] (Unit: KRW million) Fund use: Working capital; Details: Costs of product manufacturing and raw/subsidiary material purchases; Planned amount by year: 2026 10,000; 2027 -; 2028 and after -; Total 10,000

[Matters concerning outstanding bonds convertible into/exercisable for shares] Type: 14th-round bonds with warrants; Outstanding balance (KRW): 6,390,869,585; Conversion (exercise) price (KRW): 1,659; Convertible (exercisable) shares (shares): 3,852,242; Conversion (exercise) period: October 2, 2025 - September 2, 2026; Remarks: Note 1 Type: 16th-round convertible bonds; Outstanding balance: 12,000,000,000; Conversion price: 1,150; Convertible shares: 10,434,782; Conversion period: February 1, 2027 - July 1, 2028; Remarks: - Type: 17th-round convertible bonds; Outstanding balance: 5,000,000,000; Conversion price: 1,150; Convertible shares: 4,347,826; Conversion period: August 1, 2026 - July 1, 2028; Remarks: Note 2 Type: 18th-round convertible bonds; Outstanding balance: 50,000,000,000; Conversion price: 2,895; Convertible shares: 17,271,157; Conversion period: January 7, 2027 - December 7, 2028; Remarks: - Type: 19th-round bonds with warrants; Outstanding balance: 30,000,000,000; Exercise price: 2,895; Exercisable shares: 10,362,694; Exercise period: January 7, 2027 - December 7, 2028; Remarks: - Subtotal: 103,390,869,585; convertible/exercisable shares (A) 46,268,701 Newly issued bonds: 100,000,000,000; conversion price 19,114; convertible shares (B) 5,231,767; conversion period August 14, 2027 - July 14, 2029; Remarks: - Total: 203,390,869,585; 51,500,468 shares Previously issued total shares (C): 73,433,552 Ratio of (A+B) to previously issued total shares (%) (D=(A+B)/C): 70.13

Note 1) The 14th-round bonds with warrants are own bonds that the Company acquired and currently holds through exercise of its sell-back right (call option) on October 2, 2025. For further details, please refer to the "Pre-Maturity Acquisition of Bonds with Warrants (Including Overseas Bonds with Warrants) After Issuance" disclosure filed on October 2, 2025. Note 2) The 17th-round convertible bonds are own bonds that the Company acquired and currently holds through exercise of its sell-back right (call option) on August 3, 2026. For further details, please refer to the "Material Event Report (Decision to Redeem Own Convertible Bonds Before Maturity)" disclosure filed on June 9, 2026.