Material event report (CB call option holder designated)

What happened

Material Event Report (CB Call-Option Holder Designated) 6.0 Linked Co., Ltd.

Material Event Report To: Financial Services Commission August 25, 2026 Company name: Linked Co., Ltd. CEO: Min Yong-jae Head office address: 16 Teheran-ro 78-gil, Room 1001 (Daechi-dong, Nobel Building), Gangnam-gu, Seoul Phone: 02-6011-2999 Website: www.linkedseoul.com Preparer: (Title) Managing Director, (Name) Ji Jae-bok, (Phone) 02-6011-2999

CB Call-Option Holder Designated

1. Type of bonds Series: 5 Type: Unregistered, interest-bearing, unsecured, privately placed convertible bonds

2. Bond issuance date: November 26, 2025 3. Bond issuance method: Private placement 4. Bond maturity date: November 26, 2030 5. Whether this is a holder designation or a transfer: Holder designation 6. Details of the call-option holder designation (transfer) Face (electronically registered) amount of bonds subject to designation (transfer) (KRW) (A): 488,000,000 Total face (electronically registered) amount of the relevant convertible bonds (KRW) (B): 2,000,000,000 Designation ratio (%) (A/B): 24.4

7. Date of holder designation (transfer date): August 25, 2026 8. Designation consideration (transfer amount) Amount (KRW): 48,800,000 Basis: 10% of the face (electronically registered) amount of the covered bonds

9. Expected date of receipt of designation consideration (transfer proceeds): August 31, 2026

10. Conversion details Conversion ratio (%): 100 Conversion price as of the reporting date (KRW/share): 1,558 Type of shares to be issued upon conversion: Linked Co., Ltd. registered common stock Number of shares: 313,220 Ratio to total shares outstanding (%): 2.29 Conversion request period: Start date November 26, 2026; End date October 26, 2030

11. Whether subject to Fair Trade Commission filing: Not applicable

12. Other matters material to investment decisions - The designation consideration (transfer amount) in "8." above is not refunded regardless of whether the buyer exercises the call option (right to demand sale) on the convertible bonds.

[Matters relating to the call option (CALL OPTION)] (a) Method of exercising the call option: A buyer wishing to exercise the call option must, from 60 days to 30 days before the purchase-price payment date in (b) below, notify the bondholder in writing of the quantity of bonds to be purchased, the payment date and the purchase price; the resulting sale-and-purchase contract is deemed concluded when the buyer's notice reaches the bondholder. If the end of the exercise period is not a business day, it is extended to the next business day. (b) Purchase price: the purchase price is the call-option exercise amount multiplied by the call-option redemption rate below, computed using a quarterly-compounded annual rate of 1.0%. If the payment date is not a banking business day, payment is made the next business day with no additional interest after that date; interest accrues daily on a 365-day-year basis. Exercise period 1: 2026-03-27 to 2026-04-26; payment date 2026-05-26; redemption rate 100.4946% of the electronically registered amount Exercise period 2: 2026-06-27 to 2026-07-27; payment date 2026-08-26; redemption rate 100.7470% of the electronically registered amount Exercise period 3: 2026-09-27 to 2026-10-27; payment date 2026-11-26; redemption rate 101.0000% of the electronically registered amount Exercise period 4: 2026-12-28 to 2027-01-27; payment date 2027-02-26; redemption rate 101.2536% of the electronically registered amount (c) Payment and delivery: the buyer pays the purchase price to the bondholder on the payment date in the manner the bondholder specifies; the bondholder, on receiving payment, delivers the bonds to the buyer by electronic registration under the Act on Electronic Registration of Stocks, Bonds, etc. If the payment date is not a business day, payment is made the next business day with no additional interest after the original date. A buyer who fails to pay on the payment date owes default interest from the day after that date to actual payment, per Article 4(13) of the underlying agreement. (1) Scope of exercise: the buyer may not exercise the call option against any bondholder for more than 30% of that bondholder's face amount at issuance. The issuer's largest shareholder and related parties may not, through call-option exercise, acquire shares exceeding their respective ownership percentages as of the bond's issuance date; the same cap applies if the issuer resells call-option bonds to the largest shareholder or related parties. (2) Bondholder's mandatory retention: to secure the issuer's call option, each bondholder must keep 30% of its issuance-date underwriting amount unexercised until the end of the exercise period in (b), except where the issuer has lost the benefit of time under Article 4.24 of the agreement. (3) Preserving the call option on transfer: notwithstanding the agreement's restrictions on resale, splitting and consolidation of the bonds, a bondholder transferring these bonds may do so only in a way that preserves the transferee's exposure to the call option and mandatory-retention obligation; a transfer violating this is void, and once validly transferred the original bondholder's obligations (including honoring the buyer's call option) are extinguished to the extent transferred.

[Selection rationale, transaction history and designation consideration by designee] Designee: Min Yong-jae; Relationship with the company or largest shareholder: Largest shareholder (self); Selection rationale: Selected by the board for purposes incidental to the company's business and management objectives; Transaction within 6 months before/after designation date: Subscriber in a third-party-allotment rights offering, payment date February 27, 2026; Face amount designated (KRW): 188,000,000; Designation consideration (KRW): 18,800,000 Designee: Agile Stone Co., Ltd.; Relationship: Related party of the largest shareholder; Selection rationale: Selected by the board for purposes incidental to the company's business and management objectives; Transaction: Subscriber in a third-party-allotment rights offering, payment date February 27, 2026; Face amount designated (KRW): 180,000,000; Designation consideration (KRW): 18,000,000 Designee: Rin Corner Stone Co., Ltd.; Relationship: Related party of the largest shareholder; Selection rationale: Selected by the board for purposes incidental to the company's business and management objectives; Transaction: none stated; Face amount designated (KRW): 120,000,000; Designation consideration (KRW): 12,000,000

[Among the designees, those who are the company's largest shareholder or a related party] Min Yong-jae; Relationship: Largest shareholder (self); Shares held at bond issuance: 6,081,204 (9.415%); Shares to be issued upon conversion: 120,667 (9.400%) Agile Stone Co., Ltd.; Relationship: Related party; Shares held at issuance: 5,985,515 (9.267%); Shares to be issued upon conversion: 115,532 (9.000%) Rin Corner Stone Co., Ltd.; Relationship: Related party; Shares held at issuance: 4,023,531 (6.229%); Shares to be issued upon conversion: 77,021 (6.000%)

[Among the designees, corporations or organizations] (1) Basic information - Agile Stone Co., Ltd.: Number of investors: 3; Representative director: Kim Young-sun; Largest shareholder (largest investor): Min Yong-jae, 40% stake (2) Key financial details, most recent fiscal year (unit: KRW million), FY2025, settlement month December: Total assets: 4,208; Revenue: 0; Total liabilities: 4,924; Net income: 384; Total equity: -716; External auditor: none; Capital stock: 570; Audit opinion: none

(1) Basic information - Rin Corner Stone Co., Ltd.: Number of investors: 1; Representative director: Kim Young-sun; Largest shareholder (largest investor): Min Yong-jae, 100% stake (2) Key financial details, most recent fiscal year (unit: KRW million), FY2025, settlement month December: Total assets: 9,491; Revenue: 0; Total liabilities: 9,943; Net income: -1; Total equity: -452; External auditor: none; Capital stock: 500; Audit opinion: none