Regular MSB Fixed Rate Tender Issuance Announcement

Regular MSB Fixed Rate Tender Issuance Announcement Jul 21, 2026 The Bank of Korea hereby announces the regular MSB fixed rate tender issuance for July 2026 as follows.

1. Eligible MSBs
2. Issue method: fixed rate tender*

• The planned issue amount will be allocated in proportion to the amount applied for at the pre-announced rate on the bid day. ㅇ Auction date: 11:00~11:10 Jul 22 (Wed) 2026 ㅇ Settlement date: 16:00 Jul 23 (Thu) 2026 ※ For details, please refer to the Appendix titled ‘Details of Monetary Stabilization Bond Fixed Rate Tender Issuance’. To be purchased Maturity date Scheduled issue amount Ceiling 2-yr Tender Ⅰ 03730-2807-0201 Jul 2, 2028 240 billion won Top 50% institutions 90 billion won Bottom 50% institutions 40 billion won Tender Ⅱ 03730-2807-0202 Jul 2, 2028 160 billion won 80 billion won 3-yr Tender Ⅰ 03340-2903-0311 Mar 3, 2029 120 billion won Top 50% Institutions 40 billion won Bottom 50% institutions 20 billion won Tender Ⅱ 03340-2903-0312 Mar 3, 2029 80 billion won 40 billion won Total - - 0.6 trillion won

(Appendix) Details of Monetary Stabilization Bond Fixed Rate Tender Issuance

1. Principal and Interest Payment ㅇ Principal: Principal is repaid in full on the repayment date (the principal and interest payment are to be made on the next business day if the payment date falls on a public holiday) ㅇ Interest payment: Interest is paid in arrears every three months
2. Securities issuance: Electronic registration
3. Details of Fixed rate tender A. Overview ㅇ Method: Electronic bidding through BOK-Wire+ ㅇ Date and time: Refer to the Notice ㅇ Scheduled tender amount: Refer to the Notice ※ Please adhere to the regulations and procedures specified in the "the Open Market Operations Regulations," "Open Market Operations Rules," "Bidding Procedures for Open Market Operations," and "Procedures for Handling Affairs Related to Open Market Operations," as well as the auction announcement for any other necessary matters. B. Bidding Process ㅇ Eligible bidders: Institutions eligible for open market operations (excluding institutions subject to bidding restrictions) ㅇ Deposit: exempt ㅇ Bid amount: The minimum bid amount is 10 billion won, and any amount above that should be in multiples of 10 billion won – One institution can make one bid offer for each MSB. ㅇ Limits of bid amount

• TenderⅠ: The bid amount limit for participants with evaluation scores within the top 50% according to the evaluation method of Open Market Operations Rules is up to 40% of the scheduled issue amount for each MSB in Tender I. For applicants with evaluation scores below 50%, the limit is up to 20% of the scheduled issue amount for each MSB in Tender I.
• TenderⅡ: The bid amount limit for applicants is up to 50% of the scheduled issue amount for each MSB in Tender II. C. Allocation ㅇ The allocated amount shall be the bid amount, but if the bid amount exceeds the scheduled issue amount, it will be allocated in increments of 10 billion won in proportion to the bid amount within the scheduled issue amount. D. Tender rate

ㅇ The tender rate will be determined and announced on the day of auction reflecting market conditions (at around 10:50 a.m.). E. Settlement date: Refer to the Notice. ㅇ Each winning bidder will pay at the winning rate (in their current accounts with the Bank of Korea) ㅇ The calculation of the issue unit price is in units of one million won (rounding down for amounts less than one million won). <Formula for calculating unit issue price> 발행가액 =              ×              ×        

 : face value,  : coupon rate,  : issue yield  : number of interest payments per year  : number of remaining interest payments  : number of days from the day following the sales date to the next interest payment due date  : number of days from the day after the last interest payment due date (or issue date if no interest is due) to the next interest payment due date