Rights offering: final issue price set

What happened

LB Semicon / Rights Offering: Final Issue Price Set / (2026.07.30) Rights Offering: Final Issue Price Set Rights Offering: Final Issue Price Set

1. Planned issuance details (a) Type of shares: Registered common stock (b) Number of shares: 12,000,000

2. Final issue price (per share) (a) Final price (KRW): 2,855 (b) First issue price (KRW): 4,125 (c) Second issue price (KRW): 2,855

3. Par value (KRW): 500 4. Determination date: 2026-07-29

5. Other matters for investment reference Under Article 5-18 (Determination of Rights-Offering Issue Price) of the Regulation on Issuance and Disclosure of Securities, the discount rate, etc. for a shareholder-allotted rights offering has been liberalized and may be freely determined; however, out of concern for market disruption and in line with existing practice, the company will determine the issue price applying, in part, Article 57 of the former Regulation on Issuance and Disclosure of Securities.

(1) Determination of the first issue price: Using the third trading day before the new-share allotment record date as the base date, the benchmark price is the lower of (i) the simple average of the one-month volume-weighted average price, the one-week volume-weighted average price, and the base-date volume-weighted average price on the KOSDAQ market, and (ii) the base-date volume-weighted average price; determined by the formula below applying a 20% discount rate (amounts below the quotation unit are rounded up to the nearest quotation unit, and if the resulting price is below par value, par value applies). First issue price = [benchmark price x (1 - discount rate)] / [1 + (capital increase ratio x discount rate)]

(2) Second issue price: Using the third trading day before the first day of subscription by existing shareholders as the base date, the benchmark price is the lower of (i) the simple average of the one-week volume-weighted average price and the base-date volume-weighted average price on the KOSDAQ market, and (ii) the base-date volume-weighted average price; determined by the formula below applying a 20% discount rate (same rounding and par-value floor as above). Second issue price = benchmark price x (1 - discount rate)

(3) Final issue price: the lower of the first and second issue prices. However, under Article 165-6 of the Financial Investment Services and Capital Markets Act and Article 5-15-2 of the Regulation on Issuance and Disclosure of Securities, if that lower price is below the price obtained by applying a 40% discount to the volume-weighted average price from the 3rd to the 5th trading day before the subscription date, that latter price (with the same rounding and par-value floor) becomes the final issue price.

Related disclosures: 2026-07-30: Decision on rights offering (shareholder allotment with general public offering of forfeited shares) 2026-07-14: Securities registration statement (equity securities) 2026-06-17: Prospectus