Rights offering: new share issue price (notice)

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Samsung Biologics/Rights Offering: New Share Issue Price (Notice)/(2026.10.01) Rights Offering: New Share Issue Price (Notice)

Rights Offering: New Share Issue Price (Notice) 1. Category: New share issuance price as of the new share allocation record date 2. Issuance Price per Share: Common shares (KRW): 1,174,000; Special class shares (KRW): - 3. Other Matters for Investment Reference ※ The issuance price per share in this notice is the 1st issuance price; the confirmed issuance price will be disclosed on November 5, 2026 according to the formula below.

■ Method of Determining the Issuance Price 1) Expected Issuance Price: The base date is the day before the board resolution date (August 27, 2026). The expected issuance price is calculated by applying a 15% discount to the lower of (i) the arithmetic average of the 1-month volume-weighted average price, 1-week volume-weighted average price, and closing price on the KOSPI market as of the base date, and (ii) the closing price on the base date, using the capital increase ratio (number of new shares / total shares issued) in the formula below. Amounts below the quotation unit are rounded up, and if at or below par value, par value is used as the issuance price. * Expected issuance price = [reference price x (1 - discount rate)] / [1 + (capital increase ratio x discount rate)] 2) 1st Issuance Price: The base date is the 3rd trading day before the new share allocation record date (September 30, 2026). The 1st issuance price is calculated by applying a 15% discount to the lower of (i) the arithmetic average of the 1-month volume-weighted average price, 1-week volume-weighted average price, and closing price on the KOSPI market as of the base date, and (ii) the closing price on the base date, using the capital increase ratio in the formula below. Amounts below the quotation unit are rounded up, and if at or below par value, par value is used. * 1st issuance price = [reference price x (1 - discount rate)] / [1 + (capital increase ratio x discount rate)] 3) 2nd Issuance Price: The base date is the 3rd trading day before the existing-shareholder subscription date (November 4, 2026). The 2nd issuance price is determined using the lower of (i) the arithmetic average of the 1-week volume-weighted average price and closing price on the KOSPI market as of the base date, and (ii) the closing price on the base date, applying a 15% discount. Amounts below the quotation unit are rounded up, and if at or below par value, par value is used as the issuance price. * 2nd issuance price = reference price x (1 - discount rate) 4) Confirmed Issuance Price: The confirmed issuance price is the lower of the 1st and 2nd issuance prices. However, pursuant to 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 the lower of the 1st and 2nd issuance prices is lower than the price calculated by applying a 40% discount to the volume-weighted average price for the 3rd through 5th trading days before the subscription date, that 40%-discounted price shall be used as the confirmed issuance price. ※ The general public offering issuance price shall be the same as the confirmed issuance price applied to the employee stock ownership association and existing shareholder subscriptions.

※ Related Disclosures 2026-08-28 Rights Offering Decision 2026-08-28 Securities Registration Statement (Equity Securities) 2026-09-11 Securities Registration Statement (Equity Securities) 2026-09-14 Prospectus