BNC Banco Santander S.a.

SOLE DEALER MANAGER

Boadilla del Monte (Madrid), 23 September 2024

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN OR INTO OR TO ANY PERSON LOCATED OR RESIDENT IN ANY JURISDICTION WHERE OR TO WHOM IT IS UNLAWFUL TO RELEASE, PUBLISH OR DISTRIBUTE THIS ANNOUNCEMENT.

ADDITIONAL INFORMATION

This announcement must be read in conjunction with the Tender Offer Memorandum. This announcement and the Tender Offer Memorandum contain important information which should be read carefully before any decision is made with respect to the Offers. If any Qualifying Holder is in any doubt as to the contents of this announcement, the Tender Offer Memorandum or the action it should take, it is recommended to seek its own financial, legal, regulatory and tax advice, including in respect of any tax consequences, immediately from its broker, bank manager, solicitor, accountant or other independent financial, tax or legal adviser. No offer or invitation to acquire any securities is being made pursuant to this announcement.

None of the Offeror, the Sole Dealer Manager or the Tender Agent or any of their respective directors, employees, officers, agents or affiliates expresses any opinion about the merits of the Offer or makes any recommendation as to whether or not any Qualifying Holder should Offer to Sell its Notes and no one has been authorised by the Offeror, the Sole Dealer Manager or the Tender Agent to make any such recommendation.

OFFER RESTRICTIONS

United States

The Offers are not being made, and will not be made, directly or indirectly in or into, or by use of the mails of, or by any means or instrumentality of interstate or foreign commerce of, or of any facilities of a national securities exchange of, the United States. This includes, but is not limited to, facsimile transmission, electronic mail, telex, telephone, the internet and other forms of electronic communication. The Notes may not be tendered in the Offers by any such use, means, instrumentality or facility from or within the United States or by persons located or resident in the United States as defined in Regulation S of the U.S. Securities Act of 1933, as amended (the "Securities Act").

Accordingly, copies of the Tender Offer Memorandum and any other documents or materials relating to the Offers are not being, and must not be, directly or indirectly, mailed or otherwise transmitted, distributed or forwarded (including, without limitation, by custodians, nominees or trustees) in or into the United States. Any purported tender of Notes in the Offers resulting directly or indirectly from a violation of these restrictions will be invalid, and any purported tender of Notes made by a person located in the United States or any agent, fiduciary or other intermediary acting on a non-discretionary basis for a principal giving instructions from within the United States will be invalid and will not be accepted.

The Tender Offer Memorandum is not an offer to buy or sell, or a solicitation of an offer to buy or sell, any Notes or other securities in the United States. Securities may not be offered or sold in the United States absent registration under, or an exemption from the registration requirements of, the Securities Act.

Each Holder of Notes participating in the Offers will represent that it is not located in the United States and it is not participating in the Offers from the United States or it is acting on a non-discretionary basis for a principal located outside the United States that is not giving an order to participate in the Offers from the United States.

For the purposes of this and above paragraphs, "United States" means the United States of America, its territories and possessions, any state of the United States of America and the District of Columbia.

United Kingdom

The communication of the Tender Offer Memorandum and any other documents or materials relating to the Offers is not being made and such documents and/or materials have not been approved by an authorised person for the purposes of section 21 of the Financial Services and Markets Act 2000. Accordingly, such documents and/or materials are not being distributed to, and must not be passed on to, the general public in the United Kingdom. The communication of such documents and/or materials as a financial promotion is only being made to, and may only be acted upon by, those persons in the United Kingdom falling within the definition of investment professionals (as defined in Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the "Financial Promotion Order")) or persons who are within Article 43 of the Financial Promotion Order or any other persons to whom it may otherwise lawfully be made under the Financial Promotion Order.

France

The Tender Offer Memorandum and any documents or offering materials relating to the Offers may not be distributed in the Republic of France except to qualified investors (investisseurs qualifiés) as defined in Article 2(e) of the Prospectus Regulation, as amended, and Article L.411-2 of the French Code monétaire et financier as amended from time to time. The Tender Offer Memorandum has not been and will not be submitted for clearance to nor approved by the Autorité des marchés financiers.

Republic of Italy

None of the Offers, the Tender Offer Memorandum or any other documents or materials relating to the Offers has been or will be submitted to the clearance procedures of the Commissione Nazionale per le Società e la Borsa ("CONSOB") pursuant to Italian laws and regulations. The Offers are being carried out in the Republic of Italy ("Italy") as exempted offers pursuant to article 101-bis, paragraph 3-bis of the Legislative Decree No. 58 of 24 February 1998, as amended (the "Financial Services Act") and article 35-bis, paragraph 4 of CONSOB Regulation No. 11971 of 14 May 1999, as amended. Holders or beneficial owners of the Notes that are located in Italy may tender their Notes in the Offers through authorised persons (such as investment firms, banks or financial intermediaries permitted to conduct such activities in Italy in accordance with the Financial Services Act, CONSOB Regulation No. 20307 of 15 February 2018, as amended from time to time, and Legislative Decree No. 385 of 1 September 1993, as amended) and in compliance with applicable laws and regulations or with requirements imposed by CONSOB or any other Italian authority.

Each intermediary must comply with the applicable laws and regulations concerning information duties vis-à-vis its clients in connection with the Notes and/or the Offers.

Spain

Neither the Offers nor the Tender Offer Memorandum constitute an offer of securities or the solicitation of an offer of securities in Spain which require the approval and the publication of a prospectus under Regulation (EU) 2017/1129, Spanish Law 6/2023, of 17 March, on the Securities Markets and the Investment Services (Ley 6/2023, de 17 de marzo, de los Mercados de Valores y de los Servicios de Inversión), as amended from time to time, and its ancillary and related regulations. Accordingly, the Tender Offer Memorandum has not been and will not be submitted for approval nor approved by the Spanish Securities Market Regulator (Comisión Nacional del Mercado de Valores, the "CNMV").

General

The Tender Offer Memorandum does not constitute an offer to buy or the solicitation of an offer to sell the New Notes, and tenders of Notes for purchase pursuant to the Offer will not be accepted from Holders, in any circumstances in which such offer or solicitation is unlawful.

In addition to the representations referred to above, each holder of Notes participating in the Offers will also be deemed to give certain representations and warranties in respect of the jurisdictions referred to above and generally as set out in "Procedures for submitting Offers to Sell - Representations, warranties and undertakings by the Holders and Direct Participants" of the Tender Offer Memorandum. Any Offer to Sell Notes pursuant to the Offer from a Holder or its Direct Participant that is unable to make these representations and warranties will not be accepted. Each of the Offeror, the Sole Dealer Manager and the Tender Agent reserves the right, in its absolute discretion, to investigate, in relation to any Offer to Sell Notes, whether any such representation and warranty given by a Holder is correct and, if such investigation is undertaken and as a result the Offeror, the Sole Dealer Manager or the Tender Agent determines (for any reason) that such representation and warranty is not correct, such Offer to Sell shall not be accepted.

NEW NOTES

Any investment decision to purchase any New Notes should be made solely on the basis of the information contained in (i) the base prospectus approved by the Central Bank of Ireland on 13 March 2024 in connection with the programme for the issuance of debt instruments of the Offeror, as supplemented by the supplement thereto dated 9 August 2024 (together, the "Base Prospectus") and (ii) each of the final terms in respect of the New Notes (when available). The Base Prospectus is available on the website of the Offeror and on the website of Euronext Dublin (https://live.euronext.com/).

The offering of the New Notes may be restricted by law in certain jurisdictions and therefore persons into whose possession this announcement comes should inform themselves about and observe any such restrictions. Any failure to comply with these restrictions could result in a violation of the laws of any such jurisdiction.

MiFID II product governance / Professional investors and

ECPs only target market - Solely for the purposes of each manufacturer's product approval process, the target market assessment in respect of the New Notes has led to the conclusion that: (i) the target market for the New Notes is eligible counterparties and professional clients only, each as defined in Directive 2014/65/EU, as amended ("MiFID II"); and (ii) all channels for distribution of the New Notes to eligible counterparties and professional clients are appropriate. Any person subsequently offering, selling or recommending the New Notes (a "distributor") should take into consideration the manufacturers' target market assessment; however, a distributor subject to MiFID II is responsible for undertaking its own target market assessment in respect of the New Notes (by either adopting or refining the manufacturers' target market assessment) and determining appropriate distribution channels

EU PRIIPs Regulation / PROHIBITION OF SALES TO EEA RETAIL INVESTORS - The New Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the European Economic Area ("EEA"). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of MiFID II; (ii) a customer within the meaning of Directive (EU) 2016/97, as amended, where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (iii) not a qualified investor as defined in Regulation (EU) 2017/1129 (as amended, the "Prospectus Regulation"). Consequently, no key information document required by Regulation (EU) No 1286/2014 (the "EU PRIIPs Regulation") for offering or selling the New Notes or otherwise making them available to retail investors in the EEA has been prepared and therefore offering or selling the New Notes or otherwise making them available to any retail investor in the EEA may be unlawful under the EU PRIIPs Regulation.

UK MiFIR product governance / Professional investors and ECPs only target market - Solely for the purposes of each manufacturer's product approval process, the target market assessment in respect of the New Notes has led to the conclusion that: (i) the target market for the New Notes is only eligible counterparties, as defined in the FCA Handbook Conduct of Business Sourcebook ("COBS"), and professional clients, as defined in Regulation (EU) No. 600/2014 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 ("UK MiFIR"); and (ii) all channels for distribution of the New Notes to eligible counterparties and professional clients are appropriate. Any person subsequently offering, selling or recommending the New Notes (a "distributor") should take into consideration the manufacturers' target market assessment; however, a distributor subject to the FCA Handbook Product Intervention and Product Governance Sourcebook (the "UK MiFIR Product Governance Rules") is responsible for undertaking its own target market assessment in respect of the New Notes (by either adopting or refining the manufacturers' target market assessment) and determining appropriate distribution channels

UK PRIIPs Regulation / PROHIBITION OF SALES TO UK RETAIL INVESTORS - The New Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the United Kingdom ("UK"). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client, as defined in point (8) of Article 2 of Regulation (EU) No. 2017/565 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 (the "EUWA"); or (ii) a customer within the meaning of the provisions of the Financial Services and Markets Act 2000 and any rules or regulations made under the FSMA to implement Directive (EU) 2016/97, where that customer would not qualify as a professional client, as defined in point (8) of Article 2(1) of Regulation (EU) No. 600/2014 as it forms part of UK domestic law by virtue of the EUWA; or (iii) not a qualified investor as defined in Article 2 of the Prospectus Regulation as it forms part of UK domestic law by virtue of the EUWA. Consequently, no key information document required by Regulation (EU) No. 1286/2014 as it forms part of UK domestic law by virtue of the EUWA (the "UK PRIIPs Regulation") for offering or selling the New Notes or otherwise making them available to retail investors in the UK has been prepared and therefore offering or selling the New Notes or otherwise making them available to any retail investor in the UK may be unlawful under the UK PRIIPs Regulation.

The New Notes are being offered outside the United States to non-U.S. persons, pursuant to the provisions of Regulation S. The New Notes will not be registered under the Securities Act or the securities laws of any state or other jurisdiction of the United States and may not be offered or sold in the United States or delivered, directly or indirectly, within the United States or to, or for the account or benefit of, U.S. persons absent registration or an applicable exemption from the registration requirements of the Securities Act. Any investment decision to purchase any New Notes should be made solely on the basis of the information contained in (i) the Base Prospectus and (ii) each of the final terms in respect of the New Notes (when available).

The New Notes are not being, and will not be, offered or sold in the United States. Nothing in this announcement constitutes an offer to sell or the solicitation of an offer to buy the New Notes in the United States or any other jurisdiction. The New Notes may not be offered, sold or delivered in the United States absent registration under, or an exemption from the registration requirements of, the Securities Act. The New Notes have not been, and will not be, registered under the Securities Act or the securities laws of any state or other jurisdiction of the United States and may not be offered, sold or delivered, directly or indirectly, within the United States or to, or for the account or benefit of, U.S. persons (as defined in Regulation S under the Securities Act).

This announcement is not being distributed to, and must not be passed on to, the general public in the UK and is not intended to be an invitation or inducement to engage in investment activity for the purpose of Section 21 of the FSMA. This announcement is directed only at: (i) persons who are outside the UK; (ii) persons who are investment professionals within the meaning of Article 19(5) of the Financial Promotion Order; (iii) high net worth entities falling within Article 49(2)(a) to (d) of the Financial Promotion Order or (iv) any other persons to whom this announcement for the purposes of Section 21 of the FSMA can otherwise lawfully be distributed (all such persons together being referred to as "relevant persons"), and must not be acted on or relied upon by persons other than relevant persons. Any investment or investment activity to which this announcement relates is available only to and will be engaged in only with relevant persons.

Neither the New Notes nor the Base Prospectus have been registered with the CNMV. On such basis, the New Notes may not be offered, sold or distributed, nor may any subsequent resale of New Notes be carried out in Spain, except in circumstances which do not require the registration of a prospectus in Spain in compliance with all legal and regulatory requirements under Spanish securities laws. No publicity or marketing of any kind shall be made in Spain in relation to the New Notes.

This announcement is not an offer of securities or investments for sale nor a solicitation of an offer to buy securities or investments in any jurisdiction where such offer or solicitation would be unlawful. No action has been taken that would permit an offering of the New Notes or possession or distribution of this announcement in any jurisdiction where action for that purpose is required. Persons into whose possession this announcement comes are required to inform themselves about and to observe any such restrictions.