UCB launches institutional Eurobond offering

Brussels (Belgium), 27 September, 2013 (CET) 11h00 - regulated information

UCB SA (NYSE Euronext UCB) has just announced an offering of around EUR 300 million senior unsecured bonds, due January 2021 (the “Bonds”), to be issued under its EUR 3 billion EMTN Programme.

The Bonds will be sold to qualified institutional investors across Europe. The transaction is conducted by Barclays, CA-CIB and The Royal Bank of Scotland plc, acting as Global Coordinators and Active Joint Bookrunners and Santander and Mitsubishi UFJ Securities, acting as Active Joint Bookrunners for the offering. The issue and delivery of the Bond is expected to take place on October 4th, 2013.

This offering follows a series of pan-European bond investor meetings held from Monday 23rd, September until Thursday 26th, September.

The Bonds will mature on January 4th, 2021.

UCB expects to announce the final terms of the offering of the Bonds at pricing, scheduled to take place today.

This press release does not constitute an offer to sell or a solicitation to buy any securities, and the offer of the Bonds by UCB does not constitute a public offering.

For further information

Antje Witte, Investor Relations, UCB
T +32 2 559 9414, antje.witte@ucb.com

Alexandra Deschner, Investor Relations UCB
T: +32 2 559 9683, alexandra.deschner@ucb.com

About UCB

UCB, Brussels, Belgium (www.ucb.com) is a global biopharmaceutical company focused on the discovery and development of innovative medicines and solutions to transform the lives of people living with severe diseases of the immune system or of the central nervous system. With 9000 people in approximately 40 countries, the company generated revenue of EUR 3.4 billion in 2012. UCB is listed on Euronext Brussels (symbol: UCB).

Forward-looking statements

This press release contains forward-looking statements based on current plans, estimates and beliefs of management. All statements, other than statements of historical fact, are statements that could be deemed forward-looking statements, including estimates of revenues, operating margins, capital expenditures, cash, other financial information, expected legal, political, regulatory or clinical results and other such estimates and results. By their nature, such forward-looking statements are not guarantees of future performance and are subject to risks, uncertainties and assumptions which could cause actual

results to differ materially from those that may be implied by such forward-looking statements contained in this press release. Important factors that could result in such differences include: changes in general economic, business and competitive conditions, the inability to obtain necessary regulatory approvals or to obtain them on acceptable terms, costs associated with research and development, changes in the prospects for products in the pipeline or under development by UCB, effects of future judicial decisions or governmental investigations, product liability claims, challenges to patent protection for products or product candidates, changes in laws or regulations, exchange rate fluctuations, changes or uncertainties in tax laws or the administration of such laws and hiring and retention of its employees. UCB is providing this information as of the date of this press release and expressly disclaims any duty to update any information contained in this press release, either to confirm the actual results or to report a change in its expectations.

There is no guarantee that new product candidates in the pipeline will progress to product approval or that new indications for existing products will be developed and approved. Products or potential products which are the subject of partnerships, joint ventures or licensing collaborations may be subject to differences between the partners. Also, UCB or others could discover safety, side effects or manufacturing problems with its products after they are marketed.

Moreover, sales may be impacted by international and domestic trends toward managed care and health care cost containment and the reimbursement policies imposed by third-party payers as well as legislation affecting biopharmaceutical pricing and reimbursement.

Disclaimer

THIS ANNOUNCEMENT IS NOT FOR DISTRIBUTION, DIRECTLY OR INDIRECTLY IN OR INTO THE UNITED STATES, CANADA, AUSTRALIA OR JAPAN OR IN ANY OTHER JURISDICTION IN WHICH SUCH DISTRIBUTION WOULD BE PROHIBITED BY APPLICABLE LAW.

THIS ANNOUNCEMENT IS FOR GENERAL INFORMATION ONLY AND DOES NOT FORM PART OF ANY OFFER TO SELL OR EXCHANGE, OR THE SOLICITATION OF ANY OFFER TO BUY OR EXCHANGE, SECURITIES. THE DISTRIBUTION OF THIS ANNOUNCEMENT AND THE OFFER AND SALE OR EXCHANGE OF THE SECURITIES DESCRIBED IN THIS ANNOUNCEMENT MAY BE RESTRICTED BY LAW IN CERTAIN JURISDICTIONS. EACH PERSON READING THIS ANNOUNCEMENT SHOULD INFORM HIMSELF OF AND OBSERVE ANY SUCH RESTRICTIONS.

THIS COMMUNICATION IS FOR DISTRIBUTION IN THE UNITED KINGDOM ONLY TO (I) INVESTMENT PROFESSIONALS FALLING WITHIN ARTICLE 19(5) OF THE FINANCIAL SERVICES AND MARKETS ACT 2000 (FINANCIAL PROMOTION) ORDER 2005 (THE "ORDER") OR (II) HIGH NET WORTH ENTITIES AND OTHER PERSONS TO WHOM IT MAY LAWFULLY BE COMMUNICATED, FALLING WITHIN ARTICLE 49(2)(A) TO (D) OF THE ORDER (ALL SUCH PERSONS TOGETHER BEING REFERRED TO AS "RELEVANT PERSONS").

THIS ANNOUNCEMENT IS NOT AN OFFER OF SECURITIES IN THE UNITED STATES OR ANY OTHER JURISDICTION. THE BONDS MAY NOT BE OFFERED NOR SOLD OR EXCHANGED IN THE UNITED STATES ABSENT REGISTRATION OR AN EXEMPTION FROM REGISTRATION UNDER THE US SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"). UCB DOES NOT INTEND TO REGISTER ANY PORTION OF THE PLANNED OFFER IN THE UNITED STATES OR TO CONDUCT AN OFFERING OF SECURITIES IN THE UNITED STATES. THE OFFERING IS BEING CONDUCTED OUTSIDE THE UNITED STATES IN ACCORDANCE WITH REGULATION S UNDER THE SECURITIES ACT.

RELEASE, PUBLICATION OR DISTRIBUTION OF THIS PRESS RELEASE IS FORBIDDEN IN ANY COUNTRY WHERE IT WOULD VIOLATE APPLICABLE LAWS OR REGULATIONS.