Rule 2.9 Announcement

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION

21 May 2018

UBM plc (the "Company")

Rule 2.9 Announcement

In accordance with Rule 2.9 of the City Code on Takeovers and Mergers, the Company confirms that, as at the close of business on 18 May 2018, it had 394,102,643 ordinary shares of 11 1/4 pence each in issue and admitted to trading on the main market for listed securities of the London Stock Exchange plc. The International Securities Identification Number for the ordinary shares is JE00BD9WR069.

UBM has an American Depositary Receipts ("ADR") programme sponsored and administered by BNY Mellon. 1 ADR represents 1 ordinary share of UBM. The ADRs are traded on the over-the-counter Pink Marketplace. The trading symbol for the ADRs is UBMPY and the ISIN is US90265U2033.

The Company holds no shares in treasury.

--ENDS--

Enquiries to:

Nigel Youds, Deputy Company Secretary

Tel: +44 (0)20 7921 5000

LEI: 213800KLMH5SP3247C87