Holding(s) in Company

For filings with the FSA include the annex For filings with issuer exclude the annex TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi 1. Identity of the issuer or the underlying issuerof existing shares to which voting rights are UBM Plcattached:ii 2 Reason for the notification (please tick the appropriate box or boxes): An acquisition or disposal of voting rights X An acquisition or disposal of qualifying financial instruments which may resultin the acquisition of shares already issued to which voting rights are attached An acquisition or disposal of instruments with similar economic effect toqualifying financial instruments An event changing the breakdown of voting rights Other (please specify): 3. Full name of person(s) subject to the Prudential plc group of companiesnotification obligation:iii PRUCLT HSBC GIS NOM(UK) PAC AC4. Full name of shareholder(s) (if different from 3.):iv PRUCLT HSBC GIS NOM(UK) PPL AC STATE STREET NOMS LTD 5. Date of the transaction and date onwhich the threshold is crossed or 03 June 2013reached: v 6. Date on which issuer notified: 04 June 2013 7. Threshold(s) that is/are crossed or 5%reached: vi, vii 8. Notified details: A: Voting rights attached to shares viii, ix Class/type Situation previous Resulting situation after the triggering transactionof to the triggeringshares transaction Number Number Number Number of voting % of voting rights xif possible of of of shares rightsusing Shares Votingthe ISIN Rights Direct Direct xi Indirect Direct IndirectCODE xii JE00B2R84W06 11,875,609 11,875,609 12,405,609 12,405,609 0 5.05% 0 B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of Expiration Exercise/ Number of voting % of votingfinancial date xiii Conversion Period xiv rights that may be rightsinstrument acquired if the instrument is exercised/ converted. C: Financial Instruments with similar economic effect to Qualifying FinancialInstruments xv, xvi Resulting situation after the triggering transaction Type of Exercise price Expiration Exercise/ Number of voting rights % of voting rightsfinancial date xvii Conversion instrument refers to xix, xxinstrument period xviii Nominal Delta Total (A+B+C) Number of voting rights Percentage of voting rights 12,405,609 5.05% 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi Prudential plc (parent Company) M&G Group Limited (wholly owned subsidiary of Prudential plc) M&G Limited (wholly owned subsidiary of M&G Group Limited) M&G Investment Management Limited (wholly owned subsidiary of M&G Limited) Proxy Voting: 10. Name of the proxy holder: N/A 11. Number of voting rights proxy holder will cease N/Ato hold: 12. Date on which proxy holder will cease to hold N/Avoting rights: 13. Additional information: James Todd / Mark Thomas14. Contact name: M&G Investment Management Limited 15. Contact telephone number: 020 7548 2293/ 020 7548 3266