Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

Informa PLC

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 result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to thenotification obligation: iii

Lazard Asset Management LLC

4. Full name of shareholder(s) (if different from 3.):iv

Bank of New York, Inc - Global Custody

Bank of NY - Dir Personal

BMO Harris Bank

CIBC-Mellon Canadian Office

Comerica Bank

J.P.Morgan Chase - Dir Pen Acct

JP Morgan Chase Trust

Mellon Trust

Morgan Guaranty - Personal Custody

Nomura

Northern Trust Co

PNC Bank, N.A.- Phil./Trust Securities

State Street - Kansas City

State Street Bank & Trust Company

State Street Bank - Custodian

State Street Master - Custodian - ETC

State Street Master - Master Tr - ETC

State Street Master - Custody Master Trust

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

December 2015

6. Date on which issuer notified:

January 2015

7. Threshold(s) that is/are crossed orreached: vi, vii

Decrease from 8% to 7%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

JE00B3WJHK45

53,077,083

47,321,088

7.292%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

47,321,088

7.292%

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi

Lazard Asset Management LLC controls all the voting rights held of this issuer.

Proxy Voting:

10. Name of the proxy holder:

N/A

11. Number of voting rights proxy holder will ceaseto hold:

12. Date on which proxy holder will cease to holdvoting rights:

13. Additional information:

14. Contact name:

Legal & Compliance Department

15. Contact telephone number:

0207 448 2119