Holding(s) in Company

Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Informa Plc

An acquisition or disposal of voting rights

Yes

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached.

No

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

No

An event changing the breakdown of voting rights

No

Other (please specify):

No

3. Full name of person(s) subject to the

notification obligation:

Lazard Asset Management LLC

4. Full name of shareholder(s)

(if different from 3.):

ABN AMRO Mellon Global Sec Svcs B.V.

Bank of New York, Inc - Directed

Bank of New York, Inc - Global Custody

Chase Investor Services

CIBC-Mellon Canadian Office

Citibank, N.A. London

Comerica Bank

J.P.Morgan Chase - Dir Pen Acct

JP Morgan Chase Trust

Lazard Freres & Co.

Mellon Trust

Morgan Guaranty - Personal Custody

Morgan Stanley (Wrap Only)

Northern Trust Co

State Street Bank & Trust Company

State Street Bank - Custodian - ETC

State Street Bank - London

State Street Bank - Master Tr - ETC

State Street Bank- Custody Master Trust

5. Date of the transaction and date on

which the threshold is crossed or

reached:

23 August 2012

6. Date on which issuer notified:

24 August 2012

7. Threshold(s) that is/are crossed or

reached:

From 5% to below 5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares

if possible using the ISIN CODE

JE00B3WJHK45

Situation previous to the triggering transaction

Number of Shares

Number of Voting Rights

44,515,798

30,298,545

Resulting situation after the triggering transaction

Number of voting rights

% of voting rights

Number of shares

Direct

Indirect

Direct

Indirect

Below 5%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration Date

Exercise/ Conversion Period

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights


C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date

Exercise/Conversion period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

Below 5%

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

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 cease to hold:

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

13. Additional information:

14. Contact name:

Legal & Compliance Department

15. Contact telephone number:

0207 448 2666

Annex: Notification of major interests in shares

A: Identity of the persons or legal entity subject to the notification obligation

Full name

(including legal form of legal entities)

INFORMA PLC

Contact address

(registered office for legal entities)

22 Grenville Street, St Helier, Jersey JE4 8PX

Phone number & email

020 7017 4314

julie.woollard@informa.com

Other useful information

(at least legal representative for legal persons)

Julie Woollard

Deputy Company Secretary

B: Identity of the notifier, if applicable

Full name

Contact address

Phone number & email

Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

C: Additional information



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