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 areof existing shares to which voting rights are attached:attached:	Informa Plc
2. Reason for the notification (please tick the appropriate box or boxes):
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.
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 the notification obligation:notification obligation:	Legal & General Group Plc (Group) Legal & General Investment Management Limited (LGIM)
4. Full name of shareholder(s) (if different from 3.):(if different from 3.):	Legal & General Group plc (L&G)
5. Date of the transaction and date on which the threshold is crossed orwhich the threshold is crossed or reached:reached:	22 March 2011
6. Date on which issuer notified:	23 March 2011
7. Threshold(s) that is/are crossed or reached:reached:	Group (below 5%) LGIM (below 5%)

8. Notified details:

A: Voting rights attached to shares

Class/type of sharesshares	Situation previous to the triggeringto the triggering transactiontransaction
if possible using the ISIN CODE	Number ofof SharesShares	Number ofof VotingVoting RightsRights
Ordinary GBP 0.001	33,341,466 (As on 19/11/2010)

Resulting situation after the triggering transaction
Number of sharesof shares	Number of voting rightsrights		% of voting rights
Direct	Indirect	Direct	Indirect
Below 5%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrumentinstrument	Expiration datedate	Exercise/ Conversion PeriodConversion Period

Number of voting rights that may berights that may be acquired if theacquired if the instrument isinstrument is exercised/ converted.exercised/ converted.	% of voting rightsrights

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

Resulting situation after the triggering transaction

Type of financial instrumentinstrument	Exercise price	Expiration date	Exercise/ Conversion periodConversion 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:financial instruments are effectively held, if applicable:

Legal & General Group Plc (Direct and Indirect) (Group) ( below 5%)
Legal & General Investment Management (Holdings) Limited (LGIMH) (Direct and Indirect) ( below 5%)
Legal & General Investment Management Limited (Indirect) (LGIM) (Below 5%)

Legal & General Group Plc (Direct) (L&G) ( 27,512,547 - 4.57%=LGAS, LGPL & PMC)

Legal & General Investment Management (Holdings) Limited (Direct) (LGIMHD) (PMC)	Legal & General Insurance Holdings Limited (Direct) (LGIH) (LGAS &
Legal & General Assurance (Pensions Management) Limited (PMC) (PMC)	Legal & General Assurance Society Limited (LGAS & LGPL) (LGAS )
	Legal & General Pensions Limited (Direct) (LGPL)

Proxy Voting:
10. Name of the proxy holder:		N/A
11. Number of voting rights proxy holder will cease to hold:to hold:		N/A
12. Date on which proxy holder will cease to hold voting rights:voting rights:		N/A
13. Additional information:13. Additional information:	Notification using the total voting rights figure of 600,025,180
14. Contact name:	Paul Toon (LGIM)
15. Contact telephone number:	020 3124 3854

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 [e-mail]
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

### END ###### END ###

Provider		Channel		Contact
Tensid Ltd., Switzerland www.tensid.ch		newsbox.ch www.newsbox.ch		Provider/Channel related enquiries [e-mail] [phone]+41 41 763 00 50