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.
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:	Prudential plc group of companies
4. Full name of shareholder(s) (if different from 3.):	See attached schedule
5. Date of the transaction and date on which the threshold is crossed or reached:	9 January 2013
6. Date on which issuer notified:	10 January 2013
7. Threshold(s) that is/are crossed or reached:	5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares if possible using the ISIN CODE

Ordinary GBP 0.001 JE00B3WJHK45

Situation previous to the triggering transaction

Number of Shares	Number of Voting Rights
29,666,391	29,666,391

Resulting situation after the triggering transaction

Number of voting rights

% of voting rights

Number of shares	Direct	Indirect	Direct	Indirect
30,196,067	30,196,067	0	5.01%	0

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
30,196,067	5.01%

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

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) The Prudential Assurance Company Limited (wholly owned subsidiary of Prudential plc)

Proxy Voting:

10. Name of the proxy holder:	N/A
11. Number of voting rights proxy holder will cease to hold:	N/A
12. Date on which proxy holder will cease to hold voting rights:	N/A
13. Additional information:
14. Contact name:	James Todd / Mark Thomas M&G Investment Management Limited
15. Contact telephone number:	0207 548 3261 / 0207 548 3266

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

Appendix

Notifiable Position Report for INFORMA PLC as at 9 January 2013

Percentage holdings are calculated using 602,707,165 Total Voting Rights

	Registered Holder	Holding	Voting Rights	%
Prudential plc			30,196,067	5.01	Total Notifiable Interest
Direct	PRUCLT HSBC GIS NOM (UK) PAC AC	19,321,190	19,321,190
	PRUCLT HSBC GIS NOM (UK) PPL AC	914,728	914,728
	STATE STREET NOMS LTD A/C GMGS	1,088,993	1,088,993
	STATE STREET NOMS LTD A/C GMIB	1,436,613	1,436,613
	STATE STREET NOMS LTD A/C GMID	413,561	413,561
	STATE STREET NOMS LTD A/C GMIF	156,916	156,916
	STATE STREET NOMS LTD A/C GMIG	484,748	484,748
	STATE STREET NOMS LTD A/C GMIM	240,022	240,022
	STATE STREET NOMS LTD A/C GMIN	2,032,500	2,032,500
	STATE STREET NOMS LTD A/C GMXG	4,106,796	4,106,796
	Subtotal:	30,196,067	30,196,067
M&G Group Limited			30,196,067	5.01
Direct	PRUCLT HSBC GIS NOM (UK) PAC AC	19,321,190	19,321,190
	PRUCLT HSBC GIS NOM (UK) PPL AC	914,728	914,728
	STATE STREET NOMS LTD A/C GMGS	1,088,993	1,088,993
	STATE STREET NOMS LTD A/C GMIB	1,436,613	1,436,613
	STATE STREET NOMS LTD A/C GMID	413,561	413,561
	STATE STREET NOMS LTD A/C GMIF	156,916	156,916
	STATE STREET NOMS LTD A/C GMIG	484,748	484,748
	STATE STREET NOMS LTD A/C GMIM	240,022	240,022
	STATE STREET NOMS LTD A/C GMIN	2,032,500	2,032,500
	STATE STREET NOMS LTD A/C GMXG	4,106,796	4,106,796
M&G Investment Management Limited			30,196,067	5.01
Direct	PRUCLT HSBC GIS NOM (UK) PAC AC	19,321,190	19,321,190
	PRUCLT HSBC GIS NOM (UK) PPL AC	914,728	914,728
	STATE STREET NOMS LTD A/C GMGS	1,088,993	1,088,993
	STATE STREET NOMS LTD A/C GMIB	1,436,613	1,436,613
	STATE STREET NOMS LTD A/C GMID	413,561	413,561
	STATE STREET NOMS LTD A/C GMIF	156,916	156,916
	STATE STREET NOMS LTD A/C GMIG	484,748	484,748
	STATE STREET NOMS LTD A/C GMIM	240,022	240,022
	STATE STREET NOMS LTD A/C GMIN	2,032,500	2,032,500
	STATE STREET NOMS LTD A/C GMXG	4,106,796	4,106,796
M&G Limited			30,196,067	5.01
Direct	PRUCLT HSBC GIS NOM (UK) PAC AC	19,321,190	19,321,190
	PRUCLT HSBC GIS NOM (UK) PPL AC	914,728	914,728
	STATE STREET NOMS LTD A/C GMGS	1,088,993	1,088,993
	STATE STREET NOMS LTD A/C GMIB	1,436,613	1,436,613
	STATE STREET NOMS LTD A/C GMID	413,561	413,561
	STATE STREET NOMS LTD A/C GMIF	156,916	156,916
	STATE STREET NOMS LTD A/C GMIG	484,748	484,748
	STATE STREET NOMS LTD A/C GMIM	240,022	240,022
	STATE STREET NOMS LTD A/C GMIN	2,032,500	2,032,500
	STATE STREET NOMS LTD A/C GMXG	4,106,796	4,106,796
The Prudential Assurance Company Limited			20,235,918	3.35
Direct	PRUCLT HSBC GIS NOM (UK) PAC AC	19,321,190	19,321,190
	PRUCLT HSBC GIS NOM (UK) PPL AC	914,728	914,728

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