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     Informa Plc
shares to which voting rights are attached:

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
                                         Prudential plc group of companies
notification obligation:
4. Full name of shareholder(s)
                                         See attached schedule
(if different from 3.):
5. Date of the transaction and date on

which the threshold is crossed or        9 January 2013

reached:
6. Date on which issuer notified:        10 January 2013
7. Threshold(s) that is/are crossed or
                                         5%
reached:

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         % of voting rights
instrument is exercised/ converted.

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    N/A
cease to hold:
12. Date on which proxy holder will cease to     N/A
hold voting rights:
13. Additional information:
                                                 James Todd / Mark Thomas
14. Contact name:
                                                 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
                                    INFORMA PLC
(including legal form of legal
entities)
Contact address
                                    22 Grenville Street, St Helier, Jersey JE4
(registered office for legal        8PX
entities)
                                    020 7017 4314
Phone number & email
                                    Julie.Woollard@informa.com
Other useful information            Julie Woollard

(at least legal representative for  Deputy Company Secretary
legal persons)

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

### END ###

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Tensid Ltd., Switzerland  newsbox.ch      Provider/Channel related enquiries
www.tensid.ch             www.newsbox.ch  marco@tensid.ch
                                          +41 41 763 00 50
 
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