Holding(s) in Company

Informa PLC
06 September 2005
                                                                                


                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     INFORMA PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     HBOS PLC AND ITS SUBSIDIARIES

3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or in respect of a 
     non-beneficial interest or in the case of an individual holder if it is a
     holding of that person's spouse or children under the age of 18

     IN RESPECT OF 2 ABOVE

4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

     SEE BELOW

5)   Number of shares/amount of stock acquired.

     NOT KNOWN

6)   Percentage of issued Class
     NOT KNOWN

7)   Number of shares/amount of stock disposed
     NOT KNOWN 

8)   Percentage of issued Class
     NOT KNOWN

9)   Class of security

     ORDINARY SHARES OF 10 PENCE EACH

10)  Date of transaction

     NOT KNOWN

11)  Date company informed

     5 SEPTEMBER 2005

12)  Total holding following this notification

      16,851,197
               
13)  Total percentage holding of issued class following this notification
      (any treasury shares held by the listed company should not be taken
     taken into account when calculating percentage)

      4.00%

14)  Any additional information

     ISSUED SHARE CAPITAL - 421,108,929

15)  Name of contact and telephone number for queries

     SONIA RICHMOND - 020 7017 4314

16)  Name and signature of authorised company official responsible for 
     making this notification     

    JEFF THOMASSON, COMPANY SECRETARY

     Date of Notification ..6 SEPTEMBER 2005........


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Letter to Informa plc

Companies Act 1985 (as amended) (the 'Act')

Section 198 disclosure by HBOS plc on its own behalf and on behalf of those of
its subsidiaries which hold a material interest in the Ordinary l0p shares
comprising part of the relevant share capital of Informs plc ('the Company')


Pursuant to Section 198 of the Act, we hereby give the Company notice that we
had an interest (for the purposes of Sections 208 and 209 of the Act) in the
following shares comprising part of the relevant share capital (as defined in
the section 198 of the Act) of the Company following the recent placing of
ordinary shares.


                                                        Number of     Percentage
Registered Holder:                           Fund:     Share Held:     Holding:
HSDL Nominees Limited                         N/A            19         0.000%
Nortrust Nominees Limited a/c HXCM           HPFO        29,766         0.007%
Nortrust Nominees Ltd.                      HXPEN        32,082         0.008%
Nortrust Nominees Ltd.                       HPBA        33,290         0.008%
Nortrust Nominees Limited a/c HXCM           HLFO       386,199         0.092%
Nortrust Nominees Ltd.                       HLBA       387,877         0.092%
Nortrust Nominees Ltd.                      HXLFE       410,608         0.098%
Chase Nominees a/c CMIG                      1105       879,309         0.209%
Chase Nominees a/c CMIG                      2304     1,554,778         0.369%
Chase Nominees a/c CMIG                      2314     5,064,876         1.203%
Chase Nominees Ltd                            WP      8,073,393         1.917%

Aggregate material Holding of HBOS Group             16,851,197         4.002%

Kenny Melville
Assistant Company Secretary
For and on behalf of 
HBOS plc






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