Holding(s) in Company

3i Infrastructure Ltd
16 March 2007

TR-1:               NOTIFICATION OF MAJOR INTERESTS IN SHARES



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



3i Infrastructure Limited



2. Reason for the notification:



- An acquisition or disposal of voting rights

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



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



BT Pension Scheme Trustees Limited as trustee of the BT Pension Scheme



4. Full name of shareholder(s) (if different from 3):



N/A



5. Date of the transaction (and date on which the threshold is crossed or
reached if different):



12 March 2007



6. Date on which issuer notified:



15 March 2007



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



14%



8. Notified details:


A: Voting rights attached to shares
Class/type   Situation previous to the         Resulting situation after the triggering transaction
of shares    triggering transaction
 if possible Number of Shares Number of Voting Number of     Number of voting rights       % of voting rights
using the                     Rights           shares
ISIN CODE
                                               Direct        Direct         Indirect       Direct        Indirect
B1RJLF8      0                0                100,000,000   100,000,000    N/A            14.286%       N/A

JE00BIRJLF86




B: Financial Instruments
Resulting situation after the triggering transaction
Type of financial   Expiration date   Exercise/          Number of voting      % of voting rights
instrument                            Conversion  Period rights that may be
                                      / Date             acquired if the
                                                         instrument is
                                                         exercised/ converted.
B1RJQ97             13/03/2012        13/9/2007 to 13/03 10,000,000
                                            /2012


JE00B1RJQ972

Warrants to
subscribe for ord
shs


Total (A+B)
Number of voting rights      % of voting rights
        110,000,000                    14.286%





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



N/A



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:



All voting rights held on behalf of the above entity are disclosed pursuant to
DTR 5.1.2



This disclosure is made by Hermes Investment Management Limited as agent on
behalf of BT Pension Scheme Trustees Limited as trustee of the BT Pension Scheme



14. Contact name:     Ceris Stafford



15. Contact telephone number:         020 7975 3414




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