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:

Avanti Communications Group 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:

Government of Singapore Investment Corporation Pte Ltd

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

 Chase Nominees Ltd

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

17 October 2012

6. Date on which issuer notified:

19 October 2012

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

Above 7%

8. Notified details:

A: Voting rights attached to shares

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights

Direct

Indirect

Direct

Indirect

 Ordinary shares

ISIN:

GB00B1VCNQ84

7,727,371

 7,727,371

8,010,234

8,010,234

  0

 7.1688%

0

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate

Exercise/ConversionPeriod

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

N/A

N/A

N/A

N/A

N/A

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

Resulting situation after the triggering transaction

Type of financialinstrument

Exerciseprice

Expirationdate

Exercise/Conversionperiod

Number of votingrights instrumentrefers to

% of voting rights

 N/A

 N/A

 N/A

 N/A

N/A

Nominal

Delta

 N/A

 N/A

Total (A+B+C)

Number of voting rights

Percentage of voting rights

8,010,234

7.1688%

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

 N/A

Proxy Voting:

N/A

10. Name of the proxy holder:

N/A

 N/A

11. Number of voting rights proxy holder will cease to hold:

N/A

 N/A

12. Date on which proxy holder will cease to hold voting rights:

 N/A

13. Additional information:

Contact address of person subject to notification obligation:

168 Robinson Road,Capital Tower #37-01,Singapore 068912

14. Contact name:

 Lim Eng Kok / Gary Wang

15. Contact telephone number:

 (65) 6889 8932 / (65) 6889 8298

Signature of Individual authorized to sign

for Substantial Shareholder

Signature of Individual authorized to sign

for Substantial Shareholder

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)

GOVERNMENT OF SINGAPORE INVESTMENT CORPORATION PRIVATE LIMITED

Contact address

(registered office for legal entities)

168 Robinson Road

Capital Tower #37-01

Singapore 068912

Phone number & email

(65) 6889 8932 / (65) 6889 8298

Other useful information

(at least legal representative for legal persons)

N/A

B: Identity of the notifier, if applicable

Full name

N/A

Contact address

N/A

Phone number & email

N/A

Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

N/A

C: Additional information

Signature of Individual authorized to sign

for Substantial Shareholder

Signature of Individual authorized to sign

for Substantial Shareholder