Hochschild Regulatory News (HOC)

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

Hochschild Mining Plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

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):

Change of custodian

X

3. Full name of person(s) subject to thenotification obligation: iii

Prudential plc group of companies

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

See attached schedule

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

03 October 2011

6. Date on which issuer notified:

04 October 2011

7. Threshold(s) that is/are crossed orreached: vi, vii

See item 13

8. Notified details:

A: Voting rights attached to shares viii, ix

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 x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB00B1FW5029

22,277,961

22,277,961

22,277,961

21,668,987

608,974

6.41%

0.18%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

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

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

5.75% Convertible Bond - XS0457794674

N/A

20/10/14

N/A

931,666

Nominal

Delta

0.27%

Total (A+B+C)

Number of voting rights

Percentage of voting rights

23,209,627

6.86%

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

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)

M&G Securities (wholly owned subsidiary of M&G Limited)

Proxy Voting:

10. Name of the proxy holder:

N/A

11. Number of voting rights proxy holder will ceaseto hold:

N/A

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

N/A

13. Additional information:

Following a change of custodian for a large number of funds managed by M&G, the registration details have changed and are now as detailed on the attached report. No other material changes have taken place

14. Contact name:

Raj Bhasin, Company Secretary, Hochschild Mining plc

15. Contact telephone number:

020 7907 2930

Notifiable Position Report for HOCHSCHILD MINING as at 03 October 2011

Percentage holdings are calculated using 338,085,226 Total Voting Rights

Registered Holder

Holding

Voting Rights

% Voting Rights

Prudential plc

23,209,627

6.86

Total Notifiable Interest

ORD GBP0.25 B1FW502

22,277,961

22,277,961

6.58

Holding Type: Direct

BK OF NEW YORK(NOMS)LTD/636924

74,122

74,122

HSBC SEOUL GL BASICS MOTHER FD

3,461

3,461

KELP

26,642

26,642

PRUCLT HSBC GIS NOM(UK) PAC AC

530,000

530,000

PRUCLT HSBC GIS NOM(UK) PPL AC

115,464

115,464

STATE STREET NOMS LTD A/C GMBM

20,410,207

20,410,207

STATE STREET NOMS LTD A/C GMBN

471,500

471,500

STATE STREET NOMS LTD A/C GMIF

37,591

37,591

Sub Total :

21,668,987

21,668,987

Holding Type : Indirect

JNL/M&G GLOBAL BASICS FUND

608,974

608,974

Sub Total :

608,974

608,974

5.75% CNV BDS 20/10/14 USD B4QBBF6

11,400,000

931,666

0.27

Holding Type: Direct

PRUCLT HSBC GIS NOM(UK) PAC AC

4,700,000

384,108

STATE STREET NOMS LTD A/C MGRU

6,700,000

547,558

Sub Total:

11,400,000

931,666

M&G Group Limited

23,135,505

6.84

ORD GBP0.25 B1FW502

22,203,839

22,203,839

6.56

HSBC SEOUL GL BASICS MOTHER FD

3,461

3,461

KEPP

26,642

26,642

PRUCLT HSBC GIS NOM(UK) PAC AC

530,000

530,000

PRUCLT HSBC GIS NOM(UK) PPL AC

115,464

115,464

STATE STREET NOMS LTD A/C GMBM

20,410,207

20,410,207

STATE STREET NOMS LTD A/C GMBN

471,500

471,500

STATE STREET NOMS LTD A/C GMIF

37,591

37,591

JNL/M&G GLOBAL BASICS FUND

608,974

608,974

5.75% CNV BDS 20/10/14 USD B4QBBF6

11,400,000

931,666

0.27

PRUCLT HSBC GIS NOM(UK) PAC AC

4,700,000

384,108

STATE STREET NOMS LTD A/C MGRU

6,700,000

547,558

M&G Investment Management Limited

23,097,914

6.83

ORD GBP0.25 B1FW502

22,166,248

22,166,248

6.55

HSBC SEOUL GL BASICS MOTHER FD

3,461

3,461

KELP

26,642

26,642

PRUCLT HSBC GIS NOM(UK) PAC AC

530,000

530,000

PRUCLT HSBC GIS NOM(UK) PPL AC

115,464

115,464

STATE STREET NOMS LTD A/C GMBM

20,410,207

20,410,207

STATE STREET NOMS LTD A/C GMBN

471,500

471,500

JNL/M&G GLOBAL BASICS FUND

608,974

608,974

5.75% CNV BDS 20/10/14 USD B4QBBF6

11,400,000

931,666

0.27

PRUCLT HSBC GIS NOM(UK) PAC AC

4,700,000

384,108

STATE STREET NOMS LTD A/C MGRU

6,700,000

547,558

M&G Limited

23,135,505

6.84

ORD GBP0.25 B1FW502

22,203,839

22,203,839

6.56

HSBC SEOUL GL BASICS MOTHER FD

3,461

3,461

KELP

26,642

26,642

PRUCLT HSBC GIS NOM(UK) PAC AC

530,000

530,000

PRUCLT HSBC GIS NOM(UK) PPL AC

115,464

115,464

STATE STREET NOMS LTD A/C GMBM

20,410,207

20,410,207

STATE STREET NOMS LTD A/C GMBN

471,500

471,500

STATE STREET NOMS LTD A/C GMIF

37,591

37,591

JNL/M&G GLOBAL BASICS FUND

608,974

608,974

5.75% CNV BDS 20/10/14 USD B4QBBF6

11,400,000

931,666

0.27

PRUCLT HSBC GIS NOM(UK) PAC AC

4,700,000

384,108

STATE STREET NOMS LTD A/C MGRU

6,700,000

547,558

M&G Securities Limited

21,466,856

6.34

ORD GBP0.25 B1FW502

20,919,298

20,919,298

6.18

STATE STREET NOMS LTD A/C GMBM

20,410,207

20,410,207

STATE STREET NOMS LTD A/C GMBN

471,500

471,500

STATE STREET NOMS LTD A/C GMIF

37,591

37,591

5.75% CNV BDS 20/10/14 USD B4QBBF6

6,700,000

547,558

0.16

STATE STREET NOMS LTD A/C MGRU

6,700,000

547,558

End of Report