ANNOUNCEMENT TO THE AUSTRALIAN SECURITIES EXCHANGE: 11 APRIL 2014

SCHEME PROXY FORMS

Sierra Mining Limited (Sierra or the Company) is pleased to attach examples of the Shareholder and Optionholder Proxy Forms, and the Sale Facility Election Form that will accompany the Scheme Booklet. A copy of the Share Election Form, which will be available from the Company's Share Registry on request, is also attached.

A copy of the Scheme Booklet is available on the Sierra website at www.sierramining.com.au.

Enquiries: Clint McGhie, Company Secretary +61 8 9322 6322



0T00000010001 000 SRM

Lodge your vote:

By Mail:

Computershare Investor Services Pty Limited

GPO Box 1282 Melbourne

Victoria 3001 Australia

Alternatively you can fax your form to (within Australia) 1800 783 447 (outside Australia) +61 3 9473 2555

000

1301011221012102012221332120133322113

SMARM SAM SAMPLE

MFLRAJTO1H2N3 SMITH 1

F12L3ATSA12M3PLE STREET

1T2H3ESSAAMMPPLLEESHTIRLLEET TSHAEMPSLAEMEPSLETAHTIELL SSAAMMPPLLEEVEISLLTEATVEIC 3030

SAMPLEVILLE VIC 3030

For intermediary Online subscribers only

(custodians) www.intermediaryonline.com

For all enquiries call:

(within Australia) 1300 850 505 (outside Australia) +61 3 9415 4000

Proxy Form - Share Scheme

For your vote to be effective it must be received by 10:00am (WST) Wednesday, 14 May 2014

How to Vote on Item of Business

All your securities will be voted in accordance with your directions.

Appointment of Proxy

Voting 100% of your holding: Direct your proxy how to vote by marking one of the boxes opposite the item of business. If you do not mark a box your proxy may vote as they choose. If you mark more than one box on the item your vote will be invalid.

Voting a portion of your holding: Indicate a portion of your voting rights by inserting the percentage or number of securities you wish to vote in the For, Against or Abstain box or boxes. The sum of the votes cast must not exceed your voting entitlement or

100%.

Appointing a second proxy: You are entitled to appoint up to two proxies to attend the meeting and vote on a poll. If you appoint two proxies you must specify the percentage of votes or number of securities for each proxy, otherwise each proxy may exercise half of the votes. When appointing a second proxy write both names and the percentage of votes or number of securities for each in Step 1 overleaf.

A proxy need not be a securityholder of the Company.

www.investorcentre.com

Signing Instructions

Individual: Where the holding is in one name, the securityholder

must sign.

Joint Holding: Where the holding is in more than one name, all of the securityholders should sign.

Power of Attorney: If you have not already lodged the Power of Attorney with the registry, please attach a certified photocopy of the Power of Attorney to this form when you return it.

Companies: Where the company has a Sole Director who is also the Sole Company Secretary, this form must be signed by that person. If the company (pursuant to section 204A of the Corporations Act 2001) does not have a Company Secretary, a Sole Director can also sign alone. Otherwise this form must be signed by a Director jointly with either another Director or a Company Secretary. Please sign in the appropriate place to indicate the office held. Delete titles

as applicable.

Attending the Meeting

Bring this form to assist registration. If a representative of a corporate
securityholder or proxy is to attend the meeting you will need to provide the appropriate "Certificate of Appointment of Corporate Representative" prior to admission. A form of the certificate may be obtained from Computershare or online at www.investorcentre.com under the help tab, "Printable forms".
Comments & Questions: If you have any comments or questions for the company, please write them on a separate sheet of paper and return with this form.

Turn over to complete the form

View your securityholding, 24 hours a day, 7 days a week:

Review your securityholding

Update your securityholding

Your secure access information is:

SRN/HIN: I9999999999

PLEASE NOTE: For security reasons it is important that you keep your

SRN/HIN confidential.

MR SAM SAMPLE FLAT 123

123 SAMPLE STREET THE SAMPLE HILL SAMPLE ESTATE SAMPLEVILLE VIC 3030

Change of address. If incorrect, mark this box and make the

correction in the space to the left. Securityholders sponsored by a broker (reference number commences with 'X') should advise your broker of any changes.



I 9999999999 I N D


Proxy Form Please mark to indicate your directions

STEP 1

Appoint a Proxy to Vote on Your Behalf XX

I/We being a member/s of Sierra Mining Limited hereby appoint

the Chairman OR

of the Meeting

PLEASE NOTE: Leave this box blank if you have selected the Chairman of the

Meeting. Do not insert your own name(s).

or failing the individual or body corporate named, or if no individual or body corporate is named, the Chairman of the Meeting, as my/our proxy

to act generally at the meeting on my/our behalf and to vote in accordance with the following directions (or if no directions have been given, and to the extent permitted by law, as the proxy sees fit) at the Share Scheme Meeting of Sierra Mining Limited to be held at the Plaza Level, BGC Centre, 28 The Esplanade, Perth, Western Australia on Friday, 16 May 2014 at 10:00am (WST) and at any adjournment or postponement of that meeting.

STEP 2 Item of Business

PLEASE NOTE: If you mark the Abstain box for an item, you are directing your proxy not to vote on your behalf on a show of hands or a poll and your votes will not be counted in computing the required majority.

Resolution 1 Approval of the Share Scheme

The Chairman of the Meeting intends to vote undirected proxies in favour of the item of business.

SIGN Signature of Securityholder(s) This section must be completed.

Individual or Securityholder 1 Securityholder 2 Securityholder 3



Sole Director and Sole Company Secretary Director Director/Company Secretary

Contact

Name

Contact

Daytime

Telephone Date / /



S R M 1 8 1 4 8 3 A



0T00000010001 000 SRM

Lodge your vote:

By Mail:

Computershare Investor Services Pty Limited

GPO Box 1282 Melbourne

Victoria 3001 Australia

Alternatively you can fax your form to (within Australia) 1800 783 447 (outside Australia) +61 3 9473 2555

000

1301011221012102012221332120133322113

SMARM SAM SAMPLE

MFLRAJTO1H2N3 SMITH 1

F12L3ATSA12M3PLE STREET

1T2H3ESSAAMMPPLLEESHTIRLLEET TSHAEMPSLAEMEPSLETAHTIELL SSAAMMPPLLEEVEISLLTEATVEIC 3030

SAMPLEVILLE VIC 3030

For intermediary Online subscribers only

(custodians) www.intermediaryonline.com

For all enquiries call:

(within Australia) 1300 850 505 (outside Australia) +61 3 9415 4000

Proxy Form - Option Scheme

For your vote to be effective it must be received by 10:30am (WST) Wednesday, 14 May 2014

How to Vote on Item of Business

All your securities will be voted in accordance with your directions.

Appointment of Proxy

Voting 100% of your holding: Direct your proxy how to vote by marking one of the boxes opposite the item of business. If you do not mark a box your proxy may vote as they choose. If you mark more than one box on the item your vote will be invalid.

Voting a portion of your holding: Indicate a portion of your voting rights by inserting the percentage or number of securities you wish to vote in the For, Against or Abstain box or boxes. The sum of the votes cast must not exceed your voting entitlement or

100%.

Appointing a second proxy: You are entitled to appoint up to two proxies to attend the meeting and vote on a poll. If you appoint two proxies you must specify the percentage of votes or number of securities for each proxy, otherwise each proxy may exercise half of the votes. When appointing a second proxy write both names and the percentage of votes or number of securities for each in Step 1 overleaf.

A proxy need not be a securityholder of the Company.

www.investorcentre.com

Signing Instructions

Individual: Where the holding is in one name, the securityholder

must sign.

Joint Holding: Where the holding is in more than one name, all of the securityholders should sign.

Power of Attorney: If you have not already lodged the Power of Attorney with the registry, please attach a certified photocopy of the Power of Attorney to this form when you return it.

Companies: Where the company has a Sole Director who is also the Sole Company Secretary, this form must be signed by that person. If the company (pursuant to section 204A of the Corporations Act 2001) does not have a Company Secretary, a Sole Director can also sign alone. Otherwise this form must be signed by a Director jointly with either another Director or a Company Secretary. Please sign in the appropriate place to indicate the office held. Delete titles

as applicable.

Attending the Meeting

Bring this form to assist registration. If a representative of a corporate
securityholder or proxy is to attend the meeting you will need to provide the appropriate "Certificate of Appointment of Corporate Representative" prior to admission. A form of the certificate may be obtained from Computershare or online at www.investorcentre.com under the help tab, "Printable forms".
Comments & Questions: If you have any comments or questions for the company, please write them on a separate sheet of paper and return with this form.

Turn over to complete the form

View your securityholding, 24 hours a day, 7 days a week:

Review your securityholding

Update your securityholding

Your secure access information is:

SRN/HIN: I9999999999

PLEASE NOTE: For security reasons it is important that you keep your

SRN/HIN confidential.

MR SAM SAMPLE FLAT 123

123 SAMPLE STREET THE SAMPLE HILL SAMPLE ESTATE SAMPLEVILLE VIC 3030

Change of address. If incorrect, mark this box and make the

correction in the space to the left. Securityholders sponsored by a broker (reference number commences with 'X') should advise your broker of any changes.



I 9999999999 I N D


Proxy Form Please mark to indicate your directions

STEP 1

Appoint a Proxy to Vote on Your Behalf XX

I/We being an optionholder/s of Sierra Mining Limited hereby appoint

the Chairman OR

of the Meeting

PLEASE NOTE: Leave this box blank if you have selected the Chairman of the

Meeting. Do not insert your own name(s).

or failing the individual or body corporate named, or if no individual or body corporate is named, the Chairman of the Meeting, as my/our proxy

to act generally at the meeting on my/our behalf and to vote in accordance with the following directions (or if no directions have been given, and to the extent permitted by law, as the proxy sees fit) at the Option Scheme Meeting of Sierra Mining Limited to be held at the Plaza Level, BGC Centre, 28 The Esplanade, Perth, Western Australia on Friday, 16 May 2014 at 10:30am (WST) and at any adjournment or postponement of that meeting.

STEP 2 Item of Business

PLEASE NOTE: If you mark the Abstain box for an item, you are directing your proxy not to vote on your behalf on a show of hands or a poll and your votes will not be counted in computing the required majority.

Resolution 1 Approval of the Option Scheme

The Chairman of the Meeting intends to vote undirected proxies in favour of the item of business.

SIGN Signature of Securityholder(s) This section must be completed.

Individual or Securityholder 1 Securityholder 2 Securityholder 3



Sole Director and Sole Company Secretary Director Director/Company Secretary

Contact

Name

Contact

Daytime

Telephone Date / /



S RM 1 8 1 4 8 3 B















000001

000

SAM

1301011221012102012221332120133322113











MR JOHN SMITH 1

FLAT 123

123 SAMPLE STREET

THE SAMPLE HILL

SAMPLE ESTATE

SAMPLEVILLE VIC 3030























           

             





         

       









        

        

           







            



         



  



        

         







           



             







         























         



           



        



          














MR SAM SAMPLE UNIT 123

I 123456789 IND







SAMPLE STREET SAMPLETOWN NSW 2001





 




 

 

 







 


  







 











 

























S R M


1 8 1 4 8 3 C

Return your Form:

By Mail:

Computershare lnvestor Services Pty Limited

GPO Box 52

Melbourne Victoria 3001

Australia

OOOOO1000 SRM

MR SAM SAMPLE UNlT 123

SAMPLE STREET SAMPLETOWN NSW 2001

For all enquiries regarding the

Schemes:

Phone:
(within Australia) 08 9322 6322 (outside Australia) +61 8 9322 6322

For all enquiries regarding your holding:

Phone:
(within Australia) 1300 850 505 (outside Australia) +61 3 9415 4000

Share E ect on Form - Scheme Cons derat on

For your Election to be valid, this Share Election Form must be received no later than 5.00pm on the Record Date (expected to be 28 May 2014). No late forms will be accepted.


This is an important document that requires your immediate attention. lt can only be used in relation to the securityholding represented by the details printed overleaf. lf you are in doubt about how to deal with this form, please contact your financial or other professional adviser.

Step 1: Make an Election

This Share Election Form relates to the recommended Merger between Sierra Mining Limited ('Sierra") and RTG Mining lnc. ('RTG") and should be read in conjunction with the accompanying Scheme Booklet dated 9
April 2014. Unless the context otherwise requires, the definitions
contained in the Scheme Booklet also apply in this Share Election From.
To make a Share Election, as defined in the accompanying Scheme Booklet under section 13, please follow the instructions set out on the back of this Form. You should only use this form if you wish to receive Scheme Consideration in the form of RTG Shares and RTG Options ("Scheme Consideration") listed on the TSX instead of RTG CDis and RTG Option CDis quoted on ASX.
The decision whether to elect to receive RTG Shares and RTG Options listed on the TSX (rather than RTG CDls and RTG Option CDls quoted on ASX) will depend on your individual circumstances. You should seek advice from your own financial, legal or other professional adviser before deciding whether to make this election.
lf you wish to ELECT to receive Scheme Consideration listed on the TSX, you need to complete Step 1 and sign in Step 2 on the reverse of this form. The deadline for receipt of this Election Form by the Sierra Registry is 5.00pm on the Record Date (expected to be 28 May 2014). lf your valid instructions are not received by this time, you will receive your Scheme Consideration in the form of RTG CDls and RTG Option CDls quoted on ASX.

Step 2: Signing instructions

individual: Where the holding is in one name, the securityholder must sign.
Joint Holding: Where the holding is in more than one name, all of the securityholders must sign.
Power of Attorney: Please attach a certified photocopy of the Power of Attorney to this form when you return it.
Companies: Where the company has a Sole Director who is also the Sole Company Secretary, this form must be signed by that person in the box labelled Sole Director and Sole Company Secretary . lf the company (pursuant to secion 204A of the Corporations Act 2001) does not have a Company Secretary, a Sole Director can also sign alone as Sole Director . Otherwise this form must be signed by a Director jointly with either another Director or a Company Secretary. Please sign in the appropriate place to indicate the office held and delete title as applicable.
Deceased Estate: All executors must sign and a certified copy of
Probate or Letters of Administration must accompany this form.
Entering contact details is not compulsory, but will assist us if we need to contact you.

Turn over to complete the form

916CR_0_Sample_CA/000001/000001/i


Share Election Form - Scheme Consideration

I1111111111 l N D

For your security keep your SRN/ HlN confidential.

STEP 1

Make an Election

You can elect to receive Scheme Consideration in the form of RTG Shares and RTG Options listed on the TSX instead of RTG CDls and RTG Option CDls quoted on ASX.
lf you wish to receive Scheme Consideration listed on the TSX please mark the box below and return the form in accordance with the instructions on this form.
lf you wish to receive Scheme Consideration quoted on ASX you do NOT need to complete or return this form.
lf you give unclear or conflicting instructions, your Election will be invalid and you will receive your Scheme Consideration on the ASX.

1. Election - TSX
To receive Scheme Consideration in the form of RTG Shares and RTG Options listed on the TSX
2. ASX
To receive Scheme Consideration in the form of RTG CDls and RTG Option CDls quoted on ASX
you DO NOT NEED TO COMPLETE OR RETURN THlS FORM

STEP 2 Signature of Securityholder{s)This section must be completed.

l/We hereby make the Election to receive the Scheme Consideration listed on the TSX as set out above.

Individual or Securityholder 1 Securityholder 2 Securityholder 3

Sole Director and Sole Company Secretary/ Sole Director {cross out titles as applicable)

Contact

Director Director/Company Secretary

{cross out titles as applicable)

Contact

Daytime

Name

Telephone

Date / /

Privacy Statement

We collect the personal information you provide us in order to enable us to provide you with registry and related services, inform you of our other products and services, perform administrative and operational functions and prevent fraud or crime or where otherwise required or authorised by law. ln addition, the issuer of your securityholding may authorise us on their behalf to send you marketing material or include such material in a corporate communication. We may be required to collect your personal information under the Corporations Act 2001 (Cth) and ASX Settlement Operating Rules. We may disclose your personal information to our related bodies corporate and to other individuals or
companies who assist us in supplying our services or who perform functions on our behalf, to issuers for whom we maintain securities registers
or to third parties upon direction by the issuer where related to the issuers administration of the securityholding, or where you have otherwise agreed we may disclose it. Some of these recipients may be located outside Australia, including in the following countries: Canada, lndia, New Zealand, the Philippines, the United Kingdom and the United States of America. For further details, including how to access and correct your personal information, and information on our privacy complaints handling procedure, please contact our Privacy Officer at privacy@computershare.com.au or see our Privacy Policy at http://www.computershare.com/au/help/Pages/privacy-policies.aspx.

S R M 9 9 9 9 9 9 A

distributed by