Coeur Mining DEFA14A Additional proxy soliciting materials | CDE 29 Oct 07

Exhibit 99.6


Amending Agreement
relating to Option Deed

Coeur d’Alene Mines Corporation
Rosignol Pty Ltd

AURORA PLACE, 88 PHILLIP STREET, SYDNEY NSW 2000, DX 117 SYDNEY
TEL: +61 2 9921 8888 FAX: +61 2 9921 8123
www.minterellison.com

Amending Agreement
relating to Option Deed


Details		3

Agreed terms		4

1.	Defined terms & interpretation	4
1.1	Defined terms	4
1.2	Interpretation	4

2.	Amendments	4
2.1	Amendments to Option Deed	4
2.2	Single document	4
2.3	Confirmation and acknowledgment	4

3.	General	4
3.1	Governing law and jurisdiction	4
3.2	Confidentiality	4
3.3	Counterparts	4

Signing page		5

Details


Date		23 October 2007

Parties

Name		Coeur d’Alene Mines Corporation
Short form name		Coeur
Incorporated		Idaho, USA
Notice details		505 Front Avenue
		Coeur d’Alene
		Idaho 83814
		USA
		Facsimile: +1 208 667 2213
		Attention: Company Secretary

Name		Rosignol Pty Ltd
Short form name		Rosignol
ACN		078 287 546
Notice details		c/ - 45a Wyalong St
		Willoughby NSW 2068
		Facsimile: +61 2 9247 3932
		Attention: Peter Nightingale

Background

A The parties entered into the Option Deed on 3 May 2007 which was amended by a letter agreement dated 24 September 2007.

B The parties wish to amend the Option Deed as set out in this document.

Agreed terms

1.		Defined terms & interpretation

1.1		Defined terms

		Capitalised terms used in this agreement and not otherwise defined have the meanings given to them in the Option Deed.

1.2		Interpretation

		Clauses 1.4 and 1.5 of the Option Deed apply to this document as if set out in full in this clause 1.2.

2.		Amendments

2.1		Amendments to Option Deed

		The parties agree that the Option Deed is amended as follows:

	(a)		In clause 1.2 in the definition of ‘Exercise Period’, the words ‘the date 6 months after the date of this deed’ are replaced with ‘7 December 2007’ and the words ‘the date six months from the date of this deed’ are replaced with ‘7 December 2007’.

	(b)		In clause 1.2 in the definition of ‘Expiry Date’, the words ‘the date 7 months from the date of this deed’ are replaced with ‘24 December 2007’.

2.2		Single document

		The Option Deed as amended by this document is to be read as a single integrated document incorporating the amendments effected by this document.

2.3		Confirmation and acknowledgment

		Each party confirms that the Option Deed, as amended by clause 2.1, remains in full force and effect.

3.		General

3.1		Governing law and jurisdiction

		This agreement is governed by the law of New South Wales, Australia and each party irrevocably and unconditionally submits to the non-exclusive jurisdiction of the courts of New South Wales, Australia.

3.2		Confidentiality

		Clause 9 of the Option Deed applies to this document as if set out in full in this clause 3.2.

3.3		Counterparts

		This document may be executed in counterparts. All executed counterparts constitute one agreement.

Signing page

EXECUTEDas an agreement.

SignedforCoeur d’Alene Mines
Corporationby


		/s/ Dennis Wheeler	¬

		Signature of officer

/s/ Joseph Matthews	¬	Dennis Wheeler

Signature of witness		Name of officer (print)

Joseph Matthews		Chief Executive Officer

Name of witness (print)		Office held

SignedbyRosignol Pty Ltd

/s/ Sandra J. Nightingale	¬	/s/ Peter J. Nightingale	¬

Signature of director		Signature of director/company secretary
		(Please delete as applicable)

Sandra J. Nightingale		Peter J. Nightingale

Name of director (print)		Name of director/company secretary (print)

Coeur Mining (CDE) DEFA14AAdditional proxy soliciting materials