Raven Gold Corp.

EXHIBIT 10.4

Raven Gold Corp.

May 30, 2006

Xx. Xxxxxxx X. Xxxxxx Xx.

President & CEO

Xxxx Xxxx Resources Corp

Re: Joint Venture Agreement on the La Currita Groupings, near Temoris, Chihuahua, Mexico between Amermin S.A. de C.V., a 97% owned subsidiary of Xxxx Xxxx Resources Corp. (Xxxx) and Raven Gold Corp. (RAVEN) in trust for a Mexican subsidiary to be created at a later date. The La Currita Groupings are approximately 192 acres and are known as Xxxxxx 0, Xx Xxxxxxx, Xx Curra, and La Currita (Head of group).

Dear Xx. Xxxxxx;

We are pleased to present the following terms regarding the La Currita Groupings.

Terms:

Upon the signing of this Agreement, RAVEN agrees to purchase 25% of Tara’s interests in the La Currita Groupings by completing the following;

Make a non-refundable payment of US$75,000.00, coinciding with the signing of this Agreement (the payment will be refundable if a satisfactory title search is not secured by RAVEN from Xxxx by August 17, 2006);

Make a payment of US$125,000.00 by August 17, 2006;

Make a payment of US$150,000.00 by October 17, 2006;

Make a payment of US$300,000.00 by December 17, 2006; and

RAVEN must issue to Xxxx 250,000 Rule 144 restricted common shares

Upon signing of this Agreement, Xxxx agrees to:

Make available a certified copy of title for the La Currita Groupings as soon as one is received or no later then August 17, 2006.

RAVEN agrees to make all property payments and any other payments deemed necessary to maintain the properties and keep in good standing the full interest in the La Currita Groupings and continue to make these payments as long as the Joint Venture outlined in this agreement is in effect. Payments will be escrowed for payment at least 14 days before payment is due.

RAVEN will make an additional payment of US $100,000.00 on every anniversary date of this agreement to maintain its interests earned, and to keep the Joint Venture in good standing.

On a monthly basis, the net operating revenue derived from La Currita will be distributed at the interest level earned, according to the overall terms of this agreement, by each party on the last day of the month during which the revenue was generated.

Raven will have the right to invest up to a maximum of $500,000.00 Start-Up Capital, which is unrelated to any payments or expenditures within this agreement, under special terms. Whereby the investment will be paid back out of net operating revenue at a rate higher then the current interest earned. On a monthly basis, 60% of the net operating revenue derived from La Currita, will be set aside and credited or paid out to Raven towards recovery of the Start-Up Capital investment by Raven. The remainder of the net operating revenue derived from La Currita, during the recovery of the Start-Up Capital phase, will be distributed to Xxxx. Once the full amount of the Start-Up Capital has been recovered from the 60% set aside, the revenue sharing will revert back to the interest that has been earned according to the overall terms of this agreement.

RAVEN may increase its interest in the La Currita project to 40% thereby reducing Tara's interest in the La Currita Groupings to 60%, after first notifying Xxxx of RAVEN’s intentions and after the following conditions have been met:

RAVEN spends an additional US$1.0 million, over and above the Start-Up Capital, on exploration and development within 18 months of the date this agreement is signed. Xxxx agrees that RAVEN will be the operator overseeing the additional US$1.0 million expenditure; however, Xxxx may have it representatives on location at any and all times to observe all operations, and may audit expenditures as necessary;

RAVEN will supply the expertise and expenditures, within the amount outlined in 6)a., necessary to achieve monthly production at the La Currita Processing Plant of 4,500 tons per month for 3 consecutive months and maintain ongoing production of a minimum of 4,000 tons per month;

Once RAVEN has notified Xxxx in writing, along with supporting documents, that it has spent US$1.0 million in exploration work on La Currita, the Joint Venture Partners agree to enter into a standard joint venture agreement by which it will have a 40% working interest in the La Currita Groupings and Xxxx will own a 60% interest. At this point, RAVEN is to be appointed operator of the joint venture and will remain the operator as long as it maintains it’s 40% participation in the joint venture by paying all property payments and it’s proportionate share of expenses or decides to withdraw from such responsibility; and

RAVEN issues to Xxxx an additional 250,000 Rule 144 restricted common shares at notification to increase its interest.

A standard dilution clause will apply in case one of the partners decides not to participate financially for its proportionate share in any exploration or development program submitted by the operator. Should the operator decide not to present any exploration or

development programs, the other party can present one and become the operator.

As a basis for the dilution clause, each party will be deemed to have invested the following amount of money in the La Currita Groupings:

RAVEN: US$1,600,000 (representing its 40% interest); and

Xxxx: US$2,400,000 (representing its 60% interest).

Once a participant has been diluted to a 10% interest, this interest will automatically convert into a 3% N.S.R. and the joint venture agreement will become null and void. For a period of no longer then 1 year, the majority party will have the option to reduce the 3% NSR to 1% in exchange for a US$2,000,000 payment;

Each party, as long as their original participation is maintained, will have one vote each in the decisions of the joint venture management committee. An arbitration clause will be included in case of disagreement;

It is also agreed that RAVEN has an option to increase its interest in the La Currita Groupings to 60% thereby reducing Tara's interest in the La Currita Groupings to 40%, on the following conditions:

RAVEN spends an additional US$2.5 million over and above the US$1.0 million expenditures outlined in 6(a) above on exploration and development within 36 months of the date this agreement is signed. Xxxx agrees that RAVEN will remain as operator overseeing the US$2.5 million expenditure; however, Xxxx may have it representatives on location at any and all times to observe all operations, and may audit expenditures by RAVEN as necessary;

RAVEN will supply the expertise and expenditures, within the amount outlined in 9)a., necessary to achieve monthly production at the La Currita Processing Plant of 9,000 tons per month for 3 consecutive months and maintain ongoing production of a minimum of 8,000 tons per month;

RAVEN issues to Xxxx 250,000 Rule 144 restricted common shares at notification to increase its interest; and

RAVEN agrees that after it has earned its 60%, Xxxx will receive 90 days, from the date of approval of any exploration budget, to pay its proportionate share of actual expenditures.

The dilution clause outlined in 7 above, will be revised upon RAVEN increasing its interests to 60%, and as a basis for the dilution clause, each party will be deemed to have invested the following amount of money in the La Currita Groupings:

RAVEN: US$4,100,000 (representing its 60% interest); and

Xxxx: US$2,733,333 (representing its 40% interest).

10.

RAVEN agrees that it will divide any economic benefits gained through this agreement based in the earned interest at the time of benefit.

11.

It is understood that Xxxx has an agreement with Paramount Gold Mining Corp, which it holds under the “San Xxxxxx Joint Venture Agreement” dated August 3^rd, 2005 to supply and process ore at the La Currita Mill at a minimum rate of 75 tons per day and its first right of refusal to participate in any mill improvements that will increase the daily capacity of the La Currita mill operation, therefore increasing RAVEN’s minimum rate (75 tpd) proportionally.

12.

Should RAVEN decide not to pursue exploration efforts, then RAVEN will cease to be the operator. In such a case, RAVEN will continue to hold its earned interest in the La Currita Groupings and all portions of this agreement shall remain in effect and binding on each party, but may be diluted out as outlined clause 7 above.

13.

Subject to any disclosure requirements as promulgated by the Securities and Exchange Commission, the parties agree to consult each other and agree on joint news releases in the event of any public disclosure. Furthermore, all news releases shall be jointly reviewed and released with the following format included at the beginning of each news release: “CHICAGO, “Appropriate Date” (MARKETWIRE) – (Other OTC: XXXX.XX) Xxxx Xxxx Resources Corp. and Raven Gold Corp (“XXXX.XX”) Raven Resources is pleased to announce…This text may be revised by Xxxx at any time.

14.

Either party in the joint venture shall have first right of refusal on the sale of any portion of its interest in the La Currita Groupings to a third party for 30 days from the date of notification.

The parties mutually understand that, subject to the conditions contained herein, this letter constitutes a binding agreement.

Please indicate your concurrence with the foregoing by affixing your signature below, and thereafter transmitting such executed copy in the manner heretofore described.

DATED this May 30, 2006

Per: /s/

President

Raven Gold Corp.

00000-00^xx Xxxxxx

Xxxxxxx, X.X.

Xxxxxx X0X 0X0

DATED this May 30, 2006

Per: /s/ Xxxxxxx X. Xxxxxx, Xx.

Per: /s/ Xxxxxx Xxxxxxx Xxxxxxx

Xxxxxxx X. Xxxxxx Xx.

Xxxxxx Xxxxxxx Xxxxxxx

President & CEO

President

Xxxx Xxxx Resources Corp.

Amermin S.A. De C.V.

Xxxx Xxxx Raven La Xxxxxxx XX 5-30-06 rec 1-26-07

Raven Gold Corp.

November 20, 2006

Xx. Xxxxxxx X. Xxxxxx Xx.

President & CEO

Xxxx Xxxx Resources Corp

Re: Payment Extension and modifications to the Joint Venture Agreement on the La Currita Groupings, near Temoris, Chihuahua, Mexico between Amermin S.A. de C.V., a 97% owned subsidiary of Xxxx Xxxx Resources Corp. (Xxxx) and Raven Gold Corp. (RAVEN) in trust for a Mexican subsidiary to be created at a later date. The La Currita Groupings are approximately 192 acres and are known as Xxxxxx 0, Xx Xxxxxxx, Xx Curra, and La Currita (Head of group).

Dear Xx. Xxxxxx;

This agreement will serve to provide an extension to the original Joint Venture Agreement regarding the La Currita Groupings Joint Venture dated the 30^th Day of May, 2006 between Xxxx Xxxx Resources Corp and Raven Gold Corp..

The payment commitments taken from the original Joint Venture Agreement, described in “Exhibit A” will be modified as follows;

The 1^st paragraph under “Terms: 1.d)” contained in Exhibit A below, will be extended as follows;

1) Make a payment of US$100,000.00 by January 31, 2006

2) Make a payment of US$200,000.00 by March 1, 2007

The paragraph under “Terms: 2.” Contained in Exhibit A below, will make the following adjustment;

The underlying property payment for the La Currita concessions that is due November 25, 2006 will be allowed to be paid together with the December 25, 2006 payment no later than December 31, 2006, for a total payment due no later than December 31, 2006 of US$100,000.00

Every other part of the original agreement will be abided by, with no changes or modifications.

Exhibit A

Terms:

15.

Upon the signing of this Agreement, RAVEN agrees to purchase 25% of Tara’s interests in the La Currita Groupings by completing the following;

Make a payment of US$125,000.00 by August 17, 2006;

Make a payment of US$150,000.00 by October 17, 2006;

Make a payment of US$300,000.00 by December 17, 2006; and

RAVEN must issue to Xxxx 250,000 Rule 144 restricted common shares

Upon signing of this Agreement, Xxxx agrees to:

Make available a certified copy of title for the La Currita Groupings as soon as one is received or no later then August 17, 2006.

16.

End of Exhibit

The parties mutually understand that, subject to the conditions contained herein, this letter constitutes a binding agreement.

Please indicate your concurrence with the foregoing by affixing your signature below, and thereafter transmitting such executed copy in the manner heretofore described.

DATED this November 20, 2006

Per: /s/

President

Raven Gold Corp.

00000-00^xx Xxxxxx

Xxxxxxx, X.X.

Xxxxxx X0X 0X0

DATED this November 20, 2006

Per: /s/ Xxxxxxx X. Xxxxxx, Xx.

Per: /s/ Xxxxxx Xxxxxxx Xxxxxxx

Xxxxxxx X. Xxxxxx Xx.

Xxxxxx Xxxxxxx Xxxxxxx

President & CEO

President

Xxxx Xxxx Resources Corp.

Amermin S.A. De C.V.

Raven Gold Corp.

January 31, 2007

Xx. Xxxxxxx X. Xxxxxx Xx.

President & CEO

Xxxx Xxxx Resources Corp

Dear Xx. Xxxxxx;

The payment commitments taken from the original Joint Venture Agreement, described in “Exhibit A” will be modified as follows;

The 1^st paragraph under “Terms: 1.d)” contained in Exhibit A below, has been previously extended by an extension agreement dated November 30, 2006, but will now be extended as follows;

1) Make a payment of US$100,000.00 by March 1, 2007

2) Make a payment of US$200,000.00 by April 1, 2007

Every other part of the original agreement will be abided by, with no changes or modifications.

Exhibit A

Terms:

17.

Upon the signing of this Agreement, RAVEN agrees to purchase 25% of Tara’s interests in the La Currita Groupings by completing the following;

Make a payment of US$125,000.00 by August 17, 2006;

Make a payment of US$150,000.00 by October 17, 2006;

Make a payment of US$300,000.00 by December 17, 2006; and

RAVEN must issue to Xxxx 250,000 Rule 144 restricted common shares

Upon signing of this Agreement, Xxxx agrees to:

Make available a certified copy of title for the La Currita Groupings as soon as one is received or no later then August 17, 2006.

18.

End of Exhibit

The parties mutually understand that, subject to the conditions contained herein, this letter constitutes a binding agreement.

Please indicate your concurrence with the foregoing by affixing your signature below, and thereafter transmitting such executed copy in the manner heretofore described.

DATED this January 31, 2007

Per: /s/

President

Raven Gold Corp.

00000-00^xx Xxxxxx

Xxxxxxx, X.X.

Xxxxxx X0X 0X0

DATED this January 31, 2007

Per: /s/ Xxxxxxx X. Xxxxxx, Xx.

Per: /s/ Xxxxxx Xxxxxxx Xxxxxxx

Xxxxxxx X. Xxxxxx Xx.

Xxxxxx Xxxxxxx Xxxxxxx

President & CEO

President

Xxxx Xxxx Resources Corp.

Amermin S.A. De C.V.

Xxxx Xxxx La Currita 2nd JV Pmt Extension 2-22-07

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