Document:

Exhibit 10.5

              AMENDMENT TO MINERAL RIGHTS REVENUE SHARING AGREEMENT
                              DATED APRIL 24, 2006

This Amendment dated December 8, 2010.

     BETWEEN:

Jorge Alberto Almarez ("Mr. Almarez"), an individual under the laws of Mexico
and having an office at:

     157 Calle Federico
     Rosarito, BC Mexico

     AND:

Placer Del Mar, Ltd. ("Placer"), a corporation, duly incorporated under the laws
of Nevada and having an office at:

     3707 Fifth Ave. # 351
     San Diego, CA 92103

WHEREAS:

1.

1.1 Mr. Almarez is the registered and beneficial owner of property located at
157 Calle Federico, Rosarito, BC Mexico (the "PROPERTY");

1.2 Mr. Almarez has agreed to grant to Placer the right to free access and
exploration of the Property together with the right to file a mining claim on
the Property upon terms and conditions hereinafter set forth;

1.3 Mr. Almarez has agreed to grant to Placer the right to assign specific
mineral extraction activities to Roca Cantera Y Marmol, Canteras Acabados Finos
related only to the extraction of Mexican Shellstone-Limestone ("Conchuela")
from the Property upon terms and conditions hereinafter set forth.
<PAGE>
                      NOW THEREFORE THIS AMENDED AGREEMENT

WITNESSETH that in consideration of the mutual covenants and provisos herein
contained, THE PARTIES HERETO AGREE AS FOLLOWS:

2. MR. ALMAREZ'S REPRESENTATIONS

2.1 Mr. Almarez represents and warrants to Placer that:

(a)  Mr. Almarez is the registered and beneficial owner of the Property and
     holds the sole right to explore and develop the Property;

(b)  Mr. Almarez, as registered and beneficial owner of the Property, holds all
     title and unimpeded Property access rights free and clear of all liens,
     charges and claims of others;

(c)  There are no adverse claims or challenges against or to Mr. Almarez's
     ownership of or title to the Property nor to the knowledge of the Mr.
     Almarez is there any basis therefore, and there are no outstanding
     agreements or options to acquire or purchase the Property or any portion
     thereof;

(e)  Mr. Almarez has the full right, authority and capacity to enter into this
     Agreement without first obtaining the consent of any other person or legal
     entity and the consummation of the transaction herein contemplated will not
     conflict with or result in any breach of any covenants or agreements
     contained in, or constitute a default under, or result in the creation of
     any encumbrance under the provisions of any shareholders' or directors'
     resolution, indenture, agreement or other instrument whatsoever to which
     Mr. Almarez is a party or by which it is bound or to which it is subject;
     and

(f)  No proceedings are pending for, and Mr. Almarez is unaware of any basis
     for, the institution of any proceedings which could lead to the placing of
     Mr. Almarez in bankruptcy, or in any position similar to bankruptcy.

2.2 The representations and warranties of Mr. Almarez set out in paragraph 2.1
above form a part of this Agreement and are conditions upon which Placer has
relied in entering into this Agreement and shall survive the acquisition of any
interest in the Property by Placer.

2.3 Mr. Almarez will indemnify and hold Placer harmless from all loss, damage,
costs, actions and suits arising out of or in connection with any breach of any
representation, warranty, covenant, agreement or condition made by it and
contained in this Agreement.

2.4 Mr. Almarez acknowledges and agrees that Placer has entered into this
Agreement relying on the warranties and representations and other terms and
conditions of this Agreement and that no information which is now known or which

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<PAGE>
may hereafter become known to Placer shall limit or extinguish the right to
indemnity hereunder, and, in addition to any other remedies it may pursue,
Placer may deduct the amount of any such loss or damage from any amounts payable
by it to Mr. Almarez hereunder.

3. PLACER'S REPRESENTATIONS

3.1 Placer warrants and represents to Mr. Almarez that it is a corporation, duly
incorporated under the laws of Nevada with full power and absolute capacity to
enter into this Agreement and that the terms of this Agreement have been
authorized by all necessary corporate acts and deeds in order to give effect to
the terms hereof.

3.2 Placer has properly filed a Mining Claim on April 24, 2006, duly and validly
located and recorded in a good and miner-like manner pursuant to the laws of
Mexico and said Mining Claim is effective and in good standing in Mexico as of
the Effective Date of this Agreement.

3.3 Placer has entered into a Mineral Extraction Agreement on December 8, 2010
with Roca Cantera Y Marmol, Canteras Acabados Finos related to the extraction of
only Mexican Shellstone-Limestone ("Conchuela") on property located at 157 Calle
Federico, Rosarito, BC Mexico per its rights as Operator and right to appoint a
nominee under the Mineral Rights Revenue Sharing Agreement dated April 24, 2006
between Placer and Mr. Almarez as amended on December 8, 2010.

4. GRANT OF MINERAL EXPLORATION AND MINING RIGHTS

4.1 As of the date of this Agreement, Mr. Almarez hereby gives and grants to
Placer the sole and exclusive right to establish mineral claims on the Property,
subject to a payment of $400,000 by Placer to Mr. Almarez to be paid in equal
payments over sixty (60) months in the amount of $6,666 beginning no later than
June 1, 2011 for the exclusive right to begin extracting only Conchuela from the
Property commencing December 8, 2010. Such payments shall be lieu of the
original 1% Net Smelter Returns royalty originally reserved in favor of Mr.
Almarez in the Mineral Rights Revenue Sharing Agreement dated April 24, 2006 and
relate only to the mining and extraction of Conchuela, by performing the acts
and deeds and paying the sums provided for in paragraph 5. All minerals, other
than Conchuela, mined or extracted from the Property remain subject to the 1%
Net Smelter Returns royalty as stated in the original Mineral Rights Revenue
Sharing Agreement dated April 24, 2006.

4.2 The term of the option shall be for a period of 30 years from the signing
date of this agreement, renewable upon the anniversary date of this agreement
for an additional 30 year period at the sole discretion of Placer for a one-time
payment of $100,000.

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<PAGE>
5. CONSIDERATION FOR THE GRANT OF MINERAL EXPLORATION AND MINING RIGHTS

5.1 In order to keep the Grant of Mineral Exploration and Mining Rights granted
to Placer in good standing and in force and effect, Placer shall be obligated to
the following:

     (a)  CASH PAYMENTS

          Payment of $2,000 to Mr. Almarez, acknowledged as received by Mr.
          Almarez on June 3, 2005.

     (b)  CONTRACT COMMENCEMENT AND PAYMENTS

          Placer shall be deemed to be obligated to pay Mr. Almarez $400,000 as
          of the date of the commencement of extraction activities on December
          8, 2010. Payment of $400,000 to Mr. Almarez to be paid in equal
          payments over sixty (60) months in the amount of $6,666 beginning no
          later than June 1, 2011 for the exclusive right to begin extracting or
          utilize Placer's Nominee to begin extracting only the mineral known as
          Conchuela from the Property commencing on December 8, 2010.

     (c)  PROPERTY PAYMENTS AND ASSESSMENT WORK

          Pay, or cause to be paid, to Mr. Almarez, or on Mr. Almarez's behalf
          as Placer may determine, a 1% Net Smelter Returns royalty reserved in
          favor of Mr. Almarez for all minerals other than Conchuela extracted
          by Placer or its Nominee from the Property per Paragraph 11. of this
          agreement.

7. RIGHT TO ABANDON PROPERTY INTERESTS

Placer, at its sole discretion, may abandon all interests and cease mineral
exploration and mining work in the interests of the Property at any time through
written notice to Mr. Almarez. Upon receipt of such notice, Mr. Almarez may
request that Placer transfer title to such interests to Mr. Almarez, and Placer
hereby agrees to do so, and upon expiry of the 30 days, or upon the earlier
transfer thereof, such interests shall cease to be part of the Property.

8. TERMINATION OF AGREEMENT

8.1 This Agreement shall terminate upon 30 calendar days' written notice
provided by Mr. Almarez to Placer if Placer fails to make the required payments
per Paragraph 5. of this Agreement.

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<PAGE>
8.2 If Placer shall be in default of any requirement set forth in paragraph 5.1
herein, Mr. Almarez shall give written notice to Placer specifying the default
and Placer shall not lose any rights granted under this Agreement, unless within
30 days after the giving of notice of default by Mr. Almarez, Placer has failed
to take reasonable steps to cure the default by the appropriate performance.

8.3 This Agreement shall terminate upon 30 calendar days' written notice
provided by Placer to Mr. Almarez, without cause. Such written notice shall
subject Placer to complete abandonment of the Property, and require Placer
within 90 days of said written notice to return the Property to its original
state and physical condition as of the date of this Agreement.

10. RIGHT OF ENTRY

For so long as this Agreement continues in full force and effect, Placer, its
employees, agents and independent contractors shall have the sole and exclusive
right and option to:

(a)  enter upon the Property;

(b)  have exclusive and quiet possession of the Property;

(c)  incur Expenditures;

(d)  bring upon and erect upon the Property such mining facilities as Placer may
     consider advisable and operate the property as a mine; and

(e)  remove from the Property and sell or otherwise dispose of mineral products.

11. NET SMELTER RETURNS ROYALTY

11.1 On the date Placer commences commercial production on the Property, other
than commercial production of Conchuela, Mr. Almarez shall be entitled to
receive and Placer shall pay to Mr. Almarez 1% of Net Smelter Returns annually.

12. THIS AGREEMENT IS THE SOLE AGREEMENT BETWEEN THE PARTIES AND SUPERCEDES ANY
AND ALL PREVIOUS AGREEMENTS BETWEEN THE PARTIES.

12.1 By signing this Agreement, any and all previous oral and written agreements
between the parties shall be deemed to be unenforceable, null and void as of the
date of this Agreement.

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<PAGE>
SIGNED, SEALED, AND DELIVERED by MR. ALMAREZ in the presence of:

Signature /s/ Jorge Alberto Almarez         (Jorge Alberto Almarez) Date 12/8/10
         -------------------------------                                 -------
157 Calle Federico # 157
BC, Mexico

SIGNED, SEALED, AND DELIVERED by PLACER in the presence of:

Signature /s/ Humberto Bravo                 (Humberto Bravo)       Date 12/8/10
         -------------------------------                                 -------
Placer Del Mar, Ltd.
3707 Fifth Ave. # 351
San Diego, CA 92103-4221

                                       6Exhibit 10.6

                       MINERAL EXTRACTION RIGHTS AGREEMENT
                             DATED DECEMBER 8, 2010

     BETWEEN:

, a corporation, duly incorporated under the laws of Nevada and having an office
at;

     PLACER DEL MAR, LTD. ("PLACER")
     3707 Fifth Ave. # 351
     San Diego, CA 92103

     AND:

, a corporation, duly incorporated under the laws of Mexico and having an office
at;

     ROCA CANTERA Y MARMOL
     CANTERAS ACABADOS FINOS
     Margaritas No.48 Col. Jardines De Qro.
     Los Arcos, BC. Mexico 22127

WHEREAS :

1.

1.1 Placer is the beneficial owner of certain rights as contained in a Mineral
Rights Revenue Sharing Agreement dated April 24, 2006, as amended on December 8,
2010, pertaining to the right of free access and exploration of property located
at 157 Calle Federico, Rosarito, BC Mexico (the "PROPERTY");

1.2 Placer has the right per the Mineral Rights Revenue Sharing Agreement to
assign specific mineral extraction activities to Roca Cantera Y Marmol, Canteras
Acabados Finos related only to the extraction of Mexican Shellstone-Limestone
("Conchuela") from the Property upon terms and conditions hereinafter set forth.

     NOW THEREFORE THIS AGREEMENT WITNESSETH that in consideration of the mutual
covenants and provisos herein contained, THE PARTIES HERETO AGREE AS FOLLOWS:

2. PLACER'S REPRESENTATIONS

2.1 Placer warrants and represents to Cantera Y Marmol, Canteras Acabados Finos
that it is a corporation, duly incorporated under the laws of Nevada with full
power and absolute capacity to enter into this Agreement and that the terms of
this Agreement have been authorized by all necessary corporate acts and deeds in
order to give effect to the terms hereof.
<PAGE>
2.2 Placer has properly filed a Mining Claim on April 24, 2006, duly and validly
located and recorded in a good and miner-like manner pursuant to the laws of
Mexico and said Mining Claim is effective and in good standing in Mexico as of
the Effective Date of this Agreement.

2.3 Placer has entered into a Mineral Extraction Agreement on December 8, 2010
with Cantera Y Marmol, Canteras Acabados Finos related to the extraction of only
Mexican Shellstone-Limestone ("Conchuela") on property located at 157 Calle
Federico, Rosarito, BC Mexico per its rights as Operator and right to appoint a
nominee under the Mineral Rights Option Agreement dated April 24, 2006 between
Placer and Mr. Almarez as amended on December 8, 2010.

3. CANTERA Y MARMOL, CANTERAS ACABADOS FINOS REPRESENTATIONS

3.1 Cantera Y Marmol, Canteras Acabados Finos warrants and represents to Placer
that it is a corporation, duly incorporated under the laws of Mexico with full
power and absolute capacity to enter into this Agreement and that the terms of
this Agreement have been authorized by all necessary corporate acts and deeds in
order to give effect to the terms hereof.

3.2 Cantera Y Marmol, Canteras Acabados Finos is in compliance with all
governing laws and rules pertaining to business activities and mining activities
pursuant to the laws of Mexico as of the Effective Date of this Agreement.

4. GRANT OF MINERAL EXTRACTION RIGHTS

4.1 As of the date of this Agreement, Placer hereby gives and grants to Cantera
Y Marmol, Canteras Acabados Finos, as its Nominee, the sole and exclusive right
to extract only the mineral Mexican Shellstone-Limestone ("Conchuela"), located
on the Property by performing the acts and deeds and paying the sums provided
for in paragraph 5. Payments to Placer for the extraction of Conchuela to
commence no later than December 31, 2010 for the exclusive right to begin
extracting only Conchuela from the Property commencing December 8, 2010, with a
minimum monthly payment of $8,000.

4.2 The term of this Mineral Extraction Rights Agreement shall be for a period
of five years from the signing date of this agreement, renewable upon the
anniversary date of this agreement for an additional 25 year period at the sole
discretion of Placer for a one-time payment of $55,000.

5. CONSIDERATION FOR THE GRANT OF MINERAL EXTRACTION RIGHTS

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<PAGE>
5.1 In order to keep the Mineral Extraction Rights granted to Cantera Y Marmol,
Canteras Acabados Finos in good standing and in force and effect, Cantera Y
Marmol, Canteras Acabados Finos shall be obligated to the following:

     (a)  CONTRACT COMMENCEMENT AND PAYMENTS

          Cantera Y Marmol, Canteras Acabados Finos shall pay Placer $0.88 per
          square foot for all Conchuela extracted from the Property commencing
          with extraction activities beginning on December 8, 2010. The first
          section consists of one acre with a surface area of 43,560 square feet
          and is one of 46.2 acres included in this Agreement. Payments shall be
          calculated on the total number of square feet extracted each month
          from the Property and due and payable to Placer within thirty days.

     (b)  COMPLIANCE WITH ALL MINING AND BUSINESS LAWS AND RULES

          Cantera Y Marmol, Canteras Acabados Finos shall be in and remain in
          compliance with all governing laws and rules pertaining to business
          activities and mining activities pursuant to the laws of Mexico as of
          the Effective Date of this Agreement. to Roca Cantera Y Marmol,
          Canteras Acabados Finos shall be responsible for filing all mining
          claims required for the extraction of Conchuela minerals on the
          Property.

7. RIGHT TO ABANDON PROPERTY INTERESTS

Cantera Y Marmol, Canteras Acabados Finos, at its sole discretion, may abandon
all interests and cease mineral extraction work in the interests of the Property
at any time through written notice to Placer. Upon receipt of such notice,
Placer shall be entitled to full payment for all mineral extraction fees
outstanding within thirty days of such written notice.

8. TERMINATION OF AGREEMENT

8.1 This Agreement shall terminate upon 30 calendar days' written notice
provided by Placer to Cantera Y Marmol, Canteras Acabados Finos if Cantera Y
Marmol, Canteras Acabados Finos fails to make the required payments per
Paragraph 5. of this Agreement.

8.2 If Cantera Y Marmol, Canteras Acabados Finos shall be in default of any
requirement set forth in paragraph 5.1 herein, Placer shall give written notice
to Roca Cantera Y Marmol, Canteras Acabados Finos specifying the default and
Cantera Y Marmol, Canteras Acabados Finos shall not lose any rights granted
under this Agreement, unless within 30 days after the giving of notice of
default by Placer, Cantera Y Marmol, Canteras Acabados Finos has failed to take
reasonable steps to cure the default by the appropriate performance.

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<PAGE>
8.3 This Agreement shall terminate upon 30 calendar days' written notice
provided by Cantera Y Marmol, Canteras Acabados Finos to Placer, without cause.

10. RIGHT OF ENTRY

For so long as this Agreement continues in full force and effect, Cantera Y
Marmol, Canteras Acabados Finos, its employees, agents and independent
contractors shall have the sole and exclusive right and option to:

(a)  enter upon the Property;

(b)  have exclusive and quiet possession of the Property;

(c)  incur Expenditures;

(d)  bring upon and erect upon the Property such mineral extraction facilities
     as Cantera Y Marmol, Canteras Acabados Finos may consider advisable and
     necessary for its extraction operations; and

(e)  remove from the Property and sell or otherwise dispose of all Conchuela
     mineral products.

11. THIS AGREEMENT IS THE SOLE AGREEMENT BETWEEN THE PARTIES AND SUPERCEDES ANY
AND ALL PREVIOUS AGREEMENTS BETWEEN THE PARTIES.

11.1 By signing this Agreement, any and all previous oral and written agreements
between the parties shall be deemed to be unenforceable, null and void as of the
date of this Agreement.

SIGNED, SEALED, AND DELIVERED by Placer Del Mar in the presence of:

Signature /s/ Humberto Bravo                       (Humberto Bravo) Date 12/8/10
         -----------------------------                                   -------
Placer Del Mar, Ltd.
3707 Fifth Ave. # 351
San Diego, California

SIGNED, SEALED, AND DELIVERED by Roca Cantera Y Marmol Canteras Acabados Finos
in the presence of:

Signature /s/ Rodan Mezzo                           (Rodan Mezzo)   Date 12/8/10
         -----------------------------                                   -------
Roca Cantera Y Marmol
Canteras Acabados Finos
Margaritas No.48 Col. Jardines De Qro.
Los Arcos, BC. Mexico 22127

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