| 
           1. 
         | 
        
           NAMES OF REPORTING PERSONS 
        I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)  | 
      
| 
           Equinox Partners Investment Management LLC 
         | 
      |
| 
           2. 
         | 
        
           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 
         | 
      
| 
           (a)    [x] 
         | 
      |
| 
           (b)    [  ] 
         | 
      |
| 
           3. 
         | 
        
           SEC USE ONLY 
         | 
      
| 
           4. 
         | 
        
           CITIZENSHIP OR PLACE OF ORGANIZATION 
         | 
      
| 
           Delaware 
         | 
      |
| 
           NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH: 
         | 
      |
| 
           5. 
         | 
        
           SOLE VOTING POWER 
         | 
      
| 
           0 
         | 
      |
| 
           6. 
         | 
        
           SHARED VOTING POWER 
         | 
      
| 
           1,933,6371 
         | 
      |
| 
           7. 
         | 
        
           SOLE DISPOSITIVE POWER 
         | 
      
| 
           0 
         | 
      |
| 
           8. 
         | 
        
           SHARED DISPOSITIVE POWER 
         | 
      
| 
           1,933,6371 
         | 
      |
| 
           9. 
         | 
        
           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 
         | 
      
| 
           1,933,637 
         | 
      |
| 
           10. 
         | 
        
           CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) 
        EXCLUDES CERTAIN SHARES [ ]  | 
      
| 
           11. 
         | 
        
           PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 
         | 
      
| 
           6.3% 
         | 
      |
| 
           12. 
         | 
        
           TYPE OF REPORTING PERSON 
         | 
      
| 
           IA 
         | 
      |
| 
           1. 
         | 
        
           NAMES OF REPORTING PERSONS 
         | 
      
| 
           Equinox Partners, L.P. 
         | 
      |
| 
           2. 
         | 
        
           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 
         | 
      
| 
           (a)    [x] 
         | 
      |
| 
           (b)    [  ] 
         | 
      |
| 
           3. 
         | 
        
           SEC USE ONLY 
         | 
      
| 
           4. 
         | 
        
           CITIZENSHIP OR PLACE OF ORGANIZATION 
         | 
      
| 
           Delaware 
         | 
      |
| 
           NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH: 
         | 
      |
| 
           5. 
         | 
        
           SOLE VOTING POWER 
         | 
      
| 
           0 
         | 
      |
| 
           6. 
         | 
        
           SHARED VOTING POWER 
         | 
      
| 
           717,160 
         | 
      |
| 
           7. 
         | 
        
           SOLE DISPOSITIVE POWER 
         | 
      
| 
           0 
         | 
      |
| 
           8. 
         | 
        
           SHARED DISPOSITIVE POWER 
         | 
      
| 
           717,160 
         | 
      |
| 
           9. 
         | 
        
           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 
         | 
      
| 
           717,160 
         | 
      |
| 
           10. 
         | 
        
           CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) 
        EXCLUDES CERTAIN SHARES [ ]  | 
      
| 
           11. 
         | 
        
           PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 
         | 
      
| 
           2.3% 
         | 
      |
| 
           12. 
         | 
        
           TYPE OF REPORTING PERSON 
         | 
      
| 
           PN 
         | 
      |
| 
           1. 
         | 
        
           NAMES OF REPORTING PERSONS 
         | 
      
| 
           Kuroto Fund LP 
         | 
      |
| 
           2. 
         | 
        
           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 
         | 
      
| 
           (a)    [x] 
         | 
      |
| 
           (b)    [  ] 
         | 
      |
| 
           3. 
         | 
        
           SEC USE ONLY 
         | 
      
| 
           4. 
         | 
        
           CITIZENSHIP OR PLACE OF ORGANIZATION 
         | 
      
| 
           Delaware 
         | 
      |
| 
           NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH: 
         | 
      |
| 
           5. 
         | 
        
           SOLE VOTING POWER 
         | 
      
| 
           0 
         | 
      |
| 
           6. 
         | 
        
           SHARED VOTING POWER 
         | 
      
| 
           449,060 
         | 
      |
| 
           7. 
         | 
        
           SOLE DISPOSITIVE POWER 
         | 
      
| 
           0 
         | 
      |
| 
           8. 
         | 
        
           SHARED DISPOSITIVE POWER 
         | 
      
| 
           449,060 
         | 
      |
| 
           9. 
         | 
        
           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 
         | 
      
| 
           449,060 
         | 
      |
| 
           10. 
         | 
        
           CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) 
        EXCLUDES CERTAIN SHARES [ ]  | 
      
| 
           11. 
         | 
        
           PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 
         | 
      
| 
           1.5% 
         | 
      |
| 
           12. 
         | 
        
           TYPE OF REPORTING PERSON 
         | 
      
| 
           PN 
         | 
      |
| 
           1. 
         | 
        
           NAMES OF REPORTING PERSONS 
         | 
      
| 
           Mason Hill Partners, LP 
         | 
      |
| 
           2. 
         | 
        
           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 
         | 
      
| 
           (a)    [x] 
         | 
      |
| 
           (b)    [  ] 
         | 
      |
| 
           3. 
         | 
        
           SEC USE ONLY 
         | 
      
| 
           4. 
         | 
        
           CITIZENSHIP OR PLACE OF ORGANIZATION 
         | 
      
| 
           Delaware 
         | 
      |
| 
           NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH: 
         | 
      |
| 
           5. 
         | 
        
           SOLE VOTING POWER 
         | 
      
| 
           0 
         | 
      |
| 
           6. 
         | 
        
           SHARED VOTING POWER 
         | 
      
| 
           50,009 
         | 
      |
| 
           7. 
         | 
        
           SOLE DISPOSITIVE POWER 
         | 
      
| 
           0 
         | 
      |
| 
           8. 
         | 
        
           SHARED DISPOSITIVE POWER 
         | 
      
| 
           50,009 
         | 
      |
| 
           9. 
         | 
        
           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 
         | 
      
| 
           50,009 
         | 
      |
| 
           10. 
         | 
        
           CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) 
        EXCLUDES CERTAIN SHARES [ ]  | 
      
| 
           11. 
         | 
        
           PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 
         | 
      
| 
           0.2% 
         | 
      |
| 
           12. 
         | 
        
           TYPE OF REPORTING PERSON 
         | 
      
| 
           PN 
         | 
      |
| 
           1. 
         | 
        
           NAMES OF REPORTING PERSONS 
         | 
      
| 
           Sean M. Fieler 
         | 
      |
| 
           2. 
         | 
        
           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 
         | 
      
| 
           (a)    [x] 
         | 
      |
| 
           (b)    [  ] 
         | 
      |
| 
           3. 
         | 
        
           SEC USE ONLY 
         | 
      
| 
           4. 
         | 
        
           CITIZENSHIP OR PLACE OF ORGANIZATION 
         | 
      
| 
           United States 
         | 
      |
| 
           NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH: 
         | 
      |
| 
           5. 
         | 
        
           SOLE VOTING POWER 
         | 
      
| 
           0 
         | 
      |
| 
           6. 
         | 
        
           SHARED VOTING POWER 
         | 
      
| 
           1,933,6372 
         | 
      |
| 
           7. 
         | 
        
           SOLE DISPOSITIVE POWER 
         | 
      
| 
           0 
         | 
      |
| 
           8. 
         | 
        
           SHARED DISPOSITIVE POWER 
         | 
      
| 
           1,933,6372 
         | 
      |
| 
           9. 
         | 
        
           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 
         | 
      
| 
           1,933,6372 
         | 
      |
| 
           10. 
         | 
        
           CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) 
        EXCLUDES CERTAIN SHARES [ ]  | 
      
| 
           11. 
         | 
        
           PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 
         | 
      
| 
           6.3% 
         | 
      |
| 
           12. 
         | 
        
           TYPE OF REPORTING PERSON 
         | 
      
| 
           IN 
         | 
      |
| Item 1(a). | 
           Name of Issuer: 
         | 
      
| Item 1(b). | 
           Address of Issuer’s Principal Executive Offices: 
         | 
      
| Item 2(a). | 
           Name of Persons Filing: 
         | 
      
| 
             • 
           | 
          
             Equinox Partners Investment Management LLC, a Delaware limited liability company (“EPIM”). 
           | 
        
| 
             • 
           | 
          
             Equinox Partners, L.P., a Delaware limited partnership (“Equinox Partners”). 
           | 
        
| 
             • 
           | 
          
             Kuroto Fund LP, a Delaware limited partnership (“Kuroto”). 
           | 
        
| 
             • 
           | 
          
             Mason Hill Partners, LP, a Delaware limited partnership (“Mason Hill Partners”). 
           | 
        
| 
             • 
           | 
          
             Sean M. Fieler, a United States Citizen (“Mr. Fieler”). 
           | 
        
| Item 2(b). | 
           Address of Principal Business Office or, if None, Residence: 
         | 
      
| Item 2(c). | 
           Citizenship: 
         | 
      
| Item 2(d). | 
           Title of Class of Securities: 
         | 
      
| Item 2(e). | 
           CUSIP Number: 
         | 
      
| Item 3. | 
           If This Statement is Filed Pursuant to Rule 13d 1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a: 
         | 
      
| 
           (a) 
         | 
        
           [ ] 
         | 
        
           Broker or dealer registered under Section 15 of the Exchange Act. 
         | 
      |
| 
           (b) 
         | 
        
           [ ] 
         | 
        
           Bank as defined in Section 3(a)(6) of the Exchange Act. 
         | 
      |
| 
           (c) 
         | 
        
           [ ] 
         | 
        
           Insurance company defined in Section 3(a)(19) of the Exchange Act. 
         | 
      |
| 
           (d) 
         | 
        
           [ ] 
         | 
        
           Investment company registered under Section 8 of the Investment Company Act. 
         | 
      |
| 
           (e) 
         | 
        
           [ ] 
         | 
        
           Investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E). 
         | 
      |
| 
           (f) 
         | 
        
           [ ] 
         | 
        
           Employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F). 
         | 
      |
| 
           (g) 
         | 
        
           [ ] 
         | 
        
           Parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G). 
         | 
      |
| 
           (h) 
         | 
        
           [ ] 
         | 
        
           Savings association as defined in Section 3(b) of the Federal Deposit Insurance Act. 
         | 
      |
| 
           (i) 
         | 
        
           [ ] 
         | 
        
           Church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act; 
         | 
      |
| 
           (j) 
         | 
        
           [ ] 
         | 
        
           Non-U.S. institution in accordance with Section 240.13d-1(b)(1)(ii)(J). 
         | 
      |
| 
           (k) 
         | 
        
           [ ] 
         | 
        
           Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).  If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: ____ 
         | 
      
| Item 4. | 
           Ownership. 
         | 
      
| (a) | 
           Amount beneficially owned: 
         | 
      
| 
             (i) 
           | 
          
             EPIM beneficially owns 1,933,637 Common Shares. 
           | 
        
| 
             (ii) 
           | 
          
             Equinox Partners beneficially owns 717,160 Common Shares. 
           | 
        
| 
             (iii) 
           | 
          
             Kuroto beneficially owns 449,060 Common Shares. 
           | 
        
| 
             (iv) 
           | 
          
             Mason Hill Partners beneficially owns 50,009 Common Shares. 
           | 
        
| 
             (v) 
           | 
          
             Mr. Fieler beneficially owns 1,933,637 Common Shares. 
           | 
        
| 
             (vi) 
           | 
          
             Collectively, the Reporting Persons beneficially own 1,933,637 Common Shares. 
           | 
        
| 
             (i) 
           | 
          
             EPIM’s beneficial ownership of 1,933,637 Common Shares represents approximately 6.3% of the outstanding Common Shares. 
           | 
        
| 
             (ii) 
           | 
          
             Equinox Partners’ beneficial ownership of 717,160 Common Shares represents approximately 2.3% of the outstanding Common Shares. 
           | 
        
| 
             (iii) 
           | 
          
             Kuroto’s beneficial ownership of 449,060 Common Share represents approximately 1.5% of the outstanding Common Shares. 
           | 
        
| 
             (iv) 
           | 
          
             Mason Hill Partners’ beneficial ownership of 50,009 Common Shares represents approximately 0.2% of the outstanding Common Shares. 
           | 
        
| 
             (v) 
           | 
          
             Mr. Fieler’s beneficial ownership of 1,933,637 Common Shares represents approximately 6.3% of the outstanding Common Shares. 
           | 
        
| 
             (vi) 
           | 
          
             Collectively, the Reporting Persons’ beneficial ownership of 1,933,637 Common Shares represents approximately 6.3% of the outstanding Common Shares. 
           | 
        
| (c) | 
           Number of shares as to which such person has: 
         | 
      
| (i) | 
           Sole power to vote or to direct the vote of Common Shares: 
         | 
      
| (ii) | 
           Shared power to vote or to direct the vote of Common Shares: 
         | 
      
| (iii) | 
           Sole power to dispose or to direct the disposition of Common Shares: 
         | 
      
| (iv) | 
           Shared power to dispose or to direct the disposition of Common Shares: 
         | 
      
| Item 5. | 
           Ownership of Five Percent or Less of a Class. 
         | 
      
| Item 6. | 
           Ownership of More than Five Percent on Behalf of Another Person. 
         | 
      
| Item 7. | 
           Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company. 
         | 
      
| Item 8. | 
           Identification and Classification of Members of the Group. 
         | 
      
| Item 9. | 
           Notice of Dissolution of Group. 
         | 
      
| Item 10. | 
           Certification. 
         | 
      
| 
           EQUINOX PARTNERS INVESTMENT MANAGEMENT LLC 
         | 
      |||
| 
           By: 
         | 
        
           /s/ Sean M. Fieler 
           | 
      ||
| 
           Name: 
         | 
        
           Sean M. Fieler 
         | 
      ||
| 
           Title: 
         | 
        
           Manager 
         | 
      ||
| 
           EQUINOX PARTNERS, L.P. 
          By: Equinox Partners Investment Management LLC, its investment manager 
         | 
      |||
| 
           By: 
         | 
        
           /s/ Sean M. Fieler 
           | 
      ||
| 
           Name: 
         | 
        
           Sean M. Fieler 
         | 
      ||
| 
           Title: 
         | 
        
           Manager 
         | 
      ||
| 
           KUROTO FUND LP 
          By: Equinox Partners Investment Management LLC, its investment manager 
         | 
      |||
| 
           By: 
         | 
        
           /s/ Sean M. Fieler 
           | 
      ||
| 
           Name: 
         | 
        
           Sean M. Fieler 
         | 
      ||
| 
           Title: 
         | 
        
           Manager 
         | 
      ||
| 
           MASON HILL PARTNERS, LP 
          By: Equinox Partners Investment Management LLC, its investment manager 
         | 
      |||
| 
           By: 
         | 
        
           /s/ Sean M. Fieler 
           | 
      ||
| 
           Name: 
         | 
        
           Sean M. Fieler 
         | 
      ||
| 
           Title: 
         | 
        
           Manager 
         | 
      ||
| 
           /s/ Sean M. Fieler 
           | 
      |
| 
           SEAN M. FIELER 
         | 
      
| 
           EQUINOX PARTNERS INVESTMENT MANAGEMENT LLC 
         | 
      ||
| 
           By: 
         | 
        
           /s/ Sean M. Fieler 
           | 
      |
| 
           Name: 
         | 
        
           Sean M. Fieler 
         | 
      |
| 
           Title: 
         | 
        
           Manager 
         | 
      |
| 
           EQUINOX PARTNERS, L.P. 
          By: Equinox Partners Investment Management LLC, its investment manager 
         | 
      ||
| 
           By: 
         | 
        
           /s/ Sean M. Fieler 
           | 
      |
| 
           Name: 
         | 
        
           Sean M. Fieler 
         | 
      |
| 
           Title: 
         | 
        
           Manager 
         | 
      |
| 
           KUROTO FUND LP 
          By: Equinox Partners Investment Management LLC, its investment manager 
         | 
      ||
| 
           By: 
         | 
        
           /s/ Sean M. Fieler 
           | 
      |
| 
           Name: 
         | 
        
           Sean M. Fieler 
         | 
      |
| 
           Title: 
         | 
        
           Manager 
         | 
      |
| 
           MASON HILL PARTNERS, LP 
          By: Equinox Partners Investment Management LLC, its investment manager 
         | 
      ||
| 
           By: 
         | 
        
           /s/ Sean M. Fieler 
           | 
      |
| 
           Name: 
         | 
        
           Sean M. Fieler 
         | 
      |
| 
           Title: 
         | 
        
           Manager 
         | 
      |
| 
             /s/ Sean M. Fieler 
             | 
        |
| 
             SEAN M. FIELER 
           |