Exhibit 99.1
Joint Filing Agreement
The undersigned agree that the foregoing Statement on Schedule 13D/A, dated September 20, 2012, is being filed with the Securities and Exchange Commission on behalf of each of the undersigned pursuant to Rule 13d-1(k).
Dated: September 20, 2012
| | AFINSA BIENES TANGIBLES S.A. EN LIQUIDACION |
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| | By: | /s/ Javier Díaz-Gálvez de la Cámara |
| | Name: | Javier Díaz-Gálvez de la Cámara |
| | Title: | Trustee |
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| | By: | /s/ Benito Agüera Marín |
| | Name: | Benito Agüera Marín |
| | Title: | Trustee |
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| | By: | /s/ Carmen Salvador Calvo |
| | Name: | Carmen Salvador Calvo |
| | In representation of Tesoreria General del la Seguridad Social |
| | Title: | Trustee |
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| | AUCTENTIA, S.L. |
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| | By: | /s/ Javier Díaz-Gálvez de la Cámara |
| | Name: | Javier Díaz-Gálvez de la Cámara |
| | Title: | Joint Administrator |
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| | By: | /s/ Benito Agüera Marín |
| | Name: | Benito Agüera Marín |
| | Title: | Joint Administrator |
