exhibit 10. 1 “ version en ingles ” mining and production services agreement this agreement is made and entered on this the 15th day of april, 2005. among : dynaresource de mexico, s. a. de c. v. herein represented by mr. koy wilber diepholz, acting in his capacity of president of its board of directors holding general powers of attorney for legal representation and collections, acts of administration and domain ( hereinafter referred to as the “ company ” ), of the first part, and mineras de dynaresource, s. a. de c. v., herein represented by mr. koy wilber diepholz, acting in his capacity of president of its board of directors holding general powers of attorney for legal representation and collections, acts of administration and domain ( hereinafter referred to as the “ mining and production services contractor ” / “ contractor ” ) ; of the second part. whereas : a ) the company is a limited liability company ( s. a. de c. v. ) validly subsisting and duly incorporated pursuant to the laws of the united mexican states, having its business and affairs the exploration and exploitation of minerals within the territory of mexico, a ) the company is a limited liability company ( s. a. de c. v. ) validly subsisting and duly incorporated pursuant to the laws of the united mexican states, having its business and affairs the exploration and exploitation of minerals within the territory of mexico, a ) the company is a limited liability company ( s. a. de c. v. ) validly subsisting and duly incorporated pursuant to the laws of the united mexican states, having its business and affairs the exploration and exploitation of minerals within the territory of mexico, b ) the company is the legal and beneficial recorded owner of all of the mining concessions comprised in the san jose de gracia project, located in the township of san jose de gracia, municipality of sinaloa de leyva, sinaloa ( the “ san jose de gracia project ), b ) the company is the legal and beneficial recorded owner of all of the mining concessions comprised in the san jose de gracia project, located in the township of san jose de gracia, municipality of sinaloa de leyva, sinaloa ( the “ san jose de gracia project ), b ) the