EXHIBIT D STOCK PURCHASE AND LOAN OPTION AGREEMENT INVESTOR RIGHTS AND STOCKHOLDER AGREEMENTInvestor Rights and Stockholder Agreement • June 20th, 2005 • Mr3 Systems Inc • Miscellaneous primary metal products • California
Contract Type FiledJune 20th, 2005 Company Industry JurisdictionThis Investor Rights and Stockholder Agreement (together with the Exhibits hereto, the “Agreement”), dated as of May 30, 2005, is entered into among MR3 Systems, Inc., a Delaware corporation (the “Company”), the persons listed on Exhibit A-1 attached hereto (collectively, the “Management Shareholders”), and MRD Holdings Inc., a corporation organized and existing under the laws of the State of Delaware (the “Investor”).