exhibit 10. 4 auscrete corporation sales agreement this sales agreement ( the “ agreement ” ) dated this 21st day of may, 2010 between : name ( s. ) auscrete corporation. address po box 847, 504 e. first street rufus or. 97050. telephone, fax etc. # # # - # # # - # # # # fax # # # - # # # - # # # #. of the first part - and - name ( s. ) wendell r and linda johnson. address 228 byars street, goldendale wa98620. telephone, fax etc. # # # - # # # - # # # #. of the second part in consideration of the covenants and agreements, contained in this sales agreement, the parties to this agreement agree as follows : sale of goods 1. the seller will sell, transfer and deliver to the purchaser on or before the date herein mentioned the goods ( “ the goods ” ) : the goods ; the goods consist of the house outlined in the attached invoice ( schedule “ a ” ) purchase price 2. the purchaser will accept the goods and pay for the goods with the sum of one hundred and eighty six thousand ( $ 186, 000. 00 ) us dollars, paid as follows : as per the payment schedule outlined in schedule “ a ” attached hereto. continued page 2 sales agreement page 2 auscrete corporation 3. the seller and the purchaser both acknowledge the sufficiency of this consideration. in addition to the purchase price specified in this agreement, the amount of any present or future sales, use, excise or similar tax applicable to the sale of the goods will be paid by the purchaser, or alternatively, the purchaser will supply the seller with a tax exemption certificate acceptable to the applicable taxing authorities. 4. payment of the goods will be made to the seller when the purchaser is notified that the goods have been delivered by the seller to a carrier for shipment to the purchaser, or in the alternative, when the document of title or registered bill of sale, bearing any necessary endorsement, is tendered to the purchaser. delivery of goods 5. the goods will be deemed received by the purchaser when delivered to the purchaser at the delivery address herein provided. the method of shipment will be within the discretion of the purchaser, unless the cost of delivery be included in the purchase price, however,