EXHIBIT 4.28 PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT FILED WITH THE SECURITIES AND EXCHANGE COMMISSION. THE OMISSIONS HAVE BEEN INDICATED BY ("***"), AND EACH PAGE CONTAINING CONFIDENTIAL INFORMATION...Agreement for the Extraction and Sale of Silica • July 6th, 2007 • Hardie James Industries Nv • Concrete products, except block & brick • California
Contract Type FiledJuly 6th, 2007 Company Industry Jurisdiction
AGREEMENT BETWEEN RIVERSIDE AND VIM FOR THE EXTRACTION AND SALE OF SILICAAgreement for the Extraction and Sale of Silica • September 18th, 2007 • Hardie James Industries Nv • Concrete products, except block & brick • California
Contract Type FiledSeptember 18th, 2007 Company Industry JurisdictionThis Agreement dated this 1st day of November, 2002, for a term of five (5) years, by and between VICTORVILLE INDUSTRIAL MINERALS, INC., (hereafter designated as “VIM”) whose mailing address is P.O. Box 278, Oro Grande, California, 92368 and RIVERSIDE CEMENT COMPANY, P.O. Box 158, Oro Grande, California, 92368, (hereafter designated as the “Riverside”).