Exhibit 10.4 RAW MATERIAL REQUIREMENTS AGREEMENT THIS AGREEMENT made as of June 1st, 2003, between C-E Minerals Inc., a corporation organized and existing under the laws of the state of Delaware and having an office at 901 East Eighth Avenue, King of...Raw Material Requirements Agreement • March 3rd, 2004 • Carbo Ceramics Inc • Abrasive, asbestos & misc nonmetallic mineral prods • Alabama
