EX-99.(B) 8 d04441exv99wxby.txt SECTION 906 CERTIFICATION EXHIBIT 99(b) SECTION 906 CERTIFICATION BY THE CHIEF FINANCIAL OFFICER I, M. Michael Owens, Chief Financial Officer of United States Lime & Minerals, Inc. (the "Company"), hereby certify that to my knowledge: (3) The Company's periodic report on Form 10-K for the year ended December 31, 2002 (the "Form 10-K") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and (1) The information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of the Company. Dated: March 27, 2003 /s/ M. Michael Owens -------------------- M. Michael Owens