Jane P. Faulkenberry Senior Vice President 918-588-6272 FAX: 918-280-3368 Jfaulkenberry@bokf.com December 31, 2007 Ms. Debra Roe Chief Financial Officer The Monarch Cement Company 449 1200 Street Humboldt, KS 66748Monarch Cement Co • March 14th, 2008 • Concrete, gypsum & plaster products
RE: Sixth Amendment to Agreement dated January 1, 2001 between The Monarch Cement Company ("Borrower") and Bank of Oklahoma, N.A. ("Lender") in the aggregate amount of $35,000,000 (the "Loan Agreement"), as amended by First Amendment dated December 31, 2002, Second Amendment dated December 31, 2003, Third Amendment dated December 31, 2004, Fourth Amendment dated January 1, 2006 and Fifth Amendment dated December 31, 2006.
