Filed Pursuant to Rule 433
Registration No.: 333-142343

Martin Marietta Materials, Inc.

Pricing Term Sheet for Fixed Rate Senior Notes

$250,000,000

April 25, 2007

Issuer:		Martin Marietta Materials, Inc.
Principal Amount:		$250,000,000
Security Type:		Fixed Rate Senior Note
Maturity:		May 1, 2037
Coupon:		6.250%
Price to Public:		99.986%
Yield to maturity:		6.251%
Spread to Benchmark Treasury:		1.40%; 140 bps
Benchmark Treasury:		4.500% due February 2036
Benchmark Treasury Spot and Yield:		94-18+ 4.851%
Interest Payment Dates:		May 1 and November 1, commencing November 1, 2007
Day Count Convention:		30/360
Denominations:		$2,000 x $1,000
Redemption Provisions:
Make-whole call:		At any time at the greater of 100% and the make whole amount (the present value of principal and the remaining interest discounted at the Treasury Rate plus 25 basis points)
Trade Date:		April 25, 2007
Settlement Date:		April 30, 2007 (T+3)
Net Proceeds Before Expenses:		$247,777,500
Anticipated Ratings:		Baa1/BBB+
Joint Book-Running Managers:		J.P. Morgan Securities Inc. Banc of America Securities LLC Citigroup Global Markets Inc.
Co-Managers:		Wachovia Capital Markets, LLC BB&T Capital Markets, a division of Scott & Stringfellow, Inc. Wells Fargo Securities, LLC

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