Martin Marietta Materials : MLM Q1 2021 Supplemental Information

Q1 2021

SUPPLEMENTAL INFORMATION*

MAY 4, 2021

• All information provided in these slides is qualified in its entirety by reference to the Company's filings with the
  Securities and Exchange Commission (SEC), which are available on both the Company's and the SEC's websites.

Statement Regarding Safe Harbor for Forward-Looking Statements

This presentation may contain forward-looking statements - that is, information

related to future, not past, events. Like other businesses, Martin Marietta (the Company) is subject to risks and uncertainties which could cause its actual results to differ materially from its projections or that could cause forward-looking statements to prove incorrect, including the risks and uncertainties discussed in Martin Marietta's most recent Annual Report on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, which have been filed with the Securities and Exchange Commission (SEC) and are readily accessible on the SEC's website and the Company's website. Except as legally required, Martin Marietta undertakes no obligation to publicly update or revise any forward-looking statements, whether resulting from new information, future developments or otherwise.

Non-GAAP Financial Measures

This presentation contains certain financial measures presented on a non-GAAP basis which are defined in the Appendix. These non-GAAP financial measures are not in accordance with, nor are they a substitute for, GAAP measures. Reconciliations of non-GAAP financial measures to the most directly comparable GAAP financial measures are provided in the Appendix. Management believes these non-GAAP measures are commonly used financial measures for investors to evaluate the Company's operating performance, and when read in conjunction with the Company's consolidated financial statements, present a useful tool to evaluate the Company's ongoing operations, performance from period to period and anticipated performance. In addition, these are some of the factors the Company used in internal evaluation of the overall performance of its businesses. Management acknowledges there are many items that impact a company's reported results and the adjustments reflected in these non-GAAP measures are not intended to present all items that may have impacted these results. In addition, these non-GAAP measures are not necessarily comparable to similarly titled measures used by other companies.

Q1 2021 Supplemental Information

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Q1 2021 REVIEW

FIRST-QUARTER RESULTS

PRODUCTS & SERVICES REVENUES

	$922M
$891M
2020	2021

ADJUSTED EBITDA*

	$204M
$149M
2020	2021

*Adjusted EBITDA is a non-GAAP financial measure. See slide 14 for reconciliation to nearest GAAP measure.

GROSS PROFIT

	$175M
$142M
2020	2021

EARNINGS PER DILUTED SHARE

$1.04

$0.41

20202021

• Established first-quarter records for consolidated revenues, gross profit, Adjusted EBITDA and earnings per diluted share
• Building Materials and Magnesia Specialties businesses experienced strengthening product demand
• Aggregates and cement pricing gains achieved
• Aggregates unit profitability improved 34 percent
• Cement business delivered solid operating performance and shipment growth, despite disruptions from Texas's record "Deep Freeze" in
  February
• Adjusted EBITDA increased 37 percent

Note: First-quarter results and trends described in this Supplemental Information may not necessarily be indicative of the Company's future performance.

Q1 2021 Supplemental Information

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(see slide 15 for reconciliation)

AGGREGATES PERFORMANCE

SHIPMENTS (TONS)	AVERAGE SELLING PRICE (ASP)

	-3%
38.3M	•
	37.1M
	•
	•
2020	2021

Broad-based improvement in product demand

Strong shipment levels on days not impacted by harsh winter weather

By group:

• East Group: +0.2%
• West Group: - 8%

	+3.4%
	$15.31	•
$14.80
		•
		•
2020	2021

Pricing increased 2.5 percent on a mix-adjusted basis

Sustainable pricing growth supported by disciplined execution of locally-driven pricing strategy and attractive underlying market fundamentals

By group:

• East Group: +4%
• West Group: +2%

Q1 2021 Supplemental Information

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