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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

☒ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2021

OR

☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number 1-12744

MARTIN MARIETTA MATERIALS, INC.

(Exact name of registrant as specified in its charter)

North Carolina |  | 56-1848578 |
(State or other jurisdiction of incorporation or organization) |  | (I.R.S. Employer Identification Number)

4123 Parklake Avenue, Raleigh, NC |  | 27612 |
(Address of principal executive offices) |  | (Zip Code)

Registrant’s telephone number, including area code: 919-781-4550

(Former name, former address and former fiscal year, if changes since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class | Trading Symbol(s) | Name of each exchange on which registered
Common Stock (Par Value $0.01) | MLM | NYSE |

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer |  | ☑ |  | Accelerated filer |  | ☐
Non-accelerated filer |  | ☐ |  | Smaller reporting company |  | ☐ |
Emerging growth company |  | ☐ |  |  |  |  |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Securities Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐ No ☑

Indicate the number of shares outstanding of each of the issuer’s classes of Common Stock, as of the latest practicable date.

Class |  | Outstanding as of October 28, 2021
Common Stock, $0.01 par value |  | 62,381,891

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

| Page
Part I. Financial Information: |  |
Item 1. Financial Statements |  |
Consolidated Balance Sheets – September 30, 2021 and December 31, 2020 |  | 3
Consolidated Statements of Earnings and Comprehensive Earnings – Three and Nine Months Ended September 30, 2021 and 2020 |  | 4
Consolidated Statements of Cash Flows – Nine Months Ended September 30, 2021 and 2020 |  | 5
Consolidated Statement of Total Equity – Three and Nine Months Ended September 30, 2021 and 2020 |  | 6
Notes to Consolidated Financial Statements |  | 8
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations |  | 28
Item 3. Quantitative and Qualitative Disclosures About Market Risk |  | 50
Item 4. Controls and Procedures |  | 51
Part II. Other Information: |  |
Item 1. Legal Proceedings |  | 52
Item 1A. Risk Factors |  | 52
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds |  | 52
Item 4. Mine Safety Disclosures |  | 52
Item 6. Exhibits |  | 53
Signatures |  | 54

Page 2 of 54

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements.

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

(UNAUDITED) CONSOLIDATED BALANCE SHEETS

|  | September 30, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions, Except Par Value Data) |
ASSETS |  |  |  |  |  |  |  |
Current Assets: |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 2,381.4 |  |  | $ | 207.3 |
Restricted cash |  |  | 1.7 |  |  |  | 97.1 |
Accounts receivable, net |  |  | 801.9 |  |  |  | 575.1 |
Inventories, net |  |  | 717.5 |  |  |  | 709.0 |
Other current assets |  |  | 98.2 |  |  |  | 79.8 |
Total Current Assets |  |  | 4,000.7 |  |  |  | 1,668.3 |
Property, plant and equipment |  |  | 9,536.9 |  |  |  | 8,955.0 |
Allowances for depreciation, depletion and amortization |  |  | (3,926.4 | ) |  |  | (3,712.7 | )
Net property, plant and equipment |  |  | 5,610.5 |  |  |  | 5,242.3 |
Goodwill |  |  | 2,610.6 |  |  |  | 2,414.0 |
Other intangibles, net |  |  | 787.2 |  |  |  | 508.0 |
Operating lease right-of-use assets, net |  |  | 417.8 |  |  |  | 453.0 |
Other noncurrent assets |  |  | 359.4 |  |  |  | 295.2 |
Total Assets |  | $ | 13,786.2 |  |  | $ | 10,580.8 |
LIABILITIES AND EQUITY |  |  |  |  |  |  |  |
Current Liabilities: |  |  |  |  |  |  |  |
Accounts payable |  | $ | 249.3 |  |  | $ | 207.8 |
Accrued salaries, benefits and payroll taxes |  |  | 65.5 |  |  |  | 82.6 |
Accrued other taxes |  |  | 59.4 |  |  |  | 45.4 |
Current maturities of long-term debt and short-term facilities |  |  | 20.1 |  |  |  | — |
Accrued interest |  |  | 46.1 |  |  |  | 18.3 |
Operating lease liabilities |  |  | 47.3 |  |  |  | 48.6 |
Other current liabilities |  |  | 113.5 |  |  |  | 96.6 |
Total Current Liabilities |  |  | 601.2 |  |  |  | 499.3 |
Long-term debt |  |  | 5,099.4 |  |  |  | 2,625.8 |
Deferred income taxes, net |  |  | 809.3 |  |  |  | 781.5 |
Noncurrent operating lease liabilities |  |  | 375.9 |  |  |  | 410.4 |
Other noncurrent liabilities |  |  | 542.2 |  |  |  | 370.5 |
Total Liabilities |  |  | 7,428.0 |  |  |  | 4,687.5 |
Equity: |  |  |  |  |  |  |  |
Common stock, par value $0.01 per share (62.4 and 62.3 shares outstanding at September 30, 2021 and December 31, 2020, respectively) |  |  | 0.6 |  |  |  | 0.6 |
Preferred stock, par value $0.01 per share |  |  | — |  |  |  | — |
Additional paid-in capital |  |  | 3,463.3 |  |  |  | 3,440.8 |
Accumulated other comprehensive loss |  |  | (151.4 | ) |  |  | (158.4 | )
Retained earnings |  |  | 3,043.4 |  |  |  | 2,607.7 |
Total Shareholders' Equity |  |  | 6,355.9 |  |  |  | 5,890.7 |
Noncontrolling interests |  |  | 2.3 |  |  |  | 2.6 |
Total Equity |  |  | 6,358.2 |  |  |  | 5,893.3 |
Total Liabilities and Equity |  | $ | 13,786.2 |  |  | $ | 10,580.8 |

See accompanying notes to the consolidated financial statements.

Page 3 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

(UNAUDITED) CONSOLIDATED STATEMENTS OF EARNINGS AND COMPREHENSIVE EARNINGS

|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (In Millions, Except Per Share Data) |
Products and services revenues |  | $ | 1,462.7 |  |  | $ | 1,240.7 |  |  | $ | 3,679.9 |  |  | $ | 3,321.2 |
Freight revenues |  |  | 94.6 |  |  |  | 80.7 |  |  |  | 237.7 |  |  |  | 229.1 |
Total Revenues |  |  | 1,557.3 |  |  |  | 1,321.4 |  |  |  | 3,917.6 |  |  |  | 3,550.3 |
Cost of revenues - products and services |  |  | 1,021.0 |  |  |  | 836.1 |  |  |  | 2,676.9 |  |  |  | 2,390.9 |
Cost of revenues - freight |  |  | 94.4 |  |  |  | 80.8 |  |  |  | 239.0 |  |  |  | 232.0 |
Total Cost of Revenues |  |  | 1,115.4 |  |  |  | 916.9 |  |  |  | 2,915.9 |  |  |  | 2,622.9 |
Gross Profit |  |  | 441.9 |  |  |  | 404.5 |  |  |  | 1,001.7 |  |  |  | 927.4 |
Selling, general & administrative expenses |  |  | 86.0 |  |  |  | 71.1 |  |  |  | 248.2 |  |  |  | 221.0 |
Acquisition-related expenses |  |  | 7.4 |  |  |  | 0.4 |  |  |  | 18.0 |  |  |  | 1.2 |
Other operating income, net |  |  | (8.4 | ) |  |  | (67.6 | ) |  |  | (28.2 | ) |  |  | (59.6 | )
Earnings from Operations |  |  | 356.9 |  |  |  | 400.6 |  |  |  | 763.7 |  |  |  | 764.8 |
Interest expense |  |  | 44.3 |  |  |  | 28.7 |  |  |  | 99.9 |  |  |  | 89.7 |
Other nonoperating income, net |  |  | (5.6 | ) |  |  | (4.0 | ) |  |  | (23.8 | ) |  |  | (5.9 | )
Earnings before income tax expense |  |  | 318.2 |  |  |  | 375.9 |  |  |  | 687.6 |  |  |  | 681.0 |
Income tax expense |  |  | 63.6 |  |  |  | 81.5 |  |  |  | 141.7 |  |  |  | 143.0 |
Consolidated net earnings |  |  | 254.6 |  |  |  | 294.4 |  |  |  | 545.9 |  |  |  | 538.0 |
Less: Net earnings attributable to noncontrolling interests |  |  | — |  |  |  | — |  |  |  | 0.2 |  |  |  | — |
Net Earnings Attributable to Martin Marietta Materials, Inc. |  | $ | 254.6 |  |  | $ | 294.4 |  |  | $ | 545.7 |  |  | $ | 538.0 |
Consolidated Comprehensive Earnings: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings attributable to Martin Marietta Materials, Inc. |  | $ | 256.2 |  |  | $ | 298.0 |  |  | $ | 552.7 |  |  | $ | 545.2 |
Earnings attributable to noncontrolling interests |  |  | — |  |  |  | — |  |  |  | 0.2 |  |  |  | — |
|  | $ | 256.2 |  |  | $ | 298.0 |  |  | $ | 552.9 |  |  | $ | 545.2 |
Net Earnings Attributable to Martin Marietta Materials, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Per Common Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic attributable to common shareholders |  | $ | 4.08 |  |  | $ | 4.72 |  |  | $ | 8.74 |  |  | $ | 8.63 |
Diluted attributable to common shareholders |  | $ | 4.07 |  |  | $ | 4.71 |  |  | $ | 8.72 |  |  | $ | 8.61 |
Weighted-Average Common Shares Outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 62.4 |  |  |  | 62.3 |  |  |  | 62.4 |  |  |  | 62.3 |
Diluted |  |  | 62.6 |  |  |  | 62.4 |  |  |  | 62.6 |  |  |  | 62.4 |

See accompanying notes to the consolidated financial statements.

Page 4 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

(UNAUDITED) CONSOLIDATED STATEMENTS OF CASH FLOWS

|  | Nine Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Cash Flows from Operating Activities: |  |  |  |  |  |  |  |
Consolidated net earnings |  | $ | 545.9 |  |  | $ | 538.0 |
Adjustments to reconcile consolidated net earnings to net cash provided by operating activities: |  |  |  |  |  |  |  |
Depreciation, depletion and amortization |  |  | 320.0 |  |  |  | 292.2 |
Stock-based compensation expense |  |  | 33.0 |  |  |  | 22.4 |
Gain on divestitures and sales of assets |  |  | (26.6 | ) |  |  | (71.2 | )
Deferred income taxes |  |  | 25.7 |  |  |  | 24.8 |
Other items, net |  |  | (8.3 | ) |  |  | 0.8 |
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures: |  |  |  |  |  |  |  |
Accounts receivable, net |  |  | (218.0 | ) |  |  | (104.5 | )
Inventories, net |  |  | 65.1 |  |  |  | (22.6 | )
Accounts payable |  |  | 66.9 |  |  |  | (0.8 | )
Other assets and liabilities, net |  |  | (23.4 | ) |  |  | 4.9 |
Net Cash Provided by Operating Activities |  |  | 780.3 |  |  |  | 684.0 |
Cash Flows from Investing Activities: |  |  |  |  |  |  |  |
Additions to property, plant and equipment |  |  | (321.3 | ) |  |  | (250.8 | )
Acquisitions, net of cash acquired |  |  | (792.9 | ) |  |  | (64.0 | )
Proceeds from divestitures and sales of assets |  |  | 41.4 |  |  |  | 141.2 |
Investments in life insurance contracts, net |  |  | 13.9 |  |  |  | (12.7 | )
Other investing activities, net |  |  | — |  |  |  | (5.4 | )
Net Cash Used for Investing Activities |  |  | (1,058.9 | ) |  |  | (191.7 | )
Cash Flows from Financing Activities: |  |  |  |  |  |  |  |
Borrowings of debt |  |  | 2,896.6 |  |  |  | 628.1 |
Repayments of debt |  |  | (400.0 | ) |  |  | (777.0 | )
Payments on financing leases |  |  | (7.6 | ) |  |  | (2.3 | )
Debt issuance costs |  |  | (6.1 | ) |  |  | (2.0 | )
Distributions to owners of noncontrolling interest |  |  | (0.5 | ) |  |  | — |
Repurchases of common stock |  |  | — |  |  |  | (50.0 | )
Dividends paid |  |  | (109.7 | ) |  |  | (104.8 | )
Proceeds from exercise of stock options |  |  | 1.1 |  |  |  | 1.4 |
Shares withheld for employees' income tax obligations |  |  | (16.5 | ) |  |  | (13.0 | )
Net Cash Provided by (Used for) Financing Activities |  |  | 2,357.3 |  |  |  | (319.6 | )
Net Increase in Cash, Cash Equivalents and Restricted Cash |  |  | 2,078.7 |  |  |  | 172.7 |
Cash, Cash Equivalents and Restricted Cash, beginning of period |  |  | 304.4 |  |  |  | 21.0 |
Cash, Cash Equivalents and Restricted Cash, end of period |  | $ | 2,383.1 |  |  | $ | 193.7 |

See accompanying notes to the consolidated financial statements.

Page 5 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

(UNAUDITED) CONSOLIDATED STATEMENTS OF TOTAL EQUITY

(In Millions, Except Per Share Data) |  | Shares of Common Stock |  |  | Common Stock |  |  | Additional Paid-in Capital |  |  | Accumulated Other Comprehensive Loss |  |  | Retained Earnings |  |  | Total Shareholders' Equity |  |  | Noncontrolling Interests |  |  | Total Equity |
Balance at June 30, 2021 |  |  | 62.4 |  |  | $ | 0.6 |  |  | $ | 3,451.1 |  |  | $ | (153.0 | ) |  | $ | 2,827.2 |  |  | $ | 6,125.9 |  |  | $ | 2.3 |  |  | $ | 6,128.2 |
Consolidated net earnings |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 254.6 |  |  |  | 254.6 |  |  |  | — |  |  |  | 254.6 |
Other comprehensive earnings, net of tax |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1.6 |  |  |  |  |  |  |  | 1.6 |  |  |  | — |  |  |  | 1.6 |
Dividends declared ($0.61 per share) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (38.4 | ) |  |  | (38.4 | ) |  |  | — |  |  |  | (38.4 | )
Issuances of common stock for stock award plans |  |  | — |  |  |  | — |  |  |  | 0.4 |  |  |  | — |  |  |  | — |  |  |  | 0.4 |  |  |  | — |  |  |  | 0.4 |
Shares withheld for employees' income tax obligations |  |  | — |  |  |  | — |  |  |  | (0.4 | ) |  |  | — |  |  |  | — |  |  |  | (0.4 | ) |  |  | — |  |  |  | (0.4 | )
Stock-based compensation expense |  |  | — |  |  |  | — |  |  |  | 12.2 |  |  |  | — |  |  |  | — |  |  |  | 12.2 |  |  |  | — |  |  |  | 12.2 |
Balance at September 30, 2021 |  |  | 62.4 |  |  | $ | 0.6 |  |  | $ | 3,463.3 |  |  | $ | (151.4 | ) |  | $ | 3,043.4 |  |  | $ | 6,355.9 |  |  | $ | 2.3 |  |  | $ | 6,358.2 |
Balance at December 31, 2020 |  |  | 62.3 |  |  | $ | 0.6 |  |  | $ | 3,440.8 |  |  | $ | (158.4 | ) |  | $ | 2,607.7 |  |  | $ | 5,890.7 |  |  | $ | 2.6 |  |  | $ | 5,893.3 |
Consolidated net earnings |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 545.7 |  |  |  | 545.7 |  |  |  | 0.2 |  |  |  | 545.9 |
Other comprehensive earnings, net of tax |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 7.0 |  |  |  | — |  |  |  | 7.0 |  |  |  | — |  |  |  | 7.0 |
Dividends declared ($1.75 per share) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (110.0 | ) |  |  | (110.0 | ) |  |  | — |  |  |  | (110.0 | )
Issuances of common stock for stock award plans |  |  | 0.1 |  |  |  | — |  |  |  | 6.0 |  |  |  | — |  |  |  | — |  |  |  | 6.0 |  |  |  | — |  |  |  | 6.0 |
Shares withheld for employees' income tax obligations |  |  | — |  |  |  | — |  |  |  | (16.5 | ) |  |  | — |  |  |  | — |  |  |  | (16.5 | ) |  |  | — |  |  |  | (16.5 | )
Stock-based compensation expense |  |  | — |  |  |  | — |  |  |  | 33.0 |  |  |  | — |  |  |  | — |  |  |  | 33.0 |  |  |  | — |  |  |  | 33.0 |
Distributions to owners of noncontrolling interest |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (0.5 | ) |  |  | (0.5 | )
Balance at September 30, 2021 |  |  | 62.4 |  |  | $ | 0.6 |  |  | $ | 3,463.3 |  |  | $ | (151.4 | ) |  | $ | 3,043.4 |  |  | $ | 6,355.9 |  |  | $ | 2.3 |  |  | $ | 6,358.2 |

See accompanying notes to the consolidated financial statements.

Page 6 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

(UNAUDITED) CONSOLIDATED STATEMENTS OF TOTAL EQUITY (Continued)

(In Millions, Except Per Share Data) |  | Shares of Common Stock |  |  | Common Stock |  |  | Additional Paid-in Capital |  |  | Accumulated Other Comprehensive Loss |  |  | Retained Earnings |  |  | Total Shareholders' Equity |  |  | Noncontrolling Interests |  |  | Total Equity |
Balance at June 30, 2020 |  |  | 62.3 |  |  | $ | 0.6 |  |  | $ | 3,431.0 |  |  | $ | (142.2 | ) |  | $ | 2,201.7 |  |  | $ | 5,491.1 |  |  | $ | 2.5 |  |  | $ | 5,493.6 |
Consolidated net earnings |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 294.4 |  |  |  | 294.4 |  |  |  | — |  |  |  | 294.4 |
Other comprehensive earnings, net of tax |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 3.6 |  |  |  | — |  |  |  | 3.6 |  |  |  | — |  |  |  | 3.6 |
Dividends declared ($0.57 per share) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (35.6 | ) |  |  | (35.6 | ) |  |  | — |  |  |  | (35.6 | )
Issuances of common stock for stock award plans |  |  | — |  |  |  | — |  |  |  | 0.2 |  |  |  | — |  |  |  | — |  |  |  | 0.2 |  |  |  | — |  |  |  | 0.2 |
Stock-based compensation expense |  |  | — |  |  |  | — |  |  |  | 2.7 |  |  |  | — |  |  |  | — |  |  |  | 2.7 |  |  |  | — |  |  |  | 2.7 |
Balance at September 30, 2020 |  |  | 62.3 |  |  | $ | 0.6 |  |  | $ | 3,433.9 |  |  | $ | (138.6 | ) |  | $ | 2,460.5 |  |  | $ | 5,756.4 |  |  | $ | 2.5 |  |  | $ | 5,758.9 |
Balance at December 31, 2019 |  |  | 62.4 |  |  | $ | 0.6 |  |  | $ | 3,418.8 |  |  | $ | (145.8 | ) |  | $ | 2,077.2 |  |  | $ | 5,350.8 |  |  | $ | 2.5 |  |  | $ | 5,353.3 |
Consolidated net earnings |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 538.0 |  |  |  | 538.0 |  |  |  | — |  |  |  | 538.0 |
Other comprehensive earnings, net of tax |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 7.2 |  |  |  | — |  |  |  | 7.2 |  |  |  | — |  |  |  | 7.2 |
Dividends declared ($1.67 per share) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (104.7 | ) |  |  | (104.7 | ) |  |  | — |  |  |  | (104.7 | )
Issuances of common stock for stock award plans |  |  | 0.1 |  |  |  | — |  |  |  | 5.7 |  |  |  | — |  |  |  | — |  |  |  | 5.7 |  |  |  | — |  |  |  | 5.7 |
Shares withheld for employees' income tax obligations |  |  | — |  |  |  | — |  |  |  | (13.0 | ) |  |  | — |  |  |  | — |  |  |  | (13.0 | ) |  |  | — |  |  |  | (13.0 | )
Repurchases of common stock |  |  | (0.2 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (50.0 | ) |  |  | (50.0 | ) |  |  | — |  |  |  | (50.0 | )
Stock-based compensation expense |  |  | — |  |  |  | — |  |  |  | 22.4 |  |  |  | — |  |  |  | — |  |  |  | 22.4 |  |  |  | — |  |  |  | 22.4 |
Balance at September 30, 2020 |  |  | 62.3 |  |  | $ | 0.6 |  |  | $ | 3,433.9 |  |  | $ | (138.6 | ) |  | $ | 2,460.5 |  |  | $ | 5,756.4 |  |  | $ | 2.5 |  |  | $ | 5,758.9 |

See accompanying notes to the consolidated financial statements.

Page 7 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. | Significant Accounting Policies

Organization

Martin Marietta Materials, Inc. (the Company or Martin Marietta) is a natural resource-based building materials company. As of September 30, 2021, the Company supplies aggregates (crushed stone, sand and gravel) through its network of approximately 320 quarries, mines and distribution yards in 26 states, Canada and The Bahamas. In the southwestern and western United States, Martin Marietta also provides cement and downstream products and services, namely, ready mixed concrete, asphalt and paving, in vertically-integrated structured markets where the Company has a leading aggregates position. The Company’s heavy-side building materials are used in infrastructure, nonresidential and residential construction projects. Aggregates are also used in agricultural, utility and environmental applications and as railroad ballast. The aggregates, cement, ready mixed concrete, asphalt and paving product lines are reported collectively as the “Building Materials” business.

The Company’s Building Materials business includes two reportable segments: the East Group and the West Group.

BUILDING MATERIALS BUSINESS
Reportable Segments |  | East Group |  | West Group
Operating Locations |  | Alabama, Florida, Georgia, Indiana, Iowa, Kansas, Kentucky, Maryland, Minnesota, Missouri, eastern Nebraska, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia, Nova Scotia and The Bahamas |  | Arkansas, Colorado, Louisiana, western Nebraska, Oklahoma, Texas, Utah, Washington and Wyoming
Product Lines |  | Aggregates and Asphalt |  | Aggregates, Cement, Ready Mixed Concrete, Asphalt and Paving

The Company’s Magnesia Specialties business, which represents a separate reportable segment, has manufacturing facilities in Manistee, Michigan, and Woodville, Ohio. The Magnesia Specialties business produces magnesia-based chemicals products used in industrial, agricultural and environmental applications, and dolomitic lime sold primarily to customers in the steel and mining industries.

Basis of Presentation

The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP) for interim financial information and with the instructions to the Quarterly Report on Form 10-Q and in Article 10 of Regulation S-X. The Company has continued to follow the accounting policies set forth in the audited consolidated financial statements and related notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. In the opinion of management, the interim consolidated financial information provided herein reflects all adjustments, consisting of normal recurring accruals, necessary for a fair statement of the results of operations, financial position and cash flows for the interim periods. The consolidated results of operations for the three and nine months ended September 30, 2021 are not necessarily indicative of the results expected for other interim periods or the full year. The consolidated balance sheet at December 31, 2020 has been derived from the audited consolidated financial statements at that date but does not include all of the information and notes required by U.S. GAAP for complete financial statements. These consolidated financial statements should be read in conjunction with the audited

Page 8 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020.

The preparation of the Company’s consolidated financial statements requires management to make certain estimates and assumptions about future events. As future events and their effects cannot be fully determined with precision, actual results could differ significantly from estimates. Changes in estimates are reflected in the consolidated financial statements in the period in which the change in estimate occurs.

Reclassifications

As of January 1, 2021, the Company reclassified accrued income taxes from Other current liabilities to Accrued other taxes on the Company’s consolidated balance sheet. Prior-year information has been reclassified to conform to current year presentation. The reclassification had no impact on the Company’s previously reported results of operations, financial position or cash flows.

Consolidated Comprehensive Earnings and Accumulated Other Comprehensive Loss

Consolidated comprehensive earnings and accumulated other comprehensive loss consist of consolidated net earnings; adjustments for the funded status of pension and postretirement benefit plans; and foreign currency translation adjustments; and are presented in the Company’s consolidated statements of earnings and comprehensive earnings.

Comprehensive earnings attributable to Martin Marietta is as follows:

|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Net earnings attributable to Martin Marietta |  | $ | 254.6 |  |  | $ | 294.4 |  |  | $ | 545.7 |  |  | $ | 538.0 |
Other comprehensive earnings, net of tax |  |  | 1.6 |  |  |  | 3.6 |  |  |  | 7.0 |  |  |  | 7.2 |
Comprehensive earnings attributable to Martin Marietta |  | $ | 256.2 |  |  | $ | 298.0 |  |  | $ | 552.7 |  |  | $ | 545.2 |

Page 9 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

Changes in accumulated other comprehensive loss, net of tax, are as follows:

|  | (Dollars in Millions) |
|  | Pension and Postretirement Benefit Plans |  |  | Foreign Currency |  |  | Accumulated Other Comprehensive Loss |
|  | Three Months Ended September 30, 2021 |
Balance at beginning of period |  | $ | (153.5 | ) |  | $ | 0.5 |  |  | $ | (153.0 | )
Other comprehensive loss before reclassifications, net of tax |  |  | — |  |  |  | (0.6 | ) |  |  | (0.6 | )
Amounts reclassified from accumulated other comprehensive loss, net of tax |  |  | 2.2 |  |  |  | — |  |  |  | 2.2 |
Other comprehensive earnings (loss), net of tax |  |  | 2.2 |  |  |  | (0.6 | ) |  |  | 1.6 |
Balance at end of period |  | $ | (151.3 | ) |  | $ | (0.1 | ) |  | $ | (151.4 | )
|  | Three Months Ended September 30, 2020 |
Balance at beginning of period |  | $ | (140.0 | ) |  | $ | (2.2 | ) |  | $ | (142.2 | )
Other comprehensive earnings before reclassifications, net of tax |  |  | — |  |  |  | 0.5 |  |  |  | 0.5 |
Amounts reclassified from accumulated other comprehensive loss, net of tax |  |  | 3.1 |  |  |  | — |  |  |  | 3.1 |
Other comprehensive earnings, net of tax |  |  | 3.1 |  |  |  | 0.5 |  |  |  | 3.6 |
Balance at end of period |  | $ | (136.9 | ) |  | $ | (1.7 | ) |  | $ | (138.6 | )

|  | (Dollars in Millions) |
|  | Pension and Postretirement Benefit Plans |  |  | Foreign Currency |  |  | Accumulated Other Comprehensive Loss |
|  | Nine Months Ended September 30, 2021 |
Balance at beginning of period |  | $ | (158.1 | ) |  | $ | (0.3 | ) |  | $ | (158.4 | )
Other comprehensive earnings before reclassifications, net of tax |  |  | — |  |  |  | 0.2 |  |  |  | 0.2 |
Amounts reclassified from accumulated other comprehensive loss, net of tax |  |  | 6.8 |  |  |  | — |  |  |  | 6.8 |
Other comprehensive earnings, net of tax |  |  | 6.8 |  |  |  | 0.2 |  |  |  | 7.0 |
Balance at end of period |  | $ | (151.3 | ) |  | $ | (0.1 | ) |  | $ | (151.4 | )
|  | Nine Months Ended September 30, 2020 |
Balance at beginning of period |  | $ | (144.9 | ) |  | $ | (0.9 | ) |  | $ | (145.8 | )
Other comprehensive loss before reclassifications, net of tax |  |  | — |  |  |  | (0.8 | ) |  |  | (0.8 | )
Amounts reclassified from accumulated other comprehensive loss, net of tax |  |  | 8.0 |  |  |  | — |  |  |  | 8.0 |
Other comprehensive earnings (loss), net of tax |  |  | 8.0 |  |  |  | (0.8 | ) |  |  | 7.2 |
Balance at end of period |  | $ | (136.9 | ) |  | $ | (1.7 | ) |  | $ | (138.6 | )

Page 10 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

Changes in net noncurrent deferred tax assets related to accumulated other comprehensive loss are as follows:

|  | Pension and Postretirement Benefit Plans |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Balance at beginning of period |  | $ | 87.9 |  |  | $ | 83.6 |  |  | $ | 89.4 |  |  | $ | 85.2 |
Tax effect of other comprehensive earnings |  |  | (0.8 | ) |  |  | (1.1 | ) |  |  | (2.3 | ) |  |  | (2.7 | )
Balance at end of period |  | $ | 87.1 |  |  | $ | 82.5 |  |  | $ | 87.1 |  |  | $ | 82.5 |

Reclassifications out of accumulated other comprehensive loss are as follows:

|  | Three Months Ended |  |  | Nine Months Ended |  |  | Affected line items in the
|  | September 30, |  |  | September 30, |  |  | consolidated statements of earnings
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |  |  | and comprehensive earnings
|  | (Dollars in Millions) |  |  |
Pension and postretirement benefit plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service credit |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (0.1 | ) |  |
Actuarial loss |  |  | 3.0 |  |  |  | 4.2 |  |  |  | 9.1 |  |  |  | 10.8 |  |  | Other nonoperating income, net
|  |  | 3.0 |  |  |  | 4.2 |  |  |  | 9.1 |  |  |  | 10.7 |  |  |
Tax benefit |  |  | (0.8 | ) |  |  | (1.1 | ) |  |  | (2.3 | ) |  |  | (2.7 | ) |  | Income tax expense
|  | $ | 2.2 |  |  | $ | 3.1 |  |  | $ | 6.8 |  |  | $ | 8.0 |  |  |

Earnings per Common Share

The numerator for basic and diluted earnings per common share is net earnings attributable to Martin Marietta reduced by dividends and undistributed earnings attributable to certain of the Company’s stock-based compensation. If there is a net loss, no amount of the undistributed loss is attributed to unvested participating securities. The denominator for basic earnings per common share is the weighted-average number of common shares outstanding during the period. Diluted earnings per common share are computed assuming that the weighted-average number of common shares is increased by the conversion, using the treasury stock method, of awards to be issued to employees and nonemployee members of the Company’s Board of Directors under certain stock-based compensation arrangements if the conversion is dilutive. For the three and nine months ended September 30, 2021 and 2020, the diluted per-share computations reflect the number of common shares outstanding to include the number of additional shares that would have been outstanding if the potentially dilutive common shares had been issued.

Page 11 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

The following table reconciles the numerator and denominator for basic and diluted earnings per common share:

|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (In Millions) |
Net earnings attributable to Martin Marietta |  | $ | 254.6 |  |  | $ | 294.4 |  |  | $ | 545.7 |  |  | $ | 538.0 |
Less: Distributed and undistributed earnings attributable to unvested awards |  |  | — |  |  |  | 0.3 |  |  |  | — |  |  |  | 0.5 |
Basic and diluted net earnings available to common shareholders attributable to Martin Marietta |  | $ | 254.6 |  |  | $ | 294.1 |  |  | $ | 545.7 |  |  | $ | 537.5 |
Basic weighted-average common shares outstanding |  |  | 62.4 |  |  |  | 62.3 |  |  |  | 62.4 |  |  |  | 62.3 |
Effect of dilutive employee and director awards |  |  | 0.2 |  |  |  | 0.1 |  |  |  | 0.2 |  |  |  | 0.1 |
Diluted weighted-average common shares outstanding |  |  | 62.6 |  |  |  | 62.4 |  |  |  | 62.6 |  |  |  | 62.4 |

Restricted Cash

At September 30, 2021 and December 31, 2020, the Company had restricted cash of $1.7 million and $97.1 million, respectively, which is invested in an account designated for the purchase of like-kind exchange replacement assets under Section 1031 of the Internal Revenue Code and related IRS procedures (Section 1031). The Company is restricted from utilizing the cash for purposes other than the purchase of the qualified assets for a designated period from receipt of the proceeds from the sale of the exchanged property. Any unused cash at the end of the designated period will be transferred to unrestricted accounts of the Company and can then be used for general corporate purposes. The Company has until January 10, 2022 to use the remaining restricted cash to purchase qualified assets under Section 1031.

In connection with Accounting Standards Update 2016-18, Statement of Cash Flows (Topic 230), the statement of cash flows reflects cash flow changes and balances for cash, cash equivalents and restricted cash on an aggregated basis.

The following table reconciles cash, cash equivalents and restricted cash as reported on the consolidated balance sheets to the aggregated amounts presented on the consolidated statements of cash flows:

|  | September 30, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Cash and cash equivalents |  | $ | 2,381.4 |  |  | $ | 207.3 |
Restricted cash |  |  | 1.7 |  |  |  | 97.1 |
Total cash, cash equivalents and restricted cash presented in the consolidated statements of cash flows |  | $ | 2,383.1 |  |  | $ | 304.4 |

New Accounting Pronouncement

In March 2020, the FASB issued Accounting Standards Update (ASU) 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting”, an optional guidance for a limited period of time to ease the transition from the London interbank offered rate (“LIBOR”) to an alternative reference rate. The

Page 12 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

ASU intends to address certain concerns relating to accounting for contract modifications and hedge accounting. These optional expedients and exceptions to applying U.S. GAAP, assuming certain criteria are met, are allowed through December 31, 2022, and any amendments should be applied on a prospective basis. The Company does not expect the transition from LIBOR to have a material impact on its consolidated financial statements.

2. | Revenue Recognition

Total revenues include sales of products and services to customers, net of any discounts or allowances, and freight revenues. Product revenues are recognized when control of the promised good is transferred to the customer, typically when finished products are shipped. Intersegment and interproduct revenues are eliminated in consolidation. Service revenues are derived from the paving business and are recognized using the percentage-of-completion method under the cost-to-cost approach. Freight revenues reflect delivery arranged by the Company using a third party on behalf of the customer and are recognized consistently with the timing of the product revenues.

Performance Obligations. Performance obligations are contractual promises to transfer or provide a distinct good or service for a stated price. The Company’s product sales agreements are single-performance obligations that are satisfied at a point in time. Performance obligations within paving service agreements are satisfied over time, primarily ranging from one day to two years. For product revenues and freight revenues, customer payment terms are generally 30 days from invoice date. Customer payments for the paving operations are based on a contractual billing schedule and are due 30 days from invoice date.

Future revenues from unsatisfied performance obligations at September 30, 2021 and 2020 were $183.0 million and $150.2 million, respectively, where the remaining periods to complete these obligations ranged from one month to 21 months and one month to 13 months, respectively.

Page 13 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

Revenue by Category. The following table presents the Company’s total revenues by category for each reportable segment.

|  | Three Months Ended |
|  | September 30, 2021 |
|  | Products and Services |  |  | Freight |  |  | Total |
|  | (Dollars in Millions) |
East Group |  | $ | 641.8 |  |  | $ | 42.3 |  |  | $ | 684.1 |
West Group |  |  | 749.0 |  |  |  | 45.8 |  |  |  | 794.8 |
Total Building Materials business |  |  | 1,390.8 |  |  |  | 88.1 |  |  |  | 1,478.9 |
Magnesia Specialties |  |  | 71.9 |  |  |  | 6.5 |  |  |  | 78.4 |
Total |  | $ | 1,462.7 |  |  | $ | 94.6 |  |  | $ | 1,557.3 |
|  | Three Months Ended |
|  | September 30, 2020 |
|  | Products and Services |  |  | Freight |  |  | Total |
|  | (Dollars in Millions) |
East Group |  | $ | 514.1 |  |  | $ | 35.2 |  |  | $ | 549.3 |
West Group |  |  | 671.4 |  |  |  | 39.8 |  |  |  | 711.2 |
Total Building Materials business |  |  | 1,185.5 |  |  |  | 75.0 |  |  |  | 1,260.5 |
Magnesia Specialties |  |  | 55.2 |  |  |  | 5.7 |  |  |  | 60.9 |
Total |  | $ | 1,240.7 |  |  | $ | 80.7 |  |  | $ | 1,321.4 |

Service revenues, which include paving services located in Colorado , were $100.5 million and $112.8 million for the three months ended September 30, 2021 and 2020, respectively, and are reported in the West Group .

Page 14 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

|  | Nine Months Ended |
|  | September 30, 2021 |
|  | Products and Services |  |  | Freight |  |  | Total |
|  | (Dollars in Millions) |
East Group |  | $ | 1,610.9 |  |  | $ | 103.5 |  |  | $ | 1,714.4 |
West Group |  |  | 1,861.9 |  |  |  | 116.3 |  |  |  | 1,978.2 |
Total Building Materials business |  |  | 3,472.8 |  |  |  | 219.8 |  |  |  | 3,692.6 |
Magnesia Specialties |  |  | 207.1 |  |  |  | 17.9 |  |  |  | 225.0 |
Total |  | $ | 3,679.9 |  |  | $ | 237.7 |  |  | $ | 3,917.6 |
|  | Nine Months Ended |
|  | September 30, 2020 |
|  | Products and Services |  |  | Freight |  |  | Total |
|  | (Dollars in Millions) |
East Group |  | $ | 1,371.8 |  |  | $ | 94.1 |  |  | $ | 1,465.9 |
West Group |  |  | 1,785.4 |  |  |  | 118.8 |  |  |  | 1,904.2 |
Total Building Materials business |  |  | 3,157.2 |  |  |  | 212.9 |  |  |  | 3,370.1 |
Magnesia Specialties |  |  | 164.0 |  |  |  | 16.2 |  |  |  | 180.2 |
Total |  | $ | 3,321.2 |  |  | $ | 229.1 |  |  | $ | 3,550.3 |

Service revenues for the nine months ended September 30, 2021 and 2020 were $182.7 million and $221.3 million, respectively.

Contract Balances. Costs in excess of billings relate to the conditional right to consideration for completed contractual performance and are contract assets on the consolidated balance sheets. Costs in excess of billings are reclassified to accounts receivable when the right to consideration becomes unconditional. Billings in excess of costs relate to customers invoiced in advance of contractual performance and are contract liabilities on the consolidated balance sheets. The following table presents information about the Company’s contract balances:

(Dollars in Millions) |  | September 30, 2021 |  |  | December 31, 2020 |  |
Costs in excess of billings |  | $ | 10.8 |  |  | $ | 2.2 |
Billings in excess of costs |  | $ | 10.7 |  |  | $ | 14.0 |

Revenues recognized from the beginning balance of contract liabilities for the three months ended September 30, 2021 and 2020 were $7.1 million and $8.5 million, respectively, and for the nine months ended September 30, 2021 and 2020 were $11.9 million and $7.2 million, respectively.

Retainage, which primarily relates to the paving services, represents amounts that have been billed to customers but payment withheld until final acceptance by the customer of the performance obligation. Included in other current assets on the Company’s consolidated balance sheets, retainage was $10.0 million and $10.6 million at September 30, 2021 and December 31, 2020, respectively.

Policy Elections. When the Company arranges third-party freight to deliver products to customers, the Company has elected the delivery to be a fulfillment activity rather than a separate performance obligation. Further, the

Page 15 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

Company acts as a principal in the delivery arrangements and, as required by the accounting standard, the related revenues and costs are presented gross and are included in the consolidated statements of earnings.

3. | Business Combinations

On July 30, 2021, the Company acquired assets of Southern Crushed Concrete (SCC). SCC is a leading producer of recycled concrete in the Houston area, one of the country’s largest addressable aggregates markets. Recycled concrete is principally used as a base aggregates product in infrastructure, commercial and residential construction applications. The Company acquired inventories; property, plant and equipment; intangible assets (including goodwill), and right-of-use assets; and assumed asset retirement obligations; lease obligations; and other liabilities. The goodwill generated by the transaction will be deductible for income tax purposes. Although the initial accounting for the business combination has been recorded, the fair values of these amounts are subject to change during the measurement period, which remains open as of September 30, 2021. The acquisition is reported in the Company’s West Group, but is immaterial for pro-forma financial statement disclosures.

On April 30, 2021, the Company completed the acquisition of Tiller Corporation (Tiller), a leading aggregates and hot mix asphalt supplier in the Minneapolis/St. Paul area, one of the largest and fastest growing midwestern metropolitan areas. The Tiller acquisition complements the Company’s existing product offerings in the surrounding areas. Additionally, Tiller sells asphalt solely as a materials provider and does not offer paving or other associated services. The Company financed the acquisition using available cash and borrowings under its credit facilities. The Company has recorded preliminary fair values of the assets acquired and liabilities assumed, which are subject to asset verification and a normal post-closing working capital adjustment. Therefore, the measurement period for property, plant and equipment and goodwill remains open as of September 30, 2021. The goodwill generated by the transaction will be deductible for income tax purposes. The acquisition is reported in the Company’s East Group, but is immaterial for pro-forma financial statement disclosures.

4. | Goodwill and Other Intangibles

The following table shows the changes in goodwill by reportable segment and in total:

|  | East |  |  | West |  |  |  |  |
|  | Group |  |  | Group |  |  | Total |
|  | (Dollars in Millions) |
Balance at January 1, 2021 |  | $ | 572.5 |  |  | $ | 1,841.5 |  |  | $ | 2,414.0 |
Acquisitions |  |  | 185.9 |  |  |  | 12.8 |  |  |  | 198.7 |
Goodwill allocated to assets held for sale |  |  | — |  |  |  | (2.1 | ) |  |  | (2.1 | )
Balance at September 30, 2021 |  | $ | 758.4 |  |  | $ | 1,852.2 |  |  | $ | 2,610.6 |

Page 16 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

Intangible assets subject to amortization consist of the following:

|  | Gross Amount |  |  | Accumulated Amortization |  |  | Net Balance |
(Dollars in Millions) |  | September 30, 2021 |
Noncompetition agreements |  | $ | 4.2 |  |  | $ | (4.1 | ) |  | $ | 0.1 |
Customer relationships |  |  | 312.7 |  |  |  | (44.3 | ) |  |  | 268.4 |
Operating permits |  |  | 523.8 |  |  |  | (53.7 | ) |  |  | 470.1 |
Use rights and other |  |  | 16.4 |  |  |  | (13.8 | ) |  |  | 2.6 |
Trade names |  |  | 23.3 |  |  |  | (13.3 | ) |  |  | 10.0 |
Total |  | $ | 880.4 |  |  | $ | (129.2 | ) |  | $ | 751.2 |
|  | December 31, 2020 |
Noncompetition agreements |  | $ | 4.2 |  |  | $ | (4.1 | ) |  | $ | 0.1 |
Customer relationships |  |  | 91.3 |  |  |  | (35.6 | ) |  |  | 55.7 |
Operating permits |  |  | 460.8 |  |  |  | (48.4 | ) |  |  | 412.4 |
Use rights and other |  |  | 16.3 |  |  |  | (13.0 | ) |  |  | 3.3 |
Trade names |  |  | 12.8 |  |  |  | (12.3 | ) |  |  | 0.5 |
Total |  | $ | 585.4 |  |  | $ | (113.4 | ) |  | $ | 472.0 |

At September 30, 2021 and December 31, 2020, intangible assets deemed to have an indefinite life and not being amortized consist of the following:

(Dollars in Millions) |  | Building Materials business |  |  | Magnesia Specialties |  |  | Total |
Operating permits |  | $ | 6.6 |  |  | $ | — |  |  | $ | 6.6 |
Use rights |  |  | 26.7 |  |  |  | — |  |  |  | 26.7 |
Trade names |  |  | 0.2 |  |  |  | 2.5 |  |  |  | 2.7 |
Total |  | $ | 33.5 |  |  | $ | 2.5 |  |  | $ | 36.0 |

For the nine months ended September 30, 2021, the Company acquired $294.9 million of intangibles, which consists of the following:

(Dollars in Millions) |  | Amount |  |  | Weighted-average amortization period
Subject to amortization: |  |  |  |  |  |
Customer relationships |  | $ | 221.4 |  |  | 24 years
Permits |  |  | 63.0 |  |  | 40 years
Trade name |  |  | 10.5 |  |  | 9 years
Total |  | $ | 294.9 |  |  | 27 years

Total amortization expense for intangible assets for the nine months ended September 30, 2021 and 2020 was $15.2 million and $9.8 million, respectively.

Page 17 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

The estimated amortization expense for intangibles for the remainder of 2021, each of the next four years, and thereafter is as follows:

(Dollars in Millions) |  |  |  |
October - December 2021 |  | $ | 6.4 |
2022 |  |  | 25.0 |
2023 |  |  | 24.7 |
2024 |  |  | 24.4 |
2025 |  |  | 24.3 |
Thereafter |  |  | 646.4 |
Total |  | $ | 751.2 |

5. | Inventories, Net

|  | September 30, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Finished products |  | $ | 683.2 |  |  | $ | 667.0 |
Products in process |  |  | 25.6 |  |  |  | 37.1 |
Raw materials |  |  | 55.9 |  |  |  | 35.3 |
Supplies and expendable parts |  |  | 152.0 |  |  |  | 149.9 |
|  |  | 916.7 |  |  |  | 889.3 |
Less: Allowances |  |  | (199.2 | ) |  |  | (180.3 | )
Total |  | $ | 717.5 |  |  | $ | 709.0 |

6. | Long-Term Debt

|  | September 30, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
0.650% Senior Notes, due 2023 |  | $ | 696.9 |  |  | $ | — |
4.250% Senior Notes, due 2024 |  |  | 398.1 |  |  |  | 397.6 |
7% Debentures, due 2025 |  |  | 124.5 |  |  |  | 124.5 |
3.450% Senior Notes, due 2027 |  |  | 297.9 |  |  |  | 297.6 |
3.500% Senior Notes, due 2027 |  |  | 496.2 |  |  |  | 495.8 |
2.500% Senior Notes, due 2030 |  |  | 490.9 |  |  |  | 490.1 |
2.400% Senior Notes, due 2031 |  |  | 891.7 |  |  |  | — |
6.25% Senior Notes, due 2037 |  |  | 228.3 |  |  |  | 228.2 |
4.250% Senior Notes, due 2047 |  |  | 592.0 |  |  |  | 591.9 |
3.200% Senior Notes, due 2051 |  |  | 882.9 |  |  |  | — |
Trade Receivable Facility, interest rate of 0.77 % at September 30, 2021 |  |  | 20.0 |  |  |  | — |
Other notes |  |  | 0.1 |  |  |  | 0.1 |
Total debt |  |  | 5,119.5 |  |  |  | 2,625.8 |
Less: Current maturities of long-term debt |  |  | (20.1 | ) |  |  | — |
Long-term debt |  | $ | 5,099.4 |  |  | $ | 2,625.8 |

Page 18 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

On July 2, 2021, the Company issued $700 million aggregate principal amount of 0.650% Senior Notes due 2023 (the 0.650% Senior Notes), $900 million aggregate principal amount of 2.400% Senior Notes due 2031 (the 2.400% Senior Notes) and $900 million aggregate principal amount of 3.200% Senior Notes due 2051 (the 3.200% Senior Notes) and, together with the 0.650% Senior Notes and the 2.400% Senior Notes (the Senior Notes), pursuant to a base indenture, dated as of May 22, 2017 (the Base Indenture), as amended and supplemented from time to time, including by the Fourth Supplemental Indenture, dated as of July 2, 2021 and, together with the Base Indenture (the Indenture) between the Company and Regions Bank, as trustee, governing the Senior Notes. The Senior Notes are carried net of original issue discount, which will be amortized using the effective interest method over the lives of the issues. The Company used the net proceeds of the 2.400% Senior Notes, the 3.200% Senior Notes and the 0.650% Senior Notes to pay the consideration for the acquisition of Lehigh Hanson, Inc.’s West Region (Lehigh West Region) business, and for general corporate purposes. See Note 16 for more information on the Lehigh West Region acquisition, which was consummated on October 1, 2021.

Prior to July 2, 2022 (the 2023 Par Call Date), the Company may redeem the 0.650% Senior Notes, at its option, at any time in whole or from time to time in part at a price equal to the greater of: (i) 100% of the principal amount of the 0.650% Senior Notes to be redeemed and (ii) the sum of the present values of the principal amount of the 0.650% Senior Notes to be redeemed and the remaining scheduled payments of interest thereon after the date of optional redemption (a 2023 Optional Redemption Date) through the 2023 Par Call Date (assuming, for this purpose, that the 0.650% Senior Notes are scheduled to mature on the 2023 Par Call Date), excluding interest, if any, accrued thereon to such 2023 Optional Redemption Date, discounted to such 2023 Optional Redemption Date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined in the Indenture) plus 10 basis points (or 0.100%) plus, in each case, unpaid interest, if any, accrued thereon to, but excluding, such 2023 Optional Redemption Date. On or after the 2023 Par Call Date and prior to maturity, the Company may redeem the 0.650% Senior Notes at any time in whole or from time to time in part at a price equal to 100% of the principal amount of the 0.650% Senior Notes, at its option, to be redeemed, plus unpaid interest, if any, accrued thereon to, but excluding, the 2023 Optional Redemption Date.

Prior to April 15, 2031 (the 2031 Par Call Date), the Company may redeem the 2.400% Senior Notes, at its option, at any time in whole or from time to time in part at a price equal to the greater of: (i) 100% of the principal amount of the 2.400% Senior Notes to be redeemed and (ii) the sum of the present values of the principal amount of the 2.400% Senior Notes to be redeemed and the remaining scheduled payments of interest thereon after the date of optional redemption (a 2031 Optional Redemption Date) through the 2031 Par Call Date (assuming, for this purpose, that the 2.400% Senior Notes are scheduled to mature on the 2031 Par Call Date), excluding interest, if any, accrued thereon to such 2031 Optional Redemption Date, discounted to such 2031 Optional Redemption Date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined in the Indenture) plus 15 basis points (or 0.150%) plus, in each case, unpaid interest, if any, accrued thereon to, but excluding, such 2031 Optional Redemption Date. On or after the 2031 Par Call Date and prior to maturity, the Company may redeem the 2.400% Senior Notes at any time in whole or from time to time in part at a price equal to 100% of the principal amount of the 2.400% Senior Notes, at its option, to be redeemed, plus unpaid interest, if any, accrued thereon to, but excluding, the 2031 Optional Redemption Date.

Page 19 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

Prior to January 15, 2051 (the 2051 Par Call Date), the Company may redeem the 3.200% Senior Notes, at its option, at any time in whole or from time to time in part at a price equal to the greater of: (i) 100% of the principal amount of the 3.200% Senior Notes to be redeemed and (ii) the sum of the present values of the principal amount of the 3.200% Senior Notes to be redeemed and the remaining scheduled payments of interest thereon after the date of optional redemption (a 2051 Optional Redemption Date) through the 2051 Par Call Date (assuming, for this purpose, that the 3.200% Senior Notes are scheduled to mature on the 2051 Par Call Date), excluding interest, if any, accrued thereon to such 2051 Optional Redemption Date, discounted to such 2051 Optional Redemption Date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined in the Indenture) plus 20 basis points (or 0.200%) plus, in each case, unpaid interest, if any, accrued thereon to, but excluding, such 2051 Optional Redemption Date. On or after the 2051 Par Call Date and prior to maturity, the Company may redeem the 3.200% Senior Notes at any time in whole or from time to time in part at a price equal to 100% of the principal amount of the 3.200% Senior Notes, at its option, to be redeemed, plus unpaid interest, if any, accrued thereon to, but excluding, the 2051 Optional Redemption Date.

The Company, through a wholly-owned special-purpose subsidiary, has a $400 million trade receivable securitization facility (the Trade Receivable Facility). On September 22, 2021 the Company extended the maturity to September 21, 2022. The Trade Receivable Facility, with Truist Bank, Regions Bank, PNC Bank, N.A., The Bank of Tokyo-Mitsubishi UFJ, LTD. (New York Branch), and certain other lenders that may become a party to the facility from time to time, is backed by eligible trade receivables, as defined, and is limited to the lesser of the facility limit or the borrowing base, as defined. These receivables are originated by the Company and then sold by the Company to the wholly-owned special-purpose subsidiary. The Company con tinues to be responsible for the servicing and administration of the receivables purchased by the wholly-owned special-purpose subsidiary. Borrowings under the Trade Receivable Facility bear interest at a rate equal to asset-backed commercial paper costs of conduit lenders plus 0.60% for borrowings funded by conduit lenders and one-month LIBOR plus 0.70%, subject to change in the event that this rate no longer reflects the lender’s cost of lending, for borrowings funded by all other lenders. The Trade Receivable Facility contains a cross-default provision to the Company’s other debt agreements. Subject to certain conditions, including lenders providing the requisite commitments, the Trade Receivable Facility may be increased to a borrowing base not to exceed $500 million. There was $20.0 million outstanding under the Trade Receivable Facility at September 30, 2021, and no borrowings outstanding at December 31, 2020.

The Company has a $700 million five-year senior unsecured revolving facility (the Revolving Facility) with JPMorgan Chase Bank, N.A., as Administrative Agent, Truist Bank, Deutsche Bank Securities, Inc., and Wells Fargo Bank, N.A., as Co-Syndication Agents, and the lenders party thereto. Borrowings under the Revolving Facility bear interest, at the Company’s option, at rates based upon LIBOR or a base rate, plus, for each rate, a margin determined in accordance with a ratings-based pricing grid. There were no borrowings outstanding under the Revolving Facility at September 30, 2021 or December 31, 2020. The Revolving Facility requires the Company’s ratio of consolidated debt-to-consolidated earnings before interest, taxes, depreciation and amortization (EBITDA), as defined by the Revolving Facility, for the trailing-twelve months (the Ratio) to not exceed 3.50x as of the end of any fiscal quarter, provided that the Company may exclude from the Ratio debt incurred in connection with certain acquisitions during such quarter or the three preceding quarters so long as the Ratio calculated without such exclusion does not exceed 3.75x. Additionally, if there are no amounts outstanding under the Revolving Facility and the Trade Receivable Facility, consolidated debt, including debt for which the Company is a co-borrower, may be reduced by the Company’s unrestricted cash and cash equivalents in excess of $50 million, such reduction not to exceed $200 million, for purposes of the covenant calculation. The Company was in compliance with this covenant at September 30, 2021.

The Revolving Facility expires on December 5, 2024, with any outstanding principal amounts, together with interest accrued thereon, due in full on that date. Available borrowings under the Revolving Facility are reduced by any

Page 20 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

outstanding letters of credit issued by the Company under the Revolving Facility. The Company had $2.6 million of outstanding letters of credit issued under the Revolving Facility at September 30, 2021 and December 31, 2020.

7. | Financial Instruments

The Company’s financial instruments include temporary cash investments, restricted cash, accounts receivable, accounts payable, publicly-registered long-term notes, debentures and other long-term debt. The estimated fair values for all financial instruments are estimated based on Level 2 of the fair value hierarchy.

Temporary cash investments are placed primarily in money market funds, money market demand deposit accounts and Eurodollar time deposits. The Company’s cash equivalents have original maturities of less than three months. Due to the short maturity of these investments, they are carried on the consolidated balance sheets at cost, which approximates fair value.

Restricted cash is held in a trust account with a third-party intermediary. Due to the short-term nature of this account, the fair value of restricted cash approximates its carrying value.

Accounts receivable are due from a large number of customers, primarily in the construction industry, and are dispersed across wide geographic and economic regions. No single customer accounted for 10% or more of consolidated total revenues in the three-month and nine-month periods ended September 30, 2021 and 2020. The estimated fair values of accounts receivable approximate their carrying amounts due to the short-term nature of the accounts.

Accounts payable represent amounts owed to suppliers and vendors. The estimated fair value of accounts payable approximates the carrying amount due to the short-term nature of the payables.

The carrying values and fair values of the Company’s long-term debt were $5.12 billion and $5.49 billion, respectively, at September 30, 2021 and $2.63 billion and $3.08 billion, respectively, at December 31, 2020. The estimated fair value of the publicly-registered long-term notes was estimated using quoted market prices. The estimated fair values of other borrowings approximate their carrying amounts as the interest rates reset periodically.

8. | Income Taxes

The effective income tax rate reflects the effect of federal and state income taxes on earnings and the impact of differences in book and tax accounting arising primarily from the permanent tax benefits associated with the statutory depletion deduction for mineral reserves. For the nine months ended September 30, 2021, the effective income tax rate was 20.6%, which included a $2.9 million discrete benefit for research and development tax credits. For the nine months ended September 30, 2020, the effective income tax rate of 21.0% reflected a $6.9 million discrete benefit from financing third-party railroad track maintenance. In exchange, the Company received a federal income tax credit and deduction.

The Company records interest accrued in relation to unrecognized tax benefits as income tax expense. Penalties, if incurred, are recorded as operating expenses in the consolidated statements of earnings and comprehensive earnings.

Page 21 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

9. | Pension and Postretirement Benefits

The estimated components of the recorded net periodic benefit cost (credit) for pension and postretirement benefits are as follows:

|  | Pension |  |  | Postretirement Benefits |
|  | Three Months Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Service cost |  | $ | 11.6 |  |  | $ | 9.8 |  |  | $ | — |  |  | $ | — |
Interest cost |  |  | 8.9 |  |  |  | 9.3 |  |  |  | 0.1 |  |  |  | 0.1 |
Expected return on assets |  |  | (17.7 | ) |  |  | (15.2 | ) |  |  | — |  |  |  | — |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost (credit) |  |  | 0.2 |  |  |  | 0.2 |  |  |  | (0.2 | ) |  |  | (0.2 | )
Actuarial loss |  |  | 3.0 |  |  |  | 4.2 |  |  |  | — |  |  |  | — |
Net periodic benefit cost (credit) |  | $ | 6.0 |  |  | $ | 8.3 |  |  | $ | (0.1 | ) |  | $ | (0.1 | )

|  | Pension |  |  | Postretirement Benefits |
|  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Service cost |  | $ | 34.7 |  |  | $ | 29.4 |  |  | $ | — |  |  | $ | — |
Interest cost |  |  | 26.7 |  |  |  | 27.8 |  |  |  | 0.2 |  |  |  | 0.3 |
Expected return on assets |  |  | (52.8 | ) |  |  | (43.8 | ) |  |  | — |  |  |  | — |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost (credit) |  |  | 0.5 |  |  |  | 0.5 |  |  |  | (0.5 | ) |  |  | (0.6 | )
Actuarial loss (gain) |  |  | 9.2 |  |  |  | 10.9 |  |  |  | (0.1 | ) |  |  | (0.1 | )
Net periodic benefit cost (credit) |  | $ | 18.3 |  |  | $ | 24.8 |  |  | $ | (0.4 | ) |  | $ | (0.4 | )

The service cost component of net periodic benefit cost (credit) is included in Cost of revenues – products and services and Selling, general and administrative expenses. All other components are included in Other nonoperating income, net, in the consolidated statements of earnings and comprehensive earnings.

10. | Commitments and Contingencies

Legal and Administrative Proceedings

The Company is engaged in certain legal and administrative proceedings incidental to its normal business activities, including matters relating to environmental protection. The Company considers various factors in assessing the probable outcome of each matter, including but not limited to the nature of existing legal proceedings and claims, the asserted or possible damages, the jurisdiction and venue of the case and whether it is a jury trial, the progress of the case, existing law and precedent, the opinions or views of legal counsel and other advisers, the Company’s experience in similar cases and the experience of other companies, the facts available to the Company at the time of assessment, and how the Company intends to respond to the proceeding or claim. The Company’s assessment of these factors may change over time as proceedings or claims progress. The Company believes the probability is remote that the outcome of any currently pending legal or administrative proceeding will result in a material loss to the Company as a whole, based on currently available facts.

Page 22 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

Borrowing Arrangements with Affiliate

The Company is a co-borrower with an unconsolidated affiliate for a $12.5 million revolving line of credit agreement with Truist Bank, of which $5.4 million was outstanding as of September 30, 2021 and has a maturity date of March 2022. The affiliate has agreed to reimburse and indemnify the Company for any payments and expenses the Company may incur from this agreement. The Company holds a lien on the affiliate’s membership interest in a joint venture as collateral for payment under the revolving line of credit.

In addition, the Company has a $6.0 million interest-only loan, due December 31, 2022, outstanding from this unconsolidated affiliate as of September 30, 2021 and December 31, 2020. The interest rate is one-month LIBOR plus a current spread of 1.75%.

Letters of Credit

In the normal course of business, the Company provides certain third parties with standby letter of credit agreements guaranteeing its payment for certain insurance claims, contract performance and permit requirements. At September 30, 2021, the Company was contingently liable for $35.0 million in letters of credit, of which $2.6 million were issued under the Company’s Revolving Facility.

1 1. | Business Segments

The Building Materials business contains two reportable segments: the East Group and the West Group. The Company also has a Magnesia Specialties segment. The Company’s evaluation of performance and allocation of resources are based primarily on earnings from operations. Consolidated earnings from operations include total revenues less cost of revenues; selling, general and administrative expenses; acquisition-related expenses; other operating income and expenses, net; and exclude interest expense; other nonoperating income and expenses, net; and income taxes. Corporate loss from operations primarily includes depreciation; expenses for corporate administrative functions; acquisition-related expenses; and other nonrecurring income and expenses excluded from the Company’s evaluation of business segment performance and resource allocation. All long-term debt and related interest expense are held at Corporate.

The following table displays selected financial data for the Company’s reportable segments. Total revenues, as presented on the consolidated statements of earnings and comprehensive earnings, exclude intersegment revenues, which represent sales from one segment to another segment and are eliminated in consolidation.

Page 23 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Total revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  | $ | 684.1 |  |  | $ | 549.3 |  |  | $ | 1,714.4 |  |  | $ | 1,465.9 |
West Group |  |  | 794.8 |  |  |  | 711.2 |  |  |  | 1,978.2 |  |  |  | 1,904.2 |
Total Building Materials business |  |  | 1,478.9 |  |  |  | 1,260.5 |  |  |  | 3,692.6 |  |  |  | 3,370.1 |
Magnesia Specialties |  |  | 78.4 |  |  |  | 60.9 |  |  |  | 225.0 |  |  |  | 180.2 |
Total |  | $ | 1,557.3 |  |  | $ | 1,321.4 |  |  | $ | 3,917.6 |  |  | $ | 3,550.3 |
Products and services revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  | $ | 641.8 |  |  | $ | 514.1 |  |  | $ | 1,610.9 |  |  | $ | 1,371.8 |
West Group |  |  | 749.0 |  |  |  | 671.4 |  |  |  | 1,861.9 |  |  |  | 1,785.4 |
Total Building Materials business |  |  | 1,390.8 |  |  |  | 1,185.5 |  |  |  | 3,472.8 |  |  |  | 3,157.2 |
Magnesia Specialties |  |  | 71.9 |  |  |  | 55.2 |  |  |  | 207.1 |  |  |  | 164.0 |
Total |  | $ | 1,462.7 |  |  | $ | 1,240.7 |  |  | $ | 3,679.9 |  |  | $ | 3,321.2 |
Earnings (Loss) from operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  | $ | 205.8 |  |  | $ | 181.4 |  |  | $ | 465.3 |  |  | $ | 386.1 |
West Group |  |  | 150.6 |  |  |  | 212.3 |  |  |  | 284.2 |  |  |  | 368.2 |
Total Building Materials business |  |  | 356.4 |  |  |  | 393.7 |  |  |  | 749.5 |  |  |  | 754.3 |
Magnesia Specialties |  |  | 23.1 |  |  |  | 16.4 |  |  |  | 69.8 |  |  |  | 51.2 |
Corporate |  |  | (22.6 | ) |  |  | (9.5 | ) |  |  | (55.6 | ) |  |  | (40.7 | )
Total |  | $ | 356.9 |  |  | $ | 400.6 |  |  | $ | 763.7 |  |  | $ | 764.8 |

|  | September 30, 2021 |  |  | December 31, 2020 |
Assets employed: |  | (Dollars in Millions) |
East Group |  | $ | 5,075.9 |  |  | $ | 4,342.5 |
West Group |  |  | 5,613.4 |  |  |  | 5,355.5 |
Total Building Materials business |  |  | 10,689.3 |  |  |  | 9,698.0 |
Magnesia Specialties |  |  | 169.6 |  |  |  | 167.9 |
Corporate |  |  | 2,927.3 |  |  |  | 714.9 |
Total |  | $ | 13,786.2 |  |  | $ | 10,580.8 |

The increase in assets from December 31, 2020 to September 30, 2021 primarily relates to the proceeds from the Senior Notes issued in July 2021, new right-of-use assets for finance leases and the Tiller and SCC acquisitions. The proceeds from the Senior Notes issuance are reflected as Corporate assets as of September 30, 2021.

Page 24 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

1 2. | Revenues and Gross Profit

The Building Materials business includes the aggregates, cement, ready mixed concrete and asphalt and paving product lines. Cement and ready mixed concrete product lines and paving services reside only in the West Group. The following table, which is reconciled to consolidated amounts, provides total revenues and gross profit by product line.

|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Total revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 857.1 |  |  | $ | 766.9 |  |  | $ | 2,231.5 |  |  | $ | 2,092.1 |
Cement |  |  | 132.3 |  |  |  | 115.6 |  |  |  | 358.4 |  |  |  | 331.7 |
Ready mixed concrete |  |  | 320.8 |  |  |  | 254.6 |  |  |  | 824.5 |  |  |  | 689.4 |
Asphalt and paving services |  |  | 195.9 |  |  |  | 129.8 |  |  |  | 343.5 |  |  |  | 254.9 |
Less: interproduct revenues |  |  | (115.3 | ) |  |  | (81.4 | ) |  |  | (285.1 | ) |  |  | (210.9 | )
Products and services |  |  | 1,390.8 |  |  |  | 1,185.5 |  |  |  | 3,472.8 |  |  |  | 3,157.2 |
Freight |  |  | 88.1 |  |  |  | 75.0 |  |  |  | 219.8 |  |  |  | 212.9 |
Total Building Materials business |  |  | 1,478.9 |  |  |  | 1,260.5 |  |  |  | 3,692.6 |  |  |  | 3,370.1 |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  | 71.9 |  |  |  | 55.2 |  |  |  | 207.1 |  |  |  | 164.0 |
Freight |  |  | 6.5 |  |  |  | 5.7 |  |  |  | 17.9 |  |  |  | 16.2 |
Total Magnesia Specialties |  |  | 78.4 |  |  |  | 60.9 |  |  |  | 225.0 |  |  |  | 180.2 |
Total |  | $ | 1,557.3 |  |  | $ | 1,321.4 |  |  | $ | 3,917.6 |  |  | $ | 3,550.3 |
Gross profit (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 292.9 |  |  | $ | 279.1 |  |  | $ | 687.7 |  |  | $ | 640.4 |
Cement |  |  | 49.9 |  |  |  | 46.5 |  |  |  | 101.3 |  |  |  | 117.2 |
Ready mixed concrete |  |  | 31.4 |  |  |  | 24.7 |  |  |  | 69.9 |  |  |  | 56.7 |
Asphalt and paving services |  |  | 38.9 |  |  |  | 32.6 |  |  |  | 59.4 |  |  |  | 46.4 |
Products and services |  |  | 413.1 |  |  |  | 382.9 |  |  |  | 918.3 |  |  |  | 860.7 |
Freight |  |  | 1.3 |  |  |  | 0.9 |  |  |  | 1.7 |  |  |  | 0.3 |
Total Building Materials business |  |  | 414.4 |  |  |  | 383.8 |  |  |  | 920.0 |  |  |  | 861.0 |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  | 28.1 |  |  |  | 21.0 |  |  |  | 84.4 |  |  |  | 65.3 |
Freight |  |  | (1.1 | ) |  |  | (1.0 | ) |  |  | (3.0 | ) |  |  | (3.2 | )
Total Magnesia Specialties |  |  | 27.0 |  |  |  | 20.0 |  |  |  | 81.4 |  |  |  | 62.1 |
Corporate |  |  | 0.5 |  |  |  | 0.7 |  |  |  | 0.3 |  |  |  | 4.3 |
Total |  | $ | 441.9 |  |  | $ | 404.5 |  |  | $ | 1,001.7 |  |  | $ | 927.4 |

Page 25 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

1 3. | Supplemental Cash Flow Information

Noncash investing and financing activities are as follows:

|  | Nine Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Noncash investing and financing activities: |  |  |  |  |  |  |  |
Right-of-use assets obtained in exchange for new finance lease liabilities |  | $ | 177.8 |  |  | $ | 15.0 |
Right-of-use assets obtained in exchange for new operating lease liabilities |  | $ | 17.3 |  |  | $ | 29.3 |
Accrued liabilities for purchases of property, plant and equipment |  | $ | 28.6 |  |  | $ | 30.5 |
Remeasurement of operating lease right-of-use assets |  | $ | (12.4 | ) |  | $ | 1.9 |

For the nine months ended September 30, 2021, the right-of-use assets obtained in exchange for new finance lease liabilities balance was primarily attributable to the leases of the new corporate headquarters, production equipment and leases assumed as part acquisitions completed during the year.

Supplemental disclosures of cash flow information are as follows:

|  | Nine Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Cash paid for interest, net of capitalized amount |  | $ | 68.7 |  |  | $ | 74.7 |
Cash paid for income taxes, net of refunds |  | $ | 101.1 |  |  | $ | 68.9 |

During the nine months ended September 30, 2021 and 2020, the Company received proceeds of $13.9 million and repaid $13.7 million of loans, respectively, related to its company-owned life insurance policies. The proceeds and repayment, as applicable, are included in the Investments in life insurance contracts, net, in the investing activities of the consolidated statements of cash flows.

1 4. | Other Operating Income, Net

Other operating income, net, for the nine months ended September 30, 2021 included a gain on the sale of the Company’s former corporate headquarters of $12.3 million. Other operating income, net for the three and nine months ended September 30, 2020 included $69.9 million on nonrecurring gains on the sales of investment land and divested assets, which are recorded in the West Group.

Page 26 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(UNAUDITED) NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Continued)

1 5. | Other Nonoperating Income, Net

For the three and nine months ended September 30, 2021, the increase in other nonoperating income, net, was primarily attributable to lower pension expense of $3.9 million and $11.8 million, respectively, compared with the prior-year periods. For the nine months ended September 30, 2020, other nonoperating income, net, included $5.6 million of third-party railroad track maintenance expense and reflected a $8.9 million reduction in pension expense compared with the prior-year period.

1 6. | Subsequent Event

On October 1, 2021, the Company successfully completed its previously announced acquisition of the Lehigh West Region business for $2.3 billion in cash. The acquisition was primarily financed using proceeds from the issuance of publicly traded debt during the quarter ended September 30, 2021.

Lehigh West Region has a portfolio of 17 active aggregates quarries, two cement plants (with related distribution terminals), and targeted downstream operations in four states. These operations provide a new upstream, materials-led growth platform across several of the nation’s largest and fastest growing megaregions in California and Arizona, solidifying the Company’s position as a leading coast-to-coast aggregates producer.

The acquisition reflects a stock transaction where the Company acquired 100% of the voting interest of the legal entities that comprise the Lehigh West Region. For tax purposes, the acquisition is being treated as an asset transaction. The Company acquired inventories; property, plant and equipment; intangible assets; right-of-use assets; and other assets; and assumed accrued liabilities, asset retirement obligations, lease obligations and other liabilities. The Company did not acquire any of Lehigh West Region’s cash, cash equivalents or accounts receivable nor did it assume any accounts payable, outstanding debt, or pension obligation. The Company is in the process of determining the acquisition-date fair values of assets acquired and liabilities assumed, and as of November 2, 2021, the initial accounting for the business combination has not been completed.

Page 27 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

OVERVIEW

Martin Marietta Materials, Inc. (the Company or Martin Marietta) is a natural resource-based building materials company. As of September 30, 2021, the Company supplies aggregates (crushed stone, sand and gravel) through its network of approximately 320 quarries, mines and distribution yards in 26 states, Canada and The Bahamas. In the southwestern and western United States, Martin Marietta also provides cement and downstream products and services, namely, ready mixed concrete, asphalt and paving, in vertically-integrated structured markets where the Company has a leading aggregates position. The Company also provides asphalt in Minnesota, subsequent to a business combination in the quarter ended June 30, 2021. The Company’s heavy-side building materials are used in infrastructure, nonresidential and residential construction projects. Aggregates are also used in agricultural, utility and environmental applications and as railroad ballast. The aggregates, cement, ready mixed concrete and asphalt and paving product lines are reported collectively as the “Building Materials” business.

The Company’s Building Materials business includes two reportable segments: the East Group and the West Group.

BUILDING MATERIALS BUSINESS |
Reportable Segments |  | East Group |  | West Group
Operating Locations |  | Alabama, Florida, Georgia, Indiana, Iowa, Kansas, Kentucky, Maryland, Minnesota, Missouri, eastern Nebraska, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia, Nova Scotia and The Bahamas |  | Arkansas, Colorado, Louisiana, western Nebraska, Oklahoma, Texas, Utah, Washington and Wyoming
Product Lines |  | Aggregates and Asphalt |  | Aggregates, Cement, Ready Mixed Concrete, Asphalt and Paving
Facility Types |  | Quarries, Mines, Plants and Distribution Facilities |  | Quarries, Mines, Plants and Distribution Facilities
Modes of Transportation |  | Truck, Railcar and Ship |  | Truck and Railcar

The Building Materials business is significantly affected by weather patterns and seasonal changes. Production and shipment levels for aggregates, cement, ready mixed concrete and asphalt materials correlate with general construction activity levels, most of which occur in the spring, summer and fall. Thus, production and shipment levels vary by quarter. Operations concentrated in the northern and midwestern United States generally experience more severe winter weather conditions than operations in the southeast, southwest and west. Excessive rainfall, and conversely excessive drought, can also jeopardize production, shipments and profitability in all markets served by the Company. Due to the potentially significant impact of weather on the Company’s operations, current-period results are not necessarily indicative of expected performance for other interim periods or the full year.

The Company has a Magnesia Specialties business with manufacturing facilities in Manistee, Michigan, and Woodville, Ohio. The Magnesia Specialties business produces magnesia-based chemicals products used in industrial, agricultural and environmental applications and dolomitic lime sold primarily to customers in the steel and mining industries.

Page 28 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

CRITICAL ACCOUNTING POLICIES

The Company outlined its critical accounting policies in its Annual Report on Form 10-K for the year ended December 31, 2020. There were no changes to the Company’s critical accounting policies during the nine months ended September 30, 2021.

RESULTS OF OPERATIONS

Earnings before interest; income taxes; depreciation, depletion and amortization; the earnings/loss from nonconsolidated equity affiliates; acquisition-related expenses; and the impact of selling acquired inventory after its markup to fair value as part of acquisition accounting (Adjusted EBITDA) is an indicator used by the Company and investors to evaluate the Company’s operating performance from period to period. Adjusted EBITDA is not defined by accounting principles generally accepted in the United States and, as such, should not be construed as an alternative to net earnings, earnings from operations or cash provided by operating activities. However, the Company’s management believes that Adjusted EBITDA may provide additional information with respect to the Company’s performance and is a measure used by management to evaluate the Company’s performance. Because Adjusted EBITDA excludes some, but not all, items that affect net earnings and may vary among companies, Adjusted EBITDA as presented by the Company may not be comparable with similarly titled measures of other companies.

A reconciliation of net earnings attributable to Martin Marietta to Adjusted EBITDA is as follows:

|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Net Earnings Attributable to Martin Marietta |  | $ | 254.6 |  |  | $ | 294.4 |  |  | $ | 545.7 |  |  | $ | 538.0 |
Add back: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense, net of interest income |  |  | 44.2 |  |  |  | 28.6 |  |  |  | 99.6 |  |  |  | 89.3 |
Income tax expense for controlling interests |  |  | 63.6 |  |  |  | 81.5 |  |  |  | 141.7 |  |  |  | 143.0 |
Depreciation, depletion and amortization and earnings/loss from nonconsolidated equity affiliates |  |  | 112.1 |  |  |  | 97.2 |  |  |  | 314.2 |  |  |  | 287.5 |
Acquisition-related expenses |  |  | 7.4 |  |  |  | — |  |  |  | 18.0 |  |  |  | — |
Impact of selling acquired inventory after markup to fair value as a part of acquisition accounting |  |  | 8.1 |  |  |  | — |  |  |  | 15.7 |  |  |  | — |
Adjusted EBITDA |  | $ | 490.0 |  |  | $ | 501.7 |  |  | $ | 1,134.9 |  |  | $ | 1,057.8 |

Page 29 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

Mix-adjusted average selling price (mix-adjusted ASP) excludes the impacts of product, geographic and other mix from the current-period average selling price and is a non-GAAP measure. Mix-adjusted ASP is calculated by comparing current-period shipments to like-for-like shipments in the comparable prior period. Management uses this metric to evaluate the effectiveness of the Company’s pricing increases and believes this information is useful to investors as it provides same-on-same pricing trends. The following reconciles reported average selling price to mix-adjusted ASP and corresponding variances.

|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  |  |  | 2020 |
East Group - Aggregates: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reported average selling price |  | $ | 15.25 |  |  | $ | 15.19 |  |  | $ | 15.62 |  |  |  |  | $ | 15.26 |
Adjustment for unfavorable impact of product, geographic and other mix |  |  | 0.31 |  |  |  |  |  |  |  | 0.04 |  |  |  |  |  |  |
Mix-adjusted ASP |  | $ | 15.56 |  |  |  |  |  |  | $ | 15.66 |  |  |  |  |  |  |
Reported average selling price variance |  |  | 0.4 | % |  |  |  |  |  |  | 2.4 | % |  |  |  |  |  |
Mix-adjusted ASP variance |  |  | 2.5 | % |  |  |  |  |  |  | 2.6 | % |  |  |  |  |  |
Cement: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reported average selling price |  | $ | 122.91 |  |  | $ | 113.41 |  |  | $ | 120.29 |  |  |  |  | $ | 113.83 |
Adjustment for favorable impact of product, geographic and other mix |  |  | (1.97 | ) |  |  |  |  |  |  | (1.52 | ) |  |  |  |  |  |
Mix-adjusted ASP |  | $ | 120.94 |  |  |  |  |  |  | $ | 118.77 |  |  |  |  |  |  |
Reported average selling price variance |  |  | 8.4 | % |  |  |  |  |  |  | 5.7 | % |  |  |  |  |  |
Mix-adjusted ASP variance |  |  | 6.6 | % |  |  |  |  |  |  | 4.3 | % |  |  |  |  |  |

Page 30 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

Quarter Ended September 30, 2021

Financial highlights for the quarter ended September 30, 2021 (unless noted, all comparisons are versus the prior-year quarter):

| ♦ | Consolidated total revenues of $1.56 billion compared with $1.32 billion

| ♦ | Building Materials business products and services revenues of $1.39 billion compared with $1.19 billion

| ♦ | Magnesia Specialties products revenues of $71.9 million compared with $55.2 million

| ♦ | Consolidated gross profit of $441.9 million(1) compared with $404.5 million

| ♦ | Consolidated earnings from operations of $356.9 million(2) compared with $400.6 million(3)

| ♦ | Net earnings attributable to Martin Marietta of $254.6 million compared with $294.4 million(4)

| ♦ | Adjusted EBITDA of $490.0 million compared with $501.7 million(3)

| ♦ | Earnings per diluted share of $4.07(5) compared with $4.71(4)

(1) Includes $8.1 million of costs for selling acquired inventory after markup to fair value as a part of acquisition accounting

(2) Includes $8.1 million of costs for selling acquired inventory after markup to fair value as a part of acquisition accounting and $7.4 million of acquisition-related expenses

(3) Includes nonrecurring gains on sales of investment land and divested assets of $69.9 million

(4) Includes nonrecurring gains on sales of investment land and divested assets, net of tax, of $54.1 million, or $0.87 per diluted share

(5) Includes $0.18 per diluted share of costs for selling acquired inventory after markup to fair value as a part of acquisition accounting and of acquisition-related expenses

Page 31 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

The following tables present total revenues, gross profit (loss), selling, general and administrative (SG&A) expenses and earnings (loss) from operations data for the Company and its reportable segments by product line for the three months ended September 30, 2021 and 2020. In each case, the data is stated as a percentage of revenues of the Company or the relevant segment or product line, as the case may be.

|  | Three Months Ended September 30, |
|  | 2021 |  |  |  |  |  |  | 2020 |  |  |  |  |
|  | Amount |  |  |  |  |  |  | Amount |  |  |  |  |
|  | (Dollars in Millions) |
Total revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 569.7 |  |  |  |  |  |  | $ | 514.1 |  |  |  |  |
Asphalt |  |  | 80.2 |  |  |  |  |  |  |  | — |  |  |  |  |
Less: Interproduct revenues |  |  | (8.1 | ) |  |  |  |  |  |  | — |  |  |  |  |
East Group Total |  |  | 641.8 |  |  |  |  |  |  |  | 514.1 |  |  |  |  |
West Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  |  | 287.4 |  |  |  |  |  |  |  | 252.8 |  |  |  |  |
Cement |  |  | 132.3 |  |  |  |  |  |  |  | 115.6 |  |  |  |  |
Ready mixed concrete |  |  | 320.8 |  |  |  |  |  |  |  | 254.6 |  |  |  |  |
Asphalt and paving |  |  | 115.7 |  |  |  |  |  |  |  | 129.8 |  |  |  |  |
Less: Interproduct revenues |  |  | (107.2 | ) |  |  |  |  |  |  | (81.4 | ) |  |  |  |
West Group Total |  |  | 749.0 |  |  |  |  |  |  |  | 671.4 |  |  |  |  |
Products and services |  |  | 1,390.8 |  |  |  |  |  |  |  | 1,185.5 |  |  |  |  |
Freight |  |  | 88.1 |  |  |  |  |  |  |  | 75.0 |  |  |  |  |
Total Building Materials business |  |  | 1,478.9 |  |  |  |  |  |  |  | 1,260.5 |  |  |  |  |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products |  |  | 71.9 |  |  |  |  |  |  |  | 55.2 |  |  |  |  |
Freight |  |  | 6.5 |  |  |  |  |  |  |  | 5.7 |  |  |  |  |
Total Magnesia Specialties |  |  | 78.4 |  |  |  |  |  |  |  | 60.9 |  |  |  |  |
Total |  | $ | 1,557.3 |  |  |  |  |  |  | $ | 1,321.4 |  |  |  |  |

Page 32 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

|  | Three Months Ended September 30, |
|  | 2021 |  |  | 2020 |
|  | Amount |  |  | % of Revenues |  |  | Amount |  |  | % of Revenues |
|  | (Dollars in Millions) |
Gross profit (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 215.6 |  |  |  | 37.9 |  |  | $ | 206.1 |  |  |  | 40.1 |
Asphalt |  |  | 15.1 |  |  |  | 18.9 |  |  |  | — |  |  |  | — |
East Group Total |  |  | 230.7 |  |  |  | 36.0 |  |  |  | 206.1 |  |  |  | 40.1 |
West Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  |  | 77.3 |  |  |  | 26.9 |  |  |  | 73.0 |  |  |  | 28.9 |
Cement |  |  | 49.9 |  |  |  | 37.7 |  |  |  | 46.5 |  |  |  | 40.2 |
Ready mixed concrete |  |  | 31.4 |  |  |  | 9.8 |  |  |  | 24.7 |  |  |  | 9.7 |
Asphalt and paving |  |  | 23.8 |  |  |  | 20.6 |  |  |  | 32.6 |  |  |  | 25.2 |
West Group Total |  |  | 182.4 |  |  |  | 24.3 |  |  |  | 176.8 |  |  |  | 26.3 |
Products and services |  |  | 413.1 |  |  |  | 29.7 |  |  |  | 382.9 |  |  |  | 32.3 |
Freight |  |  | 1.3 |  |  |  |  |  |  |  | 0.9 |  |  |  |  |
Total Building Materials business |  |  | 414.4 |  |  |  | 28.0 |  |  |  | 383.8 |  |  |  | 30.4 |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products |  |  | 28.1 |  |  |  | 39.0 |  |  |  | 21.0 |  |  |  | 38.0 |
Freight |  |  | (1.1 | ) |  |  |  |  |  |  | (1.0 | ) |  |  |  |
Total Magnesia Specialties |  |  | 27.0 |  |  |  | 34.4 |  |  |  | 20.0 |  |  |  | 32.8 |
Corporate |  |  | 0.5 |  |  |  |  |  |  |  | 0.7 |  |  |  |  |
Total |  | $ | 441.9 |  |  |  | 28.4 |  |  | $ | 404.5 |  |  |  | 30.6 |

Aggregates Products Gross Profit Rollforward

The following presents a rollforward of aggregates products gross profit (dollars in millions):

Aggregates products gross profit, quarter ended September 30, 2020 |  | $ | 279.1 |
Volume |  |  | 17.8 |
Pricing |  |  | 28.7 |
Operational performance (1) |  |  | (32.7 | )
Change in aggregates products gross profit |  |  | 13.8 |
Aggregates products gross profit, quarter ended September 30, 2021 |  | $ | 292.9 |

(1) Inclusive of cost increases/decreases, product and geographic mix and other operating impacts

Page 33 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

|  | Three Months Ended September 30, |
|  | 2021 |  |  | 2020 |
|  | Amount |  |  | % of Revenues |  |  | Amount |  |  | % of Revenues |
|  | (Dollars in Millions) |
Selling, general & administrative expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  | $ | 26.5 |  |  |  |  |  |  | $ | 24.9 |  |  |  |  |
West Group |  |  | 34.2 |  |  |  |  |  |  |  | 34.2 |  |  |  |  |
Total Building Materials business |  |  | 60.7 |  |  |  |  |  |  |  | 59.1 |  |  |  |  |
Magnesia Specialties |  |  | 3.8 |  |  |  |  |  |  |  | 3.6 |  |  |  |  |
Corporate |  |  | 21.5 |  |  |  |  |  |  |  | 8.4 |  |  |  |  |
Total |  | $ | 86.0 |  |  |  | 5.5 |  |  | $ | 71.1 |  |  |  | 5.4 |
Earnings (Loss) from operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  | $ | 205.8 |  |  |  |  |  |  | $ | 181.4 |  |  |  |  |
West Group |  |  | 150.6 |  |  |  |  |  |  |  | 212.3 |  |  |  |  |
Total Building Materials business |  |  | 356.4 |  |  |  |  |  |  |  | 393.7 |  |  |  |  |
Magnesia Specialties |  |  | 23.1 |  |  |  |  |  |  |  | 16.4 |  |  |  |  |
Corporate |  |  | (22.6 | ) |  |  |  |  |  |  | (9.5 | ) |  |  |  |
Total |  | $ | 356.9 |  |  |  | 22.9 |  |  | $ | 400.6 |  |  |  | 30.3 |

Building Materials Business

The following tables present aggregates volume and pricing variance data and shipments data by segment:

|  | Three Months Ended |
|  | September 30, 2021 |
|  | Volume |  |  | Pricing |
Volume/Pricing variance(1) |  |  |  |  |  |  |  |
East Group |  |  | 10.1 | % |  |  | 0.4 | %
West Group |  |  | 10.4 | % |  |  | 2.8 | %
Total aggregates operations(2) |  |  | 10.2 | % |  |  | 1.2 | %
Organic aggregates operations(3) |  |  | 6.0 | % |  |  | 2.2 | %

Page 34 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

|  | Three Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |
|  | (Tons in Millions) |
Shipments |  |  |  |  |  |  |  |
East Group |  |  | 37.1 |  |  |  | 33.7 |
West Group |  |  | 19.9 |  |  |  | 18.1 |
Total aggregates operations(2) |  |  | 57.0 |  |  |  | 51.8 |

(1) Volume/pricing variances reflect the percentage increase/(decrease) from the comparable period in the prior year.

(2) Total aggregates operations include acquisitions from the date of acquisition and divestitures through the date of disposal.

(3) Organic aggregates operations exclude volume and pricing data for acquisitions that have not been included in prior-year operations for the comparable period and divestitures.

The following table presents shipments data by product line for the Building Materials business:

|  | Three Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |  |  | % Change |
Shipments |  |  |  |  |  |  |  |  |  |  |  |
Aggregates (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Tons to external customers |  |  | 52.0 |  |  |  | 48.1 |  |  |  |  |
Internal tons used in other product lines |  |  | 5.0 |  |  |  | 3.7 |  |  |  |  |
Total aggregates tons |  |  | 57.0 |  |  |  | 51.8 |  |  |  | 10.2 | %
Cement (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Tons to external customers |  |  | 0.7 |  |  |  | 0.7 |  |  |  |  |
Internal tons used in ready mixed concrete |  |  | 0.4 |  |  |  | 0.3 |  |  |  |  |
Total cement tons |  |  | 1.1 |  |  |  | 1.0 |  |  |  | 4.1 | %
Ready Mixed Concrete (in millions of cubic yards) |  |  | 2.7 |  |  |  | 2.2 |  |  |  | 23.2 | %
Asphalt (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Tons to external customers |  |  | 2.0 |  |  |  | 0.3 |  |  |  |  |
Internal tons used in paving business |  |  | 0.8 |  |  |  | 1.0 |  |  |  |  |
Total asphalt tons |  |  | 2.8 |  |  |  | 1.3 |  |  |  | 115.9 | %

Page 35 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

The average selling price by product line for the Building Materials business is as follows:

|  | Three Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |  |  | % Change |
Aggregates (per ton) |  | $ | 14.93 |  |  | $ | 14.75 |  |  |  | 1.2 | %
Cement (per ton) |  | $ | 122.91 |  |  | $ | 113.41 |  |  |  | 8.4 | %
Ready Mixed Concrete (per cubic yard) |  | $ | 116.75 |  |  | $ | 114.15 |  |  |  | 2.3 | %
Asphalt (per ton) |  | $ | 48.72 |  |  | $ | 49.56 |  |  |  | (1.7 | )%

Aggregates End-Use Markets

Aggregates shipments to the infrastructure market increased 5%, primarily driven by strong underlying demand. The infrastructure market accounted for 36% of third-quarter organic aggregates shipments.

Aggregates shipments to the nonresidential market increased 17%, driven by robust demand in heavy industrial projects of scale across our geographic footprint. The nonresidential market represented 35% of third-quarter organic aggregates shipments.

Aggregates shipments to the residential market increased 8%. Low available resale inventory and underbuilt single-family housing conditions continued to drive robust residential construction activity. The residential market accounted for 24% of third-quarter organic aggregates shipments.

The ChemRock/Rail market accounted for the remaining 5% of third-quarter organic aggregates shipments. Volumes to this end use increased 14%, driven by increased aglime shipments in Iowa.

Building Materials Business Product Lines

Third-quarter aggregates shipments, including shipments from acquired operations, grew 10.2% compared with prior-year quarter. Acquired operations have selling prices below the Company’s average which limited pricing growth to 1.2%. Organic aggregates shipments increased 6.0% while pricing increased 2.2%, reflecting a higher percentage of lower-priced base stone shipments and opportunistic sales of low-priced excess fill material. East Group shipments increased 10.1%, reflecting strong construction activity across all three primary end-use markets and shipments from the recently acquired Tiller operations. Pricing increased 0.4% in the East Group, inclusive of acquisitions. On a mix-adjusted basis, East Group pricing grew 2.5%. West Group shipments increased 10.4%, from strong underlying demand in both Texas and Colorado, improving energy-sector activity and shipments from the recent SCC acquisition in Texas. West Group pricing increased 2.8%. Aggregates product gross margin decreased 220 basis points to 34.2%, driven primarily by higher diesel costs, higher repairs, maintenance and contract service costs and an increase in cost of revenues from the impact of selling acquired inventory after its markup to fair value as part of acquisition accounting, partially offset by higher average selling prices

Cement shipments increased 4.1% benefitting from robust construction activity throughout the Texas Triangle and improving demand for specialty oil-well cement products. Cement pricing improved 8.4%, or 6.6% on a mix-adjusted basis, reflecting periodic price increases. Product gross margin declined 250 basis points to 37.7%, as higher energy, operating and raw materials costs more than offset pricing gains.

Ready mixed concrete shipments increased 23.2%, or 20.5% organically, reflecting the healthy Texas and Colorado demand environment. Pricing increased 2.3% in third quarter 2021 compared with third quarter 2020, following the implementation of mid-year price increases in Texas. Product gross margin increased modestly to 9.8%, as volume and

Page 36 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

pricing growth overcame higher raw material and diesel costs. Asphalt shipments increased 115.9% as incremental volume from the Tiller acquisition more than offset Colorado shipment declines resulting from the late-summer liquid asphalt shortages that have since been resolved. Asphalt pricing decreased 1.7%, reflecting a higher percentage of lower-priced shipments from the Company’s newly-acquired Minnesota business. Organic p ricing increased 1.2%. Asphalt and paving products and services gross margin decreased 530 basis points, driven by higher raw material costs and operational disruptions from the Colorado liquid asphalt shortage.

Magnesia Specialties Business

Magnesia Specialties third-quarter product revenues increased 30.3% to $71.9 million, reflecting improved demand for chemicals and lime products compared with a COVID-19-challenged prior-year quarter. Product gross profit was $28.1 million compared with $21.0 million. Product gross margin increased 100 basis points to 39.0% on strong volume and price increases. Third-quarter earnings from operations were $23.1 million in 2021 compared with $16.4 million in 2020.

Consolidated Operating Results

Consolidated SG&A for third quarter 2021 was 5.5% of total revenues compared with 5.4% in the prior-year quarter. During the third quarter 2021, the Company incurred $0.2 million in COVID-19-related expenses versus $1.3 million in the prior-year quarter. Prior year spending included stock build of enhanced personal protective equipment, as well as cleaning and sanitizing protocols across the Company’s operations, which are recorded in SG&A. The Company incurred acquisition-related expenses of $7.4 million in the quarter ended September 30, 2021 versus $0.4 million in the prior-year quarter. Earnings from operations for the quarter were $356.9 million in 2021 compared with $400.6 million in 2020.

Among other items, other operating income net, includes gains and losses on the sale of assets; recoveries and write-offs related to customer accounts receivable; rental, royalty and services income; accretion expense, depreciation expense and gains and losses related to asset retirement obligations. For the third quarter, consolidated other operating income, net, was $8.4 million in 2021 and $67.6 million in 2020. The income in 2020 included $69.9 million of nonrecurring gains on the sales of investment land and divested assets.

Other nonoperating income net, includes interest income; pension and postretirement benefit cost excluding service cost; foreign currency transaction gains and losses; equity earnings or losses from nonconsolidated affiliates and other miscellaneous income and expenses. For the third quarter, other nonoperating income, net, was $5.6 million and $4.0 million in 2021 and 2020, respectively. The 2021 amount reflected $3.9 million of lower pension expense.

Page 37 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

Nine Months Ended September 30, 2021

Financial highlights for the nine months ended September 30, 2021 (unless noted, all comparisons are versus the prior-year period):

| ♦ | Consolidated total revenues of $3.92 billion compared with $3.55 billion

| ♦ | Building Materials business products and services revenues of $3.47 billion compared with $3.16 billion

| ♦ | Consolidated gross profit of $1.00 billion(1) compared with $927.4 million

| ♦ | Consolidated earnings from operations of $763.7 million(2) compared with $764.8 million(3)

| ♦ | Net earnings attributable to Martin Marietta of $545.7 million compared with $538.0 million(4)

| ♦ | Adjusted EBITDA of $1.13 billion compared with $1.06 billion(3)

| ♦ | Earnings per diluted share of $8.72(5) compared with $8.61(4)

(1) Includes $15.7 million of costs for selling acquired inventory after markup to fair value as a part of acquisition accounting

(2) Includes $15.7 million of costs for selling acquired inventory after markup to fair value as a part of acquisition accounting and $18.0 million of acquisition-related expenses

(3) Includes nonrecurring gains on sales of investment land and divested assets of $69.9 million

(4) Includes nonrecurring gains on sales of investment land and divested assets, net of tax, of $54.1 million, or $0.87 per diluted share

(5) Includes $0.40 per diluted share of costs for selling acquired inventory after markup to fair value as a part of acquisition accounting and acquisition-related expenses

Page 38 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

The following tables present total revenues, gross profit (loss), SG&A expenses and earnings (loss) from operations data for the Company and its reportable segments by product line for the nine months ended September 30, 2021 and 2020. In each case, the data is stated as a percentage of revenues of the Company or the relevant segment or product line, as the case may be.

|  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |
|  | Amount |  |  | % of Revenues |  |  | Amount |  |  | % of Revenues |
|  | (Dollars in Millions) |
Total revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 1,496.5 |  |  |  |  |  |  | $ | 1,371.8 |  |  |  |  |
Asphalt |  |  | 127.3 |  |  |  |  |  |  |  | — |  |  |  |  |
Less: Interproduct revenues |  |  | (12.9 | ) |  |  |  |  |  |  | — |  |  |  |  |
East Group Total |  |  | 1,610.9 |  |  |  |  |  |  |  | 1,371.8 |  |  |  |  |
West Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  |  | 735.0 |  |  |  |  |  |  |  | 720.3 |  |  |  |  |
Cement |  |  | 358.4 |  |  |  |  |  |  |  | 331.7 |  |  |  |  |
Ready mixed concrete |  |  | 824.5 |  |  |  |  |  |  |  | 689.4 |  |  |  |  |
Asphalt and paving |  |  | 216.2 |  |  |  |  |  |  |  | 254.9 |  |  |  |  |
Less: Interproduct revenues |  |  | (272.2 | ) |  |  |  |  |  |  | (210.9 | ) |  |  |  |
West Group Total |  |  | 1,861.9 |  |  |  |  |  |  |  | 1,785.4 |  |  |  |  |
Products and services |  |  | 3,472.8 |  |  |  |  |  |  |  | 3,157.2 |  |  |  |  |
Freight |  |  | 219.8 |  |  |  |  |  |  |  | 212.9 |  |  |  |  |
Total Building Materials business |  |  | 3,692.6 |  |  |  |  |  |  |  | 3,370.1 |  |  |  |  |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products |  |  | 207.1 |  |  |  |  |  |  |  | 164.0 |  |  |  |  |
Freight |  |  | 17.9 |  |  |  |  |  |  |  | 16.2 |  |  |  |  |
Total Magnesia Specialties |  |  | 225.0 |  |  |  |  |  |  |  | 180.2 |  |  |  |  |
Total |  | $ | 3,917.6 |  |  |  |  |  |  | $ | 3,550.3 |  |  |  |  |

Page 39 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

|  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |
|  | Amount |  |  | % of Revenues |  |  | Amount |  |  | % of Revenues |
|  | (Dollars in Millions) |
Gross profit (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 514.3 |  |  |  | 34.4 |  |  | $ | 460.0 |  |  |  | 33.5 |
Asphalt |  |  | 26.9 |  |  |  | 21.1 |  |  |  | — |  |  |  | — |
East Group Total |  |  | 541.2 |  |  |  | 33.6 |  |  |  | 460.0 |  |  |  | 33.5 |
West Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  |  | 173.4 |  |  |  | 23.6 |  |  |  | 180.4 |  |  |  | 25.0 |
Cement |  |  | 101.3 |  |  |  | 28.3 |  |  |  | 117.2 |  |  |  | 35.3 |
Ready mixed concrete |  |  | 69.9 |  |  |  | 8.5 |  |  |  | 56.7 |  |  |  | 8.2 |
Asphalt and paving |  |  | 32.5 |  |  |  | 15.0 |  |  |  | 46.4 |  |  |  | 18.2 |
West Group Total |  |  | 377.1 |  |  |  | 20.3 |  |  |  | 400.7 |  |  |  | 22.4 |
Products and services |  |  | 918.3 |  |  |  | 26.4 |  |  |  | 860.7 |  |  |  | 27.3 |
Freight |  |  | 1.7 |  |  |  |  |  |  |  | 0.3 |  |  |  |  |
Total Building Materials business |  |  | 920.0 |  |  |  | 24.9 |  |  |  | 861.0 |  |  |  | 25.5 |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products |  |  | 84.4 |  |  |  | 40.7 |  |  |  | 65.3 |  |  |  | 39.8 |
Freight |  |  | (3.0 | ) |  |  |  |  |  |  | (3.2 | ) |  |  |  |
Total Magnesia Specialties |  |  | 81.4 |  |  |  | 36.2 |  |  |  | 62.1 |  |  |  | 34.5 |
Corporate |  |  | 0.3 |  |  |  |  |  |  |  | 4.3 |  |  |  |  |
Total |  | $ | 1,001.7 |  |  |  | 25.6 |  |  | $ | 927.4 |  |  |  | 26.1 |

Aggregates Products Gross Profit Rollforward

The following presents a rollforward of aggregates products gross profit (dollars in millions):

Aggregates products gross profit, nine months ended September 30, 2020 |  | $ | 640.4 |
Volume |  |  | 62.2 |
Pricing |  |  | 31.4 |
Operational performance (1) |  |  | (46.3 | )
Change in aggregates products gross profit |  |  | 47.3 |
Aggregates products gross profit, nine months ended September 30, 2021 |  | $ | 687.7 |

(1) Inclusive of cost increases/decreases, product and geographic mix and other operating impacts

Page 40 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

|  | Nine Months Ended September 30, |
|  | 2021 |  |  | 2020 |
|  | Amount |  |  | % of Total Revenues |  |  | Amount |  |  | % of Total Revenues |
|  | (Dollars in Millions) |
Selling, general & administrative expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  | $ | 77.0 |  |  |  |  |  |  | $ | 74.0 |  |  |  |  |
West Group |  |  | 101.1 |  |  |  |  |  |  |  | 100.2 |  |  |  |  |
Total Building Materials business |  |  | 178.1 |  |  |  |  |  |  |  | 174.2 |  |  |  |  |
Magnesia Specialties |  |  | 11.1 |  |  |  |  |  |  |  | 10.4 |  |  |  |  |
Corporate |  |  | 59.0 |  |  |  |  |  |  |  | 36.4 |  |  |  |  |
Total |  | $ | 248.2 |  |  |  | 6.3 |  |  | $ | 221.0 |  |  |  | 6.2 |
Earnings (Loss) from operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
East Group |  | $ | 465.3 |  |  |  |  |  |  | $ | 386.1 |  |  |  |  |
West Group |  |  | 284.2 |  |  |  |  |  |  |  | 368.2 |  |  |  |  |
Total Building Materials business |  |  | 749.5 |  |  |  |  |  |  |  | 754.3 |  |  |  |  |
Magnesia Specialties |  |  | 69.8 |  |  |  |  |  |  |  | 51.2 |  |  |  |  |
Corporate |  |  | (55.6 | ) |  |  |  |  |  |  | (40.7 | ) |  |  |  |
Total |  | $ | 763.7 |  |  |  | 19.5 |  |  | $ | 764.8 |  |  |  | 21.5 |

Building Materials Business

The following tables present aggregates volume and pricing variance data and shipments data by segment:

|  | Nine Months Ended |
|  | September 30, 2021 |
|  | Volume |  |  | Pricing |
Volume/Pricing variance(1) |  |  |  |  |  |  |  |
East Group |  |  | 6.5 | % |  |  | 2.4 | %
West Group |  |  | 0.0 | % |  |  | 1.9 | %
Total aggregates operations(2) |  |  | 4.1 | % |  |  | 2.4 | %
Organic aggregates operations(3) |  |  | 2.0 | % |  |  | 2.9 | %

Page 41 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

|  | Nine Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |
|  | (Tons in Millions) |
Shipments |  |  |  |  |  |  |  |
East Group |  |  | 95.2 |  |  |  | 89.4 |
West Group |  |  | 51.8 |  |  |  | 51.8 |
Total aggregates operations(2) |  |  | 147.0 |  |  |  | 141.2 |

(1) Volume/pricing variances reflect the percentage increase/(decrease) from the comparable period in the prior year.

(2) Total aggregates operations include acquisitions from the date of acquisition and divestitures through the date of disposal.

(3) Organic aggregates operations exclude volume and pricing data for acquisitions that have not been included in prior-year operations for the comparable period and divestitures.

The following table presents shipments data by product line for the Building Materials business:

|  | Nine Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |  |  | % Change |
Shipments |  |  |  |  |  |  |  |  |  |  |  |
Aggregates (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Tons to external customers |  |  | 135.2 |  |  |  | 131.9 |  |  |  |  |
Internal tons used in other product lines |  |  | 11.8 |  |  |  | 9.3 |  |  |  |  |
Total aggregates tons |  |  | 147.0 |  |  |  | 141.2 |  |  |  | 4.1 | %
Cement (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Tons to external customers |  |  | 1.8 |  |  |  | 2.0 |  |  |  |  |
Internal tons used in ready mixed concrete |  |  | 1.1 |  |  |  | 0.9 |  |  |  |  |
Total cement tons |  |  | 2.9 |  |  |  | 2.9 |  |  |  | 0.9 | %
Ready Mixed Concrete (in millions of cubic yards) |  |  | 7.2 |  |  |  | 6.1 |  |  |  | 18.7 | %
Asphalt (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Tons to external customers |  |  | 3.3 |  |  |  | 0.6 |  |  |  |  |
Internal tons used in paving business |  |  | 1.5 |  |  |  | 2.0 |  |  |  |  |
Total asphalt tons |  |  | 4.8 |  |  |  | 2.6 |  |  |  | 84.8 | %

Page 42 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

The average selling price by product line for the Building Materials business is as follows:

|  | Nine Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |  |  | % Change |
Aggregates (per ton) |  | $ | 15.08 |  |  | $ | 14.73 |  |  |  | 2.4 | %
Cement (per ton) |  | $ | 120.29 |  |  | $ | 113.83 |  |  |  | 5.7 | %
Ready Mixed Concrete (per cubic yard) |  | $ | 114.59 |  |  | $ | 113.75 |  |  |  | 0.7 | %
Asphalt (per ton) |  | $ | 48.77 |  |  | $ | 47.99 |  |  |  | 1.6 | %

Aggregates Product Line End-Use Markets

For the nine months ended September 30, 2021, organic aggregates shipments to the infrastructure market accounted for 34% of aggregates volumes and declined 5% compared to the prior-year period, primarily attributable to weather-impacted project delays, timing of projects and third-party logistical challenges.

Organic aggregates shipments to the nonresidential market increased 9%, driven by robust warehouse and data center activity. The nonresidential market represented 36% of year-to-date organic aggregates shipments.

Organic aggregates shipments to the residential market increased 9%, reflecting sustained robust housing demand and low available resale inventory. The residential market accounted for 25% of year-to-date organic aggregates shipments.

The ChemRock/Rail market accounted for the remaining 5% of year-to-date organic aggregates shipments. Volumes to this end use decreased 10%, driven by lower ballast shipments to Class I railroads.

Building Materials Business Product Lines

For the nine months ended September 30, 2021, aggregates shipments increased 4.1%, reflecting strong construction activity in the Carolinas, Georgia, Florida and Maryland. Pricing increased 2.4% compared with the prior-year period which offset higher energy and operating costs leading to a modest 20-basis-point improvement in aggregates product gross margin to 30.8%. Aggregates shipments increased 2.0% and pricing increased 2.9% on an organic basis.

For the nine months ended September 30, 2021, cement shipments increased 0.9% and pricing increased 5.7% compared with the prior-year period. On a mix-adjusted basis, pricing increased 4.3%. Higher kiln maintenance costs, storm-related incremental costs and inefficiencies caused by weather-related shut downs, coupled with an increase in energy and raw material costs contributed to a 700-basis-point decline in cement product gross margin to 28.3%.

Ready mixed concrete shipments increased 18.7%, or 14.2% organically, driven by higher volumes from large projects and continued strong demand. Ready mixed concrete pricing for the nine months ended September 30, 2021 increased 0.7%. Asphalt shipments improved 84.8% compared with the prior-year period, attributable to incremental volumes from the acquired Tiller operations. Asphalt pricing increased 1.6% reflecting increased pricing from organic asphalt operations.

Magnesia Specialties Business

For the nine months ended September 30, 2021, Magnesia Specialties reported product revenues of $207.1 million compared with $164.0 million for the prior-year period reflecting improved demand for chemicals and lime products compared with a COVID-19-challenged prior-year period. Product gross profit was $84.4 million compared with $65.3 million, primarily driven by higher volumes and revenues from improving domestic steel production and global demand for magnesia chemicals products. Product line gross margin for the nine months ended September 30, 2021, was 40.7%,

Page 43 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

a 90-basis-point increase versus the prior-year period. Earnings from operations were $69.8 million compared with $51.2 million.

Consolidated Operating Results

For the nine months ended September 30, 2021, consolidated SG&A was 6.3% of total revenues compared with 6.2% in 2020. During the first nine months of 2021, the Company incurred $1.8 million in COVID-19-related expenses compared with $4.8 million in the prior-year period for enhanced cleaning and sanitizing protocols across the Company’s operations, which are recorded in SG&A. The Company incurred $18.0 million of acquisition-related expenses for the nine months ended September 30, 2021. Earnings from operations for the nine months ended September 30 were $763.7 million in 2021 compared with $764.8 million in 2020.

For the nine months ended September 30, consolidated other operating income, net, was income of $28.2 million and income of $59.6 million in 2021 and 2020, respectively. The 2021 income includes the $12.3 million gain on the sale of the former corporate headquarters. The 2020 amount included $69.9 million of nonrecurring gains on the sales of investment land and divested assets.

For the nine months ended September 30, other nonoperating income, net, was $23.8 million in 2021 and $5.9 million in 2020. The 2021 amount reflected $11.8 million of lower pension expense compared with the prior year. The 2020 amount included an expense of $5.6 million to finance third-party railroad track maintenance.

Income Tax Expense

For the nine months ended September 30, 2021, the effective income tax rate was 20.6%, which included a $2.9 million discrete benefit for research and development tax credits. For the nine months ended September 30, 2020, the effective income tax rate of 21.0% reflected a $6.9 million discrete benefit from financing third-party railroad track maintenance. In exchange, the Company received a federal income tax credit and deduction.

LIQUIDITY AND CAPITAL RESOURCES

Cash provided by operating activities for the nine months ended September 30, 2021 and 2020 was $780.3 million and $684.0 million, respectively. Operating cash flow is primarily derived from consolidated net earnings before deducting depreciation, depletion and amortization, and the impact of changes in working capital. Depreciation, depletion and amortization were as follows:

|  | Nine Months Ended |
|  | September 30, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Depreciation |  | $ | 262.1 |  |  | $ | 251.1 |
Depletion |  |  | 29.5 |  |  |  | 26.2 |
Amortization |  |  | 28.4 |  |  |  | 14.9 |
Total |  | $ | 320.0 |  |  | $ | 292.2 |

The seasonal nature of construction activity impacts the Company’s interim operating cash flow when compared with the full year. Full-year 2020 net cash provided by operating activities was $1.05 billion.

Page 44 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

During the nine months ended September 30, 2021 and 2020, the Company paid $321.3 million and $250.8 million, respectively, for capital investments.

The Company can repurchase its common stock through open-market purchases pursuant to authority granted by its Board of Directors or through private transactions at such prices and upon such terms as the Chief Executive Officer deems appropriate. The Company did not repurchase any shares of common stock during the first nine months of 2021. At September 30, 2021, 13,520,952 shares of common stock can be purchased under the Company’s repurchase authorization.

On April 30, 2021, the Company completed the acquisition of Tiller, a leading aggregates and hot mix asphalt supplier in the Minneapolis/St. Paul region, one of the largest and fastest growing midwestern metropolitan areas. The acquired operations complement the Company’s existing Central Division’s product offerings in the surrounding areas. The Company financed the acquisition using available cash and borrowings under its credit facilities.

On July 30, 2021, the Company acquired assets of SCC. SCC is a leading producer of recycled concrete in the Houston area, one of the country’s largest addressable aggregates markets. Recycled concrete is principally used as a base aggregates product in infrastructure, commercial and residential construction applications. The Company financed the acquisition using available cash.

On July 2, 2021, the Company issued $700 million aggregate principal amount of 0.650% Senior Notes due 2023 (the 0.650% Senior Notes), $900 million aggregate principal amount of 2.400% Senior Notes due 2031 (the 2.400% Senior Notes) and $900 million aggregate principal amount of 3.200% Senior Notes due 2051 (the 3.200% Senior Notes) and, together with the 0.650% Senior Notes and the 2.400% Senior Notes (the Senior Notes). The Company used the net proceeds for the acquisition of the Lehigh West Region business, which closed on October 1, 2021, and for general corporate purposes. See Note 6 for further information regarding the Senior Notes.

The Company, through a wholly-owned special-purpose subsidiary, has a $400 million trade receivable securitization facility (the Trade Receivable Facility). On September 22, 2021, the Company extended the maturity of the Trade Receivable Facility to September 21, 2022. The Trade Receivable Facility contains a cross-default provision to the Company’s other debt agreements. Subject to certain conditions, including lenders providing the requisite commitments, the Trade Receivable Facility may be increased to a borrowing base not to exceed $500 million.

The Company has a $700 million five-year senior unsecured revolving facility (the Revolving Facility), which expires on December 5, 2024. The Revolving Facility requires the Company’s ratio of consolidated debt-to-consolidated EBITDA, as defined, for the trailing-twelve-month period (the Ratio) to not exceed 3.50x as of the end of any fiscal quarter, provided that the Company may exclude from the Ratio debt incurred in connection with certain acquisitions during the quarter or the three preceding quarters so long as the Ratio calculated without such exclusion does not exceed 3.75x. Additionally, if there are no amounts outstanding under the Revolving Facility and the Trade Receivable Facility, consolidated debt, including debt for which the Company is a co-borrower, may be reduced by the Company’s unrestricted cash and cash equivalents in excess of $50 million, such reduction not to exceed $200 million, for purposes of the covenant calculation.

The Ratio is calculated as debt, including debt for which the Company is a co-borrower, divided by consolidated EBITDA, as defined by the Company’s Revolving Facility, for the trailing-twelve months. Consolidated EBITDA is generally defined as earnings before interest expense, income tax expense, and depreciation and amortization expense. Additionally, stock-based compensation expense is added back and interest income is deducted in the calculation of consolidated EBITDA. During periods that include an acquisition, pre-acquisition adjusted EBITDA of the acquired company is added to consolidated EBITDA as if the acquisition occurred on the first day of the calculation period. Certain other nonrecurring items, if they occur, can affect the calculation of consolidated EBITDA.

Page 45 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

At September 30, 2021, the Company’s ratio of consolidated net debt-to-consolidated EBITDA, as defined by the Company’s Revolving Facility, for the trailing-twelve months was 3.49 times and was calculated as follows:

|  | October 1, 2020 to |
|  | September 30, 2021 |
|  | (Dollars in Millions) |
Earnings from continuing operations attributable to Martin Marietta |  | $ | 728.7 |
Add back: |  |  |  |
Interest expense |  |  | 128.3 |
Income tax expense |  |  | 166.8 |
Depreciation, depletion and amortization expense |  |  | 416.7 |
Stock-based compensation expense |  |  | 40.6 |
Acquisition-related expenses |  |  | 33.7 |
EBITDA related to acquired operations (Pre-acquisition October 1, 2020 to July 31, 2021)(1) |  |  | 8.9 |
Deduct: |  |  |  |
Interest income |  |  | (0.3 | )
Consolidated EBITDA, as defined by the Company’s Revolving Facility |  | $ | 1,523.4 |
Consolidated net debt, as defined and including debt for which the Company is a co-borrower, at September 30, 2021 |  | $ | 5,319.5 |
Consolidated net debt-to-consolidated EBITDA, as defined by the Company’s Revolving Facility, at September 30, 2021 for the trailing-twelve months EBITDA |  | 3.49 times |
(1) Inclusive of one-time, non-recurring and transaction-related expenses. |  |  |  |

In the event of a default on the Ratio, the lenders can terminate the Revolving Facility and Trade Receivable Facility and declare any outstanding balances as immediately due. There was $20 million outstanding under the Trade Receivable Facility and no borrowings under the Revolving Facility as of September 30, 2021.

Cash on hand, along with the Company’s projected internal cash flows and availability of financing resources, including its access to debt and equity capital markets, is expected to continue to be sufficient to provide the capital resources necessary to support anticipated operating needs, cover debt service requirements, address near-term debt maturities, meet capital expenditures and discretionary investment needs, fund certain acquisition opportunities that may arise, allow the repurchase of shares of the Company’s common stock and allow for payment of dividends for the foreseeable future. At September 30, 2021, the Company had $1,077.4 million of unused borrowing capacity under its Revolving Facility and Trade Receivable Facility, subject to complying with the related leverage covenant. Historically, the Company has successfully extended the maturity dates of these credit facilities. Further, as of September 30, 2021, the Company does not have any publicly-traded debt that matures prior to 2023.

The Coronavirus Aid, Relief and Economic Security Act (CARES Act) was signed into law in March 2020 and provided liquidity support for businesses. Through the CARES Act, the Company deferred payment of $27.6 million, representing the 6.2% employer share of Social Security taxes for the period from March 27, 2020 through December 31, 2020. Half of the deferred obligation will be due December 31, 2021 and the remaining half will be due December 31, 2022. There will be no interest assessed on amounts deferred.

Page 46 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

TRENDS AND RISKS

The Company outlined the risks associated with its business in its Annual Report on Form 10-K for the year ended December 31, 2020. Management continues to evaluate its exposure to all operating risks on an ongoing basis.

OTHER MATTERS

If you are interested in Martin Marietta stock, management recommends that, at a minimum, you read the Company’s current annual report and Forms 10-K, 10-Q and 8-K reports to the Securities and Exchange Commission (SEC) over the past year. The Company’s recent proxy statement for the annual meeting of shareholders also contains important information. These and other materials that have been filed with the SEC are accessible through the Company’s website at www.martinmarietta.com and are also available at the SEC’s website at www.sec.gov. You may also write or call the Company’s Corporate Secretary, who will provide copies of such reports.

Investors are cautioned that all statements in this Form 10-Q that relate to the future involve risks and uncertainties, and are based on assumptions that the Company believes in good faith are reasonable but which may be materially different from actual results. These statements, which are forward-looking statements under the Private Securities Litigation Reform Act of 1995, provide the investor with the Company’s expectations or forecasts of future events. You can identify these statements by the fact that they do not relate only to historical or current facts. They may use words such as “anticipate,” “expect,” “should be,” “believe,” “will,” and other words of similar meaning in connection with future events or future operating or financial performance. Any or all of management’s forward-looking statements here and in other publications may turn out to be wrong.

The Company’s outlook is subject to various risks and uncertainties, and is based on assumptions that the Company believes in good faith are reasonable but which may be materially different from actual results. Factors that the Company currently believes could cause actual results to differ materially from the forward-looking statements in this Form 10-Q (including the outlook) include, but are not limited to: the ability of the Company to face challenges, including those posed by the COVID-19 pandemic and implementation of any such related response plans; fluctuations in COVID-19 cases in the United States and the extent that geography of outbreak primarily matches the regions in which the Company’s Building Materials business principally operates; the resiliency and potential declines of the Company’s various construction end-use markets; the potential negative impact of the COVID-19 pandemic on the Company’s ability to continue supplying heavy-side building materials and related services at normal levels or at all in the Company’s key regions; the duration, impact and severity of the impact of the COVID-19 pandemic on the Company, including the markets in which the Company does business, its suppliers, customers or other business partners as well as the Company’s employees; the economic impact of government responses to the pandemic; the performance of the United States economy, including the impact on the economy of the COVID-19 pandemic and governmental orders restricting activities imposed to prevent further outbreak of COVID-19; shipment declines resulting from economic events beyond the Company’s control; a widespread decline in aggregates pricing, including a decline in aggregates shipment volume negatively affecting aggregates price; the history of both cement and ready mixed concrete being subject to significant changes in supply, demand and price fluctuations; the termination, capping and/or reduction or suspension of the federal and/or state gasoline tax(es) or other revenue related to public construction; the level and timing of federal, state or local transportation or infrastructure or public projects funding, most particularly in Texas, Colorado, North Carolina, Georgia, Iowa, Florida, Minnesota and Maryland; the impact of governmental orders restricting activities imposed to prevent further outbreak of COVID-19 on travel, potentially reducing state fuel tax revenues used to fund highway projects; the United States Congress’ inability to reach agreement among themselves or with the Administration on policy issues that impact the federal budget; the ability of states and/or other entities to finance approved projects either with tax revenues or alternative financing structures; levels of construction spending in

Page 47 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

the markets the Company serves; a reduction in defense spending and the subsequent impact on construction activity on or near military bases; a decline in the commercial component of the nonresidential construction market, notably office and retail space, including a decline resulting from economic distress related to the COVID-19 pandemic; a decline in energy-related construction activity resulting from a sustained period of low global oil prices or changes in oil production patterns or capital spending, particularly in Texas; increasing residential mortgage interest rates and other factors that could result in a slowdown in residential construction; unfavorable weather conditions, particularly Atlantic Ocean and Gulf of Mexico hurricane activity, the late start to spring or the early onset of winter and the impact of a drought or excessive rainfall in the markets served by the Company, any of which can significantly affect production schedules, volumes, product and/or geographic mix and profitability; whether the Company’s operations will continue to be treated as “essential” operations under applicable government orders restricting business activities imposed to prevent further outbreak of COVID-19 or, even if so treated, whether site-specific health and safety concerns might otherwise require certain of the Company’s operations to be halted for some period of time; the volatility of fuel costs, particularly diesel fuel, and the impact on the cost, or the availability generally, of other consumables, namely steel, explosives, tires and conveyor belts, and with respect to the Company’s Magnesia Specialties business, natural gas; continued increases in the cost of other repair and supply parts; construction labor shortages and/or supply‐chain challenges; unexpected equipment failures, unscheduled maintenance, industrial accident or other prolonged and/or significant disruption to production facilities; increasing governmental regulation, including environmental laws; the failure of relevant government agencies to implement expected regulatory reductions; transportation availability or a sustained reduction in capital investment by the railroads, notably the availability of railcars, locomotive power and the condition of rail infrastructure to move trains to supply the Company’s Texas, Colorado, Florida, Carolinas and Gulf Coast markets, including the movement of essential dolomitic lime for magnesia chemicals to the Company’s plant in Manistee, Michigan and its customers; increased transportation costs, including increases from higher or fluctuating passed-through energy costs or fuel surcharges, and other costs to comply with tightening regulations, as well as higher volumes of rail and water shipments (leading to reduced profit margins when compared with aggregates moved by truck); availability of trucks and licensed drivers for transport of the Company’s materials; availability and cost of construction equipment in the United States; weakening in the steel industry markets served by the Company’s dolomitic lime products; trade disputes with one or more nations impacting the U.S. economy, including the impact of tariffs on the steel industry; unplanned changes in costs or realignment of customers that introduce volatility to earnings, including the Magnesia Specialties business; proper functioning of information technology and automated operating systems to manage or support operations; inflation and its effect on both production and interest costs; the concentration of customers in construction markets and the increased risk of potential losses on customer receivables; the impact of the level of demand in the Company’s end-use markets, production levels and management of production costs on the operating leverage and therefore profitability of the Company; the possibility that the expected synergies from acquisitions will not be realized or will not be realized within the expected time period, including achieving anticipated profitability to maintain compliance with the Company’s leverage ratio debt covenant; changes in tax laws, the interpretation of such laws and/or administrative practices, including acquisitions or divestitures, that would increase the Company’s tax rate; violation of the Company’s debt covenant if price and/or volumes return to previous levels of instability; downward pressure on the Company’s common stock price and its impact on goodwill impairment evaluations; the possibility of a reduction of the Company’s credit rating to non-investment grade; and other risk factors listed from time to time found in the Company’s filings with the SEC.

You should consider these forward-looking statements in light of risk factors discussed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 and other periodic filings made with the SEC. All of the Company’s forward-looking statements should be considered in light of these factors. In addition, other risks and uncertainties not presently known to the Company or that the Company considers immaterial could affect the accuracy of its forward-

Page 48 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter September 30, 2021

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

RESULTS OF OPERATIONS

(Continued)

looking statements, or adversely affect or be material to the Company. The Company assumes no obligation to update any such forward-looking statements.

INVESTOR ACCESS TO COMPANY FILINGS

Shareholders may obtain, without charge, a copy of Martin Marietta’s Annual Report on Form 10-K, as filed with the Securities and Exchange Commission for the fiscal year ended December 31, 2020, by writing to:

Martin Marietta

Attn: Corporate Secretary

4123 Parklake Avenue

Raleigh, North Carolina 27612

Additionally, Martin Marietta’s Annual Report, press releases and filings with the Securities and Exchange Commission, including Forms 10-K, 10-Q, 8-K and 11-K, can generally be accessed via the Company’s website. Filings with the Securities and Exchange Commission accessed via the website are available through a link with the Electronic Data Gathering, Analysis, and Retrieval (EDGAR) system. Accordingly, access to such filings is available upon EDGAR placing the related document in its database. Investor relations contact information is as follows:

Telephone: (919) 783-4691

Website address: www.martinmarietta.com

Information included on the Company’s website is not incorporated into, or otherwise creates a part of, this report.

Page 49 of 54

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

The COVID-19 pandemic continues to impact the global and domestic economy. The Company’s operations have to date been considered “essential” operations under applicable governmental orders that restrict activities in an effort to prevent further outbreak of COVID-19. As such, the Company is conducting business with certain modifications, including engaging medical experts to screen those who may have had COVID-19 exposure before allowing access to sites; enhancing the cleaning and disinfection of equipment and common areas, including engaging third-party specialists to disinfect work spaces; and issuing a quarantine policy requiring employees with COVID-19 symptoms to stay home for at least 10 days, among other things. The Company continues to actively monitor the situation and may take further actions that alter its business operations including any that may be required by federal, state or local authorities or that the Company determines are in the best interests of its employees, customers, suppliers, vendors, communities and other stakeholders.

Demand for aggregates products, particularly in the infrastructure construction market, is affected by federal, state and local budget and deficit issues. Remote working trends are reducing miles driven, which is having a negative impact on various revenue streams that fund roadway projects. Further, delays or cancellations of projects in the nonresidential and residential construction markets, which combined accounted for 61% of aggregates shipments for the nine months ended September 30, 2021, could occur if companies and consumers are unable to obtain financing for construction projects or if consumer confidence continues to be eroded by economic uncertainty.

The Company’s operations are highly dependent upon the interest rate-sensitive construction and steelmaking industries. Consequently, these marketplaces could experience lower levels of economic activity in an environment of rising interest rates or higher borrowing costs.

Aside from these inherent risks from within its operations, the Company’s earnings are also affected by changes in short-term interest rates and changes in enacted tax laws.

Variable-Rate Borrowing Facilities. At September 30, 2021, the Company had a $700 million Revolving Facility and a $400 million Trade Receivable Facility. Borrowings under these facilities bear interest at a variable interest rate. A hypothetical 100-basis-point increase in interest rates on borrowings of $20 million, which was the collective outstanding balance at September 30, 2021, would increase interest expense by $0.2 million on an annual basis.

Pension Expense. The Company’s results of operations are affected by its pension expense. Assumptions that affect pension expense include the discount rate and, for the qualified defined benefit pension plan only, the expected long-term rate of return on assets. Therefore, the Company has interest rate risk associated with these factors. The impact of hypothetical changes in these assumptions on the Company’s annual pension expense is discussed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. As of September 30, 2021, discount rates were approximately 40 basis points higher than the rate selected as of December 31, 2020, the most recent measurement date. Unless an event requires an interim remeasurement, the Company will next remeasure its pension obligation and funded status as of December 31, 2021. Changes in the discount rate and pension asset values will impact 2022 pension expense.

Income Tax. Any changes in enacted tax laws (such as the recent U.S. tax legislation), rules or regulatory or judicial interpretations; or any change in the pronouncements relating to accounting for income taxes could materially impact our effective tax rate, tax payments, financial condition and results of operations.

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

FORM 10-Q

For the Quarter Ended September 30, 2021

(Continued)

Energy Costs. Energy costs, including diesel fuel, natural gas, electricity, coal and liquid asphalt, represent significant production costs of the Company. The cement operations and Magnesia Specialties business have fixed price agreements covering a majority of their 2021 coal requirements. Energy expense for the nine months ended September 30, 2021 inc reased approximately 29% compared with the prior-year period, due to increased natural gas, diesel, electricity and gasoline costs in 202 1; however, any future energy prices cannot be reliably predicted. A hypothetical price change of 2 9% would change full year 2021 energy expense by $67 million as compared with 2020, assuming constant volumes.

Commodity Risk. Cement is a commodity, and competition is based principally on price, which is highly sensitive to changes in supply and demand. Prices are often subject to material changes in response to relatively minor fluctuations in supply and demand, general economic conditions and other market conditions beyond the Company’s control. Increases in the production capacity of industry participants or increases in cement imports tend to create an oversupply of such products leading to an imbalance between supply and demand, which can have a negative impact on product prices. There can be no assurance that prices for products sold will not decline in the future or that such declines will not have a material adverse effect on the Company’s business, financial condition and results of operations. Assuming full- year 2020 cement product revenues of $453 million, a hypothetical 10% change in sales price would impact cement product revenues by $45.3 million.

Cement is a key raw material in the production of ready mixed concrete. The Company may be unable to pass along increases in the costs of cement and raw materials to customers in the form of price increases for the Company’s products. A hypothetical 10% change in cement costs in 2021 compared with 2020, assuming constant volumes, would change the ready mixed concrete product line cost of revenues by $25.5 million. While increases in cement pricing may negatively impact the profitability of the ready mixed concrete operations, the cement business would benefit, although the positive impact may not reflect a direct correlation to the impact on the ready mixed concrete business.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures. As of September 30, 2021, an evaluation was performed under the supervision and with the participation of the Company’s management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and the operation of the Company’s disclosure controls and procedures. Based on that evaluation, the Company’s management, including the Chief Executive Officer and Chief Financial Officer, concluded that the Company’s disclosure controls and procedures were effective as of September 30, 2021. There were no changes in the Company’s internal control over financial reporting during the most recently completed fiscal quarter that materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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Item 1. Legal Proceedings.

See Note 10 Commitments and Contingencies, Legal and Administrative Proceedings, of this Form 10-Q.

Item 1A. Risk Factors.

Reference is made to Part I. Item 1A. Risk Factors and Forward-Looking Statements of the Martin Marietta Annual Report on Form 10-K for the year ended December 31, 2020.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

ISSUER PURCHASES OF EQUITY SECURITIES

|  |  |  |  |  |  |  |  |  | Total Number of Shares |  |  | Maximum Number of |
|  |  |  |  |  |  |  |  |  | Purchased as Part of |  |  | Shares that May Yet |
|  | Total Number of |  |  | Average Price |  |  | Publicly Announced |  |  | be Purchased Under |
Period |  | Shares Purchased |  |  | Paid per Share |  |  | Plans or Programs |  |  | the Plans or Programs |
July 1, 2021 - July 31, 2021 |  |  | — |  |  | $ | — |  |  |  | — |  |  |  | 13,520,952 |
August 1, 2021 - August 31, 2021 |  |  | — |  |  | $ | — |  |  |  | — |  |  |  | 13,520,952 |
September 1, 2021 - September 30, 2021 |  |  | — |  |  | $ | — |  |  |  | — |  |  |  | 13,520,952 |
Total |  |  | — |  |  |  |  |  |  |  | — |  |  |  |  |

Reference is made to the press release dated February 10, 2015 for the December 31, 2014 fourth-quarter and full-year results and announcement of the share repurchase program. The Company’s Board of Directors authorized a maximum of 20 million shares to be repurchased under the program. The program does not have an expiration date.

Item 4. Mine Safety Disclosures.

The information concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K (17 CFR 229.104) is included in Exhibit 95 to this Quarterly Report on Form 10-Q.

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It em 6. Exhibits.

Exhibit No. |  | Document
31.01 |  | Certification dated November 2, 2021 of Chief Executive Officer pursuant to Securities and Exchange Act of 1934 Rule 13a-14 as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.02 |  | Certification dated November 2, 2021 of Chief Financial Officer pursuant to Securities and Exchange Act of 1934 Rule 13a-14 as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.01 |  | Written Statement dated November 2, 2021 of Chief Executive Officer required by 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.02 |  | Written Statement dated November 2, 2021 of Chief Financial Officer required by 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
95 |  | Mine Safety Disclosures
101.INS |  | Inline XBRL Instance Document – The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH |  | Inline XBRL Taxonomy Extension Schema Document
101.CAL |  | Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB |  | Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE |  | Inline XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF |  | Inline XBRL Taxonomy Extension Definition Linkbase
104 |  | Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

|  |  | MARTIN MARIETTA MATERIALS, INC.
|  |  | (Registrant)
Date: November 2, 2021 | By: |  | /s/ James A. J. Nickolas
|  |  | James A. J. Nickolas
|  |  | Sr. Vice President and
|  |  | Chief Financial Officer

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