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. The Company supplies aggregates
(crushed stone, sand and gravel) through its network of approximately 310
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,         Arkansas, Colorado, Louisiana,
                                     Indiana, Iowa,                          western
                               Kansas, Kentucky, Maryland,       Nebraska, Oklahoma, Texas, Utah,
                              Minnesota, Missouri, eastern            Washington and Wyoming
                                        Nebraska,
                                  North Carolina, Ohio,
                                      Pennsylvania,
                               South Carolina, Tennessee,
                                        Virginia,
                             West Virginia, Nova Scotia and
                                       The Bahamas

      Product Lines              Aggregates and Asphalt             Aggregates, Cement, Ready
                                                                   Mixed Concrete, Asphalt and
                                                                              Paving

     Facility Types            Quarries, Mines, Plants and         Quarries, Mines, Plants and
                                 Distribution Facilities             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 and paving 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 and
southwest. 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 52

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 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 six months ended June 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               Six Months Ended
                                                June 30,                        June 30,
                                          2021             2020           2021            2020
                                                         (Dollars in Millions)
Net Earnings Attributable to Martin
Marietta                               $     225.8      $    217.6     $     291.1     $    243.5
Add back:
Interest expense, net of interest
income                                        28.2            31.0            55.5           60.7
Income tax expense for controlling
interests                                     62.2            61.4            78.1           61.5
Depreciation, depletion and
amortization and
  earnings/loss from nonconsolidated
equity
  affiliates                                 106.1            97.0           201.9          190.3
Acquisition-related expenses                   9.3               -            10.6              -
Impact of selling acquired inventory
after markup
  to fair value as a part of
acquisition accounting                         7.6               -             7.6              -
Adjusted EBITDA                        $     439.2      $    407.0     $     644.8     $    556.0








                                 Page 29 of 52

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 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-to-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             Six Months Ended
                                                June 30,                      June 30,
                                          2021            2020           2021           2020
West Group - Aggregates:
Reported average selling price         $     14.03     $    13.93     $    13.93     $    13.75
Adjustment for unfavorable impact of
product,
  geographic and other mix                    0.24                          0.18
Mix-adjusted ASP                       $     14.27                    $    14.11

Reported average selling price
variance                                       0.7 %                         1.3 %
Mix-adjusted ASP variance                      2.4 %                         2.6 %

Cement:
Reported average selling price         $    122.11     $   114.34     $   118.80     $   114.06
Adjustment for favorable impact of
product,
  geographic and other mix                   (2.97 )                       (1.30 )
Mix-adjusted ASP                       $    119.14                    $   117.50

Reported average selling price
variance                                       6.8 %                         4.2 %
Mix-adjusted ASP variance                      4.2 %                         3.0 %



Quarter Ended June 30, 2021

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

? Consolidated total revenues of $1.38 billion compared with $1.27 billion

? Building Materials business products and services revenues of $1.23 billion

compared with $1.14 billion

? Magnesia Specialties products revenues of $70.0 million compared with $48.9

million

? Consolidated gross profit of $385.1 million compared with $380.5 million

? Consolidated earnings from operations of $307.5 million compared with $306.4

million

? Net earnings attributable to Martin Marietta of $225.8 million compared with

$217.6 million


  ? Adjusted EBITDA of $439.2 million compared with $407.0 million


  ? Earnings per diluted share of $3.61 compared with $3.49





                                 Page 30 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 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 June 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 June 30,
                                       2021                  2020
                                      Amount                Amount
                                             (Dollars in Millions)
Total revenues:
Building Materials business:
Products and services
East Group
Aggregates                          $    554.2             $   499.7
Asphalt                                   47.1                     -
Less: Interproduct revenues               (4.8 )                   -
East Group Total                         596.5                 499.7
West Group
Aggregates                               247.6                 255.2
Cement                                   116.5                 109.5
Ready mixed concrete                     268.4                 245.1
Asphalt and paving                        88.2                 107.0
Less: Interproduct revenues              (91.9 )               (75.9 )
West Group Total                         628.8                 640.9
Products and services                  1,225.3               1,140.6
Freight                                   76.8                  76.4
Total Building Materials business      1,302.1               1,217.0
Magnesia Specialties:
Products                                  70.0                  48.9
Freight                                    5.8                   4.7
Total Magnesia Specialties                75.8                  53.6
Total                               $  1,377.9             $ 1,270.6





                                 Page 31 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)





                                                       Three Months Ended June 30,
                                                 2021                               2020
                                      Amount        % of Revenues        Amount        % of Revenues
                                                          (Dollars in Millions)
Gross profit (loss):
Building Materials business:
Products and services
East Group
Aggregates                          $    212.2                38.3     $    194.0                38.8
Asphalt                                   11.8                25.0              -                   -
East Group Total                         224.0                37.5          194.0                38.8
West Group
Aggregates                                60.8                24.6           74.0                29.0
Cement                                    36.1                31.0           43.4                39.7
Ready mixed concrete                      19.1                 7.1           26.1                10.6
Asphalt and paving                        16.9                19.2           21.9                20.4
West Group Total                         132.9                21.1          165.4                25.8
Products and services                    356.9                29.1          359.4                31.5
Freight                                    0.7                               (0.3 )
Total Building Materials business        357.6                27.5          359.1                29.5
Magnesia Specialties:
Products                                  27.9                39.9           18.2                37.3
Freight                                   (0.9 )                             (1.3 )
Total Magnesia Specialties                27.0                35.6           16.9                31.5
Corporate                                  0.5                                4.5
Total                               $    385.1                27.9     $    380.5                29.9

Aggregates Products Gross Profit Rollforward

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

Aggregates products gross profit, quarter ended June 30, 2020 $ 268.0 Volume

                                                             17.2
Pricing                                                            22.1
Operational performance (1)                                       (34.3 )
Change in aggregates products gross profit                          5.0

Aggregates products gross profit, quarter ended June 30, 2021 $ 273.0




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




                                 Page 32 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)





                                                   Three Months Ended June 30,
                                               2021                           2020
                                                      % of                           % of
                                      Amount        Revenues         Amount        Revenues
                                                      (Dollars in Millions)
Selling, general & administrative
expenses:
Building Materials business:
East Group                          $     26.3                     $     24.4
West Group                                33.6                           32.7
Total Building Materials business         59.9                           57.1
Magnesia Specialties                       3.7                            3.4
Corporate                                 18.8                           10.7
Total                               $     82.4             6.0     $     71.2             5.6

Earnings (Loss) from operations:
Building Materials business:
East Group                          $    197.8                     $    169.9
West Group                               101.8                          133.2
Total Building Materials business        299.6                          303.1
Magnesia Specialties                      23.1                           13.2
Corporate                                (15.2 )                         (9.9 )
Total                               $    307.5            22.3     $    306.4            24.1




Building Materials Business

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



                                     Three Months Ended
                                       June 30, 2021
                                  Volume           Pricing
Volume/Pricing variance(1)
East Group                             7.0 %            3.6 %
West Group                            (3.6 %)           0.7 %
Total aggregates operations(2)         3.3 %            2.9 %




                                 Page 33 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)





                                   Three Months Ended
                                        June 30,
                                   2021           2020
                                   (Tons in Millions)
Shipments
East Group                            35.4          33.0
West Group                            17.5          18.2

Total aggregates operations(2) 52.9 51.2

(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.



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



                                                           Three Months Ended
                                                                June 30,
                                                     2021       2020       % Change
Shipments
Aggregates (in millions):
Tons to external customers                            48.8       47.9
Internal tons used in other product lines              4.1        3.3
Total aggregates tons                                 52.9       51.2            3.3 %

Cement (in millions):
Tons to external customers                             0.5        0.7
Internal tons used in ready mixed concrete             0.4        0.3
Total cement tons                                      0.9        1.0       

(1.9 %)

Ready Mixed Concrete (in millions of cubic yards) 2.3 2.2

8.2 %



Asphalt (in millions):
Tons to external customers                             1.2        0.2
Internal tons used in paving business                  0.6        0.9
Total asphalt tons                                     1.8        1.1           67.6 %




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



                                                Three Months Ended
                                                     June 30,
                                          2021         2020       % Change
Aggregates (per ton)                    $  15.07     $  14.66           2.9 %
Cement (per ton)                        $ 122.11     $ 114.34           6.8 %
Ready Mixed Concrete (per cubic yard)   $ 114.27     $ 112.89           1.2 %
Asphalt (per ton)                       $  48.83     $  46.54           4.9 %


                                 Page 34 of 52

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)





Aggregates End-Use Markets

Aggregates shipments to the infrastructure market declined, primarily driven by
weather-related project delays in key geographies and the timing of projects.
The infrastructure market accounted for 34% of second-quarter 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 36% of second-quarter aggregates shipments.

Aggregates shipments to the residential market increased 8%. Low available resale inventory and underbuilt conditions continue to drive robust residential construction activity. The residential market accounted for 25% of second-quarter aggregates shipments.

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

Building Materials Business Product Lines



Second-quarter aggregates shipments and pricing increased 3.3% and 2.9%,
respectively, compared with prior-year quarter. Organic aggregates shipments and
pricing increased 1.5% and 3.4%, respectively. East Group shipments increased
7.0% reflecting strong construction activity in the Carolinas, Georgia, Florida
and Maryland across all three primary end-use markets, coupled with incremental
volumes from the Tiller operations, which more than offset the weather-induced
project delays in the Midwest. Pricing increased 3.6% in the East Group,
reflecting favorable geographic mix. West Group shipments decreased 3.6%,
despite robust underlying demand, due to significant rainfall in both Texas and
Colorado. West Group's pricing increased 0.7%, reflecting a lower percentage of
higher-priced commercial rail-shipped volumes. Pricing in the West Group
increased 2.4% on a mix-adjusted basis. Aggregates product gross margin
decreased 150 basis points to 34.0%, driven by higher diesel costs of $12.2
million and a $6.1 million increase in cost of revenues from the impact of
selling acquired inventory after its markup to fair value as part of acquisition
accounting.

Cement pricing improved 6.8%, or 4.2% on a mix-adjusted basis, following annual
price increases that went into effect April 1, 2021. Cement shipments decreased
1.9% despite robust demand and construction activity throughout the Texas
Triangle, due to extreme precipitation from late April through mid-June. Product
gross margin declined 870 basis points to 31.0%, driven by the timing of planned
outages at the Hunter plant as well as higher energy and raw materials costs.

Ready mixed concrete shipments increased 8.2%, or 2.3% organically, driven by
incremental volume from large projects and operations acquired in August 2020.
This growth more than offset weather-related shipment declines. Pricing
increased 1.2% in second quarter 2021 compared with second quarter 2020,
reflecting geographic mix from a lower percentage of higher-priced Colorado
shipments. Product gross margin decreased 350 basis points to 7.1%, driven
primarily by higher raw material and diesel costs. Asphalt shipments increased
67.6% as incremental volume from the acquired Tiller operations more than offset
weather-related shipment declines in Colorado. Pricing increased 4.9% due to
price increases in Colorado as well as mix impact from higher priced Tiller
asphalt sales, both contributing to asphalt and paving products and services
gross margin improvement of 80 basis points.

                                 Page 35 of 52

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)



Magnesia Specialties Business

Magnesia Specialties second-quarter product revenues increased 43.2% to $70.0
million, reflecting improved demand for chemicals and lime products compared
with a COVID-19-challenged prior year. Product gross profit was $27.9 million
compared with $18.2 million. Product gross margin increased 260 basis points to
39.9% on strong volume increases. Second-quarter earnings from operations were
$23.1 million in 2021 compared with $13.2 million in 2020.

Consolidated Operating Results



Consolidated SG&A for second quarter 2021 was 6.0% of total revenues compared
with 5.6% in the prior-year quarter. During second-quarter 2021, the Company
incurred $0.7 million in COVID-19-related expenses versus $3.4 million in the
prior-year quarter for 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 $9.3
million in the quarter ended June 30, 2021. Earnings from operations for the
quarter were $307.5 million in 2021 compared with $306.4 million in 2020.

Among other items, other operating (income) and expenses, 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 second quarter, consolidated other operating (income) and
expenses, net, was income of $14.1 million in 2021 and expense of $2.4 million
in 2020. The 2021 income primarily reflects gain on the sale of the former
corporate headquarters.

Other nonoperating (income) and expenses, 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 second quarter,
other nonoperating income, net, was $8.7 million and $3.8 million in 2021 and
2020, respectively. The 2021 amount reflected lower pension expense of $4.6
million.

Six Months Ended June 30, 2021

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

? Consolidated total revenues of $2.36 billion compared with $2.23 billion

? Building Materials business products and services revenues of $2.08 billion

compared with $1.97 billion

? Consolidated gross profit of $559.8 million compared with $522.9 million

? Consolidated earnings from operations of $406.8 million compared with $364.2

million

? Net earnings attributable to Martin Marietta of $291.1 million compared with

$243.5 million


  ? Adjusted EBITDA of $644.8 million compared with $556.0 million


  ? Earnings per diluted share of $4.65 compared with $3.90


                                 Page 36 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 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 six months ended June 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. Prior-year segment
information has been reclassified to conform to the operations and management
reporting structure change effective July 1, 2020 (see Note 1 to financial
statements).



                                                           Six Months Ended June 30,
                                                  2021                                  2020
                                      Amount          % of Revenues         Amount          % of Revenues
                                                             (Dollars in Millions)
Total revenues:
Building Materials business:
Products and services
East Group
Aggregates                          $     926.8                           $     857.6
Asphalt                                    47.1                                     -
Less: Interproduct revenues                (4.8 )                                   -
East Group Total                          969.1                                 857.6
West Group
Aggregates                                447.6                                 467.6
Cement                                    226.1                                 216.1
Ready mixed concrete                      503.7                                 434.8
Asphalt and paving                        100.5                                 125.1
Less: Interproduct revenues              (165.0 )                              (129.5 )
West Group Total                        1,112.9                               1,114.1
Products and services                   2,082.0                               1,971.7
Freight                                   131.6                                 137.9
Total Building Materials business       2,213.6                               2,109.6
Magnesia Specialties:
Products                                  135.2                                 108.8
Freight                                    11.5                                  10.5
Total Magnesia Specialties                146.7                                 119.3
Total                               $   2,360.3                           $   2,228.9




                                 Page 37 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)





                                                         Six Months Ended June 30,
                                                 2021                                2020
                                      Amount         % of Revenues        Amount         % of Revenues
                                                           (Dollars in Millions)
Gross profit (loss):
Building Materials business:
Products and services
East Group
Aggregates                          $     298.6                32.2     $     253.9                29.6
Asphalt                                    11.8                25.0               -                   -
East Group Total                          310.4                32.0           253.9                29.6
West Group
Aggregates                                 96.1                21.5           107.4                23.0
Cement                                     51.4                22.7            70.7                32.7
Ready mixed concrete                       38.6                 7.7            32.0                 7.4
Asphalt and paving                          8.6                 8.6            13.8                11.1
West Group Total                          194.7                17.5           223.9                20.1
Products and services                     505.1                24.3           477.8                24.2
Freight                                     0.5                                (0.6 )
Total Building Materials business         505.6                22.8           477.2                22.6
Magnesia Specialties:
Products                                   56.3                41.7            44.3                40.7
Freight                                    (1.9 )                              (2.2 )
Total Magnesia Specialties                 54.4                37.1            42.1                35.3
Corporate                                  (0.2 )                               3.6
Total                               $     559.8                23.7     $     522.9                23.5

Aggregates Products Gross Profit Rollforward

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

Aggregates products gross profit, six months ended June 30, 2020 $ 361.3



Aggregates products:
Volume                                                                10.3
Pricing                                                               40.9
Operational performance (1)                                          (17.8 )
Change in aggregates products gross profit                            33.4

Aggregates products gross profit, six months ended June 30, 2021 $ 394.7

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


    operating impacts


                                 Page 38 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)





                                                       Six Months Ended June 30,
                                                2021                               2020
                                                     % of Total                         % of Total
                                     Amount           Revenues          Amount           Revenues
                                                         (Dollars in Millions)
Selling, general &
administrative expenses:
Building Materials business:
East Group                         $      50.5                        $      49.2
West Group                                66.9                               66.0
Total Building Materials
business                                 117.4                              115.2
Magnesia Specialties                       7.4                                6.9
Corporate                                 37.4                               27.8
Total                              $     162.2                6.9     $     149.9                6.7

Earnings (Loss) from operations:
Building Materials business:
East Group                         $     259.5                        $     204.7
West Group                               133.6                              155.9
Total Building Materials
business                                 393.1                              360.6
Magnesia Specialties                      46.7                               34.9
Corporate                                (33.0 )                            (31.3 )
Total                              $     406.8               17.2     $     364.2               16.3


Building Materials Business

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



                                     Six Months Ended
                                       June 30, 2021
                                  Volume          Pricing
Volume/Pricing variance(1)
East Group                             4.2 %           3.6 %
West Group                            (5.5 %)          1.3 %
Total aggregates operations(2)         0.6 %           3.1 %

Organic aggregates operations (0.4 %) 3.4 %


                                 Page 39 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)







                                    Six Months Ended
                                        June 30,
                                    2021           2020
                                   (Tons in Millions)
Shipments
East Group                              58.1        55.7
West Group                              31.9        33.8

Total aggregates operations(2) 90.0 89.5

(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.



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



                                                            Six Months Ended
                                                                June 30,
                                                     2021       2020       % Change
Shipments
Aggregates (in millions):
Tons to external customers                            83.3       83.9
Internal tons used in other product lines              6.7        5.6
Total aggregates tons                                 90.0       89.5            0.6 %

Cement (in millions):
Tons to external customers                             1.2        1.3
Internal tons used in ready mixed concrete             0.7        0.6
Total cement tons                                      1.9        1.9       

(0.8 %)

Ready Mixed Concrete (in millions of cubic yards) 4.4 3.8

16.1 %



Asphalt (in millions):
Tons to external customers                             1.3        0.3
Internal tons used in paving business                  0.6        1.0
Total asphalt tons                                     1.9        1.3           53.1 %


                                 Page 40 of 52

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 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:



                                                  Six Months Ended
                                                      June 30,
                                          2021         2020        % Change
Aggregates (per ton)                    $  15.17     $  14.72            3.1 %
Cement (per ton)                        $ 118.80     $ 114.06            4.2 %
Ready Mixed Concrete (per cubic yard)   $ 113.25     $ 113.53           (0.2 %)
Asphalt (per ton)                       $  48.85     $  46.38            5.3 %

Aggregates Product Line End-Use Markets



For the six months ended June 30, 2021, aggregates shipments to the
infrastructure market accounted for 33% of aggregates volumes and declined 8%
compared to the prior-year period, primarily attributable to weather-impacted
project delays and timing of projects.

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 aggregates shipments.

Aggregates shipments to the residential market increased 8%, reflecting sustained robust housing demand. The residential market accounted for 26% of year-to-date aggregates shipments.

The ChemRock/Rail market accounted for the remaining 5% of year-to-date aggregates shipments. Volumes to this end use decreased 20%, driven by lower ballast shipments to Class I railroads.

Building Materials Business Product Lines



For the six months ended June 30, 2021, aggregates shipments increased 0.6%,
reflecting strong construction activity in the Carolinas, Georgia, Florida and
Maryland, offset by weather-induced delays in the Midwest, Texas and
Colorado. Pricing increased 3.1% compared with the prior-year period which led
to a 140-basis-point improvement in aggregates product gross margin to 28.7%.
Aggregates shipments declined 0.4% and pricing increased 3.4% on an organic
basis.

For the six months ended June 30, 2021, cement pricing increased 4.2% and shipments decreased 0.8% compared with the prior-year period. On a mix-adjusted basis, pricing increased 3.0%. 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 decline in cement product gross margin to 22.7%.



Ready mixed concrete shipments increased 16.1%, or 9.6% organically, driven by
incremental volume from large projects and operations acquired in August 2020,
partially offset by weather-related delays. Ready mixed concrete pricing for the
six months ended June 30, 2021 decreased 0.2%, reflecting a lower percentage of
shipments from Colorado, which carry higher average selling prices. Asphalt
shipments improved 53.1% compared with the prior-year period, attributable to
incremental volumes from the acquired Tiller operations. Asphalt pricing
increased 5.3% reflecting increased pricing and favorable mix impact from Tiller
operations.

Magnesia Specialties Business



For the six months ended June 30, 2021, Magnesia Specialties reported product
revenues of $135.2 million compared with $108.8 million for the prior-year
period. Lower lime and periclase shipments to the steel industry due to
COVID-19-induced shutdowns of domestic auto manufacturers in the prior year
resulted in lower revenues for 2020. Product gross profit was $56.3 million
compared with $44.3 million, primarily driven by higher volumes and revenues.
Product line

                                 Page 41 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)


gross margin for the six months ended June 30, 2021, was 41.7%, a 100-basis-point increase versus the prior-year period. Earnings from operations were $46.7 million compared with $34.9 million.

Consolidated Operating Results



For the six months ended June 30, 2021, consolidated SG&A was 6.9% of total
revenues compared with 6.7% in 2020. During the first six months of 2021, the
Company incurred $1.7 million in COVID-19-related expenses compared with $3.5
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 $10.6 million of acquisition-related expenses for the six months ended
June 30, 2021. Earnings from operations for the six months ended June 30 were
$406.8 million in 2021 compared with $364.2 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
six months ended June 30, consolidated other operating income, net, was income
of $19.8 million and expense of $8.0 million in 2021 and 2020, respectively. The
2021 amount is primarily attributable to the gains on the sales of several
properties of $16.5 million. The 2020 amount reflected higher credit loss
expenses and increased asset reclamation costs.

Other nonoperating income, net, includes interest income; pension and
postretirement benefit cost, excluding service cost; foreign currency
transaction gains and losses; equity in earnings or losses of nonconsolidated
affiliates and other miscellaneous income. For the six months ended June 30,
other nonoperating income, net, was $18.2 million in 2021 and $1.9 million in
2020. The 2021 amount reflected lower pension expense of $7.8 million 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 six months ended June 30, 2021, the effective income tax rate was 21.2%.
For the six months ended June 30, 2020, the effective income tax rate of 20.2%
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 six months ended June 30, 2021 and
2020 was $441.2 million and $373.2 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:



                    Six Months Ended
                        June 30,
                   2021            2020
                 (Dollars in Millions)
Depreciation   $      172.4       $ 167.0
Depletion              17.5          16.4
Amortization           16.6          10.0
Total          $      206.5       $ 193.4




                                 Page 42 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)




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.

During the six months ended June 30, 2021 and 2020, the Company paid $213.0 million and $175.7 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 six months of 2021. At June 30, 2021, 13,520,952 shares of
common stock were remaining under the Company's repurchase authorization.

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 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 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 intends to use the net proceeds of
the 2.400% Senior Notes and the 3.200% Senior Notes to pay the consideration for
the acquisition of Lehigh Hanson, Inc.'s West Region business (Lehigh West
Region). The net proceeds of the 0.650% Senior Notes will be used for general
corporate purposes, which may include funding acquisitions (including Lehigh
West Region) or repaying indebtedness. If (i) the Lehigh West Region acquisition
is not consummated prior to March 31, 2022, (ii) the securities purchase
agreement in respect of the acquisition is terminated at any time prior to March
31, 2022 (other than as a result of consummating the acquisition) or (iii) the
Company publicly announces at any time prior to March 31, 2022 that it will no
longer pursue the consummation of the acquisition, then the Company will be
required to redeem all of the outstanding 2.400% Senior Notes and 3.200% Senior
Notes pursuant to a special mandatory redemption at a redemption price equal to
101% of the aggregate principal amount of the 2.400% Senior Notes and the 3.200%
Senior Notes, respectively, plus accrued and unpaid interest to, but excluding,
the date of such special mandatory redemption. The 0.650% Senior Notes will not
be subject to the special mandatory redemption. 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), which expires on September 22, 2021. The Trade Receivable Facility
contains a cross-default provision to the Company's other debt agreements.
Management intends to renew the Trade Receivable Facility beyond September 22,
2021.

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.

                                 Page 43 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)



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.

At June 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 1.95 times and was calculated as follows:



                                                                     July 1, 2020 to
                                                                      June 30, 2021
                                                                  (Dollars in Millions)
Earnings from continuing operations attributable to Martin
Marietta                                                         $                 768.5
Add back:
Interest expense                                                                   112.7
Income tax expense                                                                 184.7
Depreciation, depletion and amortization expense                            

402.8


Stock-based compensation expense                                            

31.1


Acquisition-related expenses                                                

18.2

EBITDA related to acquired operations (Pre-acquisition

July 1, 2020 to April 30, 2021)(1)                                        

34.6

Deduct:


Interest income                                                             

(0.2 ) Consolidated EBITDA, as defined by the Company's Revolving Facility

                                                         $          

1,552.4

Consolidated net debt, as defined and including debt for which the Company


   is a co-borrower, at June 30, 2021                            $          

3,027.6

Consolidated net debt-to-consolidated EBITDA, as defined by the Company's

Revolving Facility, at June 30, 2021 for the trailing-twelve months EBITDA

1.95 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 $240 million outstanding under the Trade Receivable
Facility and no borrowings under the Revolving Facility as of June 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 June 30, 2021, the
Company had $857.4 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

                                 Page 44 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)


successfully extended the maturity dates of these credit facilities. Further, as of June 30, 2021, the Company does not have any publicly-traded debt that matures prior to 2023.



As of June 30, 2021, the Company had restricted cash of $17.2 million for the
purchase of like-kind exchange replacement assets under Section 1031 of the
Internal Revenue Code and related IRS procedures (Section 1031) available to use
until November 22, 2021.

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.

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

                                 Page 45 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)



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 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 supply­chain
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

                                 Page 46 of 52

--------------------------------------------------------------------------------

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                         For the Quarter June 30, 2021

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                                  (Continued)



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 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-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 47 of 52

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                      For the Quarter Ended June 30, 2021

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