RESULTS OF OPERATIONS


                     Third Quarter Ended September 30, 2020

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 290
quarries, mines and distribution yards in 27 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 and asphalt and paving product lines are reported collectively as the
"Building Materials" business.

Effective July 1, 2020, the Company made organizational changes, including
consolidating its operational management and operating divisions, in connection
with the retirement of two senior executives as of the end of the second
quarter. Notably, the Mid-Atlantic Division and Southeast Division have been
combined into the newly formed East Division. Additionally, the Southwest
Aggregates Division and the Cement and Southwest Ready Mix Division have been
combined into the newly formed Southwest Division. Subsequent to these changes,
the Building Materials business consists of four divisions, which also includes
the Central and West Divisions. Each division, as well as the Magnesia
Specialties business, represents an operating segment.

The Company's Building Materials business includes two reportable segments: the
East Group and the West Group. The East Group, whose operations were previously
reported in the Mid-America and Southeast Groups, consists of the East and
Central Divisions. Prior-period reportable segment information for the
Mid-America and Southeast Groups have been combined into the East Group. The
West Group, which reflects no changes in operations included in this reportable
segment, is comprised of the Southwest and West Divisions. There were no changes
to the Magnesia Specialties reportable segment.

Effective January 1, 2020, the Company moved the management of its one quarry in
the state of Washington from the East Group to the West Group, resulting in an
immaterial change to its reportable segments.







                                 Page 24 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



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

      Product Lines                    Aggregates                  

Aggregates, Cement, Ready


                                                                   Mixed Concrete, Asphalt and
                                                                              Paving

       Plant Types          Quarries, Mines and Distribution       Quarries, Mines, Plants and
                                       Facilities                    Distribution Facilities

 Modes of Transportation         Truck, Railcar and Ship                Truck and Railcar




The Company's 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.

CRITICAL ACCOUNTING POLICIES



The Company outlined its critical accounting policies in its Annual Report on
Form 10-K for the year ended December 31, 2019. There were no changes to the
Company's critical accounting policies during the nine months ended
September 30, 2020.

RESULTS OF OPERATIONS



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 on the Company's operations
of weather and the coronavirus (COVID-19) pandemic, including governmental
responses to prevent further outbreak of COVID-19 and other matters, current
period results are not necessarily indicative of expected performance for other
interim periods or the full year. Additionally, the Company recognized $69.9
million of gains on the sales of investment land and divestitures of assets in
the quarter ended September 30, 2020, which are nonrecurring in nature.

                                 Page 25 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



Earnings before interest; income taxes; depreciation, depletion and
amortization; and the earnings/loss from nonconsolidated equity affiliates
(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 consolidated Adjusted EBITDA is as follows:





                                           Three Months Ended              Nine Months Ended
                                              September 30,                  September 30,
                                          2020             2019           2020            2019
                                                         (Dollars in Millions)
Net Earnings Attributable to Martin
Marietta                               $     294.4      $    248.6     $     538.0     $    480.9
Add back:
Interest expense, net of interest
income                                        28.6            32.3            89.3           98.4
Income tax expense for controlling
interests                                     81.5            66.2           143.0          111.0
Depreciation, depletion and
amortization and
  earnings/loss from nonconsolidated
equity
  affiliates                                  97.2            92.0           287.5          285.5
Consolidated Adjusted EBITDA           $     501.7      $    439.1     $   1,057.8     $    975.8




                                 Page 26 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (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 assuming
current-period shipments reflect the same product, geographic and other mix as
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,
                                          2020             2019           2020            2019
West Group - Aggregates Product
Line:
Reported average selling price         $     13.95      $    14.04     $     13.82     $    13.47
Adjustment for unfavorable impact of
product,
  geographic and other mix                    0.64                            0.20
Mix-adjusted ASP                       $     14.59                     $     14.02

Reported average selling price
variance                                      (0.6 )%                          2.6 %
Mix-adjusted ASP variance                      3.9 %                           4.1 %

Aggregates Product Line:
Reported average selling price         $     14.75      $    14.37     $     14.73     $    14.31
Adjustment for unfavorable impact of
product,
  geographic and other mix                    0.19                            0.14
Mix-adjusted ASP                       $     14.94                     $     14.87

Reported average selling price
variance                                       2.7 %                           2.9 %
Mix-adjusted ASP variance                      4.0 %                           3.9 %

Cement Product Line:
Reported average selling price         $    113.41      $   112.36     $    113.83     $   112.53
Adjustment for unfavorable impact of
product,
  geographic and other mix                    2.82                            2.41
Mix-adjusted ASP                       $    116.23                     $    116.24

Reported average selling price
variance                                       0.9 %                           1.2 %
Mix-adjusted ASP variance                      3.4 %                           3.3 %




                                 Page 27 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



The following table presents ready mixed concrete shipment data and volume
variances excluding four ready mixed concrete operations acquired in the third
quarter of 2020 and excluding the Arkansas, Louisiana and eastern Texas ready
mix business (ArkLaTex business) that was divested in January 2020 during the
period of Martin Marietta's ownership to provide a more comparable analysis of
ready mixed concrete volume variance:

                                            Three Months Ended                Nine Months Ended
                                               September 30,                    September 30,
                                          2020               2019           2020              2019
Shipments                                                (Cubic Yards in Millions)
Reported ready mixed concrete
shipments                                      2.2               2.4             6.1              6.5
Less: ready mixed concrete shipments
of
  acquired operations                         (0.1 )               -            (0.1 )              -
Less: ready mixed concrete shipments
for the
  ArkLaTex business during the
period of Martin
  Marietta ownership                             -              (0.1 )             -             (0.4 )
Adjusted ready mixed concrete
shipments                                      2.1               2.3             6.0              6.1

Reported ready mixed concrete volume
variance                                      (8.3 )%                       

(7.2 )%



Adjusted ready mixed concrete volume
variance                                      (4.0 )%                           (1.5 )%





Financial highlights for the quarter ended September 30, 2020 (unless noted, all comparisons are versus the prior-year quarter):

? Consolidated total revenues of $1,321.4 million compared with $1,420.2

million

? Building Materials business products and services revenues of $1,185.5

million compared with $1,263.9 million

? Magnesia Specialties products revenues of $55.2 million compared with $59.3

million

? Consolidated gross profit of $404.5 million compared with $420.6 million




   ?  Consolidated earnings from operations of $400.6 million(1) compared with
      $345.3 million

? Net earnings attributable to Martin Marietta of $294.4 million(2) compared

with $248.6 million

? Consolidated Adjusted EBITDA of $501.7 million(1) compared with $439.1


      million


  ? Earnings per diluted share of $4.71(2) compared with $3.96

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

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


                                 Page 28 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (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, 2020 and 2019. 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 changes to the reportable segments effective January 1, 2020 and July
1, 2020 (see Note 1 to financial statements).

                                                          Three Months Ended September 30,
                                                      2020                                   2019
                                         Amount            % of Revenues          Amount        % of Revenues
                                                                (Dollars in Millions)
Total revenues:
Building Materials Business:
Products and services
East Group
Aggregates                            $      514.1                              $    539.8
West Group
Aggregates                                   252.8                                   278.9
Cement                                       115.6                                   119.6
Ready mixed concrete                         254.6                                   271.8
Asphalt and paving                           129.8                                   131.1
Less: Interproduct revenues                  (81.4 )                                 (77.3 )
West Group Total                             671.4                                   724.1
Products and services                      1,185.5                                 1,263.9
Freight                                       75.0                                    91.5
Total Building Materials Business          1,260.5                          

1,355.4


Magnesia Specialties Business:
Products                                      55.2                          

59.3


Freight                                        5.7                                     5.5
Total Magnesia Specialties Business           60.9                                    64.8
Total                                 $    1,321.4                              $  1,420.2



                                 Page 29 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



                                                        Three Months Ended September 30,
                                                    2020                                 2019
                                        Amount           % of Revenues        Amount        % of Revenues
                                                             (Dollars in Millions)
Gross profit (loss):
Building Materials Business:
Products and services
East Group
Aggregates                            $     206.1                  40.1     $    211.0                39.1
West Group
Aggregates                                   73.0                  28.9           76.1                27.3
Cement                                       46.5                  40.2           48.5                40.6
Ready mixed concrete                         24.7                   9.7           29.0                10.6
Asphalt and paving                           32.6                  25.1           31.1                23.7
West Group Total                            176.8                  26.3          184.7                25.5
Products and services                       382.9                  32.3          395.7                31.3
Freight                                       0.9                                  0.2
Total Building Materials Business           383.8                  30.4          395.9                29.2
Magnesia Specialties Business:
Products                                     21.0                  38.0           24.0                40.4
Freight                                      (1.0 )                               (1.0 )
Total Magnesia Specialties Business          20.0                  32.9           23.0                35.5
Corporate                                     0.7                                  1.7
Total                                 $     404.5                  30.6     $    420.6                29.6

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, 2019   $ 287.1
Volume                                                                 (38.7 )
Pricing                                                                 19.9
Operational performance (1)                                             10.8
Change in aggregates products gross profit                              

(8.0 ) Aggregates products gross profit, quarter ended September 30, 2020 $ 279.1




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




                                 Page 30 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



                                                  Three Months Ended September 30,
                                                2020                             2019
                                                         % of                           % of
                                      Amount           Revenues         Amount        Revenues
                                                       (Dollars in 

Millions)


Selling, general & administrative
expenses:
Building Materials Business:
East Group                          $      24.9                       $     21.3
West Group                                 34.2                             29.3
Total Building Materials Business          59.1                             50.6
Magnesia Specialties                        3.6                              2.8
Corporate                                   8.4                             24.8
Total                               $      71.1               5.4     $     78.2             5.5

Earnings (Loss) from operations:
Building Materials Business:
East Group                          $     181.4                       $    190.8
West Group(1)                             212.3                            156.8
Total Building Materials Business         393.7                            347.6
Magnesia Specialties                       16.4                             20.1
Corporate                                  (9.5 )                          (22.4 )
Total                               $     400.6              30.3     $    345.3            24.3

(1) 2020 amounts include nonrecurring gains on sales of investment land and divested assets of $69.9 million


                                 Page 31 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



Building Materials Business

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





                                     Three Months Ended
                                     September 30, 2020
                                  Volume           Pricing
Volume/Pricing variance(1)
East Group                            (8.8 )%           4.4 %
West Group                            (8.4 )%          (0.6 )%
Total Aggregates Operations(2)        (8.7 )%           2.7 %




                                   Three Months Ended
                                      September 30,
                                   2020           2019
                                   (Tons in Millions)
Shipments
East Group                            33.7          37.0
West Group                            18.1          19.7

Total Aggregates Operations(2) 51.8 56.7

(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.



Third-quarter aggregates shipments declined 8.7% compared with the robust
prior-year quarter. Aggregates shipments to the infrastructure and
nonresidential end-use markets declined, while shipments to the residential
market increased slightly. Aggregates pricing improved 2.7%, or 4.0% on a
mix-adjusted basis. East Group shipments decreased 8.8%, reflecting
weather-delayed projects in the Mid-Atlantic and Southeast, anticipated lower
infrastructure shipments in portions of North Carolina and reduced wind energy
construction activity in the Midwest. West Group shipments decreased 8.4%,
primarily due to reduced energy-sector shipments. East Group pricing increased
4.4% with solid improvements in both the East and Central Divisions. Pricing
decreased 0.6% in the West Group, as a lower percentage of higher-priced
commercial rail-shipped volumes in Houston offset price increases in the
Company's other Texas markets and Colorado. On a mix-adjusted basis, West Group
pricing increased 3.9%.

                                 Page 32 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



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



                                                      Three Months Ended
                                                         September 30,
                                                      2020           2019
Shipments
Aggregates (in millions):
Tons to external customers                               48.1          53.6
Internal tons used in other product lines                 3.7           3.1
Total aggregates tons                                    51.8          56.7

Cement (in millions):
Tons to external customers                                0.7           0.8
Internal tons used in ready mixed concrete                0.3           0.3
Total cement tons                                         1.0           1.1

Ready Mixed Concrete (in millions of cubic yards)         2.2           2.4

Asphalt (in millions):
Tons to external customers                                0.3           0.4
Internal tons used in paving business                     1.0           0.9
Total asphalt tons                                        1.3           1.3




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

                                                Three Months Ended
                                                   September 30,
                                          2020         2019       % Change
Aggregates (per ton)                    $  14.75     $  14.37           2.7 %
Cement (per ton)                        $ 113.41     $ 112.36           0.9 %
Ready Mixed Concrete (per cubic yard)   $ 114.15     $ 111.72           2.2 %
Asphalt (per ton)                       $  49.56     $  46.67           6.2 %


Aggregates End-Use Markets

Aggregates shipments to the Company's primary end use markets are broadly consistent with macro trends and COVID impacts.



Aggregates shipments to the infrastructure market declined, primarily driven by
project delays and anticipated lower shipments in portions of North Carolina.
The infrastructure market accounted for 38% of third-quarter aggregates
shipments, below the Company's most recent ten-year annual average of 45%.

Following double-digit growth in commercial and heavy industrial construction
activity in the prior-year quarter, aggregates shipments to the nonresidential
market declined, driven by reduced energy-sector activity from low oil prices,
as well the completion of certain windfarm and liquefied natural gas projects.
Notably, the Company continued

                                 Page 33 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)


to benefit from warehouse and data center projects. The nonresidential market represented 33% of third-quarter aggregates shipments.

Aggregates shipments to the residential market increased slightly. Housing construction has returned to pre-COVID levels in several of the Company's key geographies, reflective of pent-up demand, low available inventories and favorable interest rates. The residential market accounted for 24% of third-quarter aggregates shipments.

The ChemRock/Rail market accounted for the remaining 5% of third-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



Third-quarter aggregates shipments declined 8.7% compared with prior-year
quarter, reflecting the broad economic impact from COVID-19 and a comparison
against a strong prior-year quarter. Pricing improved 2.7% compared with the
prior-year quarter. Aggregates product gross margin increased 130 basis points
to 36.4%, driven by increased pricing coupled with lower diesel fuel, contract
services, supplies and repair costs.

While underlying Texas demand remains resilient, third-quarter cement shipments
decreased 3.9%, driven primarily by the decline in energy-sector activity
resulting from low oil prices. Cement pricing improved 0.9% compared with
prior-year quarter, with strength in North Texas, Houston and portions of
Central Texas offset by lower sales of higher-priced oil-well specialty cement
products into West Texas. On a mix-adjusted basis, cement pricing increased
3.4%. Cement product gross margin decreased 40 basis points versus the
prior-year quarter to 40.2%, driven by lower shipments of higher priced oil-well
specialty products and higher maintenance costs.

Ready mixed concrete pricing improved 2.2% and volume decreased 4.0% in the
third quarter, excluding shipments from ready mixed concrete operations acquired
in the third quarter of 2020 and excluding third-quarter 2019 shipments from the
Southwest Division's concrete business in the Arkansas, Louisiana and Eastern
Texas areas, generally known as ArkLaTex, that was divested in January 2020.
Product gross margin declined 90 basis points to 9.7%, driven primarily by
higher raw material costs. Asphalt pricing increased 6.2% due to favorable
product mix. Asphalt shipments decreased 2.8% versus prior-year quarter.

Magnesia Specialties Business



Magnesia Specialties product revenues decreased 7% to $55.2 million, reflecting
lower demand for chemicals and lime products reflecting the broad economic
impact associated with the COVID-19 pandemic. Product gross profit was $21.0
million compared with $24.0 million. Product gross margin was 38.0% compared
with 40.4%. Third-quarter earnings from operations were $16.4 million in 2020
compared with $20.1 million in 2019.

Consolidated Operating Results



Consolidated SG&A for third quarter 2020 was 5.4% of total revenues compared
with 5.5% in the prior-year quarter. During third-quarter 2020, the Company
incurred $1.3 million in COVID-19 related expenses for enhanced cleaning and
sanitizing protocols across the Company's operations, which are recorded in
SG&A. Earnings from operations for the quarter were $400.6 million in 2020
compared with $345.3 million in 2019.

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

                                 Page 34 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



income, net, was $67.6 million in 2020 and $2.9 million in 2019. The income in
2020 includes $69.9 million of nonrecurring gains on the sales of investment
land and divested assets in Austin, Texas; Riverside, California; and Augusta,
Kansas, which collectively provided pretax cash proceeds of $122.4 million.
These gains are recorded in the West Group.

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 third quarter,
other nonoperating (income) and expenses, net, was income of $4.0 million and
$1.9 million in 2020 and 2019, respectively.

                                 Page 35 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)


Financial highlights for the nine months ended September 30, 2020 (unless noted, all comparisons are versus the prior-year period):

? Consolidated total revenues of $3,550.3 million compared with $3,638.7

million

? Building Materials business products and services revenues of $3,157.2


      million compared with $3,198.7 million


   ?  Magnesia Specialties products revenues of $164.0 million compared with
      $198.9 million

? Consolidated gross profit of $927.4 million compared with $920.4 million




   ?  Consolidated earnings from operations of $764.8 million(1) compared with
      $700.4 million

? Net earnings attributable to Martin Marietta of $538.0 million(2) compared

with $480.9 million

? Consolidated Adjusted EBITDA of $1,057.8 million(1) compared with $975.8


      million


  ? Earnings per diluted share of $8.61(2) compared with $7.65

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

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





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, 2020 and 2019.
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 changes to the reportable
segments effective January 1, 2020 and July 1, 2020 (see Note 1 to financial
statements).

                                                           Nine Months Ended September 30,
                                                      2020                                   2019
                                         Amount            % of Revenues         Amount          % of Revenues
                                                                (Dollars in Millions)
Total revenues:
Building Materials Business:
Products and services
East Group
Aggregates                            $    1,371.8                             $   1,398.6
West Group
Aggregates                                   720.3                                   722.8
Cement                                       331.7                                   331.0
Ready mixed concrete                         689.4                                   724.2
Asphalt and paving                           254.9                                   225.7
Less: Interproduct revenues                 (210.9 )                                (203.6 )
West Group Total                           1,785.4                                 1,800.1
Products and services                      3,157.2                                 3,198.7
Freight                                      212.9                                   224.8
Total Building Materials Business          3,370.1                                 3,423.5
Magnesia Specialties:
Products                                     164.0                                   198.9
Freight                                       16.2                                    16.3
Total Magnesia Specialties Business          180.2                                   215.2
Total                                 $    3,550.3                             $   3,638.7


                                 Page 36 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



                                                         Nine Months Ended September 30,
                                                    2020                                 2019
                                         Amount          % of Revenues        Amount         % of Revenues
                                                              (Dollars in Millions)
Gross profit (loss):
Building Materials Business:
Products and services
East Group
Aggregates                            $      460.0                 33.5     $     475.7                34.0
West Group
Aggregates                                   180.4                 25.0           160.8                22.3
Cement                                       117.2                 35.3           104.5                31.6
Ready mixed concrete                          56.7                  8.2            62.5                 8.6
Asphalt and paving                            46.4                 18.2            38.5                17.1
West Group Total                             400.7                 22.4           366.3                20.4
Products and services                        860.7                 27.3           842.0                26.3
Freight                                        0.3                                  0.4
Total Building Materials Business            861.0                 25.5           842.4                24.6
Magnesia Specialties:
Products                                      65.3                 39.8            79.8                40.1
Freight                                       (3.2 )                               (3.2 )
Total Magnesia Specialties Business           62.1                 34.5            76.6                35.6
Corporate                                      4.3                                  1.4
Total                                 $      927.4                 26.1     $     920.4                25.3

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, 2019   $ 636.5
Volume                                                                     (46.5 )
Pricing                                                                     58.9
Operational performance (1)                                                 (8.5 )
Change in aggregates products gross profit                                  

3.9

Aggregates products gross profit, nine months ended September 30, 2020 $ 640.4

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





                                 Page 37 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



                                                     Nine Months Ended September 30,
                                                 2020                                2019
                                                       % of Total                         % of Total
                                      Amount            Revenues          Amount           Revenues
                                                          (Dollars in Millions)
Selling, general &
administrative expenses:
Building Materials Business:
East Group                         $       74.0                         $      63.2
West Group                                100.2                                86.2
Total Building Materials
Business                                  174.2                               149.4
Magnesia Specialties                       10.4                                 8.5
Corporate                                  36.4                                71.0
Total                              $      221.0                 6.2     $     228.9                6.3

Earnings (Loss) from operations:
Building Materials Business:
East Group                         $      386.1                         $     416.5
West Group(1)                             368.2                               287.7
Total Building Materials
Business                                  754.3                               704.2
Magnesia Specialties                       51.2                                68.0
Corporate                                 (40.7 )                             (71.8 )
Total                              $      764.8                21.5     $     700.4               19.2

(1) 2020 amounts include nonrecurring gains on sales of investment land and divested assets of $69.9 million


                                 Page 38 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



Building Materials Business

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



                                      Nine Months Ended
                                     September 30, 2020
                                   Volume           Pricing
Volume/Pricing variance(1)
East Group                             (4.8 )%           3.2 %
West Group                             (2.7 )%           2.6 %
Total Aggregates Operations(2)         (4.1 )%           2.9 %




                                    Nine Months Ended
                                      September 30,
                                    2020          2019
                                   (Tons in Millions)
Shipments
East Group                              89.4        93.9
West Group                              51.8        53.3

Total Aggregates Operations(2) 141.2 147.2

(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:

                                                      Nine Months Ended
                                                        September 30,
                                                       2020         2019
Shipments
Aggregates (in millions):
Tons to external customers                               131.9       139.4
Internal tons used in other product lines                  9.3         7.8
Total aggregates tons                                    141.2       147.2

Cement (in millions):
Tons to external customers                                 2.0         2.0
Internal tons used in ready mixed concrete                 0.9         0.9
Total cement tons                                          2.9         2.9

Ready Mixed Concrete (in millions of cubic yards) 6.1 6.5



Asphalt (in millions):
Tons to external customers                                 0.6         0.7
Internal tons used in paving business                      2.0         1.6
Total asphalt tons                                         2.6         2.3


                                 Page 39 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



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

                                                 Nine Months Ended
                                                   September 30,
                                          2020         2019       % Change
Aggregates (per ton)                    $  14.73     $  14.31           2.9 %
Cement (per ton)                        $ 113.83     $ 112.53           1.2 %
Ready Mixed Concrete (per cubic yard)   $ 113.75     $ 110.89           2.6 %
Asphalt (per ton)                       $  47.99     $  46.83           2.5 %

Aggregates Product Line End-Use Markets



For the nine months ended September 30, 2020, aggregates shipments to the
infrastructure market accounted for 37% of aggregates volumes and declined 2%
compared to the prior-year period, driven by lower anticipated infrastructure
shipments in portions of North Carolina.

Aggregates shipments to the nonresidential market declined following
double-digit growth in commercial and heavy industrial construction activity,
notably in Texas and Iowa, in the prior-year period. Additionally, energy-sector
demand declined in 2020, driven by low oil prices. The nonresidential market
represented 33% of year-to-date aggregates shipments.

Following a slowdown in the residential market in the first quarter of 2020 due
to COVID-19, aggregates shipments to the residential market increased,
reflecting pent-up housing demand and emerging homebuying trends as prospective
buyers look to move to small metro or suburban locations. The residential market
accounted for 24% of year-to-date aggregates shipments.

The ChemRock/Rail market accounted for the remaining 6% of year-to-date aggregates shipments. Volumes to this end use were relatively flat compared with the prior-year period.

Building Materials Business Product Lines



For the nine months ended September 30, 2020, aggregates shipments decreased
4.1%, reflecting the broad economic impact from COVID-19 and a comparison with
prior-year volumes that benefited from carryover work from 2018. Pricing
increased 2.9% compared with the prior-year period which, coupled with effective
cost control and lower diesel fuel costs, led to a 60-basis-point improvement in
aggregates product gross margin to 30.6%. On a mix-adjusted basis, pricing
increased 3.9%.

For the nine months ended September 30, 2020, cement shipments decreased 0.7%
and pricing increased 1.2% compared with the prior-year period. On a
mix-adjusted basis, pricing increased 3.3%. Production efficiencies and lower
fuel costs contributed to the 370-basis-point expansion in cement product gross
margin to 35.3%.

Ready mixed concrete pricing improved 2.6% and shipments declined 1.5%,
excluding shipments from ready mixed concrete operations acquired in the third
quarter of 2020 and excluding shipments for the nine months ended September 30,
2019 from the Southwest Division's ArkLaTex ready mix operations divested in
January 2020. Asphalt volume increased 14.4% attributable to favorable weather
compared with the prior-year period and strong customer demand. Asphalt pricing
increased 2.5%.

                                 Page 40 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



Magnesia Specialties Business

For the nine months ended September 30, 2020, Magnesia Specialties reported
product revenues of $164.0 million compared with $198.9 million for the
prior-year period. Year-over-year revenue decline is primarily attributable to
lower lime and periclase shipments to the steel industry in response to the
COVID-19-induced shutdown of domestic auto manufacturers. Additionally, the
business experienced a continued decline in chemicals products sales as both
domestic and international customers experienced a downturn in economic activity
related to COVID-19. Product gross profit was $65.3 million compared with $79.8
million. Product line gross margin for the nine months ended September 30, 2020,
was 39.8%, with effective cost control limiting the decline to 30 basis points
versus the prior-year period. Earnings from operations were $51.2 million
compared with $68.0 million.

Consolidated Operating Results



For the nine months ended September 30, 2020, consolidated SG&A was 6.2% of
total revenues compared with 6.3% in 2019. During the first nine months of 2020,
the Company incurred $4.8 million in COVID-19 related expenses for enhanced
cleaning and sanitizing protocols across the Company's operations, which are
recorded in SG&A. Earnings from operations for the nine months ended September
30 were $764.8 million in 2020 compared with $700.4 million in 2019.

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
nine months ended September 30, consolidated other operating income, net, was
income of $59.6 million and $9.1 million in 2020 and 2019, respectively. The
2020 amount includes $69.9 million of nonrecurring gains on the sales of
investment land and divested assets in Austin, Texas; Riverside, California; and
Augusta, Kansas. These gains are recorded in the West Group. The 2019 amount
included the reversal of $6.9 million of accruals for sales tax and unclaimed
property contingencies.

Other nonoperating (income) and expenses, 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 nine months ended September
30, other nonoperating (income) and expenses, net, was income of $5.9 million in
2020 and an expense of $9.7 million in 2019. The 2020 amount reflected lower
pension expense of $8.9 million compared with the prior year and also included
an expense of $5.6 million to finance third-party railroad track maintenance.
The 2019 expense included a $15.7 million ($12.0 million net of tax)
out-of-period correction of a Company-identified overstatement of the investment
balance for a nonconsolidated equity affiliate.

Income Tax Expense



For the nine months ended September 30, 2020, the effective income tax rate
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. For the nine months ended September 30, 2019, the effective
income tax rate reflected a $13.2 million discrete benefit from a change in the
tax status of a subsidiary from a partnership to a corporation.

                                 Page 41 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)


LIQUIDITY AND CAPITAL RESOURCES



For the nine months ended September 30, cash provided by operating activities
was $684.0 million in 2020 compared with $649.8 million in 2019. 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,
                   2020            2019
                 (Dollars in Millions)
Depreciation   $       251.1      $ 234.3
Depletion               26.2         27.4
Amortization            14.9         15.3
Total          $       292.2      $ 277.0




The seasonal nature of construction activity impacts the Company's quarterly
operating cash flow when compared with the full year. Full-year 2019 net cash
provided by operating activities was $966.1 million.

During the nine months ended September 30, 2020, the Company paid $250.8 million 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 repurchased 210,616 shares of common stock during
the first nine months of 2020, at an aggregate cost of $50.0 million. Future
share repurchases are at the discretion of management and were temporarily
paused in March 2020 in light of the COVID-19 pandemic. Management may resume
share repurchases as circumstances dictate. At September 30, 2020, 13,520,952
shares of common stock were remaining under the Company's repurchase
authorization.

On March 5, 2020, the Company issued $500 million aggregate principal amount of
2.500% Senior Notes due 2030 (the 2.500% Senior Notes). The 2.500% Senior Notes
are carried net of original issue discount, which is being amortized by the
effective interest method over the life of the issue. The 2.500% Senior Notes
are redeemable prior to December 15, 2029 at their make-whole redemption price
at a discount rate of the U.S. Treasury Rate plus 30 basis points, or on or
after December 15, 2029 at a redemption price equal to 100% of the principal
amount plus accrued and unpaid interest to the date of redemption. The Company
used the net proceeds for general corporate purposes, including the repayment of
$300 million of floating rate senior notes at maturity in May 2020.

The Company, through a wholly-owned special-purpose subsidiary, has a $400 million trade receivable securitization facility (the Trade Receivable Facility). On September 23, 2020, the Company extended the maturity of the Trade Receivable Facility to September 22, 2021. The Trade Receivable Facility contains a cross-default provision to the Company's other debt agreements.



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

                                 Page 42 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



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.

At September 30, 2020, the Company's ratio of consolidated debt-to-consolidated
EBITDA, as defined by the Company's Revolving Facility, for the trailing-twelve
months was 1.94 times and was calculated as follows:



                                                                  October 1, 2019 to
                                                                  September 30, 2020
                                                                 (Dollars in Millions)
Earnings from continuing operations attributable to Martin
Marietta                                                        $                 669.0
Add back:
Income tax expense                                                                168.2
Interest expense                                                                  120.4
Depreciation, depletion and amortization expense                            

382.5


Stock-based compensation expense                                                   28.1

Deduct:
Interest income                                                            

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

                                                        $           

1,367.7

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


   is a co-borrower, at September 30, 2020                      $           

2,652.9

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


  Facility, at September 30, 2020 for the trailing-twelve
months EBITDA                                                                1.94 times




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.

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 when the
repurchase program is resumed and allow for payment of dividends for the
foreseeable future. Any future significant strategic acquisition for cash would
likely require

                                 Page 43 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



an appropriate balance of newly-issued equity with debt in order to maintain a
composite investment-grade credit rating. At September 30, 2020, the Company had
$1,097.7 million of unused borrowing capacity under its Revolving Facility and
Trade Receivable Facility, subject to complying with the related leverage
covenant. The Revolving Facility matures on December 5, 2024. Historically, the
Company has successfully extended the maturity dates of these credit
facilities. Further, as of September 30, 2020, the Company does not have any
publicly-traded debt that matures prior to 2024. While the future impact of the
COVID-19 pandemic is not currently quantifiable, management believes the
Company's liquidity is sufficient to meet its cash flow needs through the
foreseeable future.

As of September 30, 2020, the Company had restricted cash of $77.1 million for
the purchase of like-kind exchange replacement assets under Section 1031 of the
Internal Revenue Code (Section 1031) until January 27, 2021. In October 2020,
the Company transferred an additional $45.1 million from asset sales completed
in the third-quarter 2020 into a restricted Section 1031 account and has until
March 2021, to reinvest the funds in qualifying assets.

The Coronavirus Aid, Relief and Economic Security Act (CARES Act) was signed
into law in March 2020 and provides liquidity support for businesses. The CARES
Act allows the Company to defer the payment of 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. The Company estimates it will defer payment of
approximately $25 million under this provision.

The CARES Act also provides a quarterly refundable employee retention credit if
companies suspend operations due to government restrictions or experience a 50%
or more decline in quarterly revenues compared with the prior-year quarter. The
credit is equal to 50% of qualified wages, up to $10,000 per employee who is not
performing services for the Company. While the Company has had minimal
short-term shutdowns related to the COVID-19 pandemic such that the Company has
not utilized this aid, if future shutdowns are mandated and more extensive, the
Company would be eligible to claim this credit.

The CARES Act also includes other provisions, including increasing the interest
expense deduction limitation to 50% of adjusted taxable income and providing a
credit facility for investment-grade companies. The Company does not currently
expect the interest expense deduction provision to result in a change in its
ability to take a full income tax deduction. The Company also believes it has
adequate liquidity and does not currently expect to utilize the credit facility
under the CARES Act.

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, 2019. Management continues to
evaluate its exposure to all operating risks on an ongoing basis. A discussion
of risks and uncertainties related to the COVID-19 pandemic are included in

Part II, Item 1A Risk Factors of this report.

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

                                 Page 44 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)


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; the recent dramatic increases 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 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 in response to this decline, particularly in Texas and West Virginia;
increasing residential mortgage 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

                                 Page 45 of 53

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

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)



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 the 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 that of the Magnesia Specialties business that
is running at capacity; 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 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, 2019 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.

                                 Page 46 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                       For the Quarter September 30, 2020

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND

                             RESULTS OF OPERATIONS

                     Third Quarter Ended September 30, 2020

                                  (Continued)


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, 2019, by writing to:



Martin Marietta

Attn: Corporate Secretary

2710 Wycliff Road

Raleigh, North Carolina 27607-3033

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 create a part of, this report.


                                 Page 47 of 53

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MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

                                   FORM 10-Q

                    For the Quarter Ended September 30, 2020

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