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0001621563
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2024-05-01
                                 UNITED STATES                                  
                       SECURITIES AND EXCHANGE COMMISSION                       
                             Washington, D.C. 20549                             


                                      FORM                                      
                                      8-K                                       


                                 CURRENT REPORT                                 
                        PURSUANT TO SECTION 13 OR 15 (d)                        
                     OF THE SECURITIES EXCHANGE ACT OF 1934                     
               Date of report (Date of earliest event reported):                
                                  May 1, 2024                                   


                             Summit Materials, Inc.                             
             (Exact name of registrant as specified in its charter)             



           Delaware              001-36873         47-1984212      
 (State or Other Jurisdiction   (Commission     (I.R.S. Employer   
      of Incorporation)         File Number)   Identification No.) 

                                                                                
                             1801 California Street                             
                                       ,                                        
                                   Suite 3500                                   
                                     Denver                                     
                                       ,                                        
                                    Colorado                                    
                                     80202                                      
              (Address of Principal Executive Offices) (Zip Code)               
                                                                                
             Registrant's Telephone Number, Including Area Code:  (             
                                      303                                       
                                       )                                        
                                    893-0012                                    
                                                                                
                                 Not Applicable                                 
         (Former Name or Former Address, if Changed Since Last Report)          


Check the appropriate box below if the Form 8-K filing is intended to 
simultaneously satisfy the filing obligation of the registrant under any of 
the following provisions:


Written communications pursuant to Rule 425 under the Securities Act (17 CFR 
230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 
240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange 
Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange 
Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:

                Title of each class                  Trading Symbol(s)   Name of each exchange on which registered 
 Class A Common Stock (par value, $0.01 per share)          SUM                   New York Stock Exchange          

Indicate by check mark whether the registrant is an emerging growth company as 
defined in Rule 405 of the Securities Act of 1933 ((s)230.405 of this chapter) 
or Rule 12b-2 of the Securities Exchange Act of 1934 ((s)240.12b-2 of this 
chapter).

Emerging growth company

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

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Item 2.02
Results of Operations and Financial Condition
.

On
May 1, 2024
, Summit Materials, Inc. (the "Company") issued a press release announcing the 
results of the Company's operations for the fiscal quarter ended March 30, 
2024. A copy of the press release is furnished as Exhibit 99.1 to this Current 
Report on Form 8-K and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 
hereto, is being furnished pursuant to Item 2.02 of Form 8-K and shall not be 
deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act 
of 1934, as amended (the "Exchange Act"), or otherwise subject to the 
liabilities of that section, nor shall it be deemed incorporated by reference 
in any filing made by the Company under the Securities Act of 1933, as 
amended, or the Exchange Act, except as shall be expressly set forth by 
specific reference in such a filing.
Item 9.01
Financial Statements and Exhibits
.

(d)    Exhibits

 Exhibit No.                  Description                 
                                                                                               
99.1                                                       Press Release of Summit Materials,  
                                                           Inc. dated May 1, 2024.             
104.1         Cover Page Interactive Data File (embedded  
              within the Inline XBRL document)            

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                                   SIGNATURES                                   

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



                                                             
                                                             
              SUMMIT MATERIALS, INC.                         
                                                             
DATED:        By:      /s/ Christopher B. Gaskill            
May 1, 2024                                                  
              Name:    Christopher B. Gaskill                
              Title:   EVP, Chief Legal Officer & Secretary  


                                                                    Exhibit 99.1

           Summit Materials, Inc. Reports First Quarter 2024 Results            
    Margin Expansion Fueled by Pricing Momentum and Operational Improvements    
               Raises 2024 Synergy Target to At Least $40 million               
                         Adjusting 2024 Guidance Higher                         
DENVER, CO. - (
May 1, 2024
) -
Summit Materials, Inc. (NYSE: SUM) ("Summit," "Summit Materials," "Summit 
Inc." or the "Company"), market-leading producer of aggregates and cement 
company, today announced results for the first quarter ended March 30, 2024. 
All comparisons are versus the quarter ended April 1, 2023 unless noted
otherwise.


                                                                                                                       
                                                           Three months ended     
($ in thousands, except per share amounts)                         March 30, 2024      April 1, 2023      % Chg vs. PY 
Net revenue                                                         $ 773,229           $ 407,270             89.9    %
Operating loss                                                       (44,853)            (15,475)          (189.8)    %
Net loss                                                             (67,270)            (31,212)          (115.5)    %
Basic EPS                                                           $  (0.40)           $  (0.26)           (53.8)    %
                                                                                                                       
Adjusted Cash Gross Profit                                            181,004              81,351            122.5    %
Adjusted EBITDA                                                       121,225              41,201            194.2    %
Adjusted Diluted EPS                                                $  (0.12)           $  (0.26)             53.8    %


"I am delighted to report that our transformative combination with Argos USA 
is off to a strong start as we effectively, swiftly, and safely move to 
integrate our two businesses," remarked Anne Noonan, Summit Materials 
President and CEO. "This progress, together with a better than anticipated 
first quarter, improved synergy visibility, and a positive outlook allows us 
to increase the lower end of our full year 2024 guidance range. Today's 
updated outlook reflects our view that pricing momentum is healthy and 
persistent across our businesses, cost headwinds are decelerating, and demand 
conditions, in general, are accommodating of material margin expansion in 
2024. We expect this, combined with meaningful synergies, self-help 
operational improvements, and a more profitable portfolio will catalyze 
superior value creation for Summit shareholders. Moreover, with our leverage 
well below target we have a balance sheet that complements a promising 
pipeline of accretive, aggregates-oriented acquisition targets and the 
organization is well positioned to continue its financial and strategic 
progress in the year ahead."

2024 Guidance

  
  

For the full year 2024, Summit is currently projecting Adjusted EBITDA of 
approximately $970 million to $1,010 million and capital expenditures of 
approximately $430 million to $470 million.

Adjusted EBITDA is a non-GAAP measure. Refer to the "Non-GAAP Financial 
Measures" section for more information. Because GAAP financial measures on a 
forward-looking basis are not accessible, and reconciling information is not 
available without unreasonable effort, we have not provided reconciliations 
for forward-looking non-GAAP measures. For the same reasons, we are unable to 
address the probable significance of the unavailable information, which could 
be material to future results.

First Quarter 2024 | Total Company Results

  
  

Net revenue
increased $366.0 million, or 89.9% in the first quarter to $773.2 million, 
including the partial quarter impact of the Argos USA assets. In the quarter, 
$378.5 million of revenue was recognized from recent acquisitions which more 
than offset a decrease of $21.7 million in net revenue related to 
divestitures. Organic prices increased across all lines of business.


Operating loss
increased in the first quarter to $44.9 million, driven exclusively by $61.3 
million of transaction and integration costs related to the Argos USA 
transaction. Summit's operating margin percentage for the three months ended 
March 30, 2024, decreased to (5.8)% from (3.8)%, from the comparable period a 
year ago primarily reflecting the aforementioned transaction and integration 
costs related to the Argos USA transaction.

                                       1                                        
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Net loss attributable to Summit Inc.
increased to $66.9 million, or $(0.40) per basic share, compared to $30.8 
million, or $(0.26) per basic share in the comparable prior year period. 
Summit reported adjusted diluted net loss of $19.9 million, or $(0.12) per 
adjusted diluted share, compared to an adjusted diluted net loss of $30.7 
million, or $(0.26) per adjusted diluted share, in the prior year period.

Adjusted EBITDA
increased $80.0 million, or 194.2%, to $121.2 million reflecting the 
integration of and strong contribution from the new Argos USA cement assets as 
well as strong organic pricing growth across all lines of business.

First Quarter 2024 | Results by Line of Business

  
  

Aggregates Business:
Aggregates net revenues increased by $1.9 million to $145.5 million in the 
first quarter. Aggregates adjusted cash gross profit margin was 40.5% in the 
first quarter as compared to 35.0% in the prior year period. Aggregates sales 
volume decreased 7.3% in the first quarter. Organic aggregates sales volumes 
decreased 8.3% reflecting poor weather conditions in many markets and 
restrained residential activity. Average selling prices for aggregates 
increased 10.8%, reflecting both carry-over pricing from 2023 as well as price 
increases implemented across markets to start the year. Pricing growth was 
strongest in the East Segment, but both the West and East Segments recognized 
double-digit price increase over the prior year period.

Cement Business:
Cement Segment net revenues increased to $231.8 million in the first quarter. 
Cement Segment adjusted cash gross profit margin increased to 30.6% in the 
first quarter, compared to 9.6% in the prior year period, driven by pricing 
gains, operational efficiencies, and favorable year-on-year kiln fuel costs. 
Sales volume of cement increased 416.0% on a nominal basis and decreased 2.7% 
organically on unfavorable weather conditions. Organic average selling prices 
increased 5.6% in the first quarter due pricing actions implemented in 2023 
and price increases that went into effect at the beginning of 2024.

Products Business:
Products net revenues were $359.1 million in the first quarter, up 100.0% 
versus the prior year period. Products adjusted cash gross profit margin 
decreased to 12.3% in the first quarter. Organic average sales price for 
ready-mix concrete increased 8.3%, driven by pricing growth across all 
markets, including our key markets of Houston and Salt Lake City. Organic 
sales volumes of ready-mix concrete decreased 15.1% due to reduced residential 
activity. Organic average selling prices for asphalt increased 5.8%, due to 
pricing gains both the West and East Segment. Organic asphalt sales volume 
increased 9.4%, fueled by public infrastructure growth.

First Quarter 2024 | Results By Reporting Segment

  
  

West Segment:
The West Segment operating income increased $6.9 million to $12.6 million and 
Adjusted EBITDA of $43.4 million in the first quarter increased 32.8% versus 
the prior year period reflecting sustained pricing momentum, more favorable 
weather conditions in certain markets relative to the prior year period, and 
the contribution from Argos USA ready-mix concrete plants in the Houston 
market. Aggregates revenue increased 1.9%, including 10.0% pricing growth led 
by Houston and British Columbia performance while volume declined 7.4% due, in 
part, to unfavorable weather conditions in South Texas. Ready-mix concrete 
revenue increased 29.5% on 6.4% pricing growth and 21.9% volume growth. 
Organic ready-mix pricing increased 8.5% and because of subdued private 
construction activity, organic ready-mix volumes decreased 16.8% in the 
period. Asphalt revenue increased 16.6% due to volumes growth of 10.1%, 
including organic growth of 9.4%. Asphalt pricing increased 5.6% with strong 
gains in North Texas.

East Segment:
The East Segment operating income increased $11.0 million to $14.0 million and 
Adjusted EBITDA increased $18.6 million to $37.5 million. Aggregates revenue 
increased 3.4% versus the prior year period. Organic aggregates volumes 
decreased 7.8%, on unfavorable weather conditions and lower volumes in Kansas. 
Aggregates pricing increased 11.5% with solid growth across several markets, 
including Missouri and Kansas. Ready-mix concrete revenue increased $136.6 
million to $152.5 million due to the acquisition of the Argos USA ready-mix 
concrete operations in Florida, Georgia, and the Carolinas. Asphalt revenue 
decreased $2.5 million versus the prior year period.

Cement Segment:
The Cement Segment operating income increased 322.4% to $17.7 million. 
Adjusted EBITDA increased $59.4 million and Adjusted EBITDA margin increased 
to 25.7% from 0.0% in the year-ago period. As noted above, the Cement Segment 
reported an organic volume decrease of 2.7% and organic selling price growth 
of 5.6%.

Liquidity and Capital Resources

  
  

                                       2                                        
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As of March 30, 2024, the Company had $498.1 million in cash and $2.8 billion 
in debt outstanding. The Company's $625 million revolving credit facility has 
$604.1 million available after outstanding letters of credit.

For the quarter ended March 30, 2024, cash flow used in operations was $40.2 
million and cash paid for capital expenditures was $58.5 million.

Webcast and Conference Call Information

  
  

Summit Materials will conduct a conference call on Thursday, May 2, 2024, at 
12:00 p.m. eastern time (10:00 a.m. mountain time) to review the Company's 
first quarter 2024 financial results, discuss recent events and conduct a 
question-and-answer session.

A webcast of the conference call and accompanying presentation materials will 
be available in the Investors section of Summit's website at investors.summit-ma
terials.com. To listen to a live broadcast, go to the site at least 15 minutes 
prior to the scheduled start time in order to register, download, and install 
any necessary audio software.

A webcast of the conference call and accompanying presentation materials will 
be available in the Investors section of Summit's website at
investors.summit-materials.com
or at the following link:
https://events.q4inc.com/attendee/875793406.

To participate in the live teleconference for first quarter 2024 financial 
results:

North America Toll-Free:     1-888-330-3416
International Toll:        1-646-960-0820
Conference ID:            1542153

To listen to a replay of the teleconference, which will be available through 
May 9, 2024:

US & Canada Toll-Free:        1-800-770-2030
Conference ID:             1542153

About Summit Materials

  
  

Summit Materials is a market-leading producer of aggregates and cement with 
vertically integrated operations that supply ready-mix concrete and asphalt in 
select markets. Summit is a geographically diverse, materials-led business of 
scale that offers customers in the United States and British Columbia, Canada 
high quality products and services for the public infrastructure, residential 
and non-residential end markets. Summit has a strong track record of 
successful acquisitions since its founding and continues to pursue high-return 
growth opportunities in new and existing markets. For more information about 
Summit Materials, please visit
www.summit-materials.com
.


                                       3                                        
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Non-GAAP Financial Measures

  
  

The Securities and Exchange Commission ("SEC") regulates the use of "non-GAAP 
financial measures," such as Adjusted Net Income (Loss), Adjusted Diluted Net 
Loss, Adjusted Diluted EPS, Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted 
Cash Gross Profit, Adjusted Cash Gross Profit Margin, and Free Cash Flow which 
are derived on the basis of methodologies other than in accordance with U.S. 
generally accepted accounting principles ("U.S. GAAP"). We have provided these 
measures because, among other things, we believe that they provide investors 
with additional information to measure our performance, evaluate our ability 
to service our debt and evaluate certain flexibility under our restrictive 
covenants. Our Adjusted Net Income (Loss), Adjusted Diluted Net Loss, Adjusted 
Diluted EPS, Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted Cash Gross 
Profit, Adjusted Cash Gross Profit Margin, and Free Cash Flow may vary from 
the use of such terms by others and should not be considered as alternatives 
to or more important than net income (loss), operating income (loss), revenue 
or any other performance measures derived in accordance with U.S. GAAP as 
measures of operating performance or to cash flows as measures of liquidity.


Adjusted EBITDA, Adjusted EBITDA Margin, and other non-GAAP measures have 
important limitations as analytical tools, and you should not consider them in 
isolation or as substitutes for analysis of our results as reported under U.S. 
GAAP. Some of the limitations of Adjusted EBITDA, Adjusted EBITDA Margin and 
other non-GAAP measures are that these measures do not reflect: (i) our cash 
expenditures or future requirements for capital expenditures or contractual 
commitments; (ii) changes in, or cash requirements for, our working capital 
needs; (iii) interest expense or cash requirements necessary to service 
interest and principal payments on our debt; and (iv) income tax payments we 
are required to make. Because of these limitations, we rely primarily on our 
U.S. GAAP results and use Adjusted EBITDA, Adjusted EBITDA Margin and other 
non-GAAP measures on a supplemental basis.

Adjusted EBITDA, Adjusted EBITDA Margin, Adjusted Cash Gross Profit, Adjusted 
Cash Gross Profit Margin, Adjusted Net Income (Loss), Adjusted Diluted Net 
Loss, Adjusted Diluted EPS, and Free Cash Flow reflect additional ways of 
viewing aspects of our business that, when viewed with our GAAP results and 
the accompanying reconciliations to U.S. GAAP financial measures included in 
the tables attached to this press release, may provide a more complete 
understanding of factors and trends affecting our business. We strongly 
encourage investors to review our consolidated financial statements in their 
entirety and not rely on any single financial measure. Reconciliations of the 
non-GAAP measures used in this press release are included in the attached 
tables.
                                       4                                        
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Cautionary Statement Regarding Forward-Looking Statements

  
  

This press release includes "forward-looking statements" within the meaning of 
the federal securities laws, which involve risks and uncertainties. 
Forward-looking statements include all statements that do not relate solely to 
historical or current facts, and you can identify forward-looking statements 
because they contain words such as "believes," "expects," "may," "will," 
"outlook," "should," "seeks," "intends," "trends," "plans," "estimates," 
"projects" or "anticipates" or similar expressions that concern our strategy, 
plans, expectations or intentions. All statements made relating to our 
estimated and projected earnings, margins, costs, expenditures, cash flows, 
growth rates and financial results are forward-looking statements. These 
forward-looking statements are subject to risks, uncertainties and other 
factors that may cause our actual results, performance or achievements to be 
materially different from future results, performance or achievements 
expressed or implied by such forward-looking statements. We derive many of our 
forward-looking statements from our operating budgets and forecasts, which are 
based upon many detailed assumptions. While we believe that our assumptions 
are reasonable, it is very difficult to predict the effect of known factors, 
and, of course, it is impossible to anticipate all factors that could affect 
our actual results. In light of the significant uncertainties inherent in the 
forward-looking statements included herein, the inclusion of such information 
should not be regarded as a representation by us or any other person that the 
results or conditions described in such statements or our objectives and plans 
will be realized. Important factors could affect our results and could cause 
results to differ materially from those expressed in our forward-looking 
statements, including but not limited to the factors discussed in the section 
entitled "Risk Factors" in Summit Inc.'s Annual Report on Form 10-K for the 
fiscal year ended December 30, 2023, as filed with the SEC, and any factors 
discussed in the section entitled "Risk Factors" in any of our subsequently 
filed SEC filings; and the following:

-
our dependence on the construction industry and the strength of the local 
economies in which we operate, including residential;
-
the cyclical nature of our business;
-
risks related to weather and seasonality;
-
risks associated with our capital-intensive business;
-
competition within our local markets;
-
risks related to the integration of Argos USA and realization of intended 
benefits within the intended timeframe;
-
our ability to execute on our acquisition strategy and portfolio optimization 
strategy and, successfully integrate acquisitions with our existing operations;

-
our dependence on securing and permitting aggregate reserves in strategically 
located areas;
-
the impact of rising interest rates;
-
declines in public infrastructure construction and delays or reductions in 
governmental funding, including the funding by transportation authorities, the 
federal government and other state agencies particularly;
-
our reliance on private investment in infrastructure, which may be adversely 
affected by periods of economic stagnation and recession;
-
environmental, health, safety and climate change laws or governmental 
requirements or policies concerning zoning and land use;
-
rising prices for, or more limited availability of, commodities, labor and 
other production and delivery inputs as a result of inflation, supply chain 
challenges or otherwise;
-
our ability to accurately estimate the overall risks, requirements or costs 
when we bid on or negotiate contracts that are ultimately awarded to us;
-
material costs and losses as a result of claims that our products do not meet 
regulatory requirements or contractual specifications;
-
cancellation of a significant number of contracts or our disqualification from 
bidding for new contracts;
-
special hazards related to our operations that may cause personal injury or 
property damage not covered by insurance;
-
unexpected factors affecting self-insurance claims and reserve estimates;
-
our current level of indebtedness, including our exposure to variable interest 
rate risk;
-
potential incurrence of substantially more debt;
                                       5                                        
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-
restrictive covenants in the instruments governing our debt obligations;
-
our dependence on senior management and other key personnel, and our ability 
to retain qualified personnel;
-
supply constraints or significant price fluctuations in the electricity and 
petroleum-based resources that we use, including diesel and liquid asphalt;
-
climate change and climate change legislation or other regulations;
-
evolving corporate governance and corporate disclosure regulations and 
expectations, including with respect to environmental, social and governance 
matters;
-
unexpected operational difficulties;
-
costs associated with pending and future litigation;
-
interruptions in our information technology systems and infrastructure; 
including cybersecurity and data leakage risks;
-
potential labor disputes, strikes, other forms of work stoppage or other union 
activities; and
-
material or adverse effects related to the Argos USA combination.

All subsequent written and oral forward-looking statements attributable to us, 
or persons acting on our behalf, are expressly qualified in their entirety by 
these cautionary statements. Any forward-looking statement that we make herein 
speaks only as of the date of this press release. We undertake no obligation 
to publicly update or revise any forward-looking statement as a result of new 
information, future events or otherwise, except as required by law.

                                       6                                        
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                    SUMMIT MATERIALS, INC. AND SUBSIDIARIES                     
                Unaudited Consolidated Statements of Operations                 
              ($ in thousands, except share and per share amounts)              


                                                                                                                
                                                                         Three months ended    
                                                                                   March 30,         April 1,   
                                                                                      2024             2023     
                                                                                                                
Revenue:                                                                                                        
Product                                                                            $  728,694        $  372,172 
Service                                                                                44,535            35,098 
Net revenue                                                                           773,229           407,270 
Delivery and subcontract revenue                                                       31,786            28,118 
Total revenue                                                                         805,015           435,388 
Cost of revenue (excluding items shown separately below):                                                       
Product                                                                               556,020           295,881 
Service                                                                                36,205            30,038 
Net cost of revenue                                                                   592,225           325,919 
Delivery and subcontract cost                                                          31,786            28,118 
Total cost of revenue                                                                 624,011           354,037 
General and administrative expenses                                                    68,526            45,998 
Depreciation, depletion, amortization and accretion                                    95,971            50,894 
Transaction and integration costs                                                      62,208               364 
Gain on sale of property, plant and equipment                                           (848)             (430) 
Operating loss                                                                       (44,853)          (15,475) 
Interest expense                                                                       51,892            27,420 
Loss on debt financings                                                                 5,453               493 
                                                                                                                
Gain on sale of businesses                                                           (14,985)                 - 
Other income, net                                                                     (8,878)           (5,710) 
Loss from operations before taxes                                                    (78,335)          (37,678) 
Income tax benefit                                                                   (11,065)           (6,466) 
Net loss                                                                             (67,270)          (31,212) 
                                                                                                                
Net income attributable to Summit Holdings (1)                                          (404)             (408) 
Net loss attributable to Summit Inc.                                               $ (66,866)        $ (30,804) 
Loss per share of Class A common stock:                                                                         
Basic                                                                              $   (0.40)        $   (0.26) 
Diluted                                                                            $   (0.40)        $   (0.26) 
Weighted average shares of Class A common stock:                                                                
Basic                                                                             167,511,575       118,679,656 
Diluted                                                                           167,511,575       118,679,656 

________________________________________________________
(1) Represents portion of business owned by pre-IPO investors rather than by 
Summit.
                                       7                                        
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                    SUMMIT MATERIALS, INC. AND SUBSIDIARIES                     
                          Consolidated Balance Sheets                           
              ($ in thousands, except share and per share amounts)              

                                                                                       
                                                          March 30,       December 30, 
                                                            2024              2023     
                                                         (unaudited)       (audited)   
                       Assets                                                          
Current assets:                                                                        
Cash and cash                                           $   498,110      $   374,162   
equivalents                                                                            
Restricted cash                                                   -          800,000   
Accounts                                                    454,650          287,252   
receivable, net                                                                        
Costs and estimated                                          11,681           10,289   
earnings                                                                               
in excess                                                                              
of billings                                                                            
Inventories                                                 338,501          241,350   
Other current                                                40,644           17,937   
assets                                                                                 
Current assets                                                1,375            1,134   
held for sale                                                                          
Total current                                             1,344,961        1,732,124   
assets                                                                                 
Property,                                                 4,417,355        1,976,820   
plant and                                                                              
equipment, net                                                                         
Goodwill                                                  1,990,482        1,224,861   
Intangible                                                  179,587           68,081   
assets, net                                                                            
Deferred                                                          -           52,009   
tax assets                                                                             
Operating lease                                              89,251           36,553   
right-of-use                                                                           
assets                                                                                 
Other assets                                                108,264           59,134   
                                                                                       
Total assets                                            $ 8,129,900      $ 5,149,582   
                  Liabilities and                                                      
                Stockholders' Equity                                                   
Current liabilities:                                                                   
Current                                                 $     7,575      $     3,822   
portion                                                                                
of debt                                                                                
Current portion of                                            8,993            7,007   
acquisition-related                                                                    
liabilities                                                                            
Accounts payable                                            290,914          123,621   
Accrued expenses                                            191,776          171,691   
Current operating                                            16,745            8,596   
lease liabilities                                                                      
Billings in                                                   6,005            8,228   
excess of costs                                                                        
and estimated                                                                          
earnings                                                                               
                                                                                       
Total current                                               522,008          322,965   
liabilities                                                                            
Long-term debt                                            2,772,709        2,283,639   
Acquisition-related                                          20,655           28,021   
liabilities                                                                            
Tax receivable                                               44,267           41,276   
agreement                                                                              
liability                                                                              
Deferred tax                                                205,669           15,854   
liabilities                                                                            
Noncurrent                                                   78,618           33,230   
operating                                                                              
lease liabilities                                                                      
Other noncurrent                                            267,337          108,017   
liabilities                                                                            
                                                                                       
Total liabilities                                         3,911,263        2,833,002   
Stockholders' equity:                                                                  
Class A common stock, par value $0.01 per share;              1,755            1,196   
1,000,000,000 shares authorized, 175,454,250 and                                       
119,529,380 shares issued and outstanding as of                                        
March 30, 2024 and December 30, 2023, respectively                                     
Class B common stock, par value $0.01 per                         -                -   
share; 250,000,000 shares authorized, 0 and 99                                         
shares issued and outstanding as of March 30,                                          
2024 and December 30, 2023, respectively                                               
Preferred Stock, par value $0.01 per share;                       -                -   
250,000,000 shares authorized, 1 and 0                                                 
shares issued and outstanding as of March 30,                                          
2024 and December 30, 2023, respectively                                               
Additional                                                3,403,307        1,421,813   
paid-in capital                                                                        
Accumulated                                                 809,885          876,751   
earnings                                                                               
Accumulated other                                             3,690            7,275   
comprehensive                                                                          
income                                                                                 
Stockholders'                                             4,218,637        2,307,035   
equity                                                                                 
Noncontrolling                                                    -            9,545   
interest                                                                               
in Summit Holdings                                                                     
Total                                                     4,218,637        2,316,580   
stockholders'                                                                          
equity                                                                                 
Total                                                   $ 8,129,900      $ 5,149,582   
liabilities and                                                                        
stockholders'                                                                          
equity                                                                                 


                                       8                                        
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                    SUMMIT MATERIALS, INC. AND SUBSIDIARIES                     
                Unaudited Consolidated Statements of Cash Flows                 
                                ($ in thousands)                                

                                                                                                                     
                                                                                              Three months ended     
                                                                                           March 30,       April 1,  
                                                                                             2024            2023    
Cash flows from operating activities:                                                                                
Net loss                                                                                   $ (67,270)     $ (31,212) 
Adjustments to reconcile net income to net cash provided by operating activities:                                    
Depreciation, depletion, amortization and accretion                                           106,354         53,927 
Share-based compensation expense                                                                6,720          4,708 
Net gain on asset and business disposals                                                     (15,834)          (868) 
Non-cash loss on debt financings                                                                5,453            161 
Change in deferred tax asset, net                                                            (19,054)        (7,522) 
Other                                                                                             748             26 
Decrease (increase) in operating assets, net of acquisitions and dispositions:                                       
Accounts receivable, net                                                                     (11,127)         20,414 
Inventories                                                                                   (5,302)       (20,960) 
Costs and estimated earnings in excess of billings                                            (1,799)        (7,868) 
Other current assets                                                                          (1,973)        (3,748) 
Other assets                                                                                    4,839          2,239 
(Decrease) increase in operating liabilities, net of acquisitions and dispositions:                                  
Accounts payable                                                                               21,177         20,987 
Accrued expenses                                                                             (60,842)       (27,968) 
Billings in excess of costs and estimated earnings                                            (1,780)        (1,507) 
Tax receivable agreement (benefit) expense                                                      6,227          (531) 
Other liabilities                                                                             (6,782)             57 
Net cash (used in) provided by operating activities                                          (40,245)            335 
Cash flows from investing activities:                                                                                
Acquisitions, net of cash acquired                                                        (1,100,919)       (55,477) 
Purchase of intellectual property                                                            (21,400)              - 
Purchases of property, plant and equipment                                                   (58,519)       (63,584) 
Proceeds from the sale of property, plant and equipment                                         2,664          1,777 
Proceeds from sale of businesses                                                               75,993              - 
Other                                                                                         (1,240)        (1,045) 
Net cash used in investing activities                                                     (1,103,421)      (118,329) 
Cash flows from financing activities:                                                                                
                                                                                                                     
                                                                                                                     
Proceeds from debt issuances                                                                1,007,475              - 
Debt issuance costs                                                                          (17,550)        (1,566) 
Payments on debt                                                                            (506,392)        (4,414) 
                                                                                                                     
Payments on acquisition-related liabilities                                                   (6,124)       (11,374) 
                                                                                                                     
                                                                                                                     
Proceeds from stock option exercises                                                              593             15 
Other                                                                                         (9,260)        (5,719) 
Net cash provided by (used in) financing activities                                           468,742       (23,058) 
Impact of foreign currency on cash                                                            (1,128)             58 
Net decrease in cash and cash equivalents and restricted cash                               (676,052)      (140,994) 
Cash and cash equivalents and restricted cash-beginning of period                           1,174,162        520,451 
Cash and cash equivalents and restricted cash-end of period                                $  498,110     $  379,457 

                                       9                                        
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                    SUMMIT MATERIALS, INC. AND SUBSIDIARIES                     
             Unaudited Revenue Data by Segment and Line of Business             
                                ($ in thousands)                                

                                                                                                      
                                    Three months ended                    Twelve      
                                                                       months ended   
                                  March 30,      April 1,                  March 30,        April 1,  
                                    2024           2023                       2024            2023    
Segment Net                                                                                           
Revenue:                                                                                              
West                              $  283,605    $  234,370                $  1,522,106    $  1,270,409
East                                 257,841       118,783                     726,273         600,822
Cement                               231,783        54,117                     560,316         365,628
Net                               $  773,229    $  407,270                $  2,808,695    $  2,236,859
Revenue                                                                                               
                                                                                                      
Line of Business                                                                                      
- Net Revenue:                                                                                        
Materials                                                                                             
Aggregates                        $  145,511    $  143,653                $    665,409    $    604,253
Cement (1)                           224,097        49,013                     530,870         338,977
Products                             359,086       179,506                   1,297,907       1,006,803
Total Materials                      728,694       372,172                   2,494,186       1,950,033
and Products                                                                                          
Services                              44,535        35,098                     314,509         286,826
Net                               $  773,229    $  407,270                $  2,808,695    $  2,236,859
Revenue                                                                                               
                                                                                                      
Line of Business -                                                                                    
Net Cost of Revenue:                                                                                  
Materials                                                                                             
Aggregates                        $   86,514    $   93,335                $    325,732    $    315,302
Cement                               153,192        43,835                     298,944         191,188
Products                             314,945       157,241                   1,072,088         832,478
Total Materials                      554,651       294,411                   1,696,764       1,338,968
and Products                                                                                          
Services                              37,574        31,508                     255,218         234,762
Net Cost                          $  592,225    $  325,919                $  1,951,982    $  1,573,730
of Revenue                                                                                            
                                                                                                      
Line of Business - Adjusted                                                                           
Cash Gross Profit (2):                                                                                
Materials                                                                                             
Aggregates                        $   58,997    $   50,318                $    339,677    $    288,951
Cement (3)                            70,905         5,178                     231,926         147,789
Products                              44,141        22,265                     225,819         174,325
Total Materials                      174,043        77,761                     797,422         611,065
and Products                                                                                          
Services                               6,961         3,590                      59,291          52,064
Adjusted Cash                     $  181,004    $   81,351                $    856,713    $    663,129
Gross Profit                                                                                          
                                                                                                      
Adjusted Cash Gross                                                                                   
Profit Margin (2)                                                                                     
Materials                                                                                             
Aggregates                          40.5   %      35.0   %                   51.0    %       47.8    %
Cement                              30.6   %       9.6   %                   41.4    %       40.4    %
(3)                                                                                                   
Products                            12.3   %      12.4   %                   17.4    %       17.3    %
Services                            15.6   %      10.2   %                   18.9    %       18.2    %
Total Adjusted Cash                 23.4   %      20.0   %                   30.5    %       29.6    %
Gross Profit Margin                                                                                   

________________________________________________________
(1) Net revenue for the cement line of business excludes revenue associated 
with hazardous and non-hazardous waste, which is processed into fuel and used 
in the cement plants and is included in services net revenue. Additionally, 
net revenue from cement swaps and other cement-related products are included 
in products net revenue.
(2) Adjusted cash gross profit is calculated as net revenue by line of 
business less net cost of revenue by line of business. Adjusted cash gross 
profit margin is defined as adjusted cash gross profit divided by net revenue.

(3) The cement adjusted cash gross profit includes the earnings from the waste 
processing operations, cement swaps and other products. Cement line of 
business adjusted cash gross profit margin is defined as cement adjusted cash 
gross profit divided by cement segment net revenue.

                                       10                                       
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                    SUMMIT MATERIALS, INC. AND SUBSIDIARIES                     
                     Unaudited Volume and Price Statistics                      
                              (Units in thousands)                              
                                                                                

                                                                                                                            
                                                                                  Three months ended     
Total Volume                                                                              March 30, 2024      April 1, 2023 
Aggregates (tons)                                                                            11,654              12,572     
Cement (tons)                                                                                 1,739                 337     
Ready-mix concrete (cubic yards)                                                              1,897                 951     
Asphalt (tons)                                                                                  319                 325     
                                                                                                                            
                                                                                  Three months ended     
Pricing                                                                                   March 30, 2024      April 1, 2023 
Aggregates (per ton)                                                                        $ 14.89             $ 13.44     
Cement (per ton)                                                                             152.11              147.41     
Ready-mix concrete (per cubic yards)                                                         164.59              146.29     
Asphalt (per ton)                                                                             88.09               82.33     
                                                                                                                            
                                                                                  Three months ended     
                                                                                 Percentage Change in    
Year over Year Comparison                                                                     Volume             Pricing    
Aggregates (per ton)                                                                          (7.3)     %          10.8    %
Cement (per ton)                                                                              416.0     %           3.2    %
Ready-mix concrete (per cubic yards)                                                           99.5     %          12.5    %
Asphalt (per ton)                                                                             (1.8)     %           7.0    %
                                                                                                                            
                                                                                  Three months ended     
                                                                                 Percentage Change in    
Year over Year Comparison (Excluding acquisitions & divestitures)                             Volume             Pricing    
Aggregates (per ton)                                                                          (8.3)     %          10.4    %
Cement (per ton)                                                                              (2.7)     %           5.6    %
Ready-mix concrete (per cubic yards)                                                         (15.1)     %           8.3    %
Asphalt (per ton)                                                                               9.4     %           5.8    %



                                       11                                       
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                    SUMMIT MATERIALS, INC. AND SUBSIDIARIES                     
 Unaudited Reconciliations of Gross Revenue to Net Revenue by Line of Business  
             ($ and Units in thousands, except pricing information)             


                                                                                                         
                                                Three months ended March 30, 2024                        
                                                   Gross Revenue          Intercompany            Net    
                         Volumes      Pricing       by Product        Elimination/Delivery      Revenue  
Aggregates               11,654      $ 14.89        $ 173,497             $ (27,986)           $ 145,511 
Cement                    1,739       152.11          264,492               (40,395)             224,097 
Materials                                           $ 437,989             $ (68,381)           $ 369,608 
Ready-mix concrete        1,897       164.59          312,155                  (108)             312,047 
Asphalt                     319        88.09           28,119                  (134)              27,985 
Other Products                                         71,754               (52,700)              19,054 
Products                                            $ 412,028             $ (52,942)           $ 359,086 


                                       12                                       
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                    SUMMIT MATERIALS, INC. AND SUBSIDIARIES                     
            Unaudited Reconciliations of Non-GAAP Financial Measures            
              ($ in thousands, except share and per share amounts)              
The tables below reconcile our net loss to Adjusted EBITDA and Adjusted EBITDA 
Margin by segment and on a consolidated basis for the three months ended March 
30, 2024 and April 1, 2023.

                                                                                                                                   
Reconciliation of Net Income (Loss) to Adjusted EBITDA                         Three months ended March 30, 2024                   
by Segment                                                    West          East         Cement       Corporate       Consolidated 
($ in thousands)                                                                                                                   
Net income (loss)                                           $  18,950     $  34,491    $   24,993    $  (145,704)       $  (67,270)
Interest (income) expense                                     (6,763)       (4,572)       (6,354)          69,581            51,892
Income tax expense (benefit)                                      509             -             -        (11,574)          (11,065)
Depreciation, depletion and amortization                       29,894        22,559        40,663           1,847            94,963
EBITDA                                                      $  42,590     $  52,478    $   59,302    $   (85,850)       $    68,520
Accretion                                                         444           522            42               -             1,008
Loss on debt financings                                             -             -             -           5,453             5,453
                                                                                                                                   
Loss (gain) on sale of businesses                                 844      (15,829)             -               -          (14,985)
Non-cash compensation                                               -             -             -           6,720             6,720
Argos USA acquisition and integration costs                         -            62           110          61,122            61,294
Other                                                           (478)           243             -         (6,550)           (6,785)
Adjusted EBITDA                                             $  43,400     $  37,476    $   59,454    $   (19,105)       $   121,225
Adjusted EBITDA Margin (1)                                   15.3   %      14.5   %      25.7   %                         15.7    %
                                                                                                                                   
Reconciliation of Net Income (Loss) to Adjusted EBITDA                         Three months ended April 1, 2023                    
by Segment                                                    West          East         Cement       Corporate       Consolidated 
($ in thousands)                                                                                                                   
Net income (loss)                                           $   8,922     $   5,938    $  (3,025)    $   (43,047)       $  (31,212)
Interest (income) expense                                     (3,331)       (2,762)       (4,963)          38,476            27,420
Income tax expense (benefit)                                      739             -             -         (7,205)           (6,466)
Depreciation, depletion and amortization                       26,123        15,097         7,980             988            50,188
EBITDA                                                      $  32,453     $  18,273    $      (8)    $   (10,788)       $    39,930
Accretion                                                         250           438            18               -               706
Loss on debt financings                                             -             -             -             493               493
                                                                                                                                   
                                                                                                                                   
Non-cash compensation                                               -             -             -           4,708             4,708
                                                                                                                                   
Other                                                            (25)           141             -         (4,752)           (4,636)
Adjusted EBITDA                                             $  32,678     $  18,852    $       10    $   (10,339)       $    41,201
Adjusted EBITDA Margin (1)                                   13.9   %      15.9   %         -   %                         10.1    %

________________________________________________
(1) Adjusted EBITDA Margin is defined as Adjusted EBITDA as a percentage of 
net revenue.

                                       13                                       
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The table below reconciles our net loss attributable to Summit Materials, Inc. 
to adjusted diluted net loss per share for the three months ended March 30, 
2024 and April 1, 2023. The per share amount of the net loss attributable to 
Summit Materials, Inc. presented in the table is calculated using the total 
equity interests for the purpose of reconciling to adjusted diluted net loss 
per share.

                                                                                                                     
                                          Three months ended              
                                       March 30, 2024              April 1, 2023       
Reconciliation                                                    Net            Per            Net            Per   
of Net Loss Per                                                  Loss          Equity          Loss          Equity  
Share to Adjusted                                                               Unit                          Unit   
Diluted EPS                                                                                                          
Net loss                                                       $ (66,866)     $ (0.40)       $ (30,804)     $ (0.26) 
attributable to                                                                                                      
Summit                                                                                                               
Materials, Inc.                                                                                                      
Adjustments:                                                                                                         
Net loss                                                            (404)            -            (408)            - 
attributable to                                                                                                      
noncontrolling                                                                                                       
interest                                                                                                             
Argos USA                                                          51,583         0.31                -            - 
acquisition and                                                                                                      
integration                                                                                                          
costs, net of tax                                                                                                    
Gain on                                                           (9,699)       (0.06)                -            - 
sale of                                                                                                              
businesses,                                                                                                          
net of tax                                                                                                           
Loss on                                                             5,453         0.03              493            - 
debt                                                                                                                 
financings                                                                                                           
                                                                                                                     
                                                                                                                     
                                                                                                                     
                                                                                                                     
                                                                                                                     
Adjusted                                                       $ (19,933)     $ (0.12)       $ (30,719)     $ (0.26) 
diluted                                                                                                              
net                                                                                                                  
loss                                                                                                                 
Weighted-average                                                                                                     
shares:                                                                                                              
Basic                                                         167,446,041                   118,564,556              
Class A                                                                                                              
common                                                                                                               
stock                                                                                                                
LP                                                                511,565                     1,311,257              
Units                                                                                                                
outstanding                                                                                                          
Total                                                         167,957,606                   119,875,813              
equity                                                                                                               
units                                                                                                                


The following table reconciles operating loss to Adjusted Cash Gross Profit 
and Adjusted Cash Gross Profit Margin for the three months ended March 30, 
2024 and April 1, 2023.

                                                                                                                                
                                                                                           Three months ended    
                                                                                                       March 30,      April 1,  
Reconciliation of Operating Loss to Adjusted Cash Gross Profit                                           2024           2023    
($ in thousands)                                                                                                                
Operating loss                                                                                        $  (44,853)    $  (15,475)
General and administrative expenses                                                                        68,526         45,998
Depreciation, depletion, amortization and accretion                                                        95,971         50,894
Transaction and integration costs                                                                          62,208            364
Gain on sale of property, plant and equipment                                                               (848)          (430)
Adjusted Cash Gross Profit (exclusive of items shown separately)                                      $   181,004    $    81,351
Adjusted Cash Gross Profit Margin (exclusive of items shown separately) (1)                             23.4    %      20.0    %

_______________________________________________________
(1) Adjusted Cash Gross Profit Margin is defined as Adjusted Cash Gross Profit 
as a percentage of net revenue.

The following table reconciles net cash (used in) provided by operating 
activities to free cash flow for the three months ended March 30, 2024 and 
April 1, 2023.

                                                                                                        
                                                                   Three months ended    
                                                                              March 30,       April 1,  
($ in thousands)                                                                2024            2023    
Net loss                                                                    $ (67,270)       $ (31,212) 
Non-cash items                                                                  84,387           50,432 
Net loss adjusted for non-cash items                                            17,117           19,220 
Change in working capital accounts                                            (57,362)         (18,885) 
Net cash (used in) provided by operating activities                           (40,245)              335 
Capital expenditures, net of asset sales                                      (55,855)         (61,807) 
Free cash flow                                                              $ (96,100)       $ (61,472) 


Contact:

Andy Larkin
VP, Investor Relations
                                       14                                       
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andy.larkin@summit-materials.com
720-618-6013


                                       15                                       
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