# EDGAR Filing Document

**Accession Number:** 0001955520
**File Stem:** 0001955520-25-000060
**Filing Date:** 2025-8
**Character Count:** 211904
**Document Hash:** f35e97c945bf73387146da509951b300
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001955520-25-000060.hdr.sgml**: 20250805

**ACCESSION NUMBER**: 0001955520-25-000060

**CONFORMED SUBMISSION TYPE**: 10-Q

**PUBLIC DOCUMENT COUNT**: 92

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250805

**DATE AS OF CHANGE**: 20250805

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Knife River Corp
- **CENTRAL INDEX KEY:** 0001955520
- **STANDARD INDUSTRIAL CLASSIFICATION:** MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 921008893
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41642
- **FILM NUMBER:** 251185601

**BUSINESS ADDRESS:**
- **STREET 1:** 1150 W. CENTURY AVE,
- **CITY:** BISMARCK
- **STATE:** ND
- **ZIP:** 58503
- **BUSINESS PHONE:** 701-530-1400

**MAIL ADDRESS:**
- **STREET 1:** 1150 WEST CENTURY AVENUE
- **CITY:** BISMARCK
- **STATE:** ND
- **ZIP:** 58503

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Knife River Holding Co
- **DATE OF NAME CHANGE:** 20221121

?xml version='1.0' encoding='ASCII'? knf-20250630

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

**FORM 10-Q** 

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

For the quarterly period ended June 30, 2025

OR

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

For the transition period from _____________ to ______________

Commission file number 1-41642

**Knife River Corporation** 

(Exact name of registrant as specified in its charter)

Delaware 92-1008893 <br> (State or other jurisdiction ofincorporation or organization) (I.R.S. Employer Identification No.)

1150 West Century Avenue

P.O. Box 5568

Bismarck, North Dakota 58506-5568

(Address of principal executive offices)

(Zip Code)

(701) 530-1400

(Registrant's telephone number, including area code)

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

---

| | | |
|:---|:---|:---|
| <u>Title of each class</u> | <u>Trading symbol(s)</u> | <u>Name of each exchange on which registered</u> |
| Common Stock, $0.01 par value | KNF | New York Stock Exchange |

---

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐.

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐.

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

---

| | | | |
|:---|:---|:---|:---|
| Large Accelerated Filer  | ☒ | Accelerated Filer | ☐ |
| Non-Accelerated Filer  | ☐ | Smaller Reporting Company | ☐ |
| | | Emerging Growth Company | ☐ |

---

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

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒.

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of July 31, 2025: 56,664,165 shares.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

---

| | |
|:---|:---|
| Index | Index |
|  | Page |
| [Introduction](#i75870394d58c4cd49c7ab8c1905535b7_10) | [3](#i75870394d58c4cd49c7ab8c1905535b7_10) |
| [Part I -- Financial Information](#i75870394d58c4cd49c7ab8c1905535b7_13) |  |
| &nbsp;&nbsp;[Item 1. Financial Statements](#i75870394d58c4cd49c7ab8c1905535b7_16) | [4](#i75870394d58c4cd49c7ab8c1905535b7_16) |
| &nbsp;&nbsp;&nbsp;&nbsp;[Consolidated Statements of Operations -- Three](#i75870394d58c4cd49c7ab8c1905535b7_19)[and Si](#i75870394d58c4cd49c7ab8c1905535b7_19)[x](#i75870394d58c4cd49c7ab8c1905535b7_19)[Months Ended](#i75870394d58c4cd49c7ab8c1905535b7_19)[June 30](#i75870394d58c4cd49c7ab8c1905535b7_19)[, 2025 and 2024](#i75870394d58c4cd49c7ab8c1905535b7_19) | [4](#i75870394d58c4cd49c7ab8c1905535b7_19) |
| &nbsp;&nbsp;&nbsp;&nbsp;[Consolidated Statements of Comprehensive Income -- Three](#i75870394d58c4cd49c7ab8c1905535b7_22)[and Six](#i75870394d58c4cd49c7ab8c1905535b7_22)[Months Ended](#i75870394d58c4cd49c7ab8c1905535b7_22)[June 30](#i75870394d58c4cd49c7ab8c1905535b7_22)[, 2025 and 2024](#i75870394d58c4cd49c7ab8c1905535b7_22) | [5](#i75870394d58c4cd49c7ab8c1905535b7_22) |
| &nbsp;&nbsp;&nbsp;&nbsp;[Consolidated Balance Sheets --](#i75870394d58c4cd49c7ab8c1905535b7_25)[June 30](#i75870394d58c4cd49c7ab8c1905535b7_25)[, 2025 and 2024, and December 31, 2024](#i75870394d58c4cd49c7ab8c1905535b7_25) | [6](#i75870394d58c4cd49c7ab8c1905535b7_25) |
| &nbsp;&nbsp;&nbsp;&nbsp;[Consolidated Statements of Equity -- Three](#i75870394d58c4cd49c7ab8c1905535b7_28)[and Six](#i75870394d58c4cd49c7ab8c1905535b7_28)[Months Ended](#i75870394d58c4cd49c7ab8c1905535b7_28)[June 30](#i75870394d58c4cd49c7ab8c1905535b7_28)[, 2025 and 2024](#i75870394d58c4cd49c7ab8c1905535b7_28) | [7](#i75870394d58c4cd49c7ab8c1905535b7_28) |
| &nbsp;&nbsp;&nbsp;&nbsp;[Consolidated Statements of Cash Flows --](#i75870394d58c4cd49c7ab8c1905535b7_31)[Six](#i75870394d58c4cd49c7ab8c1905535b7_31)[Months Ended](#i75870394d58c4cd49c7ab8c1905535b7_31)[June 30](#i75870394d58c4cd49c7ab8c1905535b7_31)[, 2025 and 2024](#i75870394d58c4cd49c7ab8c1905535b7_31) | [8](#i75870394d58c4cd49c7ab8c1905535b7_31) |
| &nbsp;&nbsp;&nbsp;&nbsp;[Notes to Consolidated Financial Statements](#i75870394d58c4cd49c7ab8c1905535b7_34) | [9](#i75870394d58c4cd49c7ab8c1905535b7_34) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[1. Background](#i75870394d58c4cd49c7ab8c1905535b7_37) | [9](#i75870394d58c4cd49c7ab8c1905535b7_37) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[2. Basis of presentation](#i75870394d58c4cd49c7ab8c1905535b7_43) | [9](#i75870394d58c4cd49c7ab8c1905535b7_43) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[3. New accounting standards](#i75870394d58c4cd49c7ab8c1905535b7_46) | [10](#i75870394d58c4cd49c7ab8c1905535b7_46) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[4. Receivables and allowance for expected credit losses](#i75870394d58c4cd49c7ab8c1905535b7_52) | [11](#i75870394d58c4cd49c7ab8c1905535b7_52) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[5. Inventories](#i75870394d58c4cd49c7ab8c1905535b7_55) | [12](#i75870394d58c4cd49c7ab8c1905535b7_55) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[6. Net income (loss) per share](#i75870394d58c4cd49c7ab8c1905535b7_58) | [12](#i75870394d58c4cd49c7ab8c1905535b7_58) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[7. Accumulated other comprehensive loss](#i75870394d58c4cd49c7ab8c1905535b7_64) | [12](#i75870394d58c4cd49c7ab8c1905535b7_64) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[8. Revenue from contracts with customers](#i75870394d58c4cd49c7ab8c1905535b7_67) | [12](#i75870394d58c4cd49c7ab8c1905535b7_67) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[9. Uncompleted contracts](#i75870394d58c4cd49c7ab8c1905535b7_70) | [14](#i75870394d58c4cd49c7ab8c1905535b7_70) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[10. Acquisitions and Dispositions](#i75870394d58c4cd49c7ab8c1905535b7_73) | [15](#i75870394d58c4cd49c7ab8c1905535b7_73) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[11. Goodwill and other intangible assets](#i75870394d58c4cd49c7ab8c1905535b7_76) | [17](#i75870394d58c4cd49c7ab8c1905535b7_76) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[12. Fair value measurements](#i75870394d58c4cd49c7ab8c1905535b7_79) | [18](#i75870394d58c4cd49c7ab8c1905535b7_79) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[13. Debt](#i75870394d58c4cd49c7ab8c1905535b7_82) | [20](#i75870394d58c4cd49c7ab8c1905535b7_82) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[14. Cash flow information](#i75870394d58c4cd49c7ab8c1905535b7_88) | [21](#i75870394d58c4cd49c7ab8c1905535b7_88) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[15. Business segment data](#i75870394d58c4cd49c7ab8c1905535b7_91) | [21](#i75870394d58c4cd49c7ab8c1905535b7_91) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[16. Commitments and contingencies](#i75870394d58c4cd49c7ab8c1905535b7_97) | [24](#i75870394d58c4cd49c7ab8c1905535b7_97) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[17. Related-party transactions](#i75870394d58c4cd49c7ab8c1905535b7_103) | [25](#i75870394d58c4cd49c7ab8c1905535b7_103) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[18. Subsequent event](#i75870394d58c4cd49c7ab8c1905535b7_106) | [25](#i75870394d58c4cd49c7ab8c1905535b7_106) |
| &nbsp;&nbsp;[Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations](#i75870394d58c4cd49c7ab8c1905535b7_109) | [26](#i75870394d58c4cd49c7ab8c1905535b7_109) |
| &nbsp;&nbsp;[Item 3. Quantitative and Qualitative Disclosures About Market Risk](#i75870394d58c4cd49c7ab8c1905535b7_169) | [41](#i75870394d58c4cd49c7ab8c1905535b7_169) |
| &nbsp;&nbsp;[Item 4. Controls and Procedures](#i75870394d58c4cd49c7ab8c1905535b7_172) | [41](#i75870394d58c4cd49c7ab8c1905535b7_172) |
| [Part II -- Other Information](#i75870394d58c4cd49c7ab8c1905535b7_175) |  |
| &nbsp;&nbsp;[Item 1. Legal Proceedings](#i75870394d58c4cd49c7ab8c1905535b7_178) | [42](#i75870394d58c4cd49c7ab8c1905535b7_178) |
| &nbsp;&nbsp;[Item 1A. Risk Factors](#i75870394d58c4cd49c7ab8c1905535b7_181) | [42](#i75870394d58c4cd49c7ab8c1905535b7_181) |
| &nbsp;&nbsp;[Item 2. Unregistered Sales of Equity Securities and Use of Proceeds](#i75870394d58c4cd49c7ab8c1905535b7_184) | [42](#i75870394d58c4cd49c7ab8c1905535b7_184) |
| &nbsp;&nbsp;[Item 3. Defaults Upon Senior Securities](#i75870394d58c4cd49c7ab8c1905535b7_187) | [42](#i75870394d58c4cd49c7ab8c1905535b7_187) |
| &nbsp;&nbsp;[Item 4. Mine Safety Disclosures](#i75870394d58c4cd49c7ab8c1905535b7_190) | [42](#i75870394d58c4cd49c7ab8c1905535b7_190) |
| &nbsp;&nbsp;[Item 5. Other Information](#i75870394d58c4cd49c7ab8c1905535b7_193) | [42](#i75870394d58c4cd49c7ab8c1905535b7_193) |
| &nbsp;&nbsp;[Item 6. Exhibits](#i75870394d58c4cd49c7ab8c1905535b7_196) | [42](#i75870394d58c4cd49c7ab8c1905535b7_196) |
| [Exhibits Index](#i75870394d58c4cd49c7ab8c1905535b7_199) | [43](#i75870394d58c4cd49c7ab8c1905535b7_199) |
| [Signatures](#i75870394d58c4cd49c7ab8c1905535b7_202) | [44](#i75870394d58c4cd49c7ab8c1905535b7_202) |

---

Unless otherwise stated or the context otherwise requires, references in this report to "Knife River," the "Company," "we," "our," or "us" refer to Knife River Corporation and its consolidated subsidiaries.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**<u>Introduction</u>**

Knife River is an aggregates-led construction materials and contracting services provider in the United States. Our 1.2 billion tons of aggregate reserves, as of December 31, 2024, provide the foundation for our vertically integrated business strategy, with approximately 37 percent of our aggregates being used internally to support value-added downstream products (ready-mix concrete and asphalt) and contracting services (heavy-civil construction, asphalt paving, concrete construction, site development and grading services, and in some segments the manufacturing of prestressed concrete products). We are strategically focused on being the provider of choice in mid-size, high-growth markets and are committed to our plan for continued growth and to delivering for our stakeholders — customers, communities, employees and stockholders — by executing on our four core values: People, Safety, Quality and the Environment.

We supply construction materials to customers from 14 states and also provide related contracting services, which are primarily to public-sector customers for the development and servicing of highways, local roads, bridges and other public-infrastructure projects. We have broad access to high-quality aggregates in most of our markets, which forms the foundation of our vertically integrated business model. We share resources, including plants, equipment and people, across our various locations to maximize efficiency. We also transport our products by truck, rail and barge, depending on the particular market, to complete the vertical value chain. Our strategically located aggregate sites, ready-mix plants and asphalt plants, along with our fleet of ready-mix and dump trucks, enable us to better serve our customers. We believe our integrated and expansive business model is a strong competitive advantage that provides scale, efficiency and operational excellence for the benefit of customers, stockholders and the broader communities that we serve.

In January 2025, we made a change to our organizational structure to better align with our business strategy. We reorganized our business segments to reflect changes in the way our chief operating decision maker evaluates performance, makes operating decisions and allocates resources. Our former Pacific and Northwest operating segments were combined to form the new West operating segment. Our former North Central and South operating segments were combined to form the new Central operating segment. The reorganization resulted in four operating segments: West, Mountain, Central and Energy Services, each of which is also a reportable segment. All periods have been recast to conform to the current reportable segment presentation.

Three of the reportable segments are aligned by key geographic areas, West, Mountain and Central, due to the production of construction materials and related contracting services and one is based on product line. Each geographic segment offers a vertically integrated suite of products and services, including aggregates, ready-mix concrete, asphalt and contracting services, while the Energy Services segment, which has locations throughout our geographic footprint, produces and supplies liquid asphalt and related services, primarily for use in asphalt road construction. We also provide the details of Corporate Services, which includes accounting, legal, treasury, information technology, human resources, corporate development costs and certain corporate expenses that support our operating segments. For more information on our business segments, see Note 15 of the Notes to Consolidated Financial Statements.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**<u>Part I -- Financial Information</u>**

**Item 1. Financial Statements**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** |
| **Consolidated Statements of Operations** | **Consolidated Statements of Operations** | **Consolidated Statements of Operations** | **Consolidated Statements of Operations** | **Consolidated Statements of Operations** |
| **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** |
|  | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended |
|  | June 30, | June 30, | June 30, | June 30, |
|  | 2025 | 2024 | 2025 | 2024 |
|  | (In thousands, except per share amounts) | (In thousands, except per share amounts) | (In thousands, except per share amounts) | (In thousands, except per share amounts) |
| Revenue: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Construction materials | $493575 | $435132 | $706983 | $639227 |
| &nbsp;&nbsp;&nbsp;Contracting services | 340184 | 371774 | 480248 | 497269 |
| &nbsp;&nbsp;Total revenue | 833759 | 806906 | 1187231 | 1136496 |
| Cost of revenue: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Construction materials | 377104 | 310322 | 610867 | 520152 |
| &nbsp;&nbsp;&nbsp;Contracting services | 299409 | 320364 | 428712 | 433631 |
| &nbsp;&nbsp;Total cost of revenue | 676513 | 630686 | 1039579 | 953783 |
| Gross profit | 157246 | 176220 | 147652 | 182713 |
| Selling, general and administrative expenses | 69170 | 59474 | 142228 | 119695 |
| Operating income | 88076 | 116746 | 5424 | 63018 |
| Interest expense | 22335 | 13936 | 37598 | 27912 |
| Other income | 2207 | 1304 | 6773 | 5054 |
| Income (loss) before income taxes | 67948 | 104114 | (25401) | 40160 |
| Income tax expense (benefit) | 17345 | 26185 | (7294) | 9859 |
| Net income (loss) | $50603 | $77929 | $(18107) | $30301 |
| Net income (loss) per share |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Basic | $.89 | $1.38 | $(.32) | $.54 |
| &nbsp;&nbsp;&nbsp;Diluted | $.89 | $1.37 | $(.32) | $.53 |
| Weighted average common shares outstanding: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Basic | 56657 | 56611 | 56642 | 56601 |
| &nbsp;&nbsp;&nbsp;Diluted | 56912 | 56811 | 56642 | 56791 |

---

The accompanying notes are an integral part of these consolidated financial statements.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** |
| **Consolidated Statements of Comprehensive Income** | **Consolidated Statements of Comprehensive Income** | **Consolidated Statements of Comprehensive Income** | **Consolidated Statements of Comprehensive Income** | **Consolidated Statements of Comprehensive Income** |
| **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** |
|  | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended |
|  | June 30, | June 30, | June 30, | June 30, |
|  | 2025 | 2024 | 2025 | 2024 |
|  | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Net income (loss) | $50603 | $77929 | $(18107) | $30301 |
| Other comprehensive income: |  |  |  |  |
| Postretirement liability adjustment: |  |  |  |  |
| &nbsp;&nbsp;Amortization of postretirement liability losses included in net periodic benefit cost, net of tax of $20 and $25 for the three months ended and $40 and $50 for the six months ended June 30, 2025 and 2024, respectively. | 64 | 77 | 127 | 155 |
| Postretirement liability adjustment | 64 | 77 | 127 | 155 |
| Other comprehensive income | 64 | 77 | 127 | 155 |
| Comprehensive income (loss) attributable to common stockholders | $50667 | $78006 | $(17980) | $30456 |

---

The accompanying notes are an integral part of these consolidated financial statements.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

---

| | | | |
|:---|:---|:---|:---|
| **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** |
| **Consolidated Balance Sheets** | **Consolidated Balance Sheets** | **Consolidated Balance Sheets** | **Consolidated Balance Sheets** |
| **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** |
|  | June 30, 2025 | June 30, 2024 | December 31, 2024 |
|  | (In thousands, except shares and per share amounts) | (In thousands, except shares and per share amounts) | (In thousands, except shares and per share amounts) |
| Assets |  |  |  |
| Current assets: |  |  |  |
| &nbsp;&nbsp;&nbsp;Cash, cash equivalents and restricted cash | $77668 | $57169 | $281134 |
| &nbsp;&nbsp;&nbsp;Receivables, net | 428098 | 422941 | 267240 |
| &nbsp;&nbsp;&nbsp;Costs and estimated earnings in excess of billings on uncompleted contracts | 63964 | 49150 | 31283 |
| &nbsp;&nbsp;&nbsp;Inventories | 479521 | 385378 | 380336 |
| &nbsp;&nbsp;&nbsp;Prepayments and other current assets | 54029 | 35049 | 27675 |
| Total current assets | 1103280 | 949687 | 987668 |
| Noncurrent assets: |  |  |  |
| &nbsp;&nbsp;&nbsp;Net property, plant and equipment | 1924220 | 1355381 | 1441700 |
| &nbsp;&nbsp;&nbsp;Goodwill | 464133 | 275213 | 297225 |
| &nbsp;&nbsp;&nbsp;Other intangible assets, net | 38147 | 10144 | 29414 |
| &nbsp;&nbsp;&nbsp;Operating lease right-of-use assets | 49114 | 47818 | 49378 |
| &nbsp;&nbsp;&nbsp;Investments and other | 52569 | 44619 | 45817 |
| Total noncurrent assets | 2528183 | 1733175 | 1863534 |
| Total assets | $3631463 | $2682862 | $2851202 |
| Liabilities and Stockholders' Equity |  |  |  |
| Current liabilities: |  |  |  |
| &nbsp;&nbsp;&nbsp;Long-term debt - current portion | $11780 | $7072 | $10475 |
| &nbsp;&nbsp;&nbsp;Accounts payable | 172204 | 164188 | 140834 |
| &nbsp;&nbsp;&nbsp;Billings in excess of costs and estimated earnings on uncompleted contracts | 36306 | 45123 | 42126 |
| &nbsp;&nbsp;&nbsp;Accrued compensation | 31398 | 29208 | 50655 |
| &nbsp;&nbsp;Other taxes payable | 17960 | 15602 | 8286 |
| &nbsp;&nbsp;&nbsp;Current operating lease liabilities | 14306 | 13615 | 14844 |
| &nbsp;&nbsp;Accrued interest | 7697 | 7167 | 5535 |
| &nbsp;&nbsp;&nbsp;Other accrued liabilities | 105555 | 96334 | 97282 |
| Total current liabilities | 397206 | 378309 | 370037 |
| Noncurrent liabilities: |  |  |  |
| &nbsp;&nbsp;&nbsp;Long-term debt | 1341174 | 672466 | 666911 |
| &nbsp;&nbsp;&nbsp;Deferred income taxes | 257472 | 179197 | 174727 |
| &nbsp;&nbsp;&nbsp;Noncurrent operating lease liabilities | 34807 | 34203 | 34534 |
| &nbsp;&nbsp;&nbsp;Other | 139687 | 119981 | 128908 |
| Total liabilities | 2170346 | 1384156 | 1375117 |
| Commitments and contingencies |  |  |  |
| Stockholders' equity: |  |  |  |
| &nbsp;&nbsp;Common stock, 300,000,000 shares authorized, $0.01 par value, 57,095,301 shares issued and 56,664,165 shares outstanding at June 30, 2025; 57,043,841 shares issued and 56,612,705 shares outstanding at June 30, 2024; 57,043,841 shares issued and 56,612,705 shares outstanding at December 31, 2024 | 571 | 570 | 570 |
| &nbsp;&nbsp;&nbsp;Other paid-in capital | 623908 | 616757 | 620897 |
| &nbsp;&nbsp;&nbsp;Retained earnings | 849439 | 696169 | 867546 |
| &nbsp;&nbsp;Treasury stock held at cost - 431,136 shares | (3626) | (3626) | (3626) |
| &nbsp;&nbsp;&nbsp;Accumulated other comprehensive loss | (9175) | (11164) | (9302) |
| Total stockholders' equity | 1461117 | 1298706 | 1476085 |
| Total liabilities and stockholders' equity | $3631463 | $2682862 | $2851202 |

---

The accompanying notes are an integral part of these consolidated financial statements.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** |
| **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** |
| **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** |
|  | Common Stock | Common Stock | Other<br>Paid-in Capital | Retained Earnings | Treasury Stock | Treasury Stock | Accumulated Other Comprehensive Loss |  |
|  | Shares | Amount | Other<br>Paid-in Capital | Retained Earnings | Shares | Amount | Accumulated Other Comprehensive Loss | Total |
|  | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) |
| At December 31, 2024 | 57043841 | $570 | $620897 | $867546 | (431136) | $(3626) | $(9302) | $1476085 |
| &nbsp;&nbsp;&nbsp;Net loss |  |  |  | (68710) |  |  |  | (68710) |
| &nbsp;&nbsp;&nbsp;Other comprehensive income |  |  |  |  |  |  | 63 | 63 |
| &nbsp;&nbsp;Stock-based compensation expense |  |  | 2799 |  |  |  |  | 2799 |
| &nbsp;&nbsp;Common stock issued for employee compensation, net of tax withholding | 39656 | 1 | (2654) |  |  |  |  | (2653) |
| At March 31, 2025 | 57083497 | $571 | $621042 | $798836 | (431136) | $(3626) | $(9239) | $1407584 |
| &nbsp;&nbsp;Net income  |  |  |  | 50603 |  |  |  | 50603 |
| &nbsp;&nbsp;Other comprehensive income |  |  |  |  |  |  | 64 | 64 |
| &nbsp;&nbsp;Stock-based compensation expense |  |  | 2866 |  |  |  |  | 2866 |
| &nbsp;&nbsp;Common stock issued for board of director fees | 11804 |  |  |  |  |  |  |  |
| At June 30, 2025 | 57095301 | $571 | $623908 | $849439 | (431136) | $(3626) | $(9175) | $1461117 |

---

The accompanying notes are an integral part of these consolidated financial statements.

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** |
| **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** | **Consolidated Statements of Equity** |
| **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** | **(Unaudited)** |
|  | Common Stock | Common Stock | Other<br>Paid-in Capital | Retained Earnings | Treasury Stock | Treasury Stock | Accumulated Other Comprehensive Loss |  |
|  | Shares | Amount | Other<br>Paid-in Capital | Retained Earnings | Shares | Amount | Accumulated Other Comprehensive Loss | Total |
|  | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) | (In thousands, except shares) |
| At December 31, 2023 | 57009542 | $570 | $614513 | $665874 | (431136) | $(3626) | $(11319) | $1266012 |
| &nbsp;&nbsp;&nbsp;Net loss |  |  |  | (47629) |  |  |  | (47629) |
| &nbsp;&nbsp;&nbsp;Other comprehensive income |  |  |  |  |  |  | 78 | 78 |
| &nbsp;&nbsp;Stock-based compensation expense |  |  | 1811 |  |  |  |  | 1811 |
| &nbsp;&nbsp;&nbsp;Common stock issued for employee compensation, net of tax withholding | 31298 |  | (1645) |  |  |  |  | (1645) |
| At March 31, 2024 | 57040840 | $570 | $614679 | $618245 | (431136) | $(3626) | $(11241) | $1218627 |
| &nbsp;&nbsp;Net income  |  |  |  | 77929 |  |  |  | 77929 |
| &nbsp;&nbsp;Other comprehensive income |  |  |  |  |  |  | 77 | 77 |
| &nbsp;&nbsp;Stock-based compensation expense |  |  | 2106 | (5) |  |  |  | 2101 |
| &nbsp;&nbsp;Common stock issued for board of director fees | 3001 |  | (28) |  |  |  |  | (28) |
| At June 30, 2024 | 57043841 | $570 | $616757 | $696169 | (431136) | $(3626) | $(11164) | $1298706 |

---

The accompanying notes are an integral part of these consolidated financial statements.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

---

| | | |
|:---|:---|:---|
| **Knife River Corporation** | **Knife River Corporation** | **Knife River Corporation** |
| **Consolidated Statements of Cash Flows** | **Consolidated Statements of Cash Flows** | **Consolidated Statements of Cash Flows** |
| **(Unaudited)** | **(Unaudited)** | **(Unaudited)** |
|  | Six Months Ended | Six Months Ended |
|  | June 30, | June 30, |
|  | 2025 | 2024 |
|  | (In thousands) | (In thousands) |
| Operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;Net income (loss) | $(18107) | $30301 |
| &nbsp;&nbsp;Adjustments to reconcile net income (loss) to net cash used by operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Depreciation, depletion and amortization | 88967 | 66724 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | (133) | 4739 |
| &nbsp;&nbsp;&nbsp;&nbsp;Provision for credit losses | 441 | 277 |
| &nbsp;&nbsp;&nbsp;&nbsp;Amortization of debt issuance costs | 1766 | 1381 |
| &nbsp;&nbsp;&nbsp;&nbsp;Employee stock-based compensation costs | 5665 | 3686 |
| &nbsp;&nbsp;&nbsp;&nbsp;Pension and postretirement benefit plan net periodic benefit cost | 714 | 605 |
| &nbsp;&nbsp;&nbsp;&nbsp;Unrealized gains on investments | (1050) | (1604) |
| &nbsp;&nbsp;&nbsp;&nbsp;Gains on sales of assets | (12737) | (5626) |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain on bargain purchase | (3547) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Equity in losses of unconsolidated affiliates | (203) | (361) |
| &nbsp;&nbsp;&nbsp;&nbsp;Changes in current assets and liabilities, net of acquisitions: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Receivables | (177419) | (178102) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories | (59895) | (65434) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other current assets | (18149) | 2473 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable | 36198 | 57853 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other current liabilities | (15550) | (12831) |
| &nbsp;&nbsp;&nbsp;&nbsp;Pension and postretirement benefit plan contributions | (287) | (283) |
| &nbsp;&nbsp;&nbsp;&nbsp;Other noncurrent changes | 5479 | 6425 |
| Net cash used in operating activities | (167847) | (89777) |
| Investing activities: |  |  |
| &nbsp;&nbsp;&nbsp;Capital expenditures | (228595) | (103623) |
| &nbsp;&nbsp;&nbsp;Acquisitions, net of cash acquired | (501917) | (10208) |
| &nbsp;&nbsp;&nbsp;Net proceeds from sale or disposition of property and other | 31440 | 6765 |
| &nbsp;&nbsp;&nbsp;Investments | (2873) | (3132) |
| Net cash used in investing activities | (701945) | (110198) |
| Financing activities: |  |  |
| &nbsp;&nbsp;&nbsp;Issuance of long-term debt | 683000 |  |
| &nbsp;&nbsp;&nbsp;Repayment of long-term debt | (2951) | (3503) |
| &nbsp;&nbsp;&nbsp;Debt issuance costs | (11070) |  |
| &nbsp;&nbsp;Tax withholding on stock-based compensation | (2653) | (1673) |
| Net cash provided by (used in) financing activities | 666326 | (5176) |
| Decrease in cash, cash equivalents and restricted cash | (203466) | (205151) |
| Cash, cash equivalents and restricted cash -- beginning of year | 281134 | 262320 |
| Cash, cash equivalents and restricted cash -- end of period | $77668 | $57169 |

---

The accompanying notes are an integral part of these consolidated financial statements.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Knife River Corporation**

**Notes to Consolidated**

**Financial Statements**

**June 30, 2025 and 2024** 

**(Unaudited)**

**<u>Note 1 - Background</u>**

At Knife River, we are a people-first construction materials and contracting services company. We provide construction materials and contracting services to build safe roads, bridges, airport runways and other critical infrastructure needs that connect people with where they want to go and with the supplies they need. We are one of the leading providers of crushed stone and sand and gravel in the United States and operate across 14 states. We conduct our operations through four reportable segments: West, Mountain, Central and Energy Services.

In January 2025, we made a change to our organizational structure to better align with our business strategy. We reorganized our business segments to reflect changes in the way our chief operating decision maker evaluates performance, makes operating decisions and allocates resources. Our former Pacific and Northwest operating segments were combined to form the new West operating segment. Our former North Central and South operating segments were combined to form the new Central operating segment. The reorganization resulted in four operating segments: West, Mountain, Central and Energy Services, each of which is also a reportable segment. Each segment's performance is evaluated based on segment results without allocating corporate expenses, which include corporate costs associated with accounting, legal, treasury, business development, information technology, human resources, and other corporate expenses that support the operating segments. Prior periods have been recast to conform to the current reportable segment presentation.

**<u>Note 2 - Basis of presentation</u>**

The accompanying consolidated interim financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Interim financial statements do not include all disclosures provided in annual financial statements and, accordingly, these financial statements should be read in conjunction with the Company's 2024 Annual Report on Form 10-K (Annual Report). The information is unaudited but includes adjustments that are, in the opinion of management, necessary for a fair presentation of the accompanying consolidated interim financial statements and are of a normal recurring nature.

All revenues and costs, as well as assets and liabilities, directly associated with our business activities are included in the consolidated financial statements. General corporate expenses are included in the Consolidated Statements of Operations within selling, general and administrative expenses and other income.

On March 7, 2025, we acquired Strata Corporation (Strata), a leading construction materials and contracting services provider in North Dakota and northwestern Minnesota. The purchase price for Strata totaled $454.0 million and is subject to post-closing adjustments. The results of operations and balance sheet accounts for Strata are included in the consolidated financial statements from the date of acquisition. For more information, see Note 10.

Management has also evaluated the impact of events occurring after June 30, 2025, up to the date of issuance of these consolidated interim financial statements on August 5, 2025, that would require recognition or disclosure in the Consolidated Financial Statements.

**Principles of consolidation**

For all periods, the consolidated financial statements were prepared in accordance with GAAP and include the accounts of Knife River and its wholly owned subsidiaries. All intercompany accounts and transactions between the businesses comprising Knife River have been eliminated in the accompanying audited consolidated financial statements.

**Use of estimates**

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the consolidated financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Estimates are used for items such as long-lived assets and goodwill; fair values of acquired assets and liabilities under the acquisition method of accounting; aggregate reserves; property depreciable lives; tax provisions; revenue recognized using the cost-to-cost measure of progress for contracts; expected credit losses; environmental and other loss contingencies; costs on contracting services contracts; actuarially determined benefit costs; asset retirement obligations; present value of right-of-use assets and lease liabilities; and the valuation of stock-based compensation. These estimates are based on management's best knowledge of current events, historical experience, actions that we may undertake in the future and on various other assumptions that are believed to be reasonable under the circumstances. As additional information becomes available, or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Cash, cash equivalents and restricted cash**

We consider all highly liquid investments with an original maturity of three months or less, when purchased, to be cash and cash equivalents. Restricted cash represents deposits held by our captive insurance company that is required by state insurance regulations to remain in the captive insurance company. Cash, cash equivalents and restricted cash on the Consolidated Balance Sheets is comprised of:

---

| | | | |
|:---|:---|:---|:---|
| | June 30, 2025 | June 30, 2024 | December 31, 2024 |
| | (In thousands) | (In thousands) | (In thousands) |
| Cash and cash equivalents | $26614 | $15468 | $236799 |
| Restricted cash | 51054 | 41701 | 44335 |
| Cash, cash equivalents and restricted cash | $77668 | $57169 | $281134 |

---

**Seasonality of operations**

Some of our operations are seasonal and revenues from, and certain expenses for, such operations may fluctuate significantly among quarterly periods, with lower activity in the winter months and higher activity in the summer months. Accordingly, the interim results for particular segments, and for Knife River as a whole, may not be indicative of results for the full fiscal year or other future periods.

**<u>Note 3 - New accounting standards</u>**

The following table provides a brief description of the accounting pronouncements applicable to us and the potential impact on our consolidated financial statements and/or disclosures:

---

| | | | |
|:---|:---|:---|:---|
| **Standard** | **Description** | **Standard Effective Date** | **Impact on financial statements/disclosures** |
| *Recently adopted Financial Accounting Standards Board (FASB) accounting standards updates (ASU)* | *Recently adopted Financial Accounting Standards Board (FASB) accounting standards updates (ASU)* | *Recently adopted Financial Accounting Standards Board (FASB) accounting standards updates (ASU)* | *Recently adopted Financial Accounting Standards Board (FASB) accounting standards updates (ASU)* |
| ASU 2023-07 - Improvements to Reportable Segment Disclosures | In November 2023, the FASB issued guidance on modifying the disclosure requirements to improve reportable segment disclosure requirements through enhanced disclosures about significant segment expenses. The guidance also expands the interim disclosure requirements. The guidance is to be applied on a retrospective basis to the financial statements and footnotes and early adoption is permitted. | Adopted for the year ended December 31, 2024. | We updated our disclosures for the year ended December 31, 2024 and interim periods for 2025 to incorporate the required changes.  |
| ASU 2023-09 - Improvements to Income Tax Disclosures | In December 2023, the FASB issued guidance on modifying the disclosure requirements to increase transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. The guidance is to be applied on a prospective basis to the financial statements and footnotes, however, retrospective adoption is also permitted. The guidance also permits early adoption. | Adopted for the year ended December 31, 2024. | We updated our disclosures, which were not material, for the year ended December 31, 2024. |
| *Recently issued ASU's not yet adopted* | *Recently issued ASU's not yet adopted* | *Recently issued ASU's not yet adopted* | *Recently issued ASU's not yet adopted* |
| ASU 2024-03 - Disaggregation of Income Statement Expenses | In November 2024, the FASB issued guidance on modifying the disclosure requirements to improve the disclosures for a public entity's expenses and address requests from investors for more detailed information about the types of expenses in commonly presented expense captions. The guidance is to be applied either on a prospective basis to the financial statements issued for reporting periods after the effective date or on a retrospective basis to the financial statements to all prior periods presented in the financial statements. Early adoption is permitted.  | Annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027. | We are currently evaluating the impact the guidance will have on our disclosures for the year ended December 31, 2027 and interim periods for fiscal year 2028. |

---

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**<u>Note 4 - Receivables and allowance for expected credit losses</u>**

Receivables consist primarily of trade and contract receivables for the sale of goods and services net of expected credit losses. A majority of our receivables are due in 30 days or less. The total balance of receivables past due 90 days or more was $17.2 million, $7.4 million and $14.3 million at June 30, 2025, June 30, 2024 and December 31, 2024, respectively. Receivables were as follows:

---

| | | | |
|:---|:---|:---|:---|
| | June 30, 2025 | June 30, 2024 | December 31, 2024 |
| | (In thousands) | (In thousands) | (In thousands) |
| Trade receivables | $242259 | $206673 | $134480 |
| Contract receivables | 154168 | 188120 | 104547 |
| Retention receivables | 36266 | 32649 | 32558 |
| Receivables, gross | 432693 | 427442 | 271585 |
| Less expected credit loss | 4595 | 4501 | 4345 |
| Receivables, net | $428098 | $422941 | $267240 |

---

Our expected credit losses are determined through a review using historical credit loss experience; changes in asset specific characteristics; current conditions; and reasonable and supportable future forecasts, among other specific account data, and is performed at least quarterly. We develop and document our methodology to determine our allowance for expected credit losses. Risk characteristics used by management may include customer mix, knowledge of customers and general economic conditions of the various local economies, among others. Specific account balances are written off when management determines the amounts to be uncollectible. Management has reviewed the balance reserved through the allowance for expected credit losses and believes it is reasonable.

Details of our expected credit losses were as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | West | Mountain | Central | Energy Services | Total |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| As of December 31, 2024 | $2478 | $780 | $921 | $166 | $4345 |
| Current expected credit loss provision |  | 42 | 30 | 263 | 335 |
| Less write-offs charged against the allowance | 73 | 8 | 18 | 263 | 362 |
| At March 31, 2025 | $2405 | $814 | $933 | $166 | $4318 |
| Current expected credit loss provision | 81 | 86 | 147 | (208) | 106 |
| Less write-offs charged against the allowance | 32 | 10 | (5) | (208) | (171) |
| At June 30, 2025 | $2454 | $890 | $1085 | $166 | $4595 |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | West | Mountain | Central | Energy Services | Total |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| As of December 31, 2023 | $3057 | $2293 | $718 | $100 | $6168 |
| Current expected credit loss provision | (46) | (47) | 87 |  | (6) |
| Less write-offs charged against the allowance | 80 | 2 | 3 |  | 85 |
| At March 31, 2024 | $2931 | $2244 | $802 | $100 | $6077 |
| Current expected credit loss provision | 104 | 27 | 151 | 1 | 283 |
| Less write-offs charged against the allowance | 524 | 1122 | 212 | 1 | 1859 |
| At June 30, 2024 | $2511 | $1149 | $741 | $100 | $4501 |

---

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**<u>Note 5 - Inventories</u>**

Inventories on the Consolidated Balance Sheets were as follows:

---

| | | | |
|:---|:---|:---|:---|
| | June 30, 2025 | June 30, 2024 | December 31, 2024 |
| | (In thousands) | (In thousands) | (In thousands) |
| Finished products | $314565 | $245983 | $252563 |
| Raw materials | 120210 | 100029 | 91334 |
| Supplies and parts | 44746 | 39366 | 36439 |
| Total | $479521 | $385378 | $380336 |

---

Inventories are valued at the lower of cost or net realizable value using the average cost method. Inventories include production costs incurred as part of our aggregate mining activities. These inventoriable production costs include all mining and processing costs associated with the production of aggregates. Stripping costs incurred during the production phase, which represent costs of removing overburden and waste materials to access mineral deposits, are a component of inventoriable production costs.

**<u>Note 6 - Net income (loss) per share</u>**

Basic net income (loss) per share is computed by dividing net income (loss) by the weighted average number of shares of common stock outstanding during the applicable period. Diluted earnings per share is computed by dividing net income by the total of the weighted average number of shares of common stock outstanding during the applicable period, plus the effect of non-vested performance shares and restricted stock units. Our potentially dilutive securities have been excluded from the computation of diluted net loss per share as the effect would reduce the net loss per share and is considered antidilutive. Weighted average common shares outstanding is comprised of issued shares of 57,095,301 less shares held in treasury of 431,136. Basic and diluted net loss per share are calculated as follows, based on a reconciliation of the weighted-average common shares outstanding on a basic and diluted basis:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | 2025 | 2024 |
| | (In thousands, except per share amounts) | (In thousands, except per share amounts) | (In thousands, except per share amounts) | (In thousands, except per share amounts) |
| Net income (loss) | $50603 | $77929 | $(18107) | $30301 |
| Weighted average common shares outstanding - basic | 56657 | 56611 | 56642 | 56601 |
| Effect of dilutive performance shares and restricted stock units | 255 | 200 |  | 190 |
| Weighted average common shares outstanding - diluted | 56912 | 56811 | 56642 | 56791 |
| Shares excluded from the calculation of diluted income (loss) per share |  | 16 | 263 | 21 |
| Net income (loss) per share - basic | $.89 | $1.38 | $(.32) | $.54 |
| Net income (loss) per share - diluted | $.89 | $1.37 | $(.32) | $.53 |

---

**<u>Note 7 - Accumulated other comprehensive loss</u>**

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss). The only component of other comprehensive income (loss) is the amortization of postretirement liability losses for our benefit plans. As of June 30, 2025 and 2024, and December 31, 2024, accumulated other comprehensive loss was $9.2 million, $11.2 million and $9.3 million, respectively.

For the three months ended June 30, 2025 and 2024, we amortized $64,000 and $77,000, respectively, of expense into other income, and $20,000 and $25,000, respectively, into income taxes. For the six months ended June 30, 2025 and 2024, we amortized $127,000 and $155,000, respectively, of expense into other income, and $40,000 and $50,000, respectively, into income taxes.

**<u>Note 8 - Revenue from contracts with customers</u>**

Revenue is recognized when a performance obligation is satisfied by transferring control over a product or service to a customer. Revenue includes revenue from the sales of construction materials and contracting services. Revenue is measured based on consideration specified in a contract with a customer and excludes any sales incentives and amounts collected on behalf of third parties. Knife River is considered an agent for certain taxes collected from customers. As such, we present revenues net of these taxes at the time of sale to be remitted to governmental authorities, including sales and use taxes. Revenue for construction materials is recognized at a point in time when delivery of the products has taken place. Contracting revenue is recognized over time using an input method based on the cost-to-cost measure of progress on a project.

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Disaggregation**

In the following tables, revenue is disaggregated by category for each segment and includes sales of materials to both third parties and internal customers. Due to consolidation requirements, the internal sales revenues must be eliminated against the construction materials product used in downstream materials and contracting services to arrive at the external operating revenues. We believe this level of disaggregation best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. For more information on the Company's reportable segments, see Note 15.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Three Months Ended June 30, 2025 | West | Mountain | Central | Energy Services | Corporate Services and Eliminations | Total |
|  | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Aggregates | $74830 | $29350 | $61776 | $— | $— | $165956 |
| Ready-mix concrete | 89951 | 35707 | 80323 |  |  | 205981 |
| Asphalt | 38545 | 28792 | 43495 |  |  | 110832 |
| Liquid asphalt |  |  |  | 85894 |  | 85894 |
| Other | 49278 | 2 | 12599 | 14219 | 3453 | 79551 |
| Contracting services public-sector | 88459 | 80926 | 101252 |  |  | 270637 |
| Contracting services private-sector | 32693 | 29761 | 7093 |  |  | 69547 |
| Internal sales | (56561) | (28417) | (51476) | (14967) | (3218) | (154639) |
| Revenues from contracts with customers | $317195 | $176121 | $255062 | $85146 | $235 | $833759 |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Three Months Ended June 30, 2024 | West | Mountain | Central | Energy Services | Corporate Services and Eliminations | Total |
|  | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Aggregates | $84320 | $31138 | $42943 | $— | $— | $158401 |
| Ready-mix concrete | 82327 | 34967 | 62225 |  |  | 179519 |
| Asphalt | 41151 | 32860 | 45268 |  |  | 119279 |
| Liquid asphalt |  |  |  | 65304 |  | 65304 |
| Other | 47931 | 7 | 10875 | 14386 | 4511 | 77710 |
| Contracting services public-sector | 92012 | 90023 | 102820 |  |  | 284855 |
| Contracting services private-sector | 39818 | 41552 | 5549 |  |  | 86919 |
| Internal sales | (55507) | (36778) | (55077) | (13447) | (4272) | (165081) |
| Revenues from contracts with customers | $332052 | $193769 | $214603 | $66243 | $239 | $806906 |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Six Months Ended June 30, 2025 | West | Mountain | Central | Energy Services | Corporate Services and Eliminations | Total |
| Aggregates | $131087 | $37393 | $78868 | $— | $— | $247348 |
| Ready-mix concrete | 159732 | 48793 | 105914 |  |  | 314439 |
| Asphalt | 47411 | 29290 | 50266 |  |  | 126967 |
| Liquid asphalt |  |  |  | 98122 |  | 98122 |
| Other | 83683 | 5 | 15016 | 17214 | 7123 | 123041 |
| Contracting services public-sector | 127231 | 117105 | 125528 |  |  | 369864 |
| Contracting services private-sector | 61528 | 41591 | 7265 |  |  | 110384 |
| Internal sales | (85459) | (32063) | (59953) | (18645) | (6814) | (202934) |
| Revenues from contracts with customers | $525213 | $242114 | $322904 | $96691 | $309 | $1187231 |

---

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| Six Months Ended June 30, 2024 | West | Mountain | Central | Energy Services | Corporate Services and Eliminations | Total |
| Aggregates | $143268 | $40592 | $58814 | $— | $— | $242674 |
| Ready-mix concrete | 145323 | 48803 | 85248 |  |  | 279374 |
| Asphalt | 51735 | 33690 | 50326 |  |  | 135751 |
| Liquid asphalt |  |  |  | 76340 |  | 76340 |
| Other | 76833 | 13 | 12773 | 17448 | 9654 | 116721 |
| Contracting services public-sector | 133531 | 115882 | 123853 |  |  | 373266 |
| Contracting services private-sector | 62924 | 55355 | 5724 |  |  | 124003 |
| Internal sales | (84023) | (40740) | (61173) | (16428) | (9269) | (211633) |
| Revenues from contracts with customers | $529591 | $253595 | $275565 | $77360 | $385 | $1136496 |

---

**<u>Note 9 - Uncompleted contracts</u>**

The timing of revenue recognition may differ from the timing of invoicing to customers. The timing of invoicing to customers does not necessarily correlate with the timing of revenues being recognized under the cost-to-cost method of accounting. Contracts from contracting services are billed as work progresses in accordance with agreed upon contractual terms. Generally, billing to the customer occurs contemporaneous to revenue recognition. A variance in timing of the billings may result in a contract asset or a contract liability. A contract asset occurs when revenues are recognized under the cost-to-cost measure of progress, which exceeds amounts billed on uncompleted contracts. Such amounts will be billed as standard contract terms allow, usually based on various measures of performance or achievement. A contract liability occurs when there are billings in excess of revenues recognized under the cost-to-cost measure of progress on uncompleted contracts. Contract liabilities decrease as revenue is recognized from the satisfaction of the related performance obligation.

The changes in contract assets and liabilities were as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | June 30, 2025 | December 31, 2024 | Change | Location on Consolidated Balance Sheets |
| | (In thousands) | (In thousands) | (In thousands) | |
| Contract assets | $63964 | $31283 | $32681 | Costs and estimated earnings in excess of billings on uncompleted contracts |
| Contract liabilities | (36306) | (42126) | 5820 | Billings in excess of costs and estimated earnings on uncompleted contracts |
| Net contract assets (liabilities) | $27658 | $(10843) | $38501 |  |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| | June 30, 2024 | December 31, 2023 | Change | Location on Consolidated Balance Sheets |
| | (In thousands) | (In thousands) | (In thousands) | |
| Contract assets | $49150 | $27293 | $21857 | Costs and estimated earnings in excess of billings on uncompleted contracts |
| Contract liabilities | (45123) | (51376) | 6253 | Billings in excess of costs and estimated earnings on uncompleted contracts |
| Net contract assets (liabilities) | $4027 | $(24083) | $28110 |  |

---

We recognized $9.7 million and $37.9 million in revenue for the three and six months ended June 30, 2025, which was previously included in contract liabilities at December 31, 2024. We recognized $14.4 million and $44.9 million in revenue for the three and six months ended June 30, 2024, which was previously included in contract liabilities at December 31, 2023.

We recognized a net increase in revenues of $11.8 million and $18.1 million for the three and six months ended June 30, 2025, respectively, from performance obligations satisfied in prior periods. We recognized a net increase in revenues of $15.1 million and $21.2 million for the three and six months ended June 30, 2024, respectively, from performance obligations satisfied in prior periods.

**Remaining performance obligations**

The remaining performance obligations, also referred to as backlog, include unrecognized revenues that we reasonably expect to be realized. These unrecognized revenues can include: projects that have a written award, a letter of intent, a notice to proceed, an agreed upon work order to perform work on mutually accepted terms and conditions, and change orders or claims to the extent management believes additional contract revenues will be earned and are deemed probable of collection. The majority of our contracts for contracting services have an original duration of less than one year.

At June 30, 2025, our remaining performance obligations were $1,253.4 million. We expect to recognize the following revenue amounts in future periods related to these remaining performance obligations: $998.5 million within the next 12 months or less; $178.6 million within the next 13 to 24 months; and $76.3 million in 25 months or more.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**<u>Note 10 - Acquisitions and Dispositions</u>**

**Acquisitions**

The following acquisitions were accounted for as business combinations in accordance with ASC 805 - *Business Combinations*. The results of the business combinations have been included in the Company's Consolidated Financial Statements beginning on the acquisition dates. Pro forma financial amounts reflecting the effects of the business combinations are not presented, as none of these business combinations, individually or in the aggregate, were material to our financial position or results of operations.

Acquisitions are also subject to customary adjustments based on, among other things, the amount of cash, debt and working capital in the business as of the closing date. The amounts included in the Consolidated Balance Sheets for these adjustments are considered provisional until final settlement has occurred.

***Strata Corporation***

On March 7, 2025, we completed the acquisition of Strata Corporation, a leading construction materials and contracting services provider in North Dakota and northwestern Minnesota. The purchase of Strata includes operations that expand our aggregates, ready-mix and asphalt operations, as well as our trucking fleet, locomotives and railcars, in our current geographic locations. The purchase price for Strata totaled $454.0 million and is subject to post-closing adjustments. The results of Strata are included in our Central segment.

The estimated fair value of the assets acquired and liabilities assumed are preliminary, as we continue to gather information to finalize the valuation of these assets and liabilities. The fair values are considered provisional until final fair values are determined, or the measurement period has passed. We expect to record adjustments as we accumulate the information needed to estimate the fair value of assets acquired and liabilities assumed, including working capital balances, estimated fair value of identifiable intangible assets, property, plant and equipment, total consideration and goodwill. We utilized market and cost approaches to estimate the fair value of the property, plant and equipment, excluding aggregate reserves. The fair value of aggregate reserves and intangible assets were determined using the income approach. All estimates, key assumptions, and forecasts were either provided by or reviewed by management. We engaged third-party valuation firms to assist in the analysis and valuation of the assets of Strata. While we chose to utilize third-party valuation firms, the fair value analysis and related valuations represent the conclusions of management and not the conclusions or statements of any third party.

The excess of the total purchase price over the fair value of assets acquired and liabilities assumed was allocated to goodwill. We believe that the goodwill relates to several factors, including potential synergies related to market opportunities for multiple product offerings and economies of scale expected from combining our operations with the business acquired.

The final fair value of the net assets acquired may result in adjustments to the assets and liabilities, including goodwill, and will be made as soon as practical, but no later than one year from the respective acquisition dates. However, any subsequent measurement period adjustments are not expected to have a material impact on our results of operations.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

The preliminary allocation of the purchase price for Strata is as follows, which has been updated as of June 30, 2025, to include measurement period adjustments for updated fair values of certain assets, working capital adjustments and reclassification of assets held for sale to property, plant and equipment.

---

| | | | |
|:---|:---|:---|:---|
| | As of March 7, 2025 | Measurement Period Adjustments | As of June 30, 2025 |
| | (In thousands) | (In thousands) | (In thousands) |
| Assets |  |  |  |
| Current assets: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents | $7906 | $749 | $8655 |
| &nbsp;&nbsp;&nbsp;&nbsp;Receivables | 8374 | 2224 | 10598 |
| &nbsp;&nbsp;&nbsp;&nbsp;Costs and estimated earnings in excess of billings on uncompleted contracts | 4390 | (378) | 4012 |
| &nbsp;&nbsp;&nbsp;&nbsp;Inventories | 36355 | (132) | 36223 |
| &nbsp;&nbsp;&nbsp;&nbsp;Assets held for sale | 21093 | (2383) | 18710 |
| &nbsp;&nbsp;&nbsp;&nbsp;Prepayments and other current assets | 4850 |  | 4850 |
| Total current assets | 82968 | 80 | 83048 |
| Noncurrent assets: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Property, plant and equipment | 266370 | 1639 | 268009 |
| &nbsp;&nbsp;&nbsp;&nbsp;Goodwill | 152329 | (5544) | 146785 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other intangible assets | 13600 | (700) | 12900 |
| &nbsp;&nbsp;&nbsp;&nbsp;Operating lease right-of-use assets | 53 |  | 53 |
| Total noncurrent assets | 432352 | (4605) | 427747 |
| Total assets acquired | $515320 | $(4525) | $510795 |
| Liabilities |  |  |  |
| Current liabilities: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts payable | $3312 | $537 | $3849 |
| &nbsp;&nbsp;&nbsp;&nbsp;Billings in excess of costs and estimated earnings on uncompleted contracts | 921 | (324) | 597 |
| &nbsp;&nbsp;&nbsp;&nbsp;Current operating lease liabilities | 29 |  | 29 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other accrued liabilities | 21378 | (4738) | 16640 |
| Total current liabilities | 25640 | (4525) | 21115 |
| Noncurrent liabilities: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | 45092 |  | 45092 |
| &nbsp;&nbsp;&nbsp;&nbsp;Noncurrent operating lease liabilities | 3293 |  | 3293 |
| Total noncurrent liabilities | 48385 |  | 48385 |
| Total liabilities assumed | 74025 | (4525) | 69500 |
| Total consideration (fair value) | $441295 | $— | $441295 |

---

Intangible assets for Strata, as of the date of acquisition, included $8.8 million for customer backlog with an amortization period of 9 months and $4.1 million for permits with an amortization period of 10 years upon commencement of operations.

Revenue attributable to Strata included in our Consolidated Statements of Operations for the three and six months ended June 30, 2025, was $46.9 million and $49.8 million, respectively, and net loss was $3.8 million and $7.0 million, respectively.

***Other*** 

During the first six months of 2025, we completed the acquisitions of an aggregate quarry operation in Washington and an aggregates and contracting services business in Central Minnesota. The acquisitions resulted in the recognition of $5.9 million of current assets; $55.2 million of assets in property, plant and equipment; $11.3 million of goodwill; $5.2 million of intangible assets, which included $1.1 million of non-compete agreements, $2.7 million of customer relationships and $1.4 million of customer backlog; $1.1 million of current liabilities; $1.3 million deferred income tax liability and $202,000 of noncurrent liabilities - other. The results of the aggregate quarry operation are included in our West segment and the results of the aggregates and contracting services business are included in our Central segment.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

In the first quarter of 2025, we reviewed the fair values of the assets and liabilities of the aggregate quarry operation in Washington and determined that the purchase would result in a gain being recognized at the time of the acquisition. We believe the bargain purchase gain was primarily the result of the sellers' desire to exit quickly due to cash flow constraints which were limiting their ability to operate the business efficiently. The gain on the purchase was $3.5 million, net of deferred taxes of $1.3 million, and was recorded in other income on the Consolidated Statement of Operations.

During 2024, we completed four acquisitions with an aggregated purchase price of $120.7 million, subject to future post-closing adjustments. The purchase accounting for Albina Asphalt was completed in the second quarter and no material adjustments were needed.

For the three and six months ended June 30, 2025, we incurred acquisition-related costs on completed and other potential acquisitions of $1.6 million and $6.9 million, respectively. These costs are included in our Corporate Services in selling, general and administrative expenses on the Consolidated Statement of Operations.

**Dispositions**

On March 7, 2025, we sold four ready-mix plant operations for total proceeds of $14.5 million. The ready-mix plant operations were acquired by us as part of the Strata acquisition and subsequently sold to a third-party. The ready-mix plants were included in assets held for sale on the opening balance sheet for Strata at the time of the acquisition.

**<u>Note 11 - Goodwill and other intangible assets</u>**

The changes in the carrying amount of goodwill were as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Balance at January 1, 2025 | Goodwill Acquired During the Year | Measurement Period Adjustments | Balance at June 30, 2025 |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| West | $123674 | $— | $— | $123674 |
| Mountain | 26816 |  |  | 26816 |
| Central | 115322 | 172491 | (5544) | 282269 |
| Energy Services | 31413 |  | (39) | 31374 |
| Total | $297225 | $172491 | $(5583) | $464133 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Balance at January 1, 2024 | Goodwill Acquired During the Year | Measurement Period Adjustments | Balance at June 30, 2024 |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| West | $123599 | $— | $— | $123599 |
| Mountain | 26816 |  |  | 26816 |
| Central | 114587 | 735 |  | 115322 |
| Energy Services | 9476 |  |  | 9476 |
| Total | $274478 | $735 | $— | $275213 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Balance at January 1, 2024 | Goodwill Acquired During the Year | Measurement Period Adjustments | Balance at December 31, 2024 |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| West | $123599 | $75 | $— | $123674 |
| Mountain | 26816 |  |  | 26816 |
| Central | 114587 | 735 |  | 115322 |
| Energy Services | 9476 | 21937 |  | 31413 |
| Total | $274478 | $22747 | $— | $297225 |

---

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

Other amortizable intangible assets were as follows:

---

| | | | |
|:---|:---|:---|:---|
| | June 30, 2025 | June 30, 2024 | December 31, 2024 |
| | (In thousands) | (In thousands) | (In thousands) |
| Customer relationships | $32503 | $18868 | $30703 |
| Less accumulated amortization | 13316 | 9977 | 11060 |
|  | 19187 | 8891 | 19643 |
| Noncompete agreements | 3107 | 3784 | 3950 |
| Less accumulated amortization | 2797 | 3283 | 3524 |
|  | 310 | 501 | 426 |
| Tradename | 7470 |  | 7470 |
| Less accumulated amortization | 498 |  | 124 |
|  | 6972 |  | 7346 |
| Backlog | 9290 |  | 390 |
| Less accumulated amortization | 3290 |  | 22 |
|  | 6000 |  | 368 |
| Other | 5968 | 1796 | 3310 |
| Less accumulated amortization | 290 | 1044 | 1679 |
|  | 5678 | 752 | 1631 |
| Total | $38147 | $10144 | $29414 |

---

The previous tables include goodwill and intangible assets associated with the business combinations completed in the first half of 2025. For more information related to these business combinations, see Note 10.

Amortization expense for amortizable intangible assets for the three and six months ended June 30, 2025, was $5.0 million and $6.1 million, respectively. Amortization expense for amortizable intangible assets for the three and six months ended June 30, 2024, was $526,000 and $1.1 million, respectively. Estimated amortization expense for identifiable intangible assets as of June 30, 2025, was:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | Remainder of 2025 | 2026 | 2027 | 2028 | 2029 | Thereafter |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Amortization expense | $9164 | $4357 | $4287 | $3961 | $3466 | $12912 |

---

**<u>Note 12 - Fair value measurements</u>**

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. The fair value guidance establishes a hierarchy for grouping assets and liabilities, based on the significance of inputs. The estimated fair values of the assets and liabilities measured on a recurring basis are determined using the market approach.

**Financial instruments measured at fair value on a recurring basis**

We measure our investments in certain fixed-income and equity securities at fair value with changes in fair value recognized in income. We anticipate using these investments, which consist of insurance contracts, to satisfy our obligations under our unfunded, nonqualified defined benefit and defined contribution plans for our executive officers and certain key management employees, and invest in these fixed-income and equity securities for the purpose of earning investment returns and capital appreciation. These investments, which totaled $32.2 million, $27.3 million and $28.4 million at June 30, 2025 and 2024, and December 31, 2024, respectively, are classified as investments on the Consolidated Balance Sheets. The net unrealized gains on these investments were $1.8 million and $392,000 for the three months ended and $1.1 million and $1.6 million for the six months ended June 30, 2025 and 2024, respectively. The change in fair value, which is considered part of the cost of the plan, is classified in other income on the Consolidated Statements of Operations.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

The Company's assets measured at fair value on a recurring basis were as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Fair Value Measurements at June 30, 2025, Using | Fair Value Measurements at June 30, 2025, Using | Fair Value Measurements at June 30, 2025, Using | |
| | Quoted Prices in<br>Active Markets<br>for Identical<br>Assets<br>(Level 1) | Significant<br>Other<br>Observable<br>Inputs<br>(Level 2) | Significant<br>Unobservable<br>Inputs<br>(Level 3) |<br>Balance at June 30, 2025 |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Assets: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Money market funds | $— | $2718 | $— | $2718 |
| &nbsp;&nbsp;Insurance contracts |  | 32241 |  | 32241 |
| Total assets measured at fair value | $— | $34959 | $— | $34959 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Fair Value Measurements at June 30, 2024, Using | Fair Value Measurements at June 30, 2024, Using | Fair Value Measurements at June 30, 2024, Using | |
| | Quoted Prices in<br>Active Markets<br>for Identical<br>Assets<br>(Level 1) | Significant<br>Other<br>Observable<br>Inputs<br>(Level 2) | Significant<br>Unobservable<br>Inputs<br>(Level 3) |<br>Balance at June 30, 2024 |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Assets: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Money market funds | $— | $3982 | $— | $3982 |
| &nbsp;&nbsp;Insurance contracts |  | 27289 |  | 27289 |
| Total assets measured at fair value | $— | $31271 | $— | $31271 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Fair Value Measurements at December 31, 2024, Using | Fair Value Measurements at December 31, 2024, Using | Fair Value Measurements at December 31, 2024, Using | |
| | Quoted Prices in<br>Active Markets<br>for Identical<br>Assets<br> (Level 1) | Significant<br>Other<br>Observable<br>Inputs<br>(Level 2) | Significant<br>Unobservable<br>Inputs<br> (Level 3) |<br>Balance at December 31, 2024 |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Assets: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Money market funds | $— | $4082 | $— | $4082 |
| &nbsp;&nbsp;Insurance contracts |  | 28377 |  | 28377 |
| Total assets measured at fair value | $— | $32459 | $— | $32459 |

---

Our Level 2 money market funds are valued at the net asset value of shares held at the end of the period, based on published market quotations on active markets, or using other known sources including pricing from outside sources. The estimated fair value of the Level 2 insurance contracts is based on contractual cash surrender values that are determined primarily by investments in managed separate accounts of the insurer. These amounts approximate fair value. The managed separate accounts are valued based on other observable inputs or corroborated market data.

Though we believe the methods used to estimate fair value are consistent with those used by other market participants, the use of other methods or assumptions could result in a different estimate of fair value.

**Nonfinancial instruments measured at fair value on a nonrecurring basis**

We apply the provisions of the fair value measurement standard to our nonrecurring, non-financial measurements, including long-lived asset impairments. These assets are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances. We review the carrying value of our long-lived assets, excluding goodwill, whenever events or changes in circumstances indicate that such carrying amounts may not be recoverable.

The assets and liabilities of the acquisitions that occurred through the second quarter of 2025 were calculated using a market or cost approach. The fair value of some of the assets was determined based on Level 3 inputs including estimated future cash flows, discount rates, growth rates and sales projections, all of which require significant management judgment. For more information on these Level 2 and 3 fair value measurements, see Note 10.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

Our long-term debt is not measured at fair value on the Consolidated Balance Sheets and the fair value is being provided for disclosure purposes only. The fair value was categorized as Level 2 in the fair value hierarchy and was based on discounted cash flows using current market interest rates. The estimated fair value of our Level 2 long-term debt was as follows:

---

| | | | |
|:---|:---|:---|:---|
| | June 30, 2025 | June 30, 2024 | December 31, 2024 |
| | (In thousands) | (In thousands) | (In thousands) |
| Carrying amount | $1369999 | $693483 | $689950 |
| Fair value | $1395807 | $712852 | $707853 |

---

The carrying amounts of our remaining financial instruments included in current assets and current liabilities approximate their fair values.

**<u>Note 13 - Debt</u>**

Certain debt instruments of ours contain restrictive covenants and cross-default provisions. In order to borrow under the debt agreements, we must be in compliance with the applicable covenants and certain other conditions, all of which management believes we, as applicable, were in compliance with at June 30, 2025. In the event we do not comply with the applicable covenants and other conditions, alternative sources of funding may need to be pursued.

On March 7, 2025, we entered into an amendment to the senior secured credit agreement to, among other things, increase our revolving credit facility from $350.0 million to $500.0 million and extend the maturity to March 7, 2030, refinance the existing $275.0 million Term Loan A to extend the maturity to March 7, 2030, and provide for a new Term Loan B in an aggregate principal amount of $500.0 million with a maturity of March 8, 2032. The Term Loan B was funded on March 7, 2025. Each facility has a SOFR-based interest rate. The Term Loan A has a mandatory annual amortization of 2.50 percent for years one and two, 5.00 percent for years three and four, and 7.50 percent in the fifth year. The Term Loan B has a mandatory annual amortization of $5.0 million. The agreement contains customary covenants and provisions, including a covenant of Knife River not to permit, at any time, the ratio of total debt to trailing-twelve-month earnings before interest, taxes, depreciation, depletion and amortization (EBITDA) to be greater than 4.75 to 1.00. The covenants also include restrictions on the sale of certain assets, loans and investments.

***Long-term Debt Outstanding*** Long-term debt outstanding was as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Weighted<br>Average<br>Interest<br>Rate at<br>June 30, 2025 | June 30, 2025 | June 30, 2024 | December 31, 2024 |
| | | (In thousands) | (In thousands) | (In thousands) |
| Term loan A agreement due on March 7, 2030  | 6.05% | $263033 | $268125 | $264688 |
| Term loan B agreement due on March 8, 2032 | 6.31% | 498750 |  |  |
| Revolving credit agreement | 6.58% | 183000 |  |  |
| Senior notes due on May 1, 2031 | 7.75% | 425000 | 425000 | 425000 |
| Other notes due on January 1, 2061 | —% | 216 | 358 | 262 |
| Less unamortized debt issuance costs |  | 17045 | 13945 | 12564 |
| Total long-term debt |  | 1352954 | 679538 | 677386 |
| Less current maturities |  | 11780 | 7072 | 10475 |
| Net long-term debt |  | $1341174 | $672466 | $666911 |

---

***Schedule of Debt Maturities*** Long-term debt maturities, which excludes unamortized debt issuance costs, at June 30, 2025, were as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | Remainder of<br>2025 | 2026 | 2027 | 2028 | 2029 | Thereafter |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Long-term debt maturities | $5971 | $11670 | $16580 | $18235 | $23197 | $1294346 |

---

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**<u>Note 14 - Cash flow information</u>**

Cash expenditures for interest and income taxes were as follows:

---

| | | |
|:---|:---|:---|
| | Six Months Ended | Six Months Ended |
| | June 30, | June 30, |
| | 2025 | 2024 |
| | (In thousands) | (In thousands) |
| Interest paid, net | $35179 | $27993 |
| Income taxes paid, net | $4091 | $1662 |

---

Noncash investing and financing transactions were as follows:

---

| | | |
|:---|:---|:---|
| | Six Months Ended | Six Months Ended |
| | June 30, | June 30, |
| | 2025 | 2024 |
| | &nbsp;&nbsp;&nbsp;&nbsp;(In thousands) | &nbsp;&nbsp;&nbsp;&nbsp;(In thousands) |
| Right-of-use assets obtained in exchange for new operating lease liabilities | $7671 | $10844 |
| Property, plant and equipment additions in accounts payable | $6127 | $5098 |

---

**<u>Note 15 - Business segment data</u>**

In January 2025, we made a change to our organizational structure to better align with our business strategy. We reorganized our business segments to reflect changes in the way our chief operating decision maker evaluates performance, makes operating decisions and allocates resources. Our former Pacific and Northwest operating segments were combined to form the new West operating segment. Our former North Central and South operating segments were combined to form the new Central operating segment. The reorganization resulted in four operating segments: West, Mountain, Central and Energy Services, each of which is also a reportable segment. Each segment's performance is evaluated based on segment results without allocating corporate expenses, which include corporate costs associated with accounting, legal, treasury, business development, information technology, human resources, and other corporate expenses that support the operating segments.

Three of our reportable segments are aligned by key geographic areas due to the production of construction materials and related contracting services and one is based on product line. Each segment is led by a segment manager who reports to the Company's chief operating officer, who is also the Company's chief operating decision maker, along with the chief executive officer. Our chief operating decision maker uses EBITDA to evaluate the performance of the segments, perform analytical comparisons to budget and uses historical and projected EBITDA to allocate resources, including capital allocations.

Each geographic segment offers a vertically integrated suite of products and services, including aggregates, ready-mix concrete, asphalt and contracting services, while the Energy Services segment produces and supplies liquid asphalt, primarily for use in asphalt road construction, and is a supplier to some of the other segments. Each geographic segment mines, processes and sells construction aggregates (crushed stone and sand and gravel); produces and sells asphalt; and produces and sells ready-mix concrete as well as vertically integrating its contracting services to support the aggregate-based product lines including heavy-civil construction, asphalt and concrete paving, and site development and grading. Although not common to all locations, the geographic segments also sell cement, merchandise and other building materials and related services.

Corporate Services represents the unallocated costs of certain corporate functions, such as accounting, legal, treasury, business development, information technology, human resources and other corporate expenses that support the operating segments. Corporate Services also includes an immaterial amount of external revenue from the Knife River Training Center. We account for intersegment sales and transfers as if the sales or transfers were to third parties. The accounting policies applicable to each segment are consistent with those used in the audited consolidated financial statements.

The proceeding information follows the same accounting policies as described in the audited financial statements and notes included in the Company's 2024 Annual Report. Prior periods presented have been recast to conform to the current reportable segment presentation.

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---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | Three Months Ended June 30, 2025 | Three Months Ended June 30, 2025 | Three Months Ended June 30, 2025 | Three Months Ended June 30, 2025 | Three Months Ended June 30, 2025 | Three Months Ended June 30, 2024 | Three Months Ended June 30, 2024 | Three Months Ended June 30, 2024 | Three Months Ended June 30, 2024 | Three Months Ended June 30, 2024 |
| | West | Mountain | Central | Energy Services | Total | West | Mountain | Central | Energy Services | Total |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Revenues from external customers | $317195 | $176121 | $255062 | $85146 | $833524 | $332052 | $193769 | $214603 | $66243 | $806667 |
| Intersegment revenues | 206 |  | 130 | 12234 | 12570 | 877 | 172 | 69 | 9910 | 11028 |
| Total segment revenue | 317401 | 176121 | 255192 | 97380 | 846094 | 332929 | 193941 | 214672 | 76153 | 817695 |
| Other revenues<sup>1</sup> |  |  |  |  | 337 |  |  |  |  | 377 |
| Less: Elimination of intersegment revenue |  |  |  |  | 12672 |  |  |  |  | 11166 |
| Total consolidated revenue |  |  |  |  | $833759 |  |  |  |  | $806906 |
| Cost of revenue excluding depreciation, depletion and amortization | 234634 | 136976 | 195820 | 77260 |  | 242591 | 143756 | 167558 | 54615 |  |
| Selling, general and administrative expenses excluding depreciation, depletion and amortization | 21821 | 8356 | 15316 | 3120 |  | 21341 | 7084 | 11285 | 2183 |  |
| Other segment items<sup>2</sup> | (176) | 121 | 341 | 79 |  | (446) | 18 | 359 | 12 |  |
| Total segment EBITDA | $60770 | $30910 | $44397 | $17079 | $153156 | $68551 | $43119 | $36188 | $19367 | $167225 |
| Consolidated income before income taxes |  |  |  |  | 67948 |  |  |  |  | 104114 |
| Plus: |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Depreciation, depletion and amortization |  |  |  |  | 50204 |  |  |  |  | 34512 |
| &nbsp;&nbsp;Interest expense, net<sup>3</sup> |  |  |  |  | 21546 |  |  |  |  | 12809 |
| Less unallocated amounts: |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Other corporate services revenue |  |  |  |  | 235 |  |  |  |  | 239 |
| &nbsp;&nbsp;Other corporate services expenses |  |  |  |  | (13693) |  |  |  |  | (16029) |
| Total segment EBITDA |  |  |  |  | $153156 |  |  |  |  | $167225 |

---

1&nbsp;&nbsp;&nbsp;&nbsp;Other revenues is comprised of revenue included within our corporate services.

2&nbsp;&nbsp;&nbsp;&nbsp;Other segment items is comprised of other income (expense) items on the income statement.

3&nbsp;&nbsp;&nbsp;&nbsp;Interest expense, net is interest expense net of interest income.

    

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---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2024 | Six Months Ended June 30, 2024 | Six Months Ended June 30, 2024 | Six Months Ended June 30, 2024 | Six Months Ended June 30, 2024 |
| | West | Mountain | Central | Energy Services | Total | West | Mountain | Central | Energy Services | Total |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Revenues from external customers | $525213 | $242114 | $322904 | $96691 | $1186922 | $529591 | $253595 | $275565 | $77360 | $1136111 |
| Intersegment revenues | 480 |  | 143 | 14632 | 15255 | 2010 | 172 | 96 | 11596 | 13874 |
| Total segment revenue | 525693 | 242114 | 323047 | 111323 | 1202177 | 531601 | 253767 | 275661 | 88956 | 1149985 |
| Other revenues<sup>1</sup> |  |  |  |  | 867 |  |  |  |  | 739 |
| Less: Elimination of intersegment revenue |  |  |  |  | 15813 |  |  |  |  | 14228 |
| Total consolidated revenue |  |  |  |  | $1187231 |  |  |  |  | $1136496 |
| Cost of revenue excluding depreciation, depletion and amortization | 399647 | 209930 | 269475 | 94877 |  | 401996 | 201080 | 233123 | 67525 |  |
| Selling, general and administrative expenses excluding depreciation, depletion and amortization | 43468 | 17655 | 33786 | 7217 |  | 41073 | 15693 | 25510 | 4603 |  |
| Other segment items<sup>2</sup> | 3106 | 114 | 319 | 49 |  | (570) | 60 | 438 | 56 |  |
| Total segment EBITDA | $85684 | $14643 | $20105 | $9278 | $129710 | $87962 | $37054 | $17466 | $16884 | $159366 |
| Consolidated income (loss) before income taxes |  |  |  |  | (25401) |  |  |  |  | 40160 |
| Plus: |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Depreciation, depletion and amortization |  |  |  |  | 88967 |  |  |  |  | 66724 |
| &nbsp;&nbsp;Interest expense, net<sup>3</sup> |  |  |  |  | 34669 |  |  |  |  | 23955 |
| Less unallocated amounts: |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Other corporate services revenue |  |  |  |  | 308 |  |  |  |  | 384 |
| &nbsp;&nbsp;Other corporate services expenses |  |  |  |  | (31783) |  |  |  |  | (28911) |
| Total segment EBITDA |  |  |  |  | $129710 |  |  |  |  | $159366 |

---

1&nbsp;&nbsp;&nbsp;&nbsp;Other revenues is comprised of revenue included within our corporate services.

2&nbsp;&nbsp;&nbsp;&nbsp;Other segment items is comprised of other income (expense) items on the income statement.

3&nbsp;&nbsp;&nbsp;&nbsp;Interest expense, net is interest expense net of interest income.

    

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---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | At June 30, 2025 | At June 30, 2025 | At June 30, 2025 | At June 30, 2025 | At June 30, 2025 | At June 30, 2024 | At June 30, 2024 | At June 30, 2024 | At June 30, 2024 | At June 30, 2024 |
| | West | Mountain | Central | Energy Services | Total | West | Mountain | Central | Energy Services | Total |
| | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) | (In thousands) |
| Capital expenditures | $132516 | $29420 | $46375 | $3450 | $211761 | $44282 | $25025 | $30218 | $6124 | $105649 |
| Assets | $1470836 | $402363 | $1317920 | $309690 | $3500809 | $1293685 | $374353 | $695878 | $191189 | $2555105 |
| Other assets |  |  |  |  | 5018536 |  |  |  |  | 4223726 |
| Elimination of intercompany receivables and investment in subsidiaries |  |  |  |  | 4887882 |  |  |  |  | 4095969 |
| Total consolidated assets |  |  |  |  | $3631463 |  |  |  |  | $2682862 |

---

**<u>Note 16 - Commitments and contingencies</u>**

We are party to claims and lawsuits arising out of our business and that of our consolidated subsidiaries, which may include, but are not limited to, matters involving property damage, personal injury, and environmental, contractual and statutory obligations. We accrue a liability for those contingencies when the incurrence of a loss is probable and the amount can be reasonably estimated. If a range of amounts can be reasonably estimated and no amount within the range is a better estimate than any other amount, then the minimum of the range is accrued. We do not accrue liabilities when the likelihood that the liability has been incurred is probable but the amount cannot be reasonably estimated or when the liability is believed to be only reasonably possible or remote. For contingencies where an unfavorable outcome is probable or reasonably possible and which are material, we disclose the nature of the contingency and, in some circumstances, an estimate of the possible loss. Accruals are based on the best information available, but in certain situations management is unable to estimate an amount or range of a reasonably possible loss including, but not limited to when: (1) the damages are unsubstantiated or indeterminate, (2) the proceedings are in the early stages, (3) numerous parties are involved, or (4) the matter involves novel or unsettled legal theories.

At June 30, 2025 and 2024, and December 31, 2024, we accrued contingent liabilities as a result of litigation, which have not been discounted, of $3.1 million, $3.2 million and $6.6 million, respectively. At June 30, 2025 and 2024, there were no corresponding insurance receivables recorded. At December 31, 2024, we recorded corresponding insurance receivables of $459,000 related to the accrued liabilities. Most of these claims and lawsuits are covered by insurance, thus our exposure is typically limited to our deductible amount. Management will continue to monitor each matter and adjust accruals as might be warranted based on new information and further developments. Management believes that the outcomes with respect to probable and reasonably possible losses in excess of the amounts accrued, net of insurance recoveries, while uncertain, either cannot be estimated or will not have a material effect upon the Company's financial position, results of operations or cash flows. Unless otherwise required by GAAP, legal costs are expensed as they are incurred.

**Environmental matters**

Knife River Corporation - Northwest is a party to claims for the cleanup of a superfund site in Portland, Oregon. There were no material changes to the environmental matters that were previously reported in the audited financial statements and notes included in our 2024 Annual Report.

**Guarantees**

We have outstanding obligations to third parties where we have guaranteed our performance. These guarantees are related to contracts for contracting services and certain other guarantees. At June 30, 2025, the fixed maximum amounts guaranteed under these agreements aggregated to $11.5 million, all of which have no scheduled maturity date. Certain of the guarantees also have no fixed maximum amounts specified. There were no amounts outstanding under the previously mentioned guarantees at June 30, 2025.

We have outstanding letters of credit to third parties related to insurance policies and other agreements. At June 30, 2025, the fixed maximum amounts guaranteed under these letters of credit aggregated to $23.4 million. At June 30, 2025, the amounts of scheduled expiration of the maximum amounts guaranteed under these letters of credit aggregate to $756,000 in 2025, $22.4 million in 2026, $104,000 in 2027 and $175,000 in 2028. There were no amounts outstanding under the previously mentioned letters of credit at June 30, 2025.

In the normal course of business, we have surety bonds related to contracts for contracting services, reclamation obligations and insurance policies of its subsidiaries. In the event a subsidiary of Knife River does not fulfill a bonded obligation, we would be responsible to the surety bond company for completion of the bonded contract or obligation. A large portion of the surety bonds are expected to expire within the next 12 months; however, we will likely continue to enter into surety bonds for our subsidiaries in the

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future. At June 30, 2025, approximately $915.7 million of surety bonds were outstanding, which were not reflected on the Consolidated Balance Sheet.

**<u>Note 17 - Related-party transactions</u>**

**Transition services agreements** 

On May 31, 2023, the separation of Knife River from MDU Resources Group, Inc. (MDU Resources) and its other businesses was completed and Knife River became an independent, publicly traded company (Separation) listed on the New York Stock Exchange under the symbol "KNF". As part of the Separation, MDU Resources provided transition services to us and we provided transition services to MDU Resources in accordance with the Transition Services Agreement entered into on May 30, 2023. We paid $413,000 for the three months ended and $1.2 million for the for the six months ended June 30, 2024, related to these activities, which were reflected in selling, general and administrative expenses on the Consolidated Statements of Operations. We received $62,000 for the three months ended and $138,000 for the for the six months ended June 30, 2024, related to these activities, which were reflected in other income on the Consolidated Statements of Operations. The majority of the transition services were completed over a period of one year after the Separation and, as of December 31, 2024, no further obligation for services exists for either party.

**<u>Note 18 - Subsequent event</u>**

On July 11, 2025, we acquired the business of High Desert Aggregate and Paving, LLC, an aggregates-led, construction materials and contracting services business with operations in Bend, Oregon, which will be included in the West segment. To date, the initial accounting for the acquisition is incomplete. Due to the limited time since the date of the acquisition, it is impracticable for us to make business combination disclosures related to the acquisition. We are still gathering the necessary information to provide such disclosures in future filings.

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

Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended ("Exchange Act"). Forward-looking statements are all statements other than statements of historical fact, including without limitation those statements that are identified by the words "anticipates," "estimates," "expects," "intends," "plans," "predicts" and similar expressions, and include statements concerning plans, projections, objectives, goals, strategies, future events or performance, and underlying assumptions (many of which are based, in turn, upon further assumptions) and other statements that are other than statements of historical facts. From time to time, Knife River Corporation ("Knife River," the "Company," "we," "our," or "us") may publish or otherwise make available forward-looking statements of this nature, including statements related to its Competitive EDGE strategy (EDGE) implemented to improve margins and to execute on other strategic initiatives aimed at generating long-term profitable growth, shareholder value creation, expected long-term goals, expected backlog margin, acquisitions, financing plans, expected federal and state funding for infrastructure or other proposed strategies.

Forward-looking statements involve risks and uncertainties, which could cause actual results or outcomes to differ materially from those expressed. Our expectations, beliefs and projections are expressed in good faith and are believed to have a reasonable basis, including without limitation, management's examination of historical operating trends, data contained in our records and other data available from third parties. Nonetheless, our expectations, beliefs or projections may not be achieved or accomplished and changes in such assumptions and factors could cause actual future results to differ materially.

Any forward-looking statement contained in this document speaks only as of the date on which the statement is made, and we undertake no obligation to update any forward-looking statement or statements to reflect events or circumstances that occur after the date on which the statement is made or to reflect the occurrence of unanticipated events, except as required by law. New factors emerge from time to time, and it is not possible for management to predict all the factors, nor can it assess the effect of each factor on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statement. All forward-looking statements, whether written or oral and whether made by or on behalf of our Company, are expressly qualified by the risk factors and cautionary statements reported in the section entitled "Item 1A. Risk Factors" in Part I of the Company's 2024 Annual Report on Form 10-K (Annual Report) and subsequent filings with the United States Securities and Exchange Commission (SEC).

Company Overview

At Knife River, we are a people-first construction materials and contracting services company. We provide construction materials and contracting services to build safe roads, bridges, airport runways and other critical infrastructure needs that connect people with where they want to go and with the supplies they need. We also champion a positive workplace culture by focusing on safety, training, inclusion, compensation and work-life balance.

We are one of the leading providers of crushed stone and sand and gravel in the United States and operate through four operating segments, which are also our reportable segments, across 14 states: West, Mountain, Central and Energy Services. The geographic segments primarily provide aggregates, asphalt and ready-mix concrete, as well as related contracting services such as heavy-civil construction, asphalt paving, concrete construction, site development and grading. The Energy Services segment produces and supplies liquid asphalt and related services, primarily for use in asphalt road construction.

As an aggregates-led construction materials and contracting services provider in the United States, our 1.2 billion tons of aggregate reserves, as of December 31, 2024, provide the foundation for a vertically integrated business strategy, with approximately 37 percent of our aggregates being used internally to support value-added downstream products (ready-mix concrete and asphalt) and contracting services (heavy-civil construction, laydown, asphalt paving, concrete construction, site development and grading services, bridges and in some segments the manufacturing of prestressed concrete products). Our aggregate sites and associated asphalt and ready-mix plants are primarily in strategic locations near mid-sized, high-growth markets, providing us with a transportation advantage for our materials that supports competitive pricing and increased margins. We provide our products and services to both public and private markets, with public markets being the majority of our work and tending to be more stable across economic cycles, which helps offset the cyclical nature of the private markets.

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We provide various products and services and operate a variety of facility types, including aggregate quarries and mines, ready-mix concrete plants, asphalt plants and distribution facilities, in the following states:

&nbsp;&nbsp;&nbsp;&nbsp;• West: Alaska, California, Hawaii, Oregon, and Washington

&nbsp;&nbsp;&nbsp;&nbsp;• Mountain: Idaho, Montana and Wyoming

&nbsp;&nbsp;&nbsp;&nbsp;• Central: Iowa, Minnesota, North Dakota, South Dakota and Texas

&nbsp;&nbsp;&nbsp;&nbsp;• Energy Services: California, Iowa, Nebraska, Oregon, South Dakota, Texas, Washington and Wyoming

The following table presents a summary of products and services provided, as well as modes of transporting those products:

---

| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Products and Services** | **Products and Services** | **Products and Services** | **Products and Services** | **Products and Services** | **Products and Services** | **Products and Services** | **Modes of Transportation** | **Modes of Transportation** | **Modes of Transportation** | **Modes of Transportation** |
| | | | | | Precast/ | | | | | | |
| | | | Ready-Mix | Construction | Prestressed | Liquid | | Heavy | | | |
| | Aggregates | Asphalt | Concrete | Services | Concrete | Asphalt | Cement | Equipment | Trucking | Rail | Barge |
| West | X | X | X | X | X | | X | X | X | X | X |
| Mountain | X | X | X | X | | | | X | X | | |
| Central | X | X | X | X | X | | | X | X | X | |
| Energy Services | | | | | | X | | | X | X | |

---

Basis of Presentation

In January 2025, we made a change to our organizational structure to better align with our business strategy. We reorganized our business segments to reflect changes in the way our chief operating decision maker evaluates performance, makes operating decisions and allocates resources. Our former Pacific and Northwest operating segments were combined to form the new West operating segment. Our former North Central and South operating segments were combined to form the new Central operating segment. The reorganization resulted in four operating segments: West, Mountain, Central and Energy Services, each of which is also a reportable segment. Each segment's performance is evaluated based on segment results without allocating corporate expenses, which include corporate costs associated with accounting, legal, treasury, business development, information technology, human resources, and other corporate expenses that support the operating segments. Prior periods have been recast to conform to the current reportable segment presentation.

Market Conditions and Outlook

Federal and state funding remains strong for a majority of our markets with approximately 80 percent of our historical contracting services revenue each year coming from public-sector projects, enhancing stability through market cycles. For more information on factors that may negatively impact our business, see the section entitled "Item 1A. Risk Factors" in Part I of the Company's 2024 Annual Report.

**Backlog.** Our contracting services backlog was as follows:

---

| | | | |
|:---|:---|:---|:---|
| | June 30, 2025 | June 30, 2024 | December 31, 2024 |
| | (In millions) | (In millions) | (In millions) |
| West | $282.4 | $320.8 | $230.2 |
| Mountain | 483.4 | 365.5 | 339.9 |
| Central | 487.6 | 302.2 | 175.5 |
|  | $1253.4 | $988.5 | $745.6 |

---

Expected margins on backlog at June 30, 2025, were slightly lower compared to the expected margins on backlog at June 30, 2024. Of the $1.3 billion of backlog at June 30, 2025, we expect to complete approximately $998.5 million in the 12 months following June 30, 2025. Approximately 91 percent of our backlog at June 30, 2025, related to publicly funded projects, including street and highway construction projects, which are driven primarily by public works projects for state departments of transportation (DOT). Further, there continues to be infrastructure development, as discussed in the following section on Public Funding, which is expected to continue to provide bidding opportunities in our markets. Oregon, however, has seen challenges with both public and private projects contributing to lower backlog in the West segment. On the public side, challenges with the Oregon DOT budget, as discussed in the following section on Public funding, will continue to create a headwind for 2025, while high interest rates and macroeconomic uncertainty have delayed private projects.

Period-over-period increases or decreases in backlog may not be indicative of future revenues, margins, net income or earnings before interest, taxes, depreciation, depletion and amortization (EBITDA). See the section entitled "Item 1A. Risk Factors" in Part I of the Company's 2024 Annual Report for a list of factors that can cause revenues to be realized in periods and at levels that are different from originally projected.

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**Public Funding.** Funding for public projects is dependent on federal and state funding, such as appropriations to the Federal Highway Administration. Earlier this year, the American Society of Civil Engineers published its 2025 Report Card for America's Infrastructure, assigning the United States roads a "D+" grade and estimating that between 2024 and 2033, the country will require more funding than what is currently authorized. It is estimated that a total of $2.2 trillion in funding will be needed for our roadway systems to reach a state of good repair.

Currently, states have continued moving forward with allocating funds from federal programs, such as the Infrastructure Investment and Jobs Act (IIJA), which is authorized to provide $1.2 trillion in funding from 2022 through 2026. As of April 2025, approximately 58 percent percent of IIJA formula funding had yet to be spent in our 14 state operating market. Additionally, DOT budgets in most of the states where we operate remain strong, which favorably affects bidding through the remainder of the year. During the early part of second quarter 2025, Washington, Idaho and North Dakota all passed bills that support their transportation funding. We continue to monitor the implementation and impact of these legislative items. Throughout the first half of 2025, we saw projects in Oregon get delayed and funding diverted from asphalt paving to megaprojects as a result of the state's DOT budget shortfall and general uncertainty for funding. In August 2025, Oregon intends to hold a special legislative session to address transportation funding needs.

**Profitability.** Our management team continually monitors our margins and has been proactive in applying strategies to increase margins to support our long-term profitability goals and to create shareholder value. In 2023, we began implementing EDGE initiatives and established teams to deliver training, assist with targeting higher-margin bidding opportunities across the regions and pursue growth opportunities, as well as identifying ways to increase efficiencies and reduce costs. Since inception, the Materials Process Improvement Team (Materials PIT Crew) has traveled to 25 locations throughout our operational footprint, visiting 152 individual aggregate, asphalt and ready-mix concrete plants. In the effort to drive continuous improvements, these teams have been deploying new technologies and training to enhance productivity.

In 2024, we created the position of Chief Excellence Officer. This newly formed position became effective January 1, 2025, and focuses on expanding our PIT Crews and leading our standardization efforts. Under the leadership of the Chief Excellence Officer, a broader process improvement framework was established, creating more teams focused on standardization, commercial excellence and operational excellence. In June 2025, we appointed a Senior Vice President of Aggregate and Rail. This role will add to the EDGE strategy by working with our PIT Crews to focus on identifying and driving cost reductions at our aggregate production facilities while also helping shape our corporate strategy and evaluating and supporting new aggregate opportunities.

Under the current tariff environment, we did not experience a material direct impact to the results of our financial operations in the first six months of 2025. We continue to closely monitor the effects and changes to these announcements, but currently do not have enough information to fully quantify the direct or indirect impact of these tariffs.

**Growth.** Our management team continues to evaluate growth opportunities, both through organic growth and acquisitions they believe will generate shareholder value. Our business development team is focused on our growth with materials-led businesses in mid-size, high growth markets, and has several targets at various stages of completion in our acquisition pipeline. In the second quarter of 2025, we completed the acquisition of an aggregates and contracting services business in Central Minnesota. In the first quarter of 2025, we completed the acquisition of Strata Corporation, which is now included in our Central segment, as well as the acquisition of an aggregate quarry operation in Washington. Subsequent to June 30, 2025, we acquired an aggregates-led, construction materials and contracting services business in Central Oregon.

In addition, we are investing in multiple organic projects, including an aggregates expansion project in South Dakota that will increase our production capabilities in the Sioux Falls market. This project is scheduled to be operational in 2027. We have also completed construction of a processing plant to manufacture polymer modified asphalt (PMA) and add liquid asphalt storage in our South Dakota operations, which will allow us to more cost effectively supply this local market. In Twin Falls, Idaho, we are greenfielding new ready-mix operations which will provide us with a fixed base to work from and allow us to build a local team in this high-growth market.

**Seasonality.** Our operations can be impacted by weather especially due to a large portion of our markets being geographically located in the northern part of the country. Generally, our construction activity in the northern states is from May into the first part of November. An unusually wet spring or early winter can lead to reduced construction activity, which will also impact our aggregate and asphalt product lines. In the second quarter of 2025, parts of our Central, Mountain and Energy Services segments were impacted by rainfall amounts that were heavier than normal causing a delay in work. These delays have pushed work into the second half of 2025. Also, Texas experienced flooding in some of our market areas in July 2025 that may negatively impact our results of operations in the second half of 2025.

**Workforce.** As a people-first company, we continually take steps to address safety, recruitment and retention of our employees. Safety is one of Knife River's core values. The fundamental tenets of our "I Choose Safety" program are that safety is a choice and that all injuries are preventable. Our team is committed to work safely every day and we continue to advance our culture of safety through engagement and empowering our team members to take action and make meaningful changes that improve their well-being and the well-being of others.

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We continue to deploy resources to attract, develop and retain qualified and diverse talent. As the United States faces shortages in the availability of individuals to fill careers in our industry, we have taken significant steps to showcase construction as a career of choice. In April 2025, we created the position Chief People Officer which oversees our team member relations, recruitment and retention and training and career development.

We own and operate a state-of-the-art training facility, the Knife River Training Center. This unique, 230-acre facility, used corporatewide, provides ample space to enhance the skills of both our new and existing employees through classroom education and hands-on experience. One of the most popular courses at the Knife River Training Center is the commercial driver's license training (CDL), which is helping to address an industry-wide labor shortage. In addition to CDL training for new truck drivers, the training center offers experienced truck driver training, new and experienced equipment operator training and the center offers a diverse array of courses designed to foster leadership and facilitate professional skills development in sales, instruction, and more. These courses are available to all Knife River employees, ensuring that our team members, from frontline workers to senior leadership, have access to the training and support they need to grow in their roles.

Our training and development team, based out of the Knife River Training Center, is comprised of professional instructors, who bring a wealth of knowledge and experience to the learning environment. This dedicated team has a long-standing tradition of delivering quality training programs that are both comprehensive and practical. Their expertise ensures that every employee receives the highest standard of education and skill development.

Consolidated Overview

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | % Change | 2025 | 2024 | % Change |
| | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) |
| Revenue | $833.8 | $806.9 | 3% | $1187.2 | $1136.5 | 4% |
| Cost of revenue | 676.5 | 630.7 | 7% | 1039.6 | 953.8 | 9% |
| Gross profit | 157.3 | 176.2 | (11)% | 147.6 | 182.7 | (19)% |
| Selling, general and administrative expenses | 69.2 | 59.5 | 16% | 142.2 | 119.7 | 19% |
| Operating income | 88.1 | 116.7 | (25)% | 5.4 | 63.0 | (91)% |
| Interest expense | 22.3 | 13.9 | 60% | 37.6 | 27.9 | 35% |
| Other income | 2.2 | 1.3 | 69% | 6.8 | 5.1 | 33% |
| Income (loss) before income taxes | 68.0 | 104.1 | (35)% | (25.4) | 40.2 | (163)% |
| Income tax expense (benefit) | 17.4 | 26.2 | (34)% | (7.3) | 9.9 | (174)% |
| Net income (loss) | $50.6 | $77.9 | (35)% | $(18.1) | $30.3 | (160)% |
| EBITDA\* | $139.7 | $151.4 | (8)% | $98.2 | $130.8 | (25)% |
| Adjusted EBITDA\* | $140.8 | $154.3 | (9)% | $102.8 | $136.6 | (25)% |

---

\*EBITDA and Adjusted EBITDA are non-GAAP financial measures. For more information and reconciliations to the nearest GAAP measures, see the section entitled "Non-GAAP Financial Measures."

Revenue includes revenue from the sale of construction materials and contracting services. Revenue for construction materials is recognized at a point in time when delivery of the products has taken place. Contracting services revenue is recognized over time using an input method based on the cost-to-cost measure of progress on a project.

Cost of revenue includes all material, labor and overhead costs incurred in the production process for our products and services. Cost of revenue also includes depreciation, depletion and amortization attributable to the assets used in the production process.

Gross profit includes revenue less cost of revenue, as defined above, and is the difference between revenue and the cost of making a product or providing a service, before deducting selling, general and administrative expenses, income taxes and interest expense.

Selling, general and administrative expenses include the costs for estimating, bidding and corporate development, as well as costs related to segment and corporate management and administrative functions. Selling expenses can vary depending on the volume of projects in process and the number of employees assigned to estimating and bidding activities. Other general and administrative expenses include outside services; information technology; depreciation and amortization; training, travel and entertainment; office supplies; allowance for expected credit losses; gains or losses on the sale of assets; and other miscellaneous expenses.

Other income includes net periodic benefit costs for our benefit plan expenses, other than service costs; interest income; realized and unrealized gains and losses on investments for our nonqualified benefit plans; earnings or losses on joint venture

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

arrangements; gain on bargain purchase; and other miscellaneous income or expenses, including expenses related to the transition services agreement with MDU Resources Group, Inc.

Income tax (benefit) expense consists of corporate income taxes related to our net income (loss). Income taxes are presented at the corporate services level and not at the individual segments. The effective tax rate can be affected by many factors, including changes in tax laws, regulations or rates, new interpretations of existing laws or regulations and changes to our overall levels of income (loss) before income tax.

The discussion that follows focuses on the key financial measures we use to evaluate the performance of our business, which include revenue, EBITDA and EBITDA margin. EBITDA and EBITDA margin are non-GAAP financial measures used to measure profitability by our management and chief operating decision maker. For more information and reconciliations to the nearest GAAP measures, see the section entitled "Non-GAAP Financial Measures."

The following tables summarize our operating results.

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| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2025 | 2024 | 2024 | 2025 | 2025 | 2024 | 2024 |
| | Dollars | Margin | Dollars | Margin | Dollars | Margin | Dollars | Margin |
| | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) |
| Revenues by segment: |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;West | $317.4 |  | $332.8 |  | $525.7 |  | $531.5 |  |
| &nbsp;&nbsp;Mountain | 176.1 |  | 194.0 |  | 242.1 |  | 253.8 |  |
| &nbsp;&nbsp;Central | 255.2 |  | 214.7 |  | 323.1 |  | 275.7 |  |
| &nbsp;&nbsp;Energy Services | 97.4 |  | 76.2 |  | 111.3 |  | 89.0 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Total segment revenues | 846.1 |  | 817.7 |  | 1202.2 |  | 1150.0 |  |
| Corporate Services and Eliminations | (12.3) |  | (10.8) |  | (15.0) |  | (13.5) |  |
| Consolidated revenues | $833.8 |  | $806.9 |  | $1187.2 |  | $1136.5 |  |
| EBITDA (a): |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;West | $60.7 | 19.1% | $68.5 | 20.6% | $85.7 | 16.3% | $87.9 | 16.5% |
| &nbsp;&nbsp;Mountain | 30.9 | 17.6% | 43.1 | 22.2% | 14.6 | 6.0% | 37.0 | 14.6% |
| &nbsp;&nbsp;Central | 44.4 | 17.4% | 36.2 | 16.9% | 20.1 | 6.2% | 17.4 | 6.3% |
| &nbsp;&nbsp;Energy Services | 17.1 | 17.5% | 19.4 | 25.4% | 9.3 | 8.3% | 16.9 | 19.0% |
| &nbsp;&nbsp;&nbsp;&nbsp;Total segment EBITDA (a) | 153.1 | 18.1% | 167.2 | 20.4% | 129.7 | 10.8% | 159.2 | 13.8% |
| Corporate Services and Eliminations (b) | (13.4) | N.M. | (15.8) | N.M. | (31.5) | N.M. | (28.4) | N.M. |
| Consolidated EBITDA (a) | $139.7 | 16.8% | $151.4 | 18.8% | $98.2 | 8.3% | $130.8 | 11.5% |

---

(a)EBITDA, total segment EBITDA, EBITDA margin and total segment EBITDA margin are non-GAAP financial measures. For more information and a reconciliation to the nearest GAAP measure, see the section entitled "Non-GAAP Financial Measures."

(b)N.M. - not meaningful

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | 2025 | 2024 |
| Sales (thousands): |  |  |  |  |
| &nbsp;&nbsp;Aggregates (tons) | 8826 | 9408 | 12693 | 13663 |
| &nbsp;&nbsp;Ready-mix concrete (cubic yards) | 1041 | 975 | 1585 | 1505 |
| &nbsp;&nbsp;Asphalt (tons) | 1643 | 1813 | 1842 | 2034 |
| Average selling price:\* |  |  |  |  |
| &nbsp;&nbsp;Aggregates (per ton) | $18.80 | $16.84 | $19.49 | $17.76 |
| &nbsp;&nbsp;Ready-mix concrete (per cubic yard) | $197.91 | $184.12 | $198.37 | $185.63 |
| &nbsp;&nbsp;Asphalt (per ton) | $67.45 | $65.82 | $68.92 | $66.76 |

---

\*The average selling price includes freight and delivery and other revenues.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

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| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2025 | 2024 | 2024 | 2025 | 2025 | 2024 | 2024 |
| | Dollars | Margin | Dollars | Margin | Dollars | Margin | Dollars | Margin |
| | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) |
| Revenues by product line: |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Aggregates | $165.9 |  | $158.4 |  | $247.4 |  | $242.7 |  |
| &nbsp;&nbsp;Ready-mix concrete | 206.0 |  | 179.5 |  | 314.4 |  | 279.4 |  |
| &nbsp;&nbsp;Asphalt | 110.8 |  | 119.3 |  | 127.0 |  | 135.7 |  |
| &nbsp;&nbsp;Liquid asphalt | 85.9 |  | 65.3 |  | 98.1 |  | 76.3 |  |
| &nbsp;&nbsp;Other\* | 79.6 |  | 77.7 |  | 123.0 |  | 116.7 |  |
| &nbsp;&nbsp;Contracting services | 340.2 |  | 371.8 |  | 480.2 |  | 497.3 |  |
| &nbsp;&nbsp;Internal sales | (154.6) |  | (165.1) |  | (202.9) |  | (211.6) |  |
| Total revenues | $833.8 |  | $806.9 |  | $1187.2 |  | $1136.5 |  |
| Gross profit by product line: |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;Aggregates | $34.6 | 20.8% | $39.6 | 25.0% | $28.6 | 11.6% | $44.4 | 18.3% |
| &nbsp;&nbsp;Ready-mix concrete | 32.4 | 15.7% | 29.8 | 16.6% | 41.1 | 13.1% | 38.5 | 13.8% |
| &nbsp;&nbsp;Asphalt | 16.8 | 15.2% | 17.3 | 14.5% | 11.2 | 8.8% | 11.7 | 8.6% |
| &nbsp;&nbsp;Liquid asphalt | 14.9 | 17.4% | 15.8 | 24.2% | 10.7 | 10.9% | 14.8 | 19.5% |
| &nbsp;&nbsp;Other\* | 17.8 | 22.3% | 22.3 | 28.7% | 4.5 | 3.7% | 9.7 | 8.3% |
| &nbsp;&nbsp;Contracting services | 40.8 | 12.0% | 51.4 | 13.8% | 51.5 | 10.7% | 63.6 | 12.8% |
| Total gross profit | $157.3 | 18.9% | $176.2 | 21.8% | $147.6 | 12.4% | $182.7 | 16.1% |

---

\*Other includes cement, merchandise, fabric and spreading, and other products and services that individually are not considered to be a core line of business.

***Three Months Ended June 30, 2025, Compared to Three Months Ended June 30, 2024***

**Revenue**

Revenue increased $26.9 million, largely driven by the addition of Strata in March 2025 and Albina in November 2024, as well as price increases of mid-single digits on aggregate and ready-mix and low-single digits on asphalt. Partially offsetting the increased revenue was lower contracting services work in Oregon and Montana, due in part to less public-agency work and project timing, which also impacted aggregate and asphalt sales volumes. Parts of our Central and Mountain segments also faced higher-than-normal rainfall in the quarter which delayed work further impacting contracting services, aggregate and asphalt revenues.

**Gross profit and gross margin**

Gross profit decreased $18.9 million, largely due to less work performed in the quarter, as previously discussed. The decrease in aggregate volumes further impacted our results as we had less production and higher per-unit fixed costs. In addition, Energy Services saw a decrease in gross profit mostly due to competitive market conditions and higher repairs and maintenance costs. These decreases were offset in part by the contributions of Strata and Albina, higher gross profit in California from favorable construction project execution and higher margins in Alaska and Hawaii.

**Selling, general and administrative expenses**

Selling, general and administrative expenses increased $9.7 million for the second quarter. Our reportable segments had higher costs of $11.2 million, primarily due to additional overhead from the acquisitions of Strata and Albina, as well as increased labor-related costs partly due to additional employees. Partially offsetting the increase was higher gains on asset sales of $6.1 million.

Corporate Services had a decrease in selling, general and administrative costs of $1.5 million compared to second quarter 2024. This decrease is largely related to lower incurred but not reported losses for our self-insured health care plan and the absence of one-time Separation costs in 2024 of $1.5 million. Offsetting the cost decrease was an increase in due diligence and integration costs of $1.9 million related to corporate development and completed acquisitions, as well as higher labor-related costs for additional staff.

**Interest expense**

Interest expense increased $8.4 million due primarily to higher average debt balances with the issuance of a new Term Loan B in March of 2025 and borrowings under our revolving credit facility in the second quarter of 2025, offset in part by lower average interest rates.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Other income**

Other income increased $900,000, largely driven by increased investment returns of $1.2 million on our nonqualified defined benefit plans, offset in part by a decrease in interest income of $300,000.

**Income tax expense**

Income tax expense decreased $8.8 million, corresponding with lower income before income taxes.

***Six Months Ended June 30, 2025, Compared to Six Months Ended June 30, 2024***

**Revenue**

Revenue increased $50.7 million, largely driven by the addition of Strata in March 2025 and Albina in November 2024, as well as price increases of mid-single digits on aggregate and ready-mix and low-single digits on asphalt. California saw an increase in public-agency and commercial work, which positively impacted contracting services and ready-mix revenues. Partially offsetting the increased revenue was lower contracting services work in Oregon and Montana, due in part to less public-agency work and timing of projects, which also impacted aggregate and asphalt sales volumes. Parts of our Central and Mountain segments also faced higher-than-normal rainfall in the second quarter which delayed work further impacting contracting services, aggregate and asphalt revenues.

**Gross profit and gross margin**

Gross profit decreased $35.1 million, largely due to less work performed, as previously discussed. The decrease in aggregate volumes further impacted our results as we had less production and higher per-unit fixed costs. In addition, Energy Services saw a decrease in gross profit mostly due to competitive market conditions and higher repairs and maintenance costs. These decreases were offset in part by the contributions of Strata, higher gross profit in California from favorable construction project execution and higher margins in Alaska and Hawaii.

**Selling, general and administrative expenses**

Selling, general and administrative expenses increased $22.5 million for the first half of the year. Our reportable segments had higher costs of $20.3 million, primarily due to additional overhead from the acquisitions of Strata and Albina, as well as increased labor-related costs partly due to additional employees.

Corporate Services had an increase in selling, general and administrative costs of $2.2 million. This increase is primarily due to due diligence and integration costs of $7.5 million related to corporate development and completed acquisitions, as well as higher labor-related costs for additional staff. Offsetting the decrease was lower incurred but not reported losses for our self-insured health care plan and the absence of one-time Separation costs in 2024 of $3.8 million.

**Interest expense**

Interest expense increased $9.7 million due primarily to higher average debt balances with the issuance of a new Term Loan B in March of 2025 and borrowings under our revolving credit facility in the second quarter of 2025, offset in part by lower average interest rates.

**Other income**

Other income increased $1.7 million, largely driven by a one-time gain of $3.5 million on the bargain purchase of an aggregate quarry operation in the West segment, offset in part by a decrease in interest income of $1.0 million and lower investment returns on our nonqualified defined benefit plans.

**Income tax (benefit) expense**

Income tax benefit increased $17.2 million, due to a loss before income taxes in 2025 compared to income before income taxes in 2024.

Business Segment Financial and Operating Data

A discussion of key financial data from our business segments follows. We provide segment-level information by revenue, EBITDA and EBITDA margin, as these are the measures of profitability used by our chief operating decision maker to assess operational results.

In January 2025, we made a change to our organizational structure to better align with our business strategy. We reorganized our business segments to reflect changes in the way our chief operating decision maker evaluates performance, makes operating decisions and allocates resources. Our former Pacific and Northwest operating segments were combined to form the new West operating segment. Our former North Central and South operating segments were combined to form the new Central operating segment. The reorganization resulted in four operating segments: West, Mountain, Central and Energy Services, each of which is also a reportable segment. Each segment's performance is evaluated based on segment results without allocating corporate expenses, which include corporate costs associated with accounting, legal, treasury, information technology, human resources, and other corporate expenses that support the operating segments. Prior periods presented have been recast to conform to the current reportable segment presentation.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Results of Operations - West**

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | % Change | 2025 | 2024 | % Change |
| | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) |
| Revenue | $317.4 | $332.8 | (5)% | $525.7 | $531.5 | (1)% |
| EBITDA | $60.7 | $68.5 | (11)% | $85.7 | $87.9 | (3)% |
| EBITDA margin | 19.1% | 20.6% |  | 16.3% | 16.5% |  |

---

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| | | | | |
|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | 2025 | 2024 |
| | (In millions) | (In millions) | (In millions) | (In millions) |
| Revenues: |  |  |  |  |
| &nbsp;&nbsp;Aggregates | $74.8 | $84.4 | $131.1 | $143.3 |
| &nbsp;&nbsp;Ready-mix concrete | 90.0 | 82.3 | 159.7 | 145.3 |
| &nbsp;&nbsp;Asphalt | 38.5 | 41.1 | 47.4 | 51.7 |
| &nbsp;&nbsp;Other\* | 49.3 | 47.9 | 83.7 | 76.8 |
| &nbsp;&nbsp;Contracting services | 121.2 | 131.8 | 188.7 | 196.5 |
| &nbsp;&nbsp;Internal sales | (56.4) | (54.7) | (84.9) | (82.1) |
|  | $317.4 | $332.8 | $525.7 | $531.5 |

---

\*Other includes cement, merchandise, transportation services and other products that individually are not considered to be a core line of business for the segment.

***Three Months Ended June 30, 2025, Compared to Three Months Ended June 30, 2024***

Revenue decreased $15.4 million, primarily due to less available public-agency and commercial work and timing of projects in Oregon which led to a $20.9 million decrease in contracting services revenue, as well as contributing to lower aggregate sales volumes of $15.4 million and asphalt sales volumes of $3.0 million. Across the segment, higher aggregates and ready-mix pricing added $14.0 million, while California saw an increase in public-agency and commercial work which added $10.3 million to contracting services revenue. In addition, market demand in Hawaii contributed to increased ready-mix and cement volumes.

EBITDA decreased 11 percent for the quarter, resulting from decreased margins on contracting services, aggregates and asphalt largely driven by fewer projects in Oregon, as previously mentioned. California saw 3.4 percent higher contracting margins due to the execution on completed work and higher revenues while Hawaii and Alaska also saw increased margins.

***Six Months Ended June 30, 2025, Compared to Six Months Ended June 30, 2024***

Revenue decreased $5.8 million, mostly due to lower overall market demand resulting in less public-agency and commercial work in Oregon which led to a 15.9 percent decrease in contracting services revenue, as well as contributing to lower aggregate sales volumes by $26.9 million and asphalt sales volumes by $4.3 million. Across the segment, higher aggregates, ready-mix and cement pricing added $28.3 million, while California saw an increase in public-agency and commercial work which added $15.8 million to contracting services revenue. In addition, market demand in Hawaii increased ready-mix and cement volumes by $7.8 million compared to this time last year.

EBITDA decreased 3 percent year-over-year, resulting from decreased margins on contracting services, aggregates and asphalt largely driven by fewer projects in Oregon, as previously mentioned. Selling, general and administrative costs were $2.4 million higher largely due to increased labor-related costs, offset in part by higher gains on asset sales of $2.9 million. California saw higher contracting margins due to favorable job execution on completed work and higher revenues while Hawaii and Alaska also saw increased margins. The segment also recognized a one-time gain of $3.5 million due to an acquisition in the first quarter of 2025 that was a bargain purchase, as discussed in Note 10.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Results of Operations - Mountain**

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | % Change | 2025 | 2024 | % Change |
| | (In millions) | (In millions) | (In millions) | | | |
| Revenue | $176.1 | $194.0 | (9)% | $242.1 | $253.8 | (5)% |
| EBITDA | $30.9 | $43.1 | (28)% | $14.6 | $37.0 | (60)% |
| EBITDA margin | 17.6% | 22.2% |  | 6.0% | 14.6% |  |

---

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| | | | | |
|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | 2025 | 2024 |
| | (In millions) | (In millions) | (In millions) | (In millions) |
| Revenues: |  |  |  |  |
| &nbsp;&nbsp;Aggregates | $29.3 | $31.1 | $37.4 | $40.6 |
| &nbsp;&nbsp;Ready-mix concrete | 35.7 | 35.0 | 48.8 | 48.8 |
| &nbsp;&nbsp;Asphalt | 28.8 | 32.9 | 29.3 | 33.7 |
| &nbsp;&nbsp;Contracting services | 110.7 | 131.6 | 158.7 | 171.2 |
| &nbsp;&nbsp;Internal sales | (28.4) | (36.6) | (32.1) | (40.5) |
|  | $176.1 | $194.0 | $242.1 | $253.8 |

---

***Three Months Ended June 30, 2025, Compared to Three Months Ended June 30, 2024***

Revenue decreased $17.9 million in the quarter, primarily due to decreased contracting services work, which also brought aggregate and asphalt volumes down. Montana saw a decline in contracting services revenue of approximately 41 percent, largely due to lower asphalt paving work as a result of the DOT spending a larger portion of its budget on bridge structures, timing of projects and higher-than-normal rainfall amounts in certain markets. Idaho also saw lower contracting services revenue due to the timing of public-agency and airport work compared to the prior year. Partially offsetting the decrease was higher aggregate and ready-mix pricing of $4.6 million from dynamic pricing and the mix of product sold. In addition, Wyoming had more early season contracting services work that contributed an additional $2.2 million compared to the prior year.

EBITDA decreased $12.2 million for the quarter. Lower margins on aggregates was largely the result of lower aggregate sales volumes due to a later start to the construction season and fewer construction projects, as previously discussed, and higher per-unit fixed costs, offset in part by higher pricing. Contracting services and asphalt margins also decreased due to less work, as previously discussed, and selling, general and administrative costs were $1.3 million higher, largely from increased labor-related costs.

***Six Months Ended June 30, 2025, Compared to Six Months Ended June 30, 2024***

Revenue decreased $11.7 million, primarily due to the decrease in contracting services work in the second quarter of the year, which also brought aggregate and asphalt volumes down by $10.5 million. Montana saw a decline in contracting services revenue largely due to lower asphalt paving work as a result of the DOT spending a larger portion of its budget on bridge structures, timing of projects and higher-than-normal rainfall amounts in certain markets. Idaho also saw lower contracting services revenue due to the timing of public-agency and airport work compared to the prior year. Partially offsetting the decrease was higher aggregate and ready-mix pricing of $6.0 million from dynamic pricing and the mix of product sold. In addition, Wyoming saw an increase to contracting services revenue of $4.5 million due to more early season work than prior year.

EBITDA decreased $22.4 million year-over-year. Lower margins on aggregates was largely the result of lower aggregate sales volumes due to a later start to the construction season and fewer construction projects, as previously discussed, and higher per-unit fixed costs, as well as the mix of product sold. Contracting services experienced lower margins in Montana due to less available work. Asphalt margins also decreased due to less work, as previously discussed, and selling, general and administrative costs were $2.0 million higher, largely from increased labor-related costs.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Results of Operations - Central**

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | % Change | 2025 | 2024 | % Change |
| | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) |
| Revenue | $255.2 | $214.7 | 19% | $323.1 | $275.7 | 17% |
| EBITDA | $44.4 | $36.2 | 23% | $20.1 | $17.4 | 15% |
| EBITDA margin | 17.4% | 16.9% |  | 6.2% | 6.3% |  |

---

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| | | | | |
|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | 2025 | 2024 |
| | (In millions) | (In millions) | (In millions) | (In millions) |
| Revenues: |  |  |  |  |
| &nbsp;&nbsp;Aggregates | $61.8 | $42.9 | $78.9 | $58.8 |
| &nbsp;&nbsp;Ready-mix concrete | 80.3 | 62.2 | 105.9 | 85.3 |
| &nbsp;&nbsp;Asphalt | 43.5 | 45.3 | 50.3 | 50.3 |
| &nbsp;&nbsp;Other\* | 12.6 | 10.9 | 15.0 | 12.7 |
| &nbsp;&nbsp;Contracting services | 108.3 | 108.4 | 132.8 | 129.6 |
| &nbsp;&nbsp;Internal sales | (51.3) | (55.0) | (59.8) | (61.0) |
|  | $255.2 | $214.7 | $323.1 | $275.7 |

---

\*Other includes merchandise and other products that individually are not considered to be a core line of business for the segment.

***Three Months Ended June 30, 2025, Compared to Three Months Ended June 30, 2024***

Revenue increased 19 percent year-over-year to $255.2 million, primarily as a result of the first full-quarter reporting of Strata's operations which contributed $46.9 million and price increases across all product lines. In addition, Texas saw increased aggregate and ready-mix volumes of $1.6 million as a result of third-party and project specific sales in the quarter. Partially offsetting these increases was less contracting services work in Minnesota and North Dakota due to higher-than-average rainfall in the period delaying work, which also caused decreased aggregate and asphalt volumes.

EBITDA improved $8.2 million with approximately $5.7 million of the increase coming from Strata operations and $4.3 million from increased gains on asset sales primarily in Texas. Slightly offsetting the increase was reduced work in Minnesota and North Dakota as these states experienced unfavorable weather in the later part of the quarter, negatively impacting contracting services margin, as well as decreased sales across the product lines. Also lowering EBITDA was the impact of selling acquired inventory after markup to fair value as part of acquisition accounting for Strata of $1.1 million and higher selling, general and administrative costs, primarily due to higher labor-related costs due to additional positions as the segment continues to grow and expand operations.

***Six Months Ended June 30, 2025, Compared to Six Months Ended June 30, 2024***

Revenue increased $47.4 million, largely due to the addition of Strata in March 2025 and price increases across all product lines. In addition, Texas saw increased construction activity for public-paving projects. Partially offsetting these increases was less contracting services work in Minnesota and North Dakota due to higher-than-average rainfall in the period delaying work, which also caused decreased aggregate and asphalt volumes.

EBITDA improved 15 percent due to increased gains on asset sales of $4.2 million and Strata contributing $3.7 million. In addition, favorable project execution and timing of project incentives increased contracting services margins. Offsetting these increases was a delay in construction work due to unfavorable weather in Minnesota and North Dakota. Also lowering EBITDA was the impact of selling acquired inventory after markup to fair value as part of acquisition accounting for Strata of $1.1 million and higher selling, general and administrative costs, primarily due to higher labor-related costs due to additional positions as the segment continues to grow and expand operations.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Results of Operations - Energy Services**

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | % Change | 2025 | 2024 | % Change |
| | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) | (In millions) |
| Revenue | $97.4 | $76.2 | 28% | $111.3 | $89.0 | 25% |
| EBITDA | $17.1 | $19.4 | (12)% | $9.3 | $16.9 | (45)% |
| EBITDA margin | 17.5% | 25.4% |  | 8.3% | 19.0% |  |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | 2025 | 2024 |
| | (In millions) | (In millions) | | |
| Revenues: |  |  |  |  |
| Liquid Asphalt | $85.9 | $65.3 | $98.1 | $76.3 |
| &nbsp;&nbsp;Other\* | 14.2 | 14.4 | 17.2 | 17.5 |
| &nbsp;&nbsp;Internal sales | (2.7) | (3.5) | (4.0) | (4.8) |
|  | $97.4 | $76.2 | $111.3 | $89.0 |

---

\*Other includes fabric and spreading, burner fuels, merchandise and other products that individually are not considered to be a core line of business for the segment.

***Three Months Ended June 30, 2025, Compared to Three Months Ended June 30, 2024***

Revenue increased $21.2 million, primarily due to contributions from the acquisition of Albina Asphalt in November 2024. In addition, the new polymer modified asphalt processing plant in South Dakota contributed an additional $3.6 million in revenue. These increases were partially offset by lower volumes due to unfavorable weather and lower pricing in some locations driven by current liquid asphalt market pricing.

EBITDA decreased $2.3 million, as a result of lower margins due to competitive market conditions, planned and required maintenance expenses to our railcar fleet, continued tank and equipment repair costs at our terminals and the impact of selling acquired inventory after markup to fair value as part of acquisition accounting for Albina of $325,000.

***Six Months Ended June 30, 2025, Compared to Six Months Ended June 30, 2024***

Revenue increased $22.3 million, primarily due to contributions from the acquisition of Albina Asphalt in November 2024. In addition, the new polymer modified asphalt processing plant in South Dakota contributed an additional $3.6 million in revenue. These increases were partially offset by lower volumes due to unfavorable weather and lower pricing in some locations driven by current liquid asphalt market pricing.

EBITDA decreased $7.6 million, as a result of lower margins due to competitive market conditions, planned and required maintenance expenses related to our railcar fleet, continued tank and equipment repair costs at our terminals and the impact of selling acquired inventory after markup to fair value as part of acquisition accounting for Albina of $343,000.

**Corporate Services and Eliminations**

Corporate Services includes all expenses related to the corporate functions of our company, as well as insurance activity at our captive insurer; interest expense on a majority of our long-term debt; interest income; and unrealized gains or losses on investments for nonqualified benefit plans.

***Three Months Ended June 30, 2025, Compared to Three Months Ended June 30, 2024***

During the second quarter of 2025, Corporate Services contributed negative EBITDA of $13.4 million, compared to negative EBITDA of $15.8 million in the prior year. Corporate Services had lower selling, general and administrative costs of $1.5 million in the quarter, driven largely by lower incurred but not reported losses for our self-insured health care plan and the absence of $1.5 million of one-time Separation costs incurred in 2024. Offsetting this benefit were higher due diligence and integration costs of $1.9 million related to corporate development and completed acquisitions, as well as higher labor-related costs for additional staff and stock-based compensation expense. Corporate Services also had increased investment returns of $1.2 million on our nonqualified defined benefit plans.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

***Six Months Ended June 30, 2025, Compared to Six Months Ended June 30, 2024***

During the first half of 2025, Corporate Services contributed negative EBITDA of $31.5 million, compared to negative EBITDA of $28.4 million in the prior year. Corporate Services had higher selling, general and administrative costs of $2.2 million in the year, driven largely by an increase in due diligence and integration costs of $7.5 million related to corporate development and completed acquisitions, as well as higher labor related costs for additional staff and stock-based compensation expense. Offsetting the decrease was lower incurred but not reported losses for our self-insured health care plan and the absence of one-time Separation costs in 2024 of $3.8 million. Corporate Services also had lower investment returns of $800,000 on our nonqualified defined benefit plans.

Liquidity and Capital Resources

At June 30, 2025, we had unrestricted cash and cash equivalents of $26.6 million, working capital of $706.1 million and borrowing capacity of $294.0 million on our revolving credit facility, net of our outstanding letters of credit. Working capital is calculated as current assets less current liabilities. As of June 30, 2025, we had sufficient liquid assets and borrowing capacity to meet our financial commitments, debt obligations and anticipated capital expenditures for at least the next 12 months.

Given the seasonality of our business, we typically experience significant fluctuations in working capital needs and balances throughout the year. Working capital requirements generally increase in the first half of the year as we build up inventory and focus on preparing our equipment, facilities and crews for our construction season. Working capital levels then decrease as the construction season winds down and we collect on receivables.

The ability to fund our cash needs will depend on the ongoing ability to generate cash from operations and obtain debt financing with competitive rates. We rely on access to capital markets as sources of liquidity for capital requirements not satisfied by cash flows from operations, particularly in the first half of the year due to the seasonal nature of the business. Our principal uses of cash in the future will be to fund our operations, working capital needs, capital expenditures, repayment of debt and strategic business development transactions.

On March 7, 2025, we entered into an amendment to our senior secured credit agreement to increase our revolving credit facility from $350 million to $500 million and extend the maturity to March 7, 2030, refinance our existing $275 million Term Loan A with a maturity of March 7, 2030, and provide for a new Term Loan B in an aggregate principal amount of $500.0 million with a maturity date of March 8, 2032. We used the proceeds from the issuance of the new Term Loan B to fund a portion of Strata's purchase price. Separately, we increased the total commitments under our existing revolving credit facility for future expenditures. For more information on the debt agreements and covenant restrictions, see Note 13.

**Capital expenditures**

We are committed to disciplined capital allocation, including reinvesting in our company to maintain fixed assets, improve operations and grow our business.

We currently estimate total 2025 capital expenditures for maintenance and improvement to be between $160 million and $225 million. For the six months ended June 30, 2025, we spent $111.0 million, largely on the replacement of depleting aggregate reserves, construction equipment and plant improvements.

Additionally, for the six months ended June 30, 2025, we spent $619.5 million on growth initiatives, which comprised of $501.9 million on acquisitions and $117.6 million on aggregate expansion and greenfield projects. In connection with the Strata acquisition, we also received proceeds of $14.5 million on the sale of four ready-mix plant operations. For the remainder of 2025, we estimate to spend $50.1 million on organic growth projects. Capital expenditures for future acquisitions and new organic growth opportunities would be incremental to our outlined capital program. It is anticipated that capital expenditures for 2025 will be funded by various sources, including internally generated cash and debt facilities.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Cash flows**

---

| | | |
|:---|:---|:---|
| | Six Months Ended | Six Months Ended |
| | June 30, | June 30, |
| | 2025 | 2024 |
| | (In millions) | (In millions) |
| Net cash provided by (used in) |  |  |
| &nbsp;&nbsp;&nbsp;Operating activities | $(167.8) | $(89.7) |
| &nbsp;&nbsp;&nbsp;Investing activities | (701.9) | (110.2) |
| &nbsp;&nbsp;&nbsp;Financing activities | 666.3 | (5.2) |
| Decrease in cash, cash equivalents and restricted cash | (203.4) | (205.1) |
| Cash, cash equivalents and restricted cash -- beginning of year | 281.1 | 262.3 |
| Cash, cash equivalents and restricted cash -- end of period | $77.7 | $57.2 |

---

***Operating activities***

---

| | | | |
|:---|:---|:---|:---|
| | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, |
| | 2025 | 2024 | Variance |
| | (In millions) | (In millions) | (In millions) |
| Components of net cash used in operating activities: |  |  |  |
| Net income (loss) | $(18.1) | $30.3 | $(48.4) |
| Adjustments to reconcile net income (loss) to net cash used by operating activities | 79.9 | 69.8 | 10.1 |
| Changes in current assets and liabilities, net of acquisitions: |  |  |  |
| &nbsp;&nbsp;Receivables | (177.4) | (178.1) | .7 |
| &nbsp;&nbsp;Inventories | (59.9) | (65.4) | 5.5 |
| &nbsp;&nbsp;Other current assets | (18.1) | 2.5 | (20.6) |
| &nbsp;&nbsp;Accounts payable | 36.2 | 57.9 | (21.7) |
| &nbsp;&nbsp;Other current liabilities | (15.6) | (12.8) | (2.8) |
| Pension and postretirement benefit plan contributions | (.3) | (.3) |  |
| Other noncurrent charges | 5.5 | 6.4 | (.9) |
| Net cash used in operating activities | $(167.8) | $(89.7) | $(78.1) |

---

Cash used in operating activities at June 30, 2025, increased $78.1 million, largely related to higher working capital needs and higher net loss in the period. Cash used by working capital components totaled $234.8 million for the six months ended June 30, 2025, compared to $195.9 million for the six months ended June 30, 2024. This increase in cash usage was primarily the result of higher payroll-related costs due in part to the additional employees associated with acquisitions; timing of prepaid insurance and income taxes; and fluctuations in the timing of payment on accounts payable.

***Investing activities***

---

| | | | |
|:---|:---|:---|:---|
| | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, |
| | 2025 | 2024 | Variance |
| | (In millions) | (In millions) | (In millions) |
| Capital expenditures | $(228.6) | $(103.6) | $(125.0) |
| Acquisitions, net of cash acquired | (501.9) | (10.2) | (491.7) |
| Net proceeds from sale or disposition of property and other | 31.4 | 6.8 | 24.6 |
| Investments | (2.8) | (3.2) | .4 |
| Net cash used in investing activities | $(701.9) | $(110.2) | $(591.7) |

---

The increase in cash used in investing activities for the six months ended June 30, 2025, compared to the six months ended June 30, 2024, was primarily due to additional investments to grow our company. We spent $491.7 million more on acquisitions in 2025 to acquire Strata, an aggregates quarry operation in Oregon and a construction materials and contracting services business in Minnesota, as discussed in Note 10. We also spent $125.0 million more on capital expenditures, including the replenishment of depleting aggregate reserves and greenfield projects. The increase in cash usage was offset in part by proceeds from the sale of ready-mix operations in the Central segment in the first quarter of 2025, as discussed in Note 10, and non-strategic asset sales in both the West and Central segments in the second quarter of 2025.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

***Financing activities***

---

| | | | |
|:---|:---|:---|:---|
| | Six Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, |
| | 2025 | 2024 | Variance |
| | (In millions) | (In millions) | (In millions) |
| Issuance of long-term debt | $683.0 | $— | $683.0 |
| Repayment of long-term debt | (3.0) | (3.5) | .5 |
| Debt issuance costs | (11.1) |  | (11.1) |
| Tax withholding on stock-based compensation | (2.6) | (1.7) | (.9) |
| Net cash provided by (used in) financing activities | $666.3 | $(5.2) | $671.5 |

---

The increase in cash flows provided by financing activities for the six months ended June 30, 2025, compared to the six months ended June 30, 2024, was largely related to the funding of a new Term Loan B in March of 2025, as well as borrowings under our revolving credit facility in the second quarter of 2025, as discussed in Note 13. Offsetting the cash provided by long-term debt were higher debt issuance costs associated with the amendment of our senior secured credit agreement to increase our revolving credit facility capacity, extend the maturity date of the revolving credit facility and Term Loan A, and the issuance of a new Term Loan B.

**Material cash requirements**

There were no material changes in the contractual obligations from those reported in the 2024 Annual Report other than as set forth below. For more information on our contractual obligations on long-term debt, operating leases and purchase commitments, see Part II, Item 8 in the 2024 Annual Report.

Our material short-term and long-term cash requirements include repayment of third-party long-term debt and related interest payments, payments on operating lease agreements, payments of obligations on purchase commitments and asset retirement obligations.

At June 30, 2025, our long-term debt reflected an increase of approximately $680.0 million from the balance at December 31, 2024. This increase is due to issuing a new $500 million Term Loan B facility with the proceeds being used to fund a portion of Strata's purchase price in addition to borrowing $183 million under our revolving credit facility to fund seasonal working capital needs, an asset purchase and additional acquisitions.

At June 30, 2025, our total estimated interest payments over the life of our debt reflected an increase of approximately $259.1 million from the total estimated interest payments at December 31, 2024. This increase is primarily due to the change in long-term debt outstanding related to the new Term Loan B and borrowings under our revolving credit facility as previously mentioned.

**Defined benefit pension plans**

We have frozen noncontributory qualified defined benefit pension plans for certain employees. Various assumptions are used in calculating the benefit expense (income) and liability (asset) related to these plans. Costs of providing these benefits are dependent upon assumptions of future conditions and bear the risk of changing.

There were no material changes to our qualified noncontributory defined benefit pension plans from those reported in the 2024 Annual Report. We do not expect to make any pension plan contributions in 2025 as the plan is fully funded. For more information, see Part II, Item 8 in the 2024 Annual Report.

**Non-GAAP Financial Measures**

The Business Segment Financial and Operating Data includes financial information prepared in accordance with GAAP, as well as EBITDA, EBITDA margin, Adjusted EBITDA and Adjusted EBITDA margin, as well as total segment measures, as applicable, that are considered non-GAAP measures of financial performance. These non-GAAP financial measures are not measures of financial performance under GAAP. The items excluded from these non-GAAP financial measures are significant components in understanding and assessing financial performance. Therefore, these non-GAAP financial measures should not be considered substitutes for the applicable GAAP metric.

EBITDA, EBITDA margin, Adjusted EBITDA and Adjusted EBITDA margin are most directly comparable to the corresponding GAAP measures of net income and net income margin. We believe these non-GAAP financial measures, in addition to corresponding GAAP measures, are useful to investors by providing meaningful information about operational efficiency compared to our peers by excluding the impacts of differences in tax jurisdictions and structures, debt levels and capital investment. We believe Adjusted EBITDA and Adjusted EBITDA margin are useful performance measures because they allow for an effective evaluation of our operating performance by excluding stock-based compensation and unrealized gains and losses on benefit plan investments as they

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

are considered non-cash and not part of our core operations. We also exclude the one-time, non-recurring costs associated with the Separation as those are not expected to continue. We believe EBITDA and Adjusted EBITDA assist rating agencies and investors in comparing operating performance across operating periods on a consistent basis by excluding items management does not believe are indicative of our operating performance. Additionally, EBITDA and Adjusted EBITDA are important financial metrics for debt investors who utilize debt to EBITDA and debt to Adjusted EBITDA ratios. We believe these non-GAAP financial measures, including total segment measures, as applicable, are useful performance measures because they provide clarity as to our operational results. Our management uses these non-GAAP financial measures in conjunction with GAAP results when evaluating our operating results internally and calculating employee incentive compensation.

EBITDA is calculated by adding back income taxes, interest expense (net of interest income) and depreciation, depletion and amortization expense to net income (loss). EBITDA margin is calculated by dividing EBITDA by revenues. Adjusted EBITDA is calculated by adding back unrealized gains and losses on benefit plan investments, stock-based compensation and one-time Separation costs, to EBITDA. Adjusted EBITDA margin is calculated by dividing Adjusted EBITDA by revenues. These non-GAAP financial measures are calculated the same for both the total segment and consolidated metrics and should not be considered as alternatives to, or more meaningful than, GAAP financial measures such as net income or net income margin, and are intended to be helpful supplemental financial measures for investors' understanding of our operating performance. Our non-GAAP financial measures are not standardized; therefore, it may not be possible to compare these financial measures with other companies' EBITDA, EBITDA margin, Adjusted EBITDA and Adjusted EBITDA margin measures having the same or similar names.

The following information reconciles segment and consolidated net income (loss) to EBITDA and Adjusted EBITDA and provides the calculation of EBITDA margin and Adjusted EBITDA margin. Interest expense, net, is net of interest income that is included in other income on the Consolidated Statements of Operations.

---

| | | | | |
|:---|:---|:---|:---|:---|
| | Three Months Ended | Three Months Ended | Six Months Ended | Six Months Ended |
| | June 30, | June 30, | June 30, | June 30, |
| | 2025 | 2024 | 2025 | 2024 |
| | (In millions) | (In millions) | (In millions) | (In millions) |
| Net income (loss) | $50.6 | $77.9 | $(18.1) | $30.3 |
| Depreciation, depletion and amortization | 50.2 | 34.5 | 88.9 | 66.7 |
| Interest expense, net | 21.5 | 12.8 | 34.7 | 23.9 |
| Income taxes | 17.4 | 26.2 | (7.3) | 9.9 |
| EBITDA | $139.7 | $151.4 | $98.2 | $130.8 |
| Unrealized (gains) losses on benefit plan investments | (1.8) | (0.4) | (1.1) | (1.6) |
| Stock-based compensation expense | 2.9 | 1.8 | 5.7 | 3.6 |
| One-time separation costs |  | 1.5 |  | 3.8 |
| Adjusted EBITDA | $140.8 | $154.3 | $102.8 | $136.6 |
| Revenue | $833.8 | $806.9 | $1187.2 | $1136.5 |
| Net income (loss) margin | 6.1% | 9.7% | (1.5)% | 2.7% |
| EBITDA margin | 16.8% | 18.8% | 8.3% | 11.5% |
| Adjusted EBITDA margin | 16.9% | 19.1% | 8.7% | 12.0% |

---

**New Accounting Standards**

For information regarding new accounting standards, see Note 3, which is incorporated by reference.

**Critical Accounting Estimates**

Our critical accounting estimates include revenue recognized using the cost-to-cost measure of progress for contracts; fair values of acquired assets and liabilities assumed under the acquisition method of accounting; impairment testing of goodwill; and impairment testing of long-lived assets excluding goodwill. There were no material changes in the Company's critical accounting estimates from those that were previously reported in the Company's 2024 Annual Report.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**Item 3. Quantitative and Qualitative Disclosures About Market Risk**

We are exposed to the impact of market fluctuations associated with interest rates and commodity prices. We have policies and procedures to assist in controlling these market risks and from time to time have utilized derivatives to manage a portion of our risk.

**Interest rate risk**

As of June 30, 2025, we had $944.8 million of outstanding borrowings under our Term Loan A, Term Loan B and revolving credit facility, which bear interest at a variable rate. As of June 30, 2025, the weighted-average rate in effect was 6.29 percent, therefore, a hypothetical increase of 1.00 percent to the interest rate at June 30, 2025, would increase the all-in rate to 7.29 percent, the effect of which would increase the Company's interest expense by $9.4 million over the next 12 months based on the balances outstanding for these borrowings as of June 30, 2025.

At June 30, 2025, we had no outstanding interest rate hedges.

**Commodity price risk**

There were no material changes to commodity price risk that we faced from those reported in the 2024 Annual Report.

**Item 4. Controls and Procedures**

**Evaluation of disclosure controls and procedures**

The term "disclosure controls and procedures" is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. The Company's disclosure controls and other procedures are designed to provide reasonable assurance that information required to be disclosed in the reports that the Company files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms. The Company's disclosure controls and other procedures are designed to provide reasonable assurance that information required to be disclosed is accumulated and communicated to management, including the Company's chief executive officer and chief financial officer, to allow timely decisions regarding required disclosure. The Company's management, with the participation of the Company's chief executive officer and chief financial officer, has evaluated the effectiveness of the Company's disclosure controls and other procedures as of the end of the period covered by this report. Based upon that evaluation, the chief executive officer and the chief financial officer have concluded that, as of the end of the period covered by this report, such controls and procedures were effective at a reasonable assurance level.

**Changes in internal controls**

We completed the acquisitions of Albina Asphalt and Strata Corporation on November 2, 2024 and March 7, 2025, respectively. Under the guidelines established by the SEC, companies are permitted to exclude acquisitions from their assessment of internal control over financial reporting during the first year of an acquisition while integrating the acquired company. We are in the process of assessing the internal control over financial reporting of the acquired companies and integrating them with our existing internal controls over financial reporting.

Except as noted above, there were no changes in our internal controls over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the quarter ended June 30, 2025, that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**<u>Part II -- Other Information</u>**

**Item 1. Legal Proceedings**

There were no material changes to the Company's legal proceedings that were previously reported in Part 1, Item 3 - Legal Proceedings in the 2024 Annual Report.

**Item 1A. Risk Factors**

Refer to the Company's risk factors that are disclosed in Part I, Item 1A. Risk Factors in its 2024 Annual Report that could be materially harmful to the Company's business, prospects, financial condition or financial results if they occur.

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

None.

**Item 3. Defaults Upon Senior Securities**

None.

**Item 4. Mine Safety Disclosures**

For information regarding mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K, see Exhibit 95 to this Form 10-Q, which is incorporated herein by reference.

**Item 5. Other Information**

During the three months ended June 30, 2025, no director or officer of the Company adopted or terminated a "Rule 10b5-1 trading arrangement" or "non-Rule 10b5-1 trading arrangement," as each term is defined in Item 408(a) of Regulation S-K.

**Item 6. Exhibits**

See the index to exhibits immediately preceding the signature page to this report.

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[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **<u>Exhibits Index</u>** | **<u>Exhibits Index</u>** | **<u>Exhibits Index</u>** | **<u>Exhibits Index</u>** | **<u>Exhibits Index</u>** | **<u>Exhibits Index</u>** | **<u>Exhibits Index</u>** | **<u>Exhibits Index</u>** | **<u>Exhibits Index</u>** |
|  |  |  |  | Incorporated by Reference | Incorporated by Reference | Incorporated by Reference | Incorporated by Reference | Incorporated by Reference |
| Exhibit Number | Exhibit Description | Filed<br>Herewith | Furnished<br>Herewith | Form | Period<br>Ended | Exhibit | Filing<br>Date | File Number |
| 3.1 | Second [Amended and Restated Certificate of Incorporation of Knife River Corporation](https://www.sec.gov/Archives/edgar/data/1955520/000195552025000043/exhibit31-secondamendedres.htm) |  |  | 8-K |  | 3.1 | 5/28/25 | 1-41642 |
| 3.2 | Second [Amended and Restated Bylaws of Knife River Corporation](https://www.sec.gov/Archives/edgar/data/1955520/000195552025000043/exhibit32-secondamendedres.htm) |  |  | 8-K |  | 3.2 | 5/28/25 | 1-41642 |
| 4.1 | [Third](a2025q2ex41.htm)[Supplemental Indenture, dated as of](a2025q2ex41.htm)[June 12](a2025q2ex41.htm)[, 202](a2025q2ex41.htm)[5](a2025q2ex41.htm)[, by and among the parties that are signatories](a2025q2ex41.htm)[hereto as Guarantors, Knife River Corporation and U.S. Bank Trust Company, National Association](a2025q2ex41.htm) | X |  |  |  |  |  |  |
| 10.1+ | [Knife River Co](a2025q2ex101.htm)[rporation Director Com](a2025q2ex101.htm)[pensation Policy](a2025q2ex101.htm), as amended May 22, 2025 | X |  |  |  |  |  |  |
| 10.2+ | Fourth Amendment to [Knife River Corporation, 401(k) Retirement Plan, as amended](a2025q2ex102.htm)[June 30](a2025q2ex102.htm)[, 2025](a2025q2ex102.htm) | X |  |  |  |  |  |  |
| 10.3+ | [Fifth Amendment to Knife River Corporation, 401(k) Retirement Plan, as amended June 30, 2025](krc401kplan5thamendment-.htm) | X |  |  |  |  |  |  |
| 31.1 | [Certification of Chief Executive Officer filed pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](a2025q2ex311.htm) | X |  |  |  |  |  |  |
| 31.2 | [Certification of Chief Financial Officer filed pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](a2025q2ex312.htm) | X |  |  |  |  |  |  |
| 32 | [Certification of Chief Executive Officer and Chief Financial Officer furnished pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](a2025q2ex32.htm) |  | X |  |  |  |  |  |
| 95 | [Mine Safety Disclosures](a2025q2ex95.htm) | X |  |  |  |  |  |  |
| 101.INS | XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document |  |  |  |  |  |  |  |
| 101.SCH | XBRL Taxonomy Extension Schema Document |  |  |  |  |  |  |  |
| 101.CAL | XBRL Taxonomy Extension Calculation Linkbase Document |  |  |  |  |  |  |  |
| 101.DEF | XBRL Taxonomy Extension Definition Linkbase Document |  |  |  |  |  |  |  |
| 101.LAB | XBRL Taxonomy Extension Label Linkbase Document |  |  |  |  |  |  |  |
| 101.PRE | XBRL Taxonomy Extension Presentation Linkbase Document |  |  |  |  |  |  |  |
| 104 | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) |  |  |  |  |  |  |  |
| + Management contract, compensatory plan or arrangement. | + Management contract, compensatory plan or arrangement. | + Management contract, compensatory plan or arrangement. | + Management contract, compensatory plan or arrangement. | + Management contract, compensatory plan or arrangement. | + Management contract, compensatory plan or arrangement. | + Management contract, compensatory plan or arrangement. | + Management contract, compensatory plan or arrangement. | + Management contract, compensatory plan or arrangement. |

---

------

[Index](#i75870394d58c4cd49c7ab8c1905535b7_7)

**<u>Signatures</u>**

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

---

| | | | |
|:---|:---|:---|:---|
| | | <u>Knife River Corporation</u> | <u>Knife River Corporation</u> |
| DATE: | August 5, 2025 | BY: | /s/ Nathan W. Ring |
| | | | Nathan W. Ring |
| | | | Vice President and Chief Financial Officer |
| | | BY: | /s/ Marney L. Kadrmas |
| | | | Marney L. Kadrmas |
| | | | Vice President and Chief Accounting Officer |

---

## Exhibit 4.1

**Third Supplemental Indenture** 

THIRD SUPPLEMENTAL INDENTURE, dated as of June 12, 2025 (this "<u>Supplemental Indenture</u>"), by and among the parties that are signatories hereto as Guarantors (each, a "<u>Guaranteeing Subsidiary</u>" and together, the "<u>Guaranteeing Subsidiaries</u>"), Knife River Corporation, a Delaware Corporation (the "<u>Issuer</u>"), and U.S. Bank Trust Company, National Association, as trustee under the Indenture referred to below (the "<u>Trustee</u>").

<u>W I T</u> <u>N E S S E T</u> <u>H</u>:

WHEREAS, the Issuer and the Trustee have heretofore executed and delivered an indenture, dated as of April 25, 2023 (as it may be amended or supplemented from time to time in accordance with the terms thereof, the "<u>Indenture</u>"), providing for the issuance of $425,000,000 aggregate principal amount of 7.750% Senior Notes due 2031 (the "<u>Notes</u>");

WHEREAS, the Indenture provides that, under certain circumstances, each Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which such Guaranteeing Subsidiary shall unconditionally guarantee, on a joint and several basis with the other Guaranteeing Subsidiaries and the other Guarantors, all of the Issuer's Obligations under the Notes and the Indenture on the terms and conditions set forth herein and under the Indenture (the "<u>Guarantee</u>"); and

WHEREAS, pursuant to <u>Section 9.01</u> of the Indenture, the Issuer, any Guarantor and the Trustee are authorized to execute and deliver this Supplemental Indenture without the consent of any Holder of the Notes;

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, each Guaranteeing Subsidiary, the Issuer and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders as follows:

ARTICLE I

DEFINITIONS

Section 1.1. Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recitals hereto are used herein as therein defined. The words "herein," "hereof" and "hereby" and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular Section hereof.

ARTICLE II

AGREEMENT TO BE BOUND; GUARANTEE

Section 2.1. *Agreement to be Bound*. Each Guaranteeing Subsidiary hereby becomes a party to the Indenture as a Guarantor and as such will have all of the rights and be subject to all of the obligations and agreements of a Guarantor under the Indenture.

Section 2.2. *Guarantee*. Each Guaranteeing Subsidiary agrees, on a joint and several basis with all other Guaranteeing Subsidiaries, to fully, unconditionally and irrevocably Guarantee to each Holder of the Notes and the Trustee the Guaranteed Obligations pursuant to <u>Article X</u> of the Indenture on a senior basis.

------

ARTICLE III

MISCELLANEOUS

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.1. *Notices*. All notices and other communications to the Issuer and the Guaranteeing Subsidiaries shall be given as provided in the Indenture to such Guaranteeing Subsidiaries, at their addresses set forth below, with a copy to the Issuer as provided in the Indenture for notices to the Issuer.

c/o Knife River Corporation

1150 West Century Avenue

Bismarck, North Dakota 58503

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.2. [*Reserved*].

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.3. *Release of Guarantee*. This Guarantee shall be released in accordance with Section 10.02 of the Indenture.

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.4. *Parties*. Nothing expressed or mentioned herein is intended or shall be construed to give any Person, firm or corporation, other than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of this Supplemental Indenture or the Indenture or any provision herein or therein contained.

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.5. *Governing Law*. This Supplemental Indenture and the rights of the parties hereunder shall be governed by, and construed in accordance with, the laws of the State of New York.

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.6. *Severability*. In case any provision in this Supplemental Indenture shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby and such provision shall be ineffective only to the extent of such invalidity, illegality or unenforceability.

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.7. *Benefits Acknowledged*. Each Guaranteeing Subsidiary's Guarantee is subject to the terms and conditions set forth in the Indenture. Each Guaranteeing Subsidiary acknowledges that it will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and this Supplemental Indenture and that the guarantee and waivers made by it pursuant to this Guarantee are knowingly made in contemplation of such benefits.

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.8. *Ratification of Indenture; Supplemental Indentures Part of Indenture*. Except as expressly amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Notes heretofore or hereafter authenticated and delivered shall be bound hereby.

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.9. *The Trustee*. The Trustee does not make any representation or warranty as to the validity or sufficiency of this Supplemental Indenture or with respect to the recitals contained herein, all of which recitals are made solely by the other parties hereto.

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.10. *Counterparts*. The parties hereto may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. This Supplemental Indenture may be executed in multiple counterparts, which, when taken together, shall constitute one instrument. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile, PDF or other electronic transmission shall constitute effective

------

execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile, PDF or other electronic format shall be deemed to be their original signatures for all purposes.

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.11. *Execution and Delivery*. Each Guaranteeing Subsidiary agrees that its Guarantee shall remain in full force and effect notwithstanding any failure to endorse on each Note a notation of any such Guarantee.

&nbsp;&nbsp;&nbsp;&nbsp;Section 3.12. *Headings*. The headings of the Articles and the Sections in this Supplemental Indenture are for convenience of reference only, are not intended to be considered a part hereof, and shall not be deemed to alter or affect the meaning or interpretation of the terms or provisions hereof.

[Signature Page Follows]

------

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed as of the date first above written.

**KNIFE RIVER CORPORATION,**

as the Issuer

<u>/s/ Nathan W. Ring</u> 

Name: Nathan W. Ring

Title: Vice President and Chief Financial Officer

**STRATA CORPORATION**

**GLACIER RESOURCES, LLC,** 

as a Guarantor

<u>/s/ Brian R. Gray</u>

Name: Brian R. Gray

Title: Chair of the Board and Chief Executive Officer

***[Signature Page to Third Supplemental Indenture]***

------

U.S. Bank Trust Company, National Association,

as Trustee

By: <u>/s/ Wally Jones</u>

Name: Wally Jones

Title: Vice President

***[Signature Page to Third Supplemental Indenture]***

## Exhibit 10.1

**KNIFE RIVER CORPORATION**

**<u>DIRECTOR COMPENSATION POLICY</u>**

This Director Compensation Policy (the "Policy") was adopted by the Board of Directors (the "Board") of Knife River Corporation (the "Company") on May 22, 2025, and is effective as of June 1, 2025.

Each member of the Board who is not an employee of the Company or any of its subsidiaries (a "Director") shall receive compensation made up of annual cash retainers and a restricted stock unit ("RSU") award for shares of the Company's common stock ("Common Stock"), as set forth in this policy.

**<u>Cash Compensation</u>**

---

| | |
|:---|:---|
| | <u>Annual Cash Retainers</u> |
| Base Retainer | $110000 |
| Additional Retainers: |  |
| &nbsp;&nbsp;&nbsp;Non-Executive Chair of the Board | $125000 |
| &nbsp;&nbsp;&nbsp;Chair of Audit Committee | $20000 |
| &nbsp;&nbsp;&nbsp;Chair of Compensation Committee | $20000 |
| &nbsp;&nbsp;&nbsp;Chair of Nominating and Governance Committee | $15000 |

---

Such cash retainers shall be paid in monthly installments.

The Knife River Corporation Deferred Compensation Plan for Directors (the "Plan") permits a Director to defer all or any portion of the annual cash retainers. The amount deferred is recorded in each participant's deferred compensation account and credited with income in the manner prescribed in the Plan.

**<u>Equity Compensation</u>**

Each person, other than the Non-Executive Chair of the Board, who is then a Director of the Company shall automatically receive an RSU award with a value of $150,000, and any person who is then the Non-Executive Chair of the Board shall automatically receive an RSU award with a value of $175,000, immediately after each Company Annual Meeting of Stockholders (each, an "Annual RSU Award"). Any Director who is initially elected or appointed to the Board at any time other than at a Company Annual Meeting of Stockholders will automatically receive on the date of such election or appointment a pro-rated RSU award (the "Initial RSU Award") determined by multiplying the value of the Annual RSU award by a fraction, the numerator of which is the number of expected months (with a partial month counted as a full month) of service on the Board between the date of initial election or appointment and the date of the next Company Annual Meeting of Stockholders and the denominator of which is twelve. Each RSU award granted under the Policy shall be made under the Company's Long-Term Performance-Based Incentive Plan (the "LTIP") and shall be subject to the terms and conditions thereof and the applicable award agreement. The number of shares subject to each RSU award shall be determined by dividing the dollar value of the applicable RSU award by the closing price of the Common Stock on the New York Stock Exchange on the grant date. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

------

Any fractional shares shall be paid in cash. Annual RSU awards and Initial RSU awards shall vest on the day immediately prior to the date of the next Company Annual Meeting of Stockholders occurring after the date of grant, in either case, subject to the Director continuing in service on the Board through such vesting date.

By written election a Director may reduce his or her annual cash retainers and have that amount instead delivered in the form of additional shares of Common Stock under the LTIP. The annual election shall specify the percentage of the annual cash retainers to be applied toward the purchase of additional shares and must be received by the Company by December 14 of the year prior to the year in which the election is to be effective. No election may be changed or revoked for the current year but an election may be changed for a subsequent year. The additional stock payments will be made on the last business day of March, June, September, and December. The stock payment shall be made by providing the Director with the number of whole shares of Common Stock determined (i) if the shares are original issue or treasury stock, by dividing the amount of the applicable stock payment by the closing price of the Common Stock on the New York Stock Exchange on the grant date or (ii) if the shares are purchased on the open market, by dividing the amount of the applicable stock payment by the weighted average price paid to purchase shares for the Director for that stock payment, excluding any related brokerage commissions or other service fees. No fractional shares shall be purchased and cash in lieu of any fractional shares shall be paid to the Director.

**<u>Travel Expense Reimbursement</u>**

All Directors will be reimbursed for reasonable travel expenses incurred while serving as a Director, including spouse's expenses, in connection with attendance at meetings of the Company's Board of Directors and its committees. If the travel expense is related to the reimbursement of airfare, such reimbursement will not exceed full-coach rate. Spousal travel expenses paid by the Company are treated as taxable income to the Director. See the paragraph below entitled "Code Section 409A" for further rules relating to travel expense reimbursements.

**<u>Life Insurance Coverage</u>**

All Directors are protected by a non-contributory group life insurance policy with coverage of $100,000. The coverage begins the day the Director is elected or appointed to the Board of Directors and terminates when the Director ceases to be a Director. A Summary Plan Description (SPD) will be provided to the Director. The beneficiary of the insurance will be the beneficiary recorded on a beneficiary designation provided by the Company. The group life insurance policy is considered taxable compensation under current tax laws. Consequently, the Company will provide each Director annually on Form 1099 the amount of taxable income related to this coverage.

**<u>Code Section 409A</u>**

To the extent any reimbursements or in-kind benefits provided to a Director pursuant to this policy constitute "deferred compensation" under Internal Revenue Code Section 409A, any such reimbursement or in-kind benefit shall be paid in a manner consistent with Treasury Regulation Section 1.409A-3(i)(1)(iv), including the requirements that the amount of reimbursable expenses or in-kind benefits provided during a year may not affect the expenses eligible for reimbursement or in-kind benefits provided in any other year and that any reimbursement be made on or before the last day of the calendar year following the calendar year in which the expense was incurred.

## Exhibit 10.2

**FOURTH AMENDMENT**

**TO**

**KNIFE RIVER CORPORATION**

**401(k) RETIREMENT PLAN**

The Knife River Corporation 401(k) Retirement Plan (the "Plan"), as established effective May 1, 2023, is amended by this Fourth Amendment effective as of June 30, 2025. All terms defined in the Plan shall have the same meanings when used herein. All provisions of the Plan not amended by this Amendment shall remain in full force and effect.

1. Section B-2 of Schedule B is amended to read as follows:

B-2&nbsp;&nbsp;&nbsp;&nbsp;<u>Hawaiian Cement</u>. The Employer shall not make matching contributions on behalf of its collective bargaining unit Employees. (The Employer's non-bargaining unit Employees are eligible for the standard matching contributions.)

2. Section D.4-3 of Schedule D.4 is amended to read as follows:

D.4-3&nbsp;&nbsp;&nbsp;&nbsp;<u>Amount and Allocation</u>. For each Plan Year, Schedule D.4 Participants will be credited with the retirement contributions for each Hour Worked or Compensable Hour as listed below. For this purpose, "Hour Worked" shall mean all hours where the Employee is on HC property performing bargaining unit work, not to include vacation, sick leave, or other non-worked hours for which the Employee may receive Compensation from HC; and "Compensable Hour" shall mean all hours where the Employee is on HC property performing bargaining unit work and vacation, sick leave, and other non-worked hours for which the Employee receives Compensation from HC.

---

| | |
|:---|:---|
| Date | Rate |
| April 16, 2023 – April 15, 2024 | $5.64 per Hour Worked |
| April 16, 2024 – June 29, 2025 | $5.84 per Hour Worked |
| June 30, 2025 – December 31, 2025 | $7.02 per Compensable Hour |
| January 1, 2026 – December 31, 2026 | $7.52 per Compensable Hour |
| January 1, 2027 – December 31, 2027 | $8.02 per Compensable Hour |

---

<br>\*&nbsp;&nbsp;&nbsp;&nbsp;\*&nbsp;&nbsp;&nbsp;&nbsp;\*

The Plan is amended effective as of the dates specifically set forth above and executed by a duly authorized individual on the date set forth below.

**KNIFE RIVER CORPORATION**

Dated: <u>&nbsp;&nbsp;&nbsp;&nbsp;06-26-25&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>&nbsp;&nbsp;&nbsp;&nbsp; By: <u>/s/ Nathan W. Ring&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Nathan W. Ring

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Vice President and Chief Financial Officer

182345911.2

## Exhibit 10.3

![](krc401kplan5thamendment-001.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;-1- 182688815.1 FIFTH AMENDMENT TO KNIFE RIVER CORPORATION 401(k) RETIREMENT PLAN The Knife River Corporation 401(k) Retirement Plan (the "Plan"), as established effective May 1, 2023, is amended by this Fifth Amendment effective as of June 30, 2025. All terms defined in the Plan shall have the same meanings when used herein. All provisions of the Plan not amended by this Amendment shall remain in full force and effect. 1. The definition of "Compensable Hour" under Section D.4-3 of Schedule D.4 is amended to read as follows: "Compensable Hour" shall mean all hours for which the Employee receives wages directly from HC through its payroll system. This does not include workers' compensation, temporary disability insurance, or long-term disability. \* \* \* The Plan is amended effective as of the date specifically set forth above and executed by a duly authorized individual on the date set forth below. KNIFE RIVER CORPORATION Dated: 7/15/2025 \| 2:12 PM PDT By: /s/ Nathan W. Ring Nathan W. Ring Vice President and Chief Financial Officer

------

## Exhibit 31.1

CERTIFICATION

I, Brian R. Gray, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.I have reviewed this quarterly report on Form 10-Q of Knife River Corporation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: August 5, 2025

<u>/s/ Brian R. Gray</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

Brian R. Gray

President and Chief Executive Officer

## Exhibit 31.2

CERTIFICATION

I, Nathan W. Ring, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.I have reviewed this quarterly report on Form 10-Q of Knife River Corporation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: August 5, 2025

<u>/s/ Nathan W. Ring</u>

Nathan W. Ring

Vice President and Chief Financial Officer

## Ex-32

**CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906**

**OF THE SARBANES-OXLEY ACT OF 2002**

&nbsp;&nbsp;&nbsp;&nbsp;Each of the undersigned, Brian R. Gray, the President and Chief Executive Officer, and Nathan W. Ring, the Vice President and Chief Financial Officer of Knife River Corporation (the "Company"), DOES HEREBY CERTIFY that:

&nbsp;&nbsp;&nbsp;&nbsp;1. The Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2025 (the "Report"), fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934; and

&nbsp;&nbsp;&nbsp;&nbsp;2. Information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

&nbsp;&nbsp;&nbsp;&nbsp;IN WITNESS WHERE OF, each of the undersigned has executed this statement this 5th day of August, 2025.

<u>/s/ Brian R. Gray</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

Brian R. Gray

President and Chief Executive Officer

<u>/s/ Nathan W. Ring</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

Nathan W. Ring

Vice President and Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to Knife River Corporation and will be retained by Knife River Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

## Ex-95

 **KNIFE RIVER CORPORATION**

**MINE SAFETY INFORMATION**

The Dodd-Frank Wall Street Reform and Consumer Protection Act (Dodd-Frank Act) requires issuers to include in periodic reports filed with the SEC certain information relating to citations or orders for violations of standards under the Federal Mine Safety and Health Act of 1977 (Mine Act), as amended by the Mine Improvement and New Emergency Response Act of 2006 (Mine Safety Act). The Dodd-Frank Act requires reporting of the following types of citations or orders:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.&nbsp;&nbsp;&nbsp;&nbsp;Citations issued under Section 104 of the Mine Safety Act for violations that could significantly and substantially contribute to the cause and effect of a coal or other mine safety or health hazard.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.&nbsp;&nbsp;&nbsp;&nbsp;Orders issued under Section 104(b) of the Mine Safety Act. Orders are issued under this section when citations issued under Section 104 have not been totally abated within the time period allowed by the citation or subsequent extensions.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.&nbsp;&nbsp;&nbsp;&nbsp;Citations or orders issued under Section 104(d) of the Mine Safety Act. Citations or orders are issued under this section when it has been determined that the violation is caused by an unwarrantable failure of the mine operator to comply with the standards. An unwarrantable failure occurs when the mine operator is deemed to have engaged in aggravated conduct constituting more than ordinary negligence.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.&nbsp;&nbsp;&nbsp;&nbsp;Citations issued under Section 110(b)(2) of the Mine Safety Act for flagrant violations. Violations are considered flagrant for repeat or reckless failures to make reasonable efforts to eliminate a known violation of a mandatory health and safety standard that substantially and proximately caused, or reasonably could have been expected to cause, death or serious bodily injury.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.&nbsp;&nbsp;&nbsp;&nbsp;Imminent danger orders issued under Section 107(a) of the Mine Safety Act. An imminent danger is defined as the existence of any condition or practice in a coal or other mine which could reasonably be expected to cause death or serious physical harm before such condition or practice can be abated.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.&nbsp;&nbsp;&nbsp;&nbsp;Notice received under Section 104(e) of the Mine Safety Act of a pattern of violations or the potential to have such a pattern of violations that could significantly and substantially contribute to the cause and effect of mine health and safety standards.

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During the three months ended June 30, 2025, none of the Company's operating subsidiaries received citations or orders under the following sections of the Mine Safety Act: 104(b), 104(d), 110(b)(2), 107(a) or 104(e). The Company not have any mining-related fatalities during this period.

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **MSHA Identification Number/Contractor ID** | **Section 104 S&S Citations (#)** | **Total Dollar Value of MSHA Assessments Proposed ($)** | **Legal Actions Pending as of Last Day of Period (#)** | **Legal Actions Initiated During Period (#)** | **Legal Actions Resolved During Period (#)** |
| 04-01698 | 1 | $1271 | 1 | 1 |  |
| 04-05459 | 1 |  |  |  | 1 |
| 10-02088 |  | 151 |  |  |  |
| 10-02170 |  | 151 |  |  |  |
| 21-03107 | 1 |  |  |  |  |
| 21-03133 |  | 151 |  |  |  |
| 21-03348 | 3 |  |  |  |  |
| 21-03810 |  | 302 |  |  |  |
| 32-00151 | 1 | 209 |  |  |  |
| 32-00776 | 1 |  |  |  |  |
| 32-00777 |  | 151 |  |  |  |
| 32-00950 | 3 |  |  |  |  |
| 35-03595 |  | 151 |  |  |  |
| 35-03605 |  | 177 |  |  |  |
| 35-03639 | 1 | 944 |  |  |  |
| 35-03667 |  | 453 |  |  |  |
| 39-00008 | 1 | 1251 |  |  |  |
| 41-03931 |  | 151 |  |  |  |
| 41-05492 | 2 |  |  |  |  |
| 51-00036 |  | 453 |  |  |  |
| 51-00171 |  | 302 |  |  |  |
| 51-00192 |  | 481 |  |  |  |
| 51-00195 |  | 453 |  |  |  |
| 51-00242 |  | 453 |  |  |  |
| 51-00245 |  | 151 |  |  |  |
|  | 15 | $7806 | 1 | 1 | 1 |

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Legal actions pending before the Federal Mine Safety and Health Review Commission (the Commission) may involve, among other questions, challenges by operators to citations, orders and penalties they have received from the Federal Mine Safety and Health Administration (MSHA) or complaints of discrimination by miners under section 105 of the Mine Act. The following is a brief description of the types of legal actions that may be brought before the Commission.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Contests of Citations and Orders - A contest proceeding may be filed with the Commission by operators, miners or miners' representatives to challenge the issuance of a citation or order issued by MSHA.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Contests of Proposed Penalties (Petitions for Assessment of Penalties) - A contest of a proposed penalty is an administrative proceeding before the Commission challenging a civil penalty that MSHA has proposed for the alleged violation contained in a citation or order.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Complaints for Compensation - A complaint for compensation may be filed with the Commission by miners entitled to compensation when a mine is closed by certain withdrawal orders issued by MSHA. The purpose of the proceeding is to determine the amount of compensation, if any, due miners idled by the orders.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Complaints of Discharge, Discrimination or Interference - A discrimination proceeding is a case that involves a miner's allegation that he or she has suffered a wrong by the operator because he or she engaged in some type of activity protected under the Mine Act, such as making a safety complaint.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Applications for Temporary Relief - Applications for temporary relief from any modification or termination of any order or from any order issued under section 104 of the Mine Act.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Appeals of Judges' Decisions or Orders to the Commission - A filing with the Commission for discretionary review of a judge's decision or order by a person who has been adversely affected or aggrieved by such decision or order.

The following table reflects the types of legal actions pending before the Commission as of June 30, 2025:

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **MSHA Identification Number** | **Contests of Citations and Orders** | **Contests of Proposed Penalties** | **Complaints for Compensation** | **Complaints of Discharge, Discrimination or Interference** | **Applications for Temporary Relief** | **Appeals of Judges' Decisions or Orders to the Commission** |
| 04-01698 | 1 |  |  |  |  |  |

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