10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 FORM 10-Q

(Mark One)

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

For the quarterly period ended March 30, 2024

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 001-36285

RAYONIER ADVANCED MATERIALS INC.

Incorporated in the State of Delaware

I.R.S. Employer Identification No.: 46-4559529

Principal Executive Office:

1301 RIVERPLACE BOULEVARD, SUITE 2300

JACKSONVILLE, FL 32207

Telephone Number: (904) 357-4600

Securities registered pursuant to Section 12(b) of the Act:
Title of each class	Trading Symbol	Name of exchange on which registered
Common stock, par value $0.01 per share	RYAM	New York Stock Exchange
Securities to be registered pursuant to Section 12(g) of the Act: None

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 x       No o

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 x       No o

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	o	Accelerated filer	x
Non-accelerated filer	o	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. o

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

The registrant had 65,576,090 shares of common stock outstanding as of May 6, 2024.

Table of Contents

	Page
Part I. Financial Information
Item 1. Financial Statements (Unaudited)
Consolidated Statements of Operations	1
Consolidated Statements of Comprehensive Income (Loss)	2
Consolidated Balance Sheets	3
Consolidated Statements of Stockholders’ Equity	4
Consolidated Statements of Cash Flows	5
Notes to Consolidated Financial Statements	6
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3. Quantitative and Qualitative Disclosures about Market Risk	26
Item 4. Controls and Procedures	26
Part II. Other Information
Item 1. Legal Proceedings	28
Item 1A. Risk Factors	28
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	28
Item 5. Other Information	28
Item 6. Exhibits	29
Signature	30

Glossary

The following terms and abbreviations appearing in the text of this report have the meanings indicated below.

2023 Form 10-K	RYAM Annual Report on Form 10-K for the year ended December 31, 2023
2026 Notes	$500 million original aggregate principal amount of 7.625 percent senior secured notes issued December 2020, due January 2026
2027 Term Loan	$250 million original aggregate principal amount of variable rate term loan entered into July 2023, maturing July 2027
2G	Second generation
ABL Credit Facility	5-year senior secured asset-based revolving credit facility due December 2025
ASU	Accounting Standards Update
AOCI	Accumulated other comprehensive income (loss)
CAD	Canadian dollar
CEWS	Canada Emergency Wage Subsidy
DTA	Deferred tax asset
EBITDA	Earnings before interest, taxes, depreciation and amortization
ERP	Enterprise Resource Planning
Exchange Act	Securities Exchange Act of 1934, as amended
Financial Statements	Consolidated financial statements included in Part I Item 1 of this Quarterly Report on Form 10-Q
GAAP	United States generally accepted accounting principles
GRAS	Generally Recognized As Safe
LTF	LignoTech Florida LLC
MT	Metric ton
OPEB	Other post-employment benefits
ROU	Right-of-use
RYAM, the Company, our, we, us	Rayonier Advanced Materials Inc. and its consolidated subsidiaries
SEC	United States Securities and Exchange Commission
SG&A	Selling, general and administrative expense
SOFR	Secured Overnight Financing Rate
TSR	Total shareholder return
U.S.	United States of America
USD	United States of America dollar
USDOC	United States Department of Commerce

Part I. Financial Information

Item 1. Financial Statements

Rayonier Advanced Materials Inc.

Consolidated Statements of Operations

(Unaudited)

(in thousands, except per share amounts)

	Three Months Ended
	March 30, 2024		April 1, 2023
Net sales	$	387,656	$	466,761
Cost of sales	(350,895)		(429,321)
Gross margin	36,761		37,440
Selling, general and administrative expense	(21,075)		(19,495)
Foreign exchange gain (loss)	2,911		(673)
Other operating expense, net	(1,522)		(678)
Operating income	17,075		16,594
Interest expense	(20,855)		(15,496)
Components of pension and OPEB, excluding service costs (Note 12)	920		(1,734)
Other income, net	1,270		306
Loss before income taxes	(1,590)		(330)
Income tax benefit (Note 13)	472		2,586
Equity in loss of equity method investment	(452)		(649)
Net income (loss)	$	(1,570)	$	1,607
Basic and Diluted earnings per common share (Note 10)
Net income (loss) per common share	$	(0.02)	$	0.02

See Notes to Consolidated Financial Statements.

1

Rayonier Advanced Materials Inc.

Consolidated Statements of Comprehensive Income (Loss)

(Unaudited)

(in thousands)

	Three Months Ended
	March 30, 2024		April 1, 2023
Net income (loss)	$	(1,570)	$	1,607
Other comprehensive income (loss), net of tax (Note 9)
Foreign currency translation adjustment	(4,481)		4,212
Unrealized gain on derivative instruments	41		55
Net loss on employee benefit plans	(14)		(127)
Total other comprehensive income (loss)	(4,454)		4,140
Comprehensive income (loss)	$	(6,024)	$	5,747

See Notes to Consolidated Financial Statements.

2

Rayonier Advanced Materials Inc.

Consolidated Balance Sheets

(Unaudited)

(in thousands, except share and par value amounts)

	March 30, 2024		December 31, 2023
Assets
Current assets
Cash and cash equivalents	$	54,608	$	75,768
Accounts receivable, net (Note 2)	183,049		197,457
Inventory (Note 3)	228,050		207,474
Income tax receivable	18,698		19,455
Prepaid and other current assets	61,152		74,904
Total current assets	545,557		575,058
Property, plant and equipment (net of accumulated depreciation of $1,824,097 and $1,797,529, respectively)	1,057,893		1,075,105
Deferred tax assets	344,631		345,181
Intangible assets, net	15,661		17,414
Other assets	171,304		169,942
Total assets	$	2,135,046	$	2,182,700
Liabilities and Stockholders’ Equity
Current liabilities
Accounts payable	$	157,697	$	186,226
Accrued and other current liabilities (Note 5)	141,908		154,488
Debt due within one year (Note 6)	23,056		25,283
Current environmental liabilities (Note 7)	9,829		9,833
Total current liabilities	332,490		375,830
Long-term debt (Note 6)	755,626		752,174
Non-current environmental liabilities (Note 7)	160,211		160,458
Pension and other postretirement benefits (Note 12)	99,207		101,493
Deferred tax liabilities	14,367		15,190
Other liabilities	31,395		31,108
Commitments and contingencies (Note 15)
Stockholders’ Equity
Common stock: 140,000,000 shares authorized at $0.01 par value, 65,554,837 and 65,393,014 issued and outstanding, respectively	655		654
Additional paid-in capital	420,448		419,122
Retained earnings	371,018		372,588
Accumulated other comprehensive loss (Note 9)	(50,371)		(45,917)
Total stockholders’ equity	741,750		746,447
Total liabilities and stockholders’ equity	$	2,135,046	$	2,182,700

See Notes to Consolidated Financial Statements.

3

Rayonier Advanced Materials Inc.

Consolidated Statements of Stockholders’ Equity

(Unaudited)

(in thousands, except share data)

	Common Stock			Additional Paid in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Total Stockholders’ Equity
	Shares	Par Value
Three months ended March 30, 2024
Balance at December 31, 2023	65,393,014	$	654	$	419,122	$	372,588	$	(45,917)	$	746,447
Net loss	—	—		—		(1,570)		—		(1,570)
Other comprehensive loss, net of tax	—	—		—		—		(4,454)		(4,454)
Issuance of common stock under incentive stock plans	243,533	2		(2)		—		—		—
Stock-based compensation	—	—		1,780		—		—		1,780
Repurchase of common stock(a)	(81,710)	(1)		(452)		—		—		(453)
Balance at March 30, 2024	65,554,837	$	655	$	420,448	$	371,018	$	(50,371)	$	741,750
Three months ended April 1, 2023
Balance at December 31, 2022	64,020,761	$	640	$	418,048	$	474,423	$	(63,798)	$	829,313
Net income	—	—		—		1,607		—		1,607
Other comprehensive income, net of tax	—	—		—		—		4,140		4,140
Issuance of common stock under incentive stock plans	1,700,494	17		(17)		—		—		—
Stock-based compensation	—	—		1,478		—		—		1,478
Repurchase of common stock(a)	(614,907)	(6)		(5,103)		—		—		(5,109)
Balance at April 1, 2023	65,106,348	$	651	$	414,406	$	476,030	$	(59,658)	$	831,429

(a)Repurchased to satisfy tax withholding requirements related to the issuance of stock under the Company’s incentive stock plans.

See Notes to Consolidated Financial Statements.

4

Rayonier Advanced Materials Inc.

Consolidated Statements of Cash Flows

(Unaudited)

(in thousands)

	Three Months Ended
	March 30, 2024		April 1, 2023
Operating activities
Net income (loss)	$	(1,570)	$	1,607
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	33,283		35,257
Stock-based compensation expense	1,780		1,478
Net periodic benefit cost of pension and other postretirement plans	755		921
Unrealized (gain) loss on foreign currency	(1,899)		267
Other	3,062		2,152
Changes in operating assets and liabilities:
Accounts receivable	12,792		9,242
Inventories	(21,231)		28,600
Accounts payable	(14,320)		(6,971)
Accrued liabilities	(12,476)		(26,406)
Other	13,353		9,929
Contributions to pension and other postretirement plans	(2,264)		(4,687)
Cash provided by operating activities	11,265		51,389
Investing activities
Capital expenditures, net of proceeds	(32,561)		(21,180)
Investment in equity method investment	—		(168)
Cash used in investing activities	(32,561)		(21,348)
Financing activities
Borrowings of long-term debt	132,825		536
Repayments of long-term debt	(127,861)		(8,369)
Short-term financing, net	(1,709)		(647)
Debt issuance costs	(1,875)		—
Repurchase of common stock	(453)		(5,109)
Cash provided by (used in) financing activities	927		(13,589)
Net increase (decrease) in cash and cash equivalents	(20,369)		16,452
Net effect of foreign exchange on cash and cash equivalents	(791)		1,147
Balance, beginning of period	75,768		151,803
Balance, end of period	$	54,608	$	169,402
Supplemental cash flow information:
Interest paid	$	(34,036)	$	(18,841)
Income taxes refunded (paid), net	1,587		(3,029)
Capital assets purchased on account	23,495		30,041

See Notes to Consolidated Financial Statements.

5

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

1. Basis of Presentation

RYAM is a global leader of specialty cellulose materials with a broad offering of high purity cellulose specialties, a natural polymer used in the production of a variety of specialty chemical products, including liquid crystal displays, filters, textiles and performance additives for pharmaceutical, food and other industrial applications. The Company’s specialized assets are also used to produce biofuels, bioelectricity and other biomaterials such as bioethanol and tall oils. The Company also produces a unique, lightweight multi-ply paperboard product, which is used for production in the commercial printing, lottery ticket and high-end packaging sectors, and a bulky, high-yield pulp product that is used by paperboard producers, as well as in traditional printing, writing and specialty paper manufacturing.

The unaudited consolidated financial statements and notes thereto of the Company have been prepared in accordance with GAAP for interim financial information and in accordance with the rules and regulations of the SEC. In the opinion of management, these consolidated financial statements and notes reflect all adjustments, including all normal recurring adjustments, necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented. These statements and notes should be read in conjunction with the consolidated financial statements and supplementary data included in the Company’s 2023 Form 10-K.

Recent Accounting Developments

Change in Accounting Policy

On January 1, 2024, the Company changed the method of valuation of its finished goods, work-in-process and raw materials inventories from first-in first-out to average cost. The Company believes the average cost method is preferable because it provides better matching of revenue and expense trends and is a better reflection of periodic income from operations. This change was not retrospectively applied to prior periods presented, as the overall effect of the change is not deemed material to the Company’s consolidated financial statements.

Accounting Pronouncements

There have been no new or recently adopted accounting pronouncements impacting the Company’s consolidated interim financial statements. The Company continues to evaluate the impacts of ASU 2023-05 “Business Combinations—Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement,” ASU 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures” and ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” as previously disclosed in its 2023 Form 10-K.

Subsequent Events

Indefinite Suspension of Operations of Temiscaming High Purity Cellulose Plant

On April 29, 2024, the Company announced that it will suspend operations at its Temiscaming High Purity Cellulose plant, effective July 2, 2024, for an indefinite period. The decision does not affect the Temiscaming paperboard and high-yield pulp plants that support the Company’s High-Yield Pulp and Paperboard operating segments, which will continue to operate at full capacity while remaining part of an ongoing, previously announced, sales process. The effective date was determined as the latest possible date allowing enough lead time for the Company to properly execute the shutdown prior to the arrival of winter in the region. The High Purity Cellulose plant will be idled in a safe and environmentally sound manner. The Company will assess on an annual basis the possibility of restarting the Temiscaming High Purity Cellulose plant.

The indefinite suspension of operations will result in approximately 275 layoffs. In connection with the suspension of operations, the Company expects to incur one-time operating charges in 2024 of approximately $30 million, including mothball, severance and other employee costs. Further, the Company also expects to incur non-cash charges in 2024 related to impairments, the amounts of which will be assessed. While most 2024 cash costs associated with the suspension of operations will be incurred and paid in the third and fourth quarters, severance and other restructuring costs are expected to be paid over a period of time.

From 2021 through 2023, average maintenance capital expenditures for the Temiscaming High Purity Cellulose plant was $15 million. In 2023, the High Purity Cellulose plant incurred an operating loss of $60 million, including a non-cash asset impairment of $25 million. Working capital for the High Purity Cellulose plant was $31 million at the end of 2023.

6

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

Sale of Softwood Lumber Duty Rights

In August 2021, the Company completed the sale of its lumber and newsprint facilities. As part of the sale, the Company retained all refund rights, including interest, to softwood lumber duties paid by the Company from 2017 through 2021, and has accumulated a $40 million receivable as a result of USDOC administrative reviews. On May 6, 2024, the Company announced the sale of these rights, including all accrued interest, for $39 million, with the opportunity for additional sale proceeds in the future contingent upon the timing and terms of the ultimate outcome of the trade dispute between the USDOC and Canada.

2. Accounts Receivable, Net

Accounts receivable, net included the following:

	March 30, 2024		December 31, 2023
Accounts receivable, trade	$	152,938	$	166,137
Accounts receivable, other(a)	30,847		31,973
Allowance for credit loss	(736)		(653)
Accounts receivable, net	$	183,049	$	197,457

(a)Consists primarily of value-added/consumption taxes, grants receivable and accrued billings due from government agencies.

3. Inventory

Inventory included the following:

	March 30, 2024		December 31, 2023
Finished goods	$	170,222	$	147,930
Work-in-progress	5,157		6,987
Raw materials	47,014		46,120
Manufacturing and maintenance supplies	5,657		6,437
Inventory	$	228,050	$	207,474

4. Leases

The Company’s operating and finance leases are primarily for corporate offices, warehouse space, rail cars and equipment. As of March 30, 2024, the Company’s leases have remaining lease terms of less than one year to 12.6 years with standard renewal and termination options available at the Company’s discretion. Certain equipment leases have purchase options at the end of the term of the lease, which are not included in the ROU assets, as it is not reasonably certain that the Company will exercise such options. The Company’s lease agreements do not contain any material residual value guarantees or restrictive covenants. The Company uses its incremental borrowing rate in determining the present value of lease payments unless the lease provides an implicit or explicit interest rate.

Financial and other information related to the Company’s operating and finance leases follow:

	Three Months Ended
	March 30, 2024		April 1, 2023
Operating lease cost	$	1,710	$	1,694
Finance lease cost
Amortization of ROU assets	106		99
Interest	23		30
Total lease cost	$	1,839	$	1,823

7

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

	Balance Sheet Location	March 30, 2024		December 31, 2023
Operating leases
ROU assets	Other assets	$	17,271	$	17,475
Lease liabilities, current	Accrued and other current liabilities	4,793		4,499
Lease liabilities, non-current	Other liabilities	14,161		14,666
Finance leases
ROU assets	Property, plant and equipment, net	986		1,078
Lease liabilities	Long-term debt	1,250		1,355

	Three Months Ended
	March 30, 2024		April 1, 2023
Operating cash flows - cash paid for amounts included in the measurement of operating lease liabilities	$	1,675	$	1,581
Operating lease ROU assets obtained in exchange for lease liabilities	1,194		(80)

Finance lease cash flows were immaterial during each of the three months ended March 30, 2024 and April 1, 2023.

	March 30, 2024		December 31, 2023
Operating leases
Weighted average remaining lease term (in years)	5.3		5.5
Weighted average discount rate	8.3	%	8.3	%
Finance leases
Weighted average remaining lease term (in years)	2.6		2.8
Weighted average discount rate	7.0	%	7.0	%

Operating lease maturities as of March 30, 2024 were as follows:

Remainder of 2024	$	4,619
2025	5,509
2026	4,397
2027	3,305
2028	2,064
Thereafter	4,094
Total minimum lease payments	23,988
Less: imputed interest	(5,034)
Present value of future minimum lease payments	$	18,954

8

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

5. Accrued and Other Current Liabilities

Accrued and other current liabilities included the following:

	March 30, 2024		December 31, 2023
Accrued customer incentives	$	33,792	$	30,036
Accrued payroll and benefits	16,778		13,552
Accrued interest	16,491		32,256
Accrued income taxes	4,595		4,605
Accrued property and other taxes	4,596		2,547
Deferred revenue(a)	23,781		24,061
Other current liabilities(b)	41,875		47,431
Accrued and other current liabilities	$	141,908	$	154,488

(a)Included at March 30, 2024 and December 31, 2023 was CAD $25 million (USD $18 million and $19 million, respectively) associated with funds received in 2021 for CEWS. All CEWS claims are subject to mandatory audit. The Company will recognize amounts from these claims in income at the time there is sufficient evidence that it will not be required to repay such amounts.

(b)Included at March 30, 2024 and December 31, 2023 were $14 million and $13 million, respectively, of energy-related payables associated with Tartas facility operations.

6. Debt and Finance Leases

Debt and finance leases included the following:

	March 30, 2024		December 31, 2023
ABL Credit Facility due December 2025: $131 million net availability, bearing interest of 7.42% (5.42% adjusted SOFR plus 2.00% margin) at March 30, 2024	$	—	$	—
Term Loan due July 2027: bearing interest of 13.30% (5.30% three-month Term SOFR plus 8.00% margin) at March 30, 2024	248,750		250,000
7.625% Senior Secured Notes due January 2026	464,640		464,640
5.50% CAD-based term loan due April 2028	28,074		30,479
Other loans(a)	51,783		44,754
Short-term factoring facility	3,493		5,292
Finance lease obligations	1,250		1,355
Total principal payments due	797,990		796,520
Less: unamortized premium, discount and issuance costs	(19,308)		(19,063)
Total debt	778,682		777,457
Less: debt due within one year	(23,056)		(25,283)
Long-term debt	$	755,626	$	752,174

(a)Consist of loans for energy projects and other loans intended for use in biomaterials projects in France.

Term Loan

In January 2024, the Company amended the 2027 Term Loan to increase the maximum consolidated secured net leverage ratio that it must maintain in the fourth quarter of 2023 and through its 2024 fiscal year (see below). In addition, should the Company exceed the 4.50 to 1.00 maximum ratio established by the original agreement in any of these quarters, it will incur a fee of 0.25% of the principal balance outstanding at the end of the applicable quarter. The Company incurred total fees of $3 million related to this amendment, including $1 million in legal and advisory fees recorded to “selling, general and administrative expense” in the consolidated statements of operations in the fourth quarter of 2023, and $2 million in lender fees recorded as deferred financing costs in the first quarter of 2024 that will be amortized to “interest expense” over the remaining term of the loan.

9

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

The Company is required to maintain various financial covenants, including a consolidated secured net leverage ratio, based on covenant EBITDA, as follows:

•5.25 to 1.00 for the fourth quarter of 2023 through the second quarter of 2024;

•5.00 to 1.00 for the third fiscal quarter of 2024;

•4.75 to 1.00 for the fourth fiscal quarter of 2024; and

•4.50 to 1.00 for each fiscal quarter thereafter.

At March 30, 2024, the Company was in compliance with all covenants under its debt agreements.

As of March 30, 2024, the Company’s debt principal payments, excluding finance lease obligations, were due as follows:

Remainder of 2024	$	18,713
2025	19,003
2026	483,691
2027	245,664
2028	9,967
Thereafter	19,702
Total debt principal payments	$	796,740

7. Environmental Liabilities

The Company’s environmental liabilities balance changed as follows during the three months ended March 30, 2024:

Balance at December 31, 2023	$	170,291
Increase in liabilities	653
Payments	(796)
Foreign currency adjustments	(108)
Balance at March 30, 2024	170,040
Less: current portion	(9,829)
Non-current environmental liabilities	$	160,211

In addition to these estimated liabilities, the Company is subject to the risk of reasonably possible additional liabilities in excess of the established liabilities due to potential changes in circumstances and future events, including, without limitation, changes to current laws and regulations; changes in governmental agency personnel, direction, philosophy or enforcement policies; developments in remediation technologies; increases in the cost of remediation, operation, maintenance and monitoring of its environmental liability sites; changes in the volume, nature or extent of contamination to be remediated or monitoring to be undertaken; the outcome of negotiations with governmental agencies or non-governmental parties; and changes in accounting rules or interpretations. Based on information available as of March 30, 2024, the Company estimates this exposure could range up to approximately $85 million, although no assurances can be given that this amount will not be exceeded given the factors described above. These potential additional costs are attributable to several sites and other applicable liabilities. This estimate excludes liabilities that would otherwise be considered reasonably possible but for the fact that they are not currently estimable, primarily due to the factors discussed above.

Subject to the previous paragraph, the Company believes its estimates of liabilities are sufficient for probable costs expected to be incurred over the next 20 years with respect to its environmental liabilities. However, no assurance is given that these estimates will be sufficient for the reasons described above and additional liabilities could have a material adverse effect on the Company’s financial position, results of operations and cash flows.

8. Fair Value Measurements

The carrying amounts of the Company’s cash, receivables and payables approximate fair value due to the short-term nature of those instruments. The carrying amount of borrowings outstanding under the ABL Credit Facility, 2027 Term Loan and short-term factoring facility approximate fair value due to their variable interest rates.

10

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

The fair value of the Company’s fixed rate debt is estimated using quoted market prices for debt with similar terms and maturities, which are Level 2 inputs, and was as follows:

	March 30, 2024		December 31, 2023
Carrying amount of fixed rate debt(a)	$	541,455	$	536,393
Fair value of fixed rate debt	501,587		497,563

(a)Excludes finance lease obligations.

9. Accumulated Other Comprehensive Loss

	Three Months Ended
	March 30, 2024		April 1, 2023
Unrecognized components of employee benefit plans, net of tax
Balance, beginning of period	$	(33,537)	$	(43,694)
Reclassifications to earnings(a)
Amortization of gain	(196)		(176)
Amortization of prior service cost	181		13
Income tax on reclassifications	1		36
Net comprehensive loss on employee benefit plans, net of tax	(14)		(127)
Balance, end of period	(33,551)		(43,821)
Unrealized loss on derivative instruments, net of tax
Balance, beginning of period	(373)		(567)
Reclassifications to earnings - foreign currency exchange contracts(b)	47		63
Income tax on reclassifications	(6)		(8)
Net comprehensive gain on derivative instruments, net of tax	41		55
Balance, end of period	(332)		(512)
Foreign currency translation
Balance, beginning of period	(12,007)		(19,537)
Foreign currency translation adjustment, net of tax(c)	(4,481)		4,212
Balance, end of period	(16,488)		(15,325)
Accumulated other comprehensive loss, end of period	$	(50,371)	$	(59,658)

(a)The AOCI components for defined benefit pension and post-retirement plans are included in the computation of net periodic benefit cost. See Note 12—Employee Benefit Plans for further information.

(b)Reclassifications of foreign currency exchange contracts are recorded in “cost of sales,” “other operating expense, net” or “other income, net,” as appropriate.

(c)Foreign currency translation is net of tax effects of $0 for all periods presented, as the French operations are taxed on the foreign functional currency, not the translated reporting currency.

11

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

10. Earnings Per Common Share

The following table provides the inputs to the calculations of basic and diluted earnings per common share (share amounts not in thousands):

	Three Months Ended
	March 30, 2024		April 1, 2023
Net income (loss) available for common stockholders	$	(1,570)	$	1,607
Shares used for determining basic earnings per share of common stock	65,447,454		64,504,200
Dilutive effect of:
Stock options	—		531
Performance and restricted stock	—		2,091,922
Shares used for determining diluted earnings per share of common stock	65,447,454		66,596,653

Anti-dilutive instruments excluded from the computation of diluted earnings per share included (not in thousands):

	Three Months Ended
	March 30, 2024	April 1, 2023
Stock options	—	162,171
Performance and restricted stock	3,635,379	96,769
Total anti-dilutive instruments	3,635,379	258,940

11. Incentive Stock Plans

Stock-based compensation expense was as follows:

	Three Months Ended
	March 30, 2024		April 1, 2023
Stock-based compensation expense	$	1,780	$	1,478

The Company made new grants of restricted stock units, performance-based stock units and performance-based cash awards during the first quarter of 2024. The 2024 restricted stock unit awards cliff vest after three years. The 2024 performance-based awards cliff vest after three years and are based equally on TSR relative to peers and three-year cumulative adjusted EBITDA. Participants can earn between 0 percent and 200 percent of the target award for each of the TSR and adjusted EBITDA metrics. Performance below threshold for each metric would result in zero payout. The performance-based cash award is paid in cash and is classified as a liability and remeasured to fair value at the end of each reporting period until settlement.

In March 2024, the performance-based awards granted in 2021 vested without meeting the performance thresholds, resulting in no stock units or cash being awarded.

The following table summarizes the 2024 activity of the Company’s incentive stock awards:

	Stock Options			Restricted Stock Units			Performance-Based Stock Units
	Options	Weighted Average Exercise Price		Awards	Weighted Average Grant Date Fair Value		Awards	Weighted Average Grant Date Fair Value
Outstanding at December 31, 2023	46,798	$	37.77	1,886,694	$	6.01	1,370,601	$	7.83
Granted	—	—		389,799	3.79		568,812	4.50
Forfeited	—	—		(41,348)	5.17		(293,790)	11.41
Exercised or settled	—	—		(245,389)	10.52		—	—
Expired or cancelled	(46,798)	29.52		—	—		—	—
Outstanding at March 30, 2024	—	$	—	1,989,756	$	5.04	1,645,623	$	6.12

12

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

12. Employee Benefit Plans

Defined Benefit Plans

The Company has defined benefit pension and other long-term and postretirement benefit plans covering certain union and non-union employees, primarily in the U.S. and Canada. The defined benefit pension plans are closed to new participants. The liabilities for these plans are calculated using actuarial estimates and management assumptions. These estimates are based on historical information and certain assumptions about future events.

During the three months ended April 1, 2023, the Company recorded a $2 million loss related to the final asset surplus distribution to the plan participants of certain wound-up Canadian pension plans. The settlement was recognized in “components of pension and OPEB, excluding service costs” in the Company’s consolidated statements of operations.

The following table presents the components of net periodic benefit costs of these plans:

	Pension				Postretirement
	Three Months Ended				Three Months Ended
	March 30, 2024		April 1, 2023		March 30, 2024		April 1, 2023
Service cost	$	1,537	$	1,217	$	138	$	287
Interest cost	6,923		7,145		248		357
Expected return on plan assets	(8,076)		(7,922)		—		—
Amortization of prior service cost (credit)	205		37		(24)		(24)
Amortization of gain	(11)		(122)		(185)		(54)
Pension settlement loss	—		2,317		—		—
Net periodic benefit cost	$	578	$	2,672	$	177	$	566

Service cost is included in “cost of sales” or “selling, general and administrative expense” in the consolidated statements of operations, as appropriate. Interest cost, expected return on plan assets, amortization of prior service cost (credit) and amortization of gain are included in “components of pension and OPEB, excluding service costs” in the consolidated statements of operations.

13. Income Taxes

Effective Tax Rate

The Company’s effective tax rates were as follows:

	Three Months Ended
	March 30, 2024			April 1, 2023
Loss before income taxes	$	(1,590)		$	(330)
Effective tax rate	29.7		%	783.6		%

The effective tax rate for the three months ended March 30, 2024 differed from the federal statutory rate of 21 percent primarily due to the release of certain tax reserves, partially offset by return-to-accrual adjustments, excess deficit on vested stock compensation and changes in the valuation allowance on disallowed interest deductions.

The effective tax rate for the three months ended April 1, 2023 was not meaningful due to near break-even pretax income for the period, which results in any discrete tax adjustments significantly impacting the rate. The largest adjustments creating a difference between the effective tax rate and the federal statutory rate of 21 percent were an excess tax benefit on vested stock compensation and return-to-accrual adjustments related to previously filed tax returns.

13

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

Deferred Taxes

As of March 30, 2024 and December 31, 2023, the Company’s net DTA included $14 million and $15 million, respectively, of disallowed U.S. interest deductions that the Company does not believe will be realized. In strict compliance with the American Institute of Certified Public Accountants’ Technical Questions and Answers 3300.01-02, which asserts that certain material evidence regarding the realizability of disallowed U.S. interest deductions should be ignored when assessing the need for a valuation allowance, the Company has not recognized a valuation allowance on this portion of the net DTA generated from disallowed interest.

14. Segments

The Company operates in the following business segments: High Purity Cellulose, Paperboard and High-Yield Pulp. Corporate consists primarily of senior management, accounting, information systems, human resources, treasury, tax and legal administrative functions that provide support services to the operating business units. The Company allocates a portion of the cost of maintaining these support functions to its operating units.

The Company evaluates the performance of its segments based on operating income (loss). Intersegment sales consist primarily of High-Yield Pulp sales to Paperboard. Intersegment sales prices are at rates that approximate market for the respective operating area.

Net sales, disaggregated by product line, was comprised of the following:

	Three Months Ended
	March 30, 2024		April 1, 2023
High Purity Cellulose
Cellulose Specialties	$	194,423	$	226,665
Commodity Products	90,001		124,040
Other sales(a)	22,384		23,489
Total High Purity Cellulose	306,808		374,194
Paperboard	52,960		58,994
High-Yield Pulp	34,326		41,860
Eliminations	(6,438)		(8,287)
Net sales	$	387,656	$	466,761

(a)Included sales of bioelectricity, lignosulfonates and other by-products to third parties.

Operating income (loss) by segment was comprised of the following:

	Three Months Ended
	March 30, 2024		April 1, 2023
High Purity Cellulose	$	20,741	$	12,934
Paperboard	7,909		9,734
High-Yield Pulp	(671)		7,256
Corporate	(10,904)		(13,330)
Operating income (loss)	$	17,075	$	16,594

Identifiable assets by segment were as follows:

	March 30, 2024		December 31, 2023
High Purity Cellulose	$	1,485,599	$	1,510,076
Paperboard	101,873		105,804
High-Yield Pulp	48,028		43,811
Corporate	499,546		523,009
Total assets	$	2,135,046	$	2,182,700

14

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

15. Commitments and Contingencies

Commitments

The Company had no material changes to the purchase obligations presented in its 2023 Form 10-K that were outside the normal course of business during the three months ended March 30, 2024. The Company’s purchase obligations primarily consist of commitments for the purchase of natural gas, electricity and wood chips.

The Company leases certain buildings, machinery and equipment under various operating and finance leases. See Note 4—Leases for further information.

Litigation and Contingencies

Duties on Canadian Softwood Lumber Sold to the U.S.

The Company previously operated six softwood lumber mills in Ontario and Quebec, Canada, and exported softwood lumber into the U.S. from Canada. In connection with these exports, the Company paid approximately $112 million of softwood lumber duties between 2017 and August 2021, including $1 million of ancillary fees, which were recorded as expense in the periods incurred. As part of the sale of its lumber assets, the Company retained all rights and obligations to softwood duties generated or incurred through the closing date of the sale. As of March 30, 2024, the Company had a $40 million long-term receivable associated with the USDOC’s determinations of the revised duty rates for 2017 through 2021. This amount does not include interest, which will be due on any amounts refunded. The Company estimates that interest earned on the total amount of softwood lumber duties paid will exceed $10 million.

On May 6, 2024, the Company announced the sale of these rights, including all accrued interest, for $39 million, with the opportunity for additional sale proceeds in the future contingent upon the timing and terms of the ultimate outcome of the trade dispute between the USDOC and Canada.

Other

In addition to the above, the Company is engaged in various legal and regulatory actions and proceedings and has been named as a defendant in various lawsuits and claims arising in the ordinary course of business. While the Company has procured reasonable and customary insurance covering risks normally occurring in connection with its business, the Company has, in certain cases, retained some risk through the operation of self-insurance, primarily in the areas of workers’ compensation, property insurance, business interruption and general liability. These other lawsuits and claims, either individually or in the aggregate, are not expected to have a material adverse effect on the Company’s financial position, results of operations or cash flows.

Guarantees and Other

The Company provides financial guarantees as required by creditors, insurance programs and various governmental agencies. As of March 30, 2024, the Company had net exposure of $34 million from various standby letters of credit, primarily for financial assurance relating to environmental remediation, credit support for natural gas and electricity purchases and guarantees related to foreign retirement plan obligations. These standby letters of credit represent a contingent liability; the Company would only be liable upon its default on the related payment obligations. The standby letters of credit have various expiration dates and are expected to be renewed as required.

The Company had surety bonds of $89 million as of March 30, 2024, primarily to comply with financial assurance requirements relating to environmental remediation and post-closure care, to provide collateral for the Company’s workers’ compensation program and to guarantee taxes and duties for products shipped internationally. These surety bonds expire at various dates and are expected to be renewed annually as required.

LTF is a venture in which the Company owns 45 percent and its partner, Borregaard ASA, owns 55 percent. The Company is a guarantor of LTF’s financing agreements and, in the event of default, expects it would only be liable for its proportional share of any repayment under the agreements. The Company’s proportion of the LTF financing agreement guarantee was $30 million at March 30, 2024.

15

Rayonier Advanced Materials Inc.

Notes to Consolidated Financial Statements (Unaudited)

(in thousands unless otherwise stated)

The Company has not recorded any liabilities for these financial guarantees in its consolidated balance sheets, either because the Company has recorded the underlying liability associated with the guarantee or the guarantee is dependent on the Company’s own performance and, therefore, is not subject to the measurement requirements or because the Company has calculated the estimated fair value of the guarantee and determined it to be immaterial based upon the current facts and circumstances that would trigger a payment obligation.

It is not possible to determine the maximum potential amount of liability under these potential obligations due to the unique set of facts and circumstances likely to be involved with each provision.

As of March 30, 2024, all of the Company’s collective bargaining agreements covering its unionized employees were current. As of the filing of this report, collective bargaining agreements covering approximately 235 unionized employees were expired at the Fernandina plant. The employees have continued to work under the terms of the expired contracts while negotiations continue. While there can be no assurances, the Company expects to reach agreement with the unions. However, a work stoppage could have a material adverse effect on the Company’s business, results of operations and financial condition.

16

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

The following analysis of our financial condition and results of operations should be read in conjunction with our Financial Statements and the notes thereto included in this Quarterly Report on Form 10-Q and with our 2023 Form 10-K and information contained in subsequent Forms 8-K and other reports filed with the SEC.

Forward-Looking Statements

Certain statements in this Quarterly Report on Form 10-Q regarding anticipated financial, business, legal or other outcomes, including business and market conditions, outlook and other similar statements relating to future events, developments or financial or operational performance or results, are “forward-looking statements” made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and other federal securities laws. These forward-looking statements are identified by the use of words such as “may,” “will,” “should,” “could,” “expect,” “estimate,” “target,” “believe,” “intend,” “plan,” “forecast,” “anticipate,” “project,” “guidance” and other similar language. However, the absence of these or similar words or expressions does not mean that a statement is not forward-looking.

Forward-looking statements are not guarantees of future performance or events and undue reliance should not be placed on these statements. Although we believe the expectations reflected in any forward-looking statements are based on reasonable assumptions, we can give no assurance that these expectations will be attained, and it is possible that actual results may differ materially from those indicated by these forward-looking statements due to a variety of risks and uncertainties. The risk factors contained in Item 1A—Risk Factors of our 2023 Form 10-K, among others, could cause actual results or events to differ materially from our historical experience and those expressed in forward-looking statements made in this report.

Forward-looking statements are only as of the date of the filing of this Quarterly Report on Form 10-Q and we undertake no duty to update its forward-looking statements except as required by law. You are advised to review any disclosures that we have made or may make in our filings and other submissions to the SEC, including those on Forms 10-K, 10-Q, 8-K and other reports.

Business Overview

We are a global leader of specialty cellulose materials with a broad offering of high purity cellulose specialties, a natural polymer used in the production of a variety of specialty chemical products, including liquid crystal displays, filters, textiles and performance additives for pharmaceutical, food and other industrial applications. Building upon more than 95 years of experience in cellulose chemistry, we provide some of the highest quality high-purity cellulose pulp products that make up the essential building blocks for our customers’ products while providing exceptional service and value. Our specialized assets are also used to produce biofuels, bioelectricity and other biomaterials such as bioethanol and tall oils. We also produce a unique, lightweight multi-ply paperboard product and a bulky, high-yield pulp product. Our paperboard is used for production in the commercial printing, lottery ticket and high-end packaging sectors. Our high-yield pulp is used by paperboard producers, as well as in traditional printing, writing and specialty paper manufacturing.

We operate in three business segments: High Purity Cellulose, Paperboard and High-Yield Pulp.

Recent Business Developments

•In May 2024, we announced the sale of our refund rights, including interest, related to softwood lumber duties paid from 2017 through 2021 for $39 million. See Note 1—Basis of Presentation to our Financial Statements for further information.

•In April 2024, we announced the suspension of operations at our Temiscaming High Purity Cellulose plant, effective July 2, 2024, for an indefinite period. See Note 1—Basis of Presentation to our Financial Statements for further information.

•In January 2024, we amended our 2027 Term Loan agreement to increase the maximum consolidated secured net leverage ratio that we must maintain in the fourth quarter of 2023 and through fiscal year 2024. In addition, should we exceed the maximum ratio established by the original agreement during this period, we will incur a fee of 0.25% of the principal balance outstanding at the end of the applicable quarter. See Note 6—Debt and Finance Leases to our Financial Statements for further information.

17

2024 Outlook

In October 2023, we announced that we are exploring the potential sale of our Paperboard and High-Yield Pulp assets located at our Temiscaming site. The potential sale is consistent with our commitment to align our portfolio with our long-term growth strategy and provide flexibility to pay down debt, reduce leverage and minimize earnings volatility. The sales process is progressing, albeit slower than originally anticipated, as buyers work through the complexity of carving out these assets from existing operations and consider the impact of the indefinite suspension of the Temiscaming High Purity Cellulose plant. While the suspension and asset sale decisions affecting the Temiscaming site have been approached and carried out independently, we believe the suspension will bring clarity to the asset sale diligence process by validating that these assets can be efficiently run separately.

The indefinite suspension of operations at the Temiscaming High Purity Cellulose plant, announced on April 29, 2024, is anticipated to mitigate the plant’s ongoing operating losses and high capital needs and improve our consolidated free cash flow. We realized an $18 million Adjusted EBITDA loss from these operations in 2023 and invested an average of $15 million in capital expenditures over the past three years; however, any future operational loss reductions will be partially offset by stranded costs. In connection with the suspension of operations, we expect to incur one-time operating charges in 2024 of approximately $30 million, including mothball, severance and other employee costs. Further, we also expect to incur non-cash charges in 2024 related to impairments. Overall, we expect that for 2024, the indefinite suspension of the Temiscaming High Purity Cellulose plant will be marginally positive to Adjusted EBITDA and will increase free cash flow by $15 million to $20 million as lower capital expenditures and benefits from the monetization of working capital are expected to more than offset the one-time and other cash costs associated with the suspension of operations.

On May 6, 2024, we announced the sale of our refund rights, including interest, related to softwood lumber duties paid from 2017 through 2021 for $39 million, with the opportunity for additional sale proceeds in the future contingent upon the timing and terms of the ultimate outcome of the trade dispute between the USDOC and Canada.

The following market assessment represents our current outlook of our business segments’ future performance.

High Purity Cellulose

Average sales prices for cellulose specialties in 2024 are expected to increase by a low single-digit percentage as compared to average sales prices in 2023 as the Company prioritizes value over volume. Sales volumes for cellulose specialties are expected to be comparable to 2023 driven by increased volumes from the closure of a competitor’s plant and a modest increase in ethers sales, offset by a one-time favorable impact from a change in customer contract terms in the prior year quarter and customer destocking in the acetate markets. Demand for RYAM commodity products remains stable as prices are expected to be flat to 2023, despite a difficult comparison to the first quarter of 2023. Commodity sales volumes are expected to decline in 2024 as we suspend operations at our Temiscaming High Purity Cellulose plant for the second half of 2024. Costs are expected to be lower in 2024 driven by lower key input and logistics costs, improved productivity and the indefinite suspension of operations at the Temiscaming High Purity Cellulose plant. Our bioethanol facility in Tartas, France became operational in the first quarter of 2024 and is expected to deliver $3 million to $4 million of EBITDA in 2024, growing to $8 million to $10 million beginning in 2025. EBITDA is expected to decrease in the second quarter of 2024 compared to the first quarter of 2024 due to the annual planned maintenance outage at Jesup, but stronger than the second quarter of 2023.

Paperboard

Paperboard prices in 2024 are expected to remain relatively stable compared to the first quarter of 2024, while sales volumes are expected to improve due to improved customer demand. Raw material prices are expected to increase as purchased pulp prices are forecast to increase from the first quarter 2024 levels. Overall, EBITDA is expected to increase sequentially.

High-Yield Pulp

High-Yield Pulp prices are expected to improve slightly in the second quarter and increase further in the second half of 2024, while sales volumes are expected to remain stable sequentially and then increase in the second half of 2024. Overall, we expect to generate positive EBITDA from this segment in the coming quarter.

Corporate

Corporate costs are expected to be flat or increase slightly in 2024 as we continue our ERP implementation. The project will enhance our operating and reporting systems and is expected to drive additional improvements and efficiencies beginning in 2025.

18

Biomaterials Strategy

We continue to invest in new products to provide both increased end market diversity and incremental profitability. These new products will target the growing green energy and products markets. The successful shipment of our first production of 2G bioethanol from our Tartas, France bioethanol facility is a significant milestone towards our goal of generating $42 million of annual EBITDA from these new products by 2027. Recent achievements include receiving conditional GRAS regulatory approval for a prebiotics product and moving forward with plans for a bioethanol facility in Fernandina Beach. We are also advancing various other projects and are in the process of securing green capital to support these efforts. Updates on the progress of these initiatives will be provided throughout the year.

Results of Operations

	Three Months Ended
(in millions, except percentages)	March 30, 2024			April 1, 2023
Net sales	$	388		$	467
Cost of sales	(351)			(430)
Gross margin	37			37
Selling, general and administrative expense	(21)			(19)
Foreign exchange gain	3			—
Other operating expense, net	(2)			(1)
Operating income	17			17
Interest expense	(21)			(15)
Components of pension and OPEB, excluding service costs	1			(2)
Other income, net	1			—
Loss before income taxes	(2)			—
Income tax benefit	—			3
Equity in loss of equity method investment	—			(1)
Net income (loss)	$	(2)		$	2
Gross margin %	9.5		%	7.9		%
Operating margin %	4.4		%	3.6		%
Effective tax rate	29.7		%	783.6		%

Net Sales

	Three Months Ended
(in millions)	March 30, 2024		April 1, 2023
High Purity Cellulose	$	307	$	374
Paperboard	53		59
High-Yield Pulp	34		42
Eliminations	(6)		(8)
Net sales	$	388	$	467

Net sales for the quarter ended March 30, 2024 decreased $79 million, or 17 percent, compared to the prior year quarter driven by lower sales prices in commodity products, Paperboard and High-Yield Pulp and lower sales volumes in cellulose specialties and commodity products, partially offset by higher sales prices in cellulose specialties and higher sales volumes in High-Yield Pulp. See Operating Results by Segment below for further discussion.

19

Operating Income

	Three Months Ended
(in millions)	March 30, 2024		April 1, 2023
High Purity Cellulose	$	21	$	13
Paperboard	8		10
High-Yield Pulp	(1)		7
Corporate	(11)		(13)
Operating income	$	17	$	17

Operating income for the quarter ended March 30, 2024 was flat compared to the prior year quarter as lower key input and logistics costs and a decrease in Corporate expense items were offset by the decrease in net sales across all segments. See Operating Results by Segment below for further discussion.

Non-Operating Income & Expense

Interest expense increased $6 million during the quarter ended March 30, 2024 compared to the prior year quarter driven by an increase in the average effective interest rate on debt, partially offset by a decrease in the average outstanding balance of debt. Total debt decreased $67 million from April 1, 2023 to March 30, 2024.

Included in non-operating other income in the quarter ended March 30, 2024 was a $1 million impact from favorable foreign exchange rates in the current quarter.

Included in non-operating expense in the quarter ended April 1, 2023 was a $2 million pension settlement loss.

Income Taxes

The effective tax benefit rate for the quarter ended March 30, 2024 was 30 percent. The 2024 effective tax rate differed from the federal statutory rate of 21 percent primarily due to the release of certain tax reserves, partially offset by return-to-accrual adjustments, excess deficit on vested stock compensation and changes in the valuation allowance on disallowed interest deductions.

The effective tax rate for the quarter ended April 1, 2023 was not meaningful due to near break-even pretax income for the period, which results in any discrete tax adjustments significantly impacting the rate. The largest adjustments creating a difference between the effective tax rate and the federal statutory rate of 21 percent were an excess tax benefit on vested stock compensation and return-to-accrual adjustments related to previously filed tax returns.

Operating Results by Segment

High Purity Cellulose

	Three Months Ended
(in millions, unless otherwise stated)	March 30, 2024		April 1, 2023
Net sales	$	307	$	374
Operating income	$	21	$	13
Average sales prices ($ per MT)	$	1,299	$	1,322
Sales volumes (thousands of MTs)	219		265

20

Net Sales

	Three Months Ended April 1, 2023		Changes Attributable to:				Three Months Ended March 30, 2024
(in millions)			Price		Volume/Mix/Other
Cellulose specialties	$	227	$	4	$	(37)	$	194
Commodity products	124		(18)		(16)		90
Other sales(a)	23		—		—		23
Net sales	$	374	$	(14)	$	(53)	$	307

(a)Included sales of bioelectricity, lignosulfonates and other by-products to third parties.

Net sales of our High Purity Cellulose segment for the quarter decreased $67 million compared to the prior year quarter. Included in each of the current and prior year quarters were $23 million of other sales primarily from bio-based energy and lignosulfonates. Despite a 2 percent increase in cellulose specialties prices, total sales prices decreased 2 percent due to an 11 percent decrease in commodity prices. Total sales volumes decreased 17 percent driven by 16 percent and 18 percent decreases in cellulose specialties and commodity volumes, respectively. Increased cellulose specialties sales volumes resulting from the closure of a competitor’s plant in late 2023 and an uptick in ethers sales were more than offset by customer destocking in acetate products and the one-time favorable impact from a change in customer contract terms in the prior year quarter. The decrease in commodity sales volumes was primarily driven by lower production in favor of cellulose specialties production as we built inventory ahead of Jesup’s second quarter planned maintenance outage.

Operating Income

	Three Months Ended April 1, 2023			Gross Margin Changes Attributable to:												Three Months Ended March 30, 2024
(in millions, except percentages)				Sales Price			Sales Volume/Mix/Other(a)			Cost			SG&A and other
Operating income	$	13		$	(14)		$	(32)		$	55		$	(1)		$	21
Operating margin %	3.5		%	(3.8)		%	(10.5)		%	17.9		%	(0.3)		%	6.8		%

(a)Computed based on contribution margin.

Operating income of our High Purity Cellulose segment for the quarter increased $8 million compared to the prior year quarter driven by the higher cellulose specialties sales prices, decreased key input and logistics costs and improved productivity, partially offset by the lower cellulose specialties sales volumes, lower commodity sales prices and volumes and $7 million of energy cost benefits in the prior year quarter from sales of excess emission allowances that did not repeat in the current quarter.

Paperboard

	Three Months Ended
(in millions, unless otherwise stated)	March 30, 2024		April 1, 2023
Net sales	$	53	$	59
Operating income	$	8	$	10
Average sales prices ($ per MT)	$	1,382	$	1,568
Sales volumes (thousands of MTs)	38		38

Net Sales

	Three Months Ended April 1, 2023		Changes Attributable to:				Three Months Ended March 30, 2024
(in millions)			Price		Volume/Mix
Net sales	$	59	$	(7)	$	1	$	53

Net sales of our Paperboard segment for the quarter decreased $6 million compared to the prior year quarter driven by a 12 percent decrease in sales prices due to market-driven demand declines and mix, partially offset by a slight increase in sales volumes.

21

Operating Income

	Three Months Ended April 1, 2023			Gross Margin Changes Attributable to:												Three Months Ended March 30, 2024
(in millions, except percentages)				Sales Price			Sales Volume/Mix(a)			Cost			SG&A and other
Operating income	$	10		$	(7)		$	—		$	5		$	—		$	8
Operating margin %	16.9		%	(11.2)		%	—		%	9.4		%	—		%	15.1		%

(a)Computed based on contribution margin.

Operating income of our Paperboard segment for the quarter decreased $2 million compared to the prior year quarter driven by the lower sales prices, partially offset by lower purchased pulp costs.

High-Yield Pulp

	Three Months Ended
(in millions, unless otherwise stated)	March 30, 2024		April 1, 2023
Net sales	$	34	$	42
Operating income (loss)	$	(1)	$	7
Average sales prices ($ per MT)(a)	$	559	$	769
Sales volumes (thousands of MTs)(a)	50		43

(a)External sales only. During the quarters ended March 30, 2024 and April 1, 2023, the High-Yield Pulp segment sold 16,000 MTs and 17,000 MTs of high-yield pulp to the Paperboard segment for $7 million and $8 million, respectively.

Net Sales

	Three Months Ended April 1, 2023		Changes Attributable to:				Three Months Ended March 30, 2024
(in millions)			Price		Volume/Mix
Net sales	$	42	$	(12)	$	4	$	34

Net sales of our High-Yield Pulp segment for the quarter decreased $8 million compared to the prior year quarter driven by a 27 percent decrease in sales prices due to market supply dynamics in China, partially offset by a 16 percent increase in sales volumes.

Operating Income (Loss)

	Three Months Ended April 1, 2023			Gross Margin Changes Attributable to:												Three Months Ended March 30, 2024
(in millions, except percentages)				Sales Price			Sales Volume/Mix(a)			Cost			SG&A and other
Operating income (loss)	$	7		$	(12)		$	2		$	2		$	—		$	(1)
Operating margin %	16.7		%	(33.3)		%	7.8		%	5.9		%	—		%	(2.9)		%

(a)Computed based on contribution margin.

Operating results of our High-Yield Pulp segment for the quarter declined $8 million compared to the prior year quarter driven by the lower sales prices, partially offset by the higher sales volumes and lower logistics costs.

Corporate

	Three Months Ended
(in millions)	March 30, 2024		April 1, 2023
Operating loss	$	(11)	$	(13)

22

The Corporate operating loss for the quarter decreased $2 million compared to the prior year quarter driven by more favorable foreign exchange rates in the current quarter, partially offset by higher discounting and financing fees in the current quarter.

Liquidity and Capital Resources

Overview

Cash flows from operations, primarily driven by operating results, have historically been our primary source of liquidity and capital resources. As operating cash flows can be negatively impacted by fluctuations in market prices for our commodity products and changes in demand for our products, we maintain a key focus on cash, managing working capital closely and optimizing the timing and level of our capital expenditures. We believe our future cash flows from operations, availability under our ABL Credit Facility and our ability to access the capital markets, if necessary or desirable, will be adequate to fund our operations and anticipated long-term funding requirements, including capital expenditures, defined benefit plan contributions and repayment of debt maturities.

Our Board of Directors suspended our quarterly common stock dividend in September 2019. No dividends have been declared since. The declaration and payment of future common stock dividends, if any, will be at the discretion of our Board of Directors and will be dependent upon our financial condition, results of operations, capital requirements and other factors that the Board of Directors deems relevant. In addition, our debt facilities place limitations on the declaration and payment of future dividends.

In January 2018, our Board of Directors authorized a $100 million common stock share buyback program. We did not repurchase any shares under this program during the three months ended March 30, 2024 and April 1, 2023, and do not expect to utilize any of the remaining $60 million in unused authorization in the future.

Our non-guarantor subsidiaries had assets of $450 million, liabilities of $400 million, year-to-date revenue of $56 million and a trailing twelve month ABL Credit Facility and Term Loan covenant EBITDA for continuing operations of $15 million as of March 30, 2024.

Our liquidity and capital resources are summarized below:

(in millions, except ratios)	March 30, 2024			December 31, 2023
Cash and cash equivalents	$	55		$	76
Availability under the ABL Credit Facility(a)(b)	131			118
Total debt(b)	779			777
Stockholders’ equity	742			747
Total capitalization (total debt plus stockholders’ equity)	1,521			1,524
Debt to capital ratio	51		%	51		%

(a)Amounts available under the ABL Credit Facility fluctuate based on eligible accounts receivable and inventory levels. At March 30, 2024, we had $164 million of gross availability and net available borrowings of $131 million after taking into account outstanding letters of credit of $33 million. In addition to the availability under the ABL Credit Facility, we have $13 million available under our accounts receivable factoring line of credit in France.

(b)See Note 6—Debt and Finance Leases to our Financial Statements for further information.

Cash Requirements

Contractual Commitments

Our principal contractual commitments include standby letters of credit, surety bonds, guarantees, purchase obligations and leases. We utilize arrangements such as standby letters of credit and surety bonds to provide credit support for certain suppliers and vendors in case of their default on critical obligations, collateral for certain of our self-insurance programs and guarantees for the completion of our remediation of environmental liabilities. As part of our ongoing operations, we also periodically issue guarantees to third parties. Our primary purchase obligation payments relate to natural gas, steam energy and wood chips purchase contracts. There have been no material changes to our contractual commitments outside the ordinary course of business during the three months ended March 30, 2024. See Note 15—Commitments and Contingencies to our Financial Statements for further information.

23

Debt

In January 2024, we amended the 2027 Term Loan to increase the maximum consolidated secured net leverage ratio that we must maintain beginning in the fourth quarter of 2023 and through our 2024 fiscal year. The amendment provides us with the operational flexibility to execute our strategic initiatives in 2024. Should we exceed the maximum ratio established by the original agreement in any of these quarters, we will incur a fee of 0.25% of the principal balance outstanding at the end of the applicable quarter. As of March 30, 2024 we were in compliance with all financial and other customary covenants under our 2027 Term Loan and other credit agreements. See Note 6—Debt and Finance Leases to our Financial Statements for further information.

Cash Flows

	Three Months Ended
(in millions)	March 30, 2024		April 1, 2023
Cash flows provided by (used in):
Operating activities	$	12	$	51
Investing activities	(33)		(21)
Financing activities	1		(14)

Cash provided by operating activities decreased $39 million primarily due to net cash outflows from working capital in the current year compared to net inflows in the prior year and higher payments of interest on long-term debt, partially offset by higher payments in the prior year on deferred energy liabilities associated with our Tartas facility operations and the receipt of net tax refunds in the current year compared to net tax payments in the prior year.

Cash used in investing activities increased $12 million due to higher capital spending.

Cash used in financing activities decreased $15 million primarily due to net borrowings of long-term debt in the current year compared to net repayments in the prior year and a decrease in repurchases of common stock to satisfy tax withholding requirements related to the issuance of stock under our incentive stock plans, partially offset by debt issuance costs paid in the current year.

Performance and Liquidity Indicators

The discussion below is presented to enhance the reader’s understanding of our operating performance, liquidity and ability to generate cash and satisfy rating agency and creditor requirements. This information includes the non-GAAP financial measures of EBITDA, adjusted EBITDA and adjusted free cash flows. These measures are not defined by GAAP and our discussion of them is not intended to conflict with or change any of our GAAP disclosures provided in this report.

We believe these non-GAAP financial measures provide useful information to our Board of Directors, management and investors regarding our financial condition and results of operations. Our management uses these non-GAAP financial measures to compare our performance to that of prior periods for trend analyses, to determine management incentive compensation and for budgeting, forecasting and planning purposes. Our management considers these non-GAAP financial measures, in addition to operating income, to be important in estimating our enterprise and stockholder values and for making strategic and operating decisions. In addition, analysts, investors and creditors use these non-GAAP financial measures when analyzing our operating performance, financial condition and cash-generating ability. We use EBITDA and adjusted EBITDA as performance measures and adjusted free cash flows as a liquidity measure.

We do not consider non-GAAP financial measures an alternative to financial measures determined in accordance with GAAP. The principal limitation of these non-GAAP financial measures is that they may exclude significant expense and income items that are required by GAAP to be recognized in our Financial Statements. In addition, they reflect the exercise of management’s judgment about which expense and income items are excluded or included in determining these non-GAAP financial measures. To compensate for these limitations, reconciliations of our non-GAAP financial measures to their most directly comparable GAAP financial measures are provided below. Non-GAAP financial measures are not necessarily indicative of results that may be generated in future periods and should not be relied upon, in whole or part, in evaluating our financial condition, results of operations or future prospects.

24

EBITDA and Adjusted EBITDA

EBITDA is defined as earnings before interest, taxes, depreciation and amortization. Adjusted EBITDA is defined as EBITDA adjusted for items that management believes are not representative of our core operations.

Net income (loss) is reconciled to EBITDA and Adjusted EBITDA, by segment, as follows:

(in millions)	High Purity Cellulose		Paperboard		High-Yield Pulp		Corporate		Total
Three Months Ended March 30, 2024
Net income (loss)	$	21	$	8	$	(1)	$	(30)	$	(2)
Depreciation and amortization	29		4		1		—		34
Interest expense, net	—		—		—		20		20
Income tax benefit	—		—		—		—		—
EBITDA and Adjusted EBITDA	$	50	$	12	$	—	$	(10)	$	52
Three Months Ended April 1, 2023
Net income (loss)	$	13	$	10	$	7	$	(28)	$	2
Depreciation and amortization	31		3		1		—		35
Interest expense, net	—		—		—		15		15
Income tax benefit	—		—		—		(3)		(3)
EBITDA	44		13		8		(16)		49
Pension settlement loss	—		—		—		2		2
Adjusted EBITDA	$	44	$	13	$	8	$	(14)	$	51

EBITDA for the quarter ended March 30, 2024 increased $3 million compared to the prior year quarter driven by lower key input and logistics costs, improved productivity and a decrease in Corporate expense items, partially offset by the decrease in net sales across all segments. See Results of Operations above for additional discussion of the changes in our operating results.

Adjusted Free Cash Flow

Adjusted free cash flow is defined as cash provided by operating activities adjusted for capital expenditures, net of proceeds from the sale of assets and excluding strategic capital expenditures deemed discretionary by management. Adjusted free cash flow is a non-GAAP financial measure of cash generated during a period, which is available for debt reduction, strategic capital expenditures, acquisitions and repurchases of our common stock. Adjusted free cash flow is not necessarily indicative of the adjusted free cash flow that may be generated in future periods.

Cash provided by operating activities is reconciled to adjusted free cash flow as follows:

	Three Months Ended
(in millions)	March 30, 2024		April 1, 2023
Cash provided by operating activities	$	12	$	51
Capital expenditures, net(a)	(28)		(15)
Adjusted free cash flow	$	(16)	$	36

(a)Net of proceeds from the sale of assets and excluding strategic capital expenditures. Strategic capital expenditures for the three months ended March 30, 2024 and April 1, 2023 were $5 million and $6 million, respectively.

Adjusted free cash flow decreased primarily due to changes in working capital and higher capital expenditures. See Liquidity and Capital Resources—Cash Flows above for additional discussion of our operating cash flows.

25

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Market and Other Economic Risks

We are exposed to various market risks, primarily changes in interest rates, currency and commodity prices. Our objective is to minimize the economic impact of these market risks. We may use derivatives in accordance with policies and procedures approved by the Finance & Strategic Planning Committee of our Board of Directors.

Foreign Currency

We manage our foreign currency exposures by balancing certain assets and liabilities denominated in foreign currencies. We may also use foreign currency forward contracts to manage these exposures. The principal objective of such contracts is to minimize the potential volatility and financial impact of changes in foreign currency exchange rates. We do not utilize financial instruments for trading or other speculative purposes.

Prices

The prices, sales volumes and margins of the commodity products of our High Purity Cellulose segment and all the products of the High-Yield Pulp segment have historically been cyclically affected by economic and market shifts, fluctuations in capacity and changes in foreign currency exchange rates. These products have less distinguishing qualities from producer to producer and competition is based primarily on price, which is determined by market supply relative to demand. The overall levels of demand for the products we manufacture, and consequently our sales and profitability, reflect fluctuations in end user demand. Our cellulose specialties product prices are impacted by market supply and demand, raw material and processing costs, changes in global currencies and other factors.

Certain key input costs, such as wood fiber, chemicals and energy, may experience significant price fluctuations, also impacted by market shifts, fluctuations in capacity and other demand and supply dynamics. We may periodically enter into commodity forward contracts to fix some of our energy costs that are subject to price volatility caused by weather, supply conditions, political and economic variables and other unpredictable factors. Such forward contracts partially mitigate the risk of changes to our gross margins resulting from an increase or decrease in these costs. Forward contracts that are derivative instruments are reported in our consolidated balance sheets at their fair values, unless they qualify for the normal purchase normal sale exception and such exception has been elected, in which case the fair values of such contracts are not recognized in the balance sheet.

Variable Interest Rates

As of March 30, 2024 and December 31, 2023, we had $252 million and $255 million, respectively, of variable rate debt subject to interest rate risk. At these borrowing levels, a hypothetical one percent change in interest rates would have resulted in a $2 million change in interest expense for each of the respective periods.

The fair market value of our long-term fixed interest rate debt is also subject to interest rate risk when the debt becomes due or if we do not hold the debt until maturity. The estimated fair value of our fixed-rate debt at March 30, 2024 and December 31, 2023 was $502 million and $498 million, respectively, compared to their respective $544 million and $540 million principal amounts. We use quoted market prices to estimate the fair value of our fixed-rate debt. Generally, the fair market value of fixed-rate debt will increase as interest rates fall and decrease as interest rates rise.

Item 4. Controls and Procedures

Management’s Evaluation of Disclosure Controls and Procedures

Our management is responsible for establishing and maintaining adequate disclosure controls and procedures. Disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act) are designed with the objective of ensuring that information required to be disclosed in reports filed under the Exchange Act, such as this Quarterly Report on Form 10-Q, is (1) recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and (2) accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Because of the inherent limitations in all control systems, no control evaluation can provide absolute assurance that all control exceptions and instances of fraud have been prevented or detected on a timely basis. Even systems determined to be effective can provide only reasonable assurance their objectives are achieved.

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Based on an evaluation of our disclosure controls and procedures as of the end of the period covered by this Quarterly Report on Form 10-Q, our management, including the Chief Executive Officer and Chief Financial Officer, concluded the design and operation of the disclosure controls and procedures were effective as of March 30, 2024.

Internal Control over Financial Reporting

For the quarter ended March 30, 2024, based upon the evaluation required by SEC Rule 13a-15(d), there were no changes in our internal control over financial reporting that would materially affect or are reasonably likely to materially affect our internal control over financial reporting.

27

Part II. Other Information

Item 1. Legal Proceedings

The Company is engaged in various legal and regulatory actions and proceedings and has been named as a defendant in various lawsuits and claims arising in the ordinary course of business. While the Company has procured reasonable and customary insurance covering risks normally occurring in connection with its business, the Company has, in certain cases, retained some risk through the operation of self-insurance, primarily in the areas of workers’ compensation, property insurance, business interruption and general liability. While there can be no assurance, the ultimate outcomes of these actions, either individually or in the aggregate, are not expected to have a material adverse effect on the Company’s financial position, results of operations or cash flows.

Item 1A. Risk Factors

There have been no material changes or updates to the risk factors previously disclosed in our 2023 Form 10-K.

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

Issuer Purchases of Equity Securities

The following table summarizes our purchases of RYAM common stock during the quarter ended March 30, 2024:

	Total Number of Shares Purchased(a)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Dollar Value of Shares That May Yet be Purchased Under the Plans or Programs(b)
January 1 to February 3	5,361	$	4.17	—	$	60,294,000
February 4 to March 2	76,349	$	3.78	—	$	60,294,000
March 3 to March 30	—	$	—	—	$	60,294,000
Total	81,710			—

(a)Represents shares repurchased to satisfy tax withholding requirements related to the issuance of stock under our stock incentive plans.

(b)As of March 30, 2024, the remaining unused authorization under our share buyback program was $60 million.

Item 5. Other Information

(c) During the quarter ended March 30, 2024, no director or officer of the Company adopted, modified or terminated a Rule 10b5-1 or non-Rule 10b5-1 trading arrangement.

28

Item 6. Exhibits

Exhibit No.	Description	Location
3.1	Amended and Restated Certificate of Incorporation of Rayonier Advanced Materials Inc.	Incorporated herein by reference to Exhibit 3.1 to the Registrant’s Form 8-K filed on June 30, 2014
3.2	Certificate of Designations of 8.00% Series A Mandatory Convertible Preferred Stock of Rayonier Advanced Materials Inc., filed with the Secretary of State of the State of Delaware and effective August 10, 2016	Incorporated herein by reference to Exhibit 3.1 to the Registrant’s Form 8-K filed on August 10, 2016
3.3	Certificate of Designations of Series A Junior Participating Preferred Stock	Incorporated herein by reference to Exhibit 3.1 to the Registrant’s Form 8-K filed on March 21, 2022
3.4	Amended and Restated Bylaws of Rayonier Advanced Materials Inc., effective October 19, 2022	Incorporated herein by reference to Exhibit 3.1 to the Registrant’s Form 8-K filed on October 19, 2022
18	Preferability Letter from Grant Thornton LLP	Filed herewith
31.1	Chief Executive Officer’s Certification Pursuant to Rule 13a-14(a)/15d-14(a) and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
31.2	Chief Financial Officer’s Certification Pursuant to Rule 13a-14(a)/15d-14(a) and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
32	Certification of Periodic Financial Reports Under Section 906 of the Sarbanes-Oxley Act of 2002	Furnished herewith
101	Interactive data files (formatted in Inline XBRL) pursuant to Rule 405 of Regulation S-T	Filed herewith
104	Cover page interactive data file (formatted in Inline XBRL and contained in Exhibit 101) pursuant to Rule 406 of Regulation S-T	Filed herewith

29

SIGNATURE

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

Rayonier Advanced Materials Inc.
By:	/s/ MARCUS J. MOELTNER
	Marcus J. Moeltner Chief Financial Officer and Senior Vice President, Finance (Principal Financial Officer)
	Date: May 8, 2024

30

EX-18

Exhibit 18

May 8, 2024

Board of Directors

Rayonier Advanced Materials Inc.

1301 Riverplace Blvd, Suite 2300,

Jacksonville, FL, 32207

Dear Directors:

We are providing this letter solely for inclusion as an exhibit to Rayonier Advanced Materials Inc. (the “Company”) Form 10-Q filing pursuant to Item 601 of Regulation S-K.

As stated in Note 1 to the unaudited condensed consolidated financial statements included in the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 30, 2024, the Company changed its accounting for the valuation of its finished goods, work-in-process and raw materials inventories from first-in first-out to average cost. Note 1 also states management’s belief that the newly adopted accounting principle is preferable in the circumstances because it provides better matching of revenue and expense trends and is a better reflection of periodic income from operations.

With regard to the aforementioned accounting change, it should be understood that authoritative criteria have not been established for evaluating the preferability of one acceptable method of accounting over another acceptable method and, in expressing our concurrence below, we have relied on management’s business planning and judgment and on management’s determination that this change in accounting principle is preferable.

Based on our reading of management’s stated reasons and justification for this change in accounting principle in the Form 10-Q, and our discussions with management as to their judgment about the relevant business planning factors relating to the change, we concur with management that the newly adopted method of accounting is preferable in the Company’s circumstances.

We have not audited the application of the aforementioned accounting change to the financial statements included in Part I of the Company’s Form 10-Q. We also have not audited any consolidated financial statements of the Company as of any date or for any period subsequent to December 31, 2023. Accordingly, we do not express an opinion on whether the accounting for the change in accounting principle has been properly applied or whether the aforementioned financial statements are fairly presented in conformity with accounting principles generally accepted in the United States of America.

Sincerely,

/s/ GRANT THORNTON LLP

Jacksonville, Florida

EX-31.1

Exhibit 31.1

Certification

I, De Lyle W. Bloomquist, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Rayonier Advanced Materials Inc.;

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;

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;

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

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;

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;

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

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

5.The registrant's other certifying officer(s) 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):

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

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: May 8, 2024

/s/ DE LYLE W. BLOOMQUIST

De Lyle W. Bloomquist

President and Chief Executive Officer

Rayonier Advanced Materials Inc.

EX-31.2

Exhibit 31.2

Certification

I, Marcus J. Moeltner, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Rayonier Advanced Materials Inc.;

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;

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;

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

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;

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;

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

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

5.The registrant's other certifying officer(s) 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):

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

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: May 8, 2024

/s/ MARCUS J. MOELTNER

Marcus J. Moeltner

Chief Financial Officer and Senior Vice President, Finance

Rayonier Advanced Materials Inc.

EX-32

Exhibit 32

Certification

The undersigned hereby certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that to our knowledge:

1.The quarterly report on Form 10-Q of Rayonier Advanced Materials Inc. (the “Company”) for the period ended March 30, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 8, 2024

/s/ DE LYLE W. BLOOMQUIST	/s/ MARCUS J. MOELTNER
De Lyle W. Bloomquist	Marcus J. Moeltner
President and Chief Executive Officer	Chief Financial Officer and Senior Vice President, Finance
Rayonier Advanced Materials Inc.	Rayonier Advanced Materials Inc.

XML

Cover Page - shares	3 Months Ended
	Mar. 30, 2024	May 06, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 30, 2024
Document Transition Report	false
Entity File Number	001-36285
Entity Registrant Name	RAYONIER ADVANCED MATERIALS INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-4559529
Entity Address, Address Line One	1301 RIVERPLACE BOULEVARD
Entity Address, Address Line Two	SUITE 2300
Entity Address, City or Town	JACKSONVILLE
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	32207
City Area Code	904
Local Phone Number	357-4600
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	RYAM
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		65,576,090
Entity Central Index Key	0001597672
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false

XML

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Income Statement [Abstract]
Net sales	$ 387,656	$ 466,761
Cost of sales	(350,895)	(429,321)
Gross margin	36,761	37,440
Selling, general and administrative expense	(21,075)	(19,495)
Foreign exchange gain (loss)	2,911	(673)
Other operating expense, net	(1,522)	(678)
Operating income	17,075	16,594
Interest expense	(20,855)	(15,496)
Components of pension and OPEB, excluding service costs (Note 12)	920	(1,734)
Other income, net	1,270	306
Loss before income taxes	(1,590)	(330)
Income tax benefit (Note 13)	472	2,586
Equity in loss of equity method investment	(452)	(649)
Net income (loss)	$ (1,570)	$ 1,607
Basic and Diluted earnings per common share (Note 10)
Net income (loss) per common share-basic (in dollars per share)	$ (0.02)	$ 0.02
Net income (loss) per common share-diluted (in dollars per share)	$ (0.02)	$ 0.02

XML

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,570)	$ 1,607
Other comprehensive income (loss), net of tax (Note 9)
Foreign currency translation adjustment	(4,481)	4,212
Unrealized gain on derivative instruments	41	55
Net loss on employee benefit plans	(14)	(127)
Total other comprehensive income (loss)	(4,454)	4,140
Comprehensive income (loss)	$ (6,024)	$ 5,747

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 54,608	$ 75,768
Accounts receivable, net (Note 2)	183,049	197,457
Inventory (Note 3)	228,050	207,474
Income tax receivable	18,698	19,455
Prepaid and other current assets	61,152	74,904
Total current assets	545,557	575,058
Property, plant and equipment (net of accumulated depreciation of $1,824,097 and $1,797,529, respectively)	1,057,893	1,075,105
Deferred tax assets	344,631	345,181
Intangible assets, net	15,661	17,414
Other assets	171,304	169,942
Total assets	2,135,046	2,182,700
Current liabilities
Accounts payable	157,697	186,226
Accrued and other current liabilities (Note 5)	141,908	154,488
Debt due within one year (Note 6)	23,056	25,283
Current environmental liabilities (Note 7)	9,829	9,833
Total current liabilities	332,490	375,830
Long-term debt (Note 6)	755,626	752,174
Non-current environmental liabilities (Note 7)	160,211	160,458
Pension and other postretirement benefits (Note 12)	99,207	101,493
Deferred tax liabilities	14,367	15,190
Other liabilities	31,395	31,108
Commitments and contingencies (Note 15)
Stockholders’ Equity
Common stock: 140,000,000 shares authorized at $0.01 par value, 65,554,837 and 65,393,014 issued and outstanding, respectively	655	654
Additional paid-in capital	420,448	419,122
Retained earnings	371,018	372,588
Accumulated other comprehensive loss (Note 9)	(50,371)	(45,917)
Total stockholders’ equity	741,750	746,447
Total liabilities and stockholders’ equity	$ 2,135,046	$ 2,182,700

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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Accumulated depreciation	$ 1,824,097	$ 1,797,529
Common stock, shares authorized (in shares)	140,000,000	140,000,000
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	65,554,837	65,393,014
Common stock, shares outstanding (in shares)	65,554,837	65,393,014

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Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands		Total	Common Stock	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2022			64,020,761
Beginning balance at Dec. 31, 2022		$ 829,313	$ 640	$ 418,048	$ 474,423	$ (63,798)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		1,607			1,607
Other comprehensive income (loss), net of tax		4,140				4,140
Issuance of common stock under incentive stock plans (in shares)			1,700,494
Issuance of common stock under incentive stock plans		0	$ 17	(17)
Stock-based compensation		1,478		1,478
Repurchase of common stock (in shares)	[1]		(614,907)
Repurchase of common stock	[1]	(5,109)	$ (6)	(5,103)
Ending balance (in shares) at Apr. 01, 2023			65,106,348
Ending balance at Apr. 01, 2023		$ 831,429	$ 651	414,406	476,030	(59,658)
Beginning balance (in shares) at Dec. 31, 2023		65,393,014	65,393,014
Beginning balance at Dec. 31, 2023		$ 746,447	$ 654	419,122	372,588	(45,917)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		(1,570)			(1,570)
Other comprehensive income (loss), net of tax		(4,454)				(4,454)
Issuance of common stock under incentive stock plans (in shares)			243,533
Issuance of common stock under incentive stock plans		0	$ 2	(2)
Stock-based compensation		1,780		1,780
Repurchase of common stock (in shares)	[1]		(81,710)
Repurchase of common stock	[1]	$ (453)	$ (1)	(452)
Ending balance (in shares) at Mar. 30, 2024		65,554,837	65,554,837
Ending balance at Mar. 30, 2024		$ 741,750	$ 655	$ 420,448	$ 371,018	$ (50,371)

[1] Repurchased to satisfy tax withholding requirements related to the issuance of stock under the Company’s incentive stock plans.

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Operating activities
Net income (loss)	$ (1,570)	$ 1,607
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	33,283	35,257
Stock-based compensation expense	1,780	1,478
Net periodic benefit cost of pension and other postretirement plans	755	921
Unrealized (gain) loss on foreign currency	(1,899)	267
Other	3,062	2,152
Changes in operating assets and liabilities:
Accounts receivable	12,792	9,242
Inventories	(21,231)	28,600
Accounts payable	(14,320)	(6,971)
Accrued liabilities	(12,476)	(26,406)
Other	13,353	9,929
Contributions to pension and other postretirement plans	(2,264)	(4,687)
Cash provided by operating activities	11,265	51,389
Investing activities
Capital expenditures, net of proceeds	(32,561)	(21,180)
Investment in equity method investment	0	(168)
Cash used in investing activities	(32,561)	(21,348)
Financing activities
Borrowings of long-term debt	132,825	536
Repayments of long-term debt	(127,861)	(8,369)
Short-term financing, net	(1,709)	(647)
Debt issuance costs	(1,875)	0
Repurchase of common stock	(453)	(5,109)
Cash provided by (used in) financing activities	927	(13,589)
Net increase (decrease) in cash and cash equivalents	(20,369)	16,452
Net effect of foreign exchange on cash and cash equivalents	(791)	1,147
Balance, beginning of period	75,768	151,803
Balance, end of period	54,608	169,402
Supplemental cash flow information:
Interest paid	(34,036)	(18,841)
Income taxes refunded (paid), net	1,587	(3,029)
Capital assets purchased on account	$ 23,495	$ 30,041

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Basis of Presentation

3 Months Ended

Mar. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

1. Basis of Presentation

RYAM is a global leader of specialty cellulose materials with a broad offering of high purity cellulose specialties, a natural polymer used in the production of a variety of specialty chemical products, including liquid crystal displays, filters, textiles and performance additives for pharmaceutical, food and other industrial applications. The Company’s specialized assets are also used to produce biofuels, bioelectricity and other biomaterials such as bioethanol and tall oils. The Company also produces a unique, lightweight multi-ply paperboard product, which is used for production in the commercial printing, lottery ticket and high-end packaging sectors, and a bulky, high-yield pulp product that is used by paperboard producers, as well as in traditional printing, writing and specialty paper manufacturing.

The unaudited consolidated financial statements and notes thereto of the Company have been prepared in accordance with GAAP for interim financial information and in accordance with the rules and regulations of the SEC. In the opinion of management, these consolidated financial statements and notes reflect all adjustments, including all normal recurring adjustments, necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented. These statements and notes should be read in conjunction with the consolidated financial statements and supplementary data included in the Company’s 2023 Form 10-K.

Recent Accounting Developments

Change in Accounting Policy

On January 1, 2024, the Company changed the method of valuation of its finished goods, work-in-process and raw materials inventories from first-in first-out to average cost. The Company believes the average cost method is preferable because it provides better matching of revenue and expense trends and is a better reflection of periodic income from operations. This change was not retrospectively applied to prior periods presented, as the overall effect of the change is not deemed material to the Company’s consolidated financial statements.

Accounting Pronouncements

There have been no new or recently adopted accounting pronouncements impacting the Company’s consolidated interim financial statements. The Company continues to evaluate the impacts of ASU 2023-05 “Business Combinations—Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement,” ASU 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures” and ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” as previously disclosed in its 2023 Form 10-K.

Subsequent Events

Indefinite Suspension of Operations of Temiscaming High Purity Cellulose Plant

On April 29, 2024, the Company announced that it will suspend operations at its Temiscaming High Purity Cellulose plant, effective July 2, 2024, for an indefinite period. The decision does not affect the Temiscaming paperboard and high-yield pulp plants that support the Company’s High-Yield Pulp and Paperboard operating segments, which will continue to operate at full capacity while remaining part of an ongoing, previously announced, sales process. The effective date was determined as the latest possible date allowing enough lead time for the Company to properly execute the shutdown prior to the arrival of winter in the region. The High Purity Cellulose plant will be idled in a safe and environmentally sound manner. The Company will assess on an annual basis the possibility of restarting the Temiscaming High Purity Cellulose plant.

The indefinite suspension of operations will result in approximately 275 layoffs. In connection with the suspension of operations, the Company expects to incur one-time operating charges in 2024 of approximately $30 million, including mothball, severance and other employee costs. Further, the Company also expects to incur non-cash charges in 2024 related to impairments, the amounts of which will be assessed. While most 2024 cash costs associated with the suspension of operations will be incurred and paid in the third and fourth quarters, severance and other restructuring costs are expected to be paid over a period of time.

From 2021 through 2023, average maintenance capital expenditures for the Temiscaming High Purity Cellulose plant was $15 million. In 2023, the High Purity Cellulose plant incurred an operating loss of $60 million, including a non-cash asset impairment of $25 million. Working capital for the High Purity Cellulose plant was $31 million at the end of 2023.

Sale of Softwood Lumber Duty Rights

In August 2021, the Company completed the sale of its lumber and newsprint facilities. As part of the sale, the Company retained all refund rights, including interest, to softwood lumber duties paid by the Company from 2017 through 2021, and has accumulated a $40 million receivable as a result of USDOC administrative reviews. On May 6, 2024, the Company announced the sale of these rights, including all accrued interest, for $39 million, with the opportunity for additional sale proceeds in the future contingent upon the timing and terms of the ultimate outcome of the trade dispute between the USDOC and Canada.

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Accounts Receivable, Net

3 Months Ended

Mar. 30, 2024

Receivables [Abstract]

Accounts Receivable, Net

2. Accounts Receivable, Net

Accounts receivable, net included the following:

	March 30, 2024		December 31, 2023
Accounts receivable, trade	$	152,938	$	166,137
Accounts receivable, other(a)	30,847		31,973
Allowance for credit loss	(736)		(653)
Accounts receivable, net	$	183,049	$	197,457

(a)Consists primarily of value-added/consumption taxes, grants receivable and accrued billings due from government agencies.

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Inventory

3 Months Ended

Mar. 30, 2024

Inventory Disclosure [Abstract]

Inventory

3. Inventory

Inventory included the following:

	March 30, 2024		December 31, 2023
Finished goods	$	170,222	$	147,930
Work-in-progress	5,157		6,987
Raw materials	47,014		46,120
Manufacturing and maintenance supplies	5,657		6,437
Inventory	$	228,050	$	207,474

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Leases

3 Months Ended

Mar. 30, 2024

Leases [Abstract]

Leases

4. Leases

The Company’s operating and finance leases are primarily for corporate offices, warehouse space, rail cars and equipment. As of March 30, 2024, the Company’s leases have remaining lease terms of less than one year to 12.6 years with standard renewal and termination options available at the Company’s discretion. Certain equipment leases have purchase options at the end of the term of the lease, which are not included in the ROU assets, as it is not reasonably certain that the Company will exercise such options. The Company’s lease agreements do not contain any material residual value guarantees or restrictive covenants. The Company uses its incremental borrowing rate in determining the present value of lease payments unless the lease provides an implicit or explicit interest rate.

Financial and other information related to the Company’s operating and finance leases follow:

	Three Months Ended
	March 30, 2024		April 1, 2023
Operating lease cost	$	1,710	$	1,694
Finance lease cost
Amortization of ROU assets	106		99
Interest	23		30
Total lease cost	$	1,839	$	1,823

	Balance Sheet Location	March 30, 2024		December 31, 2023
Operating leases
ROU assets	Other assets	$	17,271	$	17,475
Lease liabilities, current	Accrued and other current liabilities	4,793		4,499
Lease liabilities, non-current	Other liabilities	14,161		14,666
Finance leases
ROU assets	Property, plant and equipment, net	986		1,078
Lease liabilities	Long-term debt	1,250		1,355

	Three Months Ended
	March 30, 2024		April 1, 2023
Operating cash flows - cash paid for amounts included in the measurement of operating lease liabilities	$	1,675	$	1,581
Operating lease ROU assets obtained in exchange for lease liabilities	1,194		(80)

Finance lease cash flows were immaterial during each of the three months ended March 30, 2024 and April 1, 2023.

	March 30, 2024		December 31, 2023
Operating leases
Weighted average remaining lease term (in years)	5.3		5.5
Weighted average discount rate	8.3	%	8.3	%
Finance leases
Weighted average remaining lease term (in years)	2.6		2.8
Weighted average discount rate	7.0	%	7.0	%

Operating lease maturities as of March 30, 2024 were as follows:

Remainder of 2024	$	4,619
2025	5,509
2026	4,397
2027	3,305
2028	2,064
Thereafter	4,094
Total minimum lease payments	23,988
Less: imputed interest	(5,034)
Present value of future minimum lease payments	$	18,954

Leases

4. Leases

The Company’s operating and finance leases are primarily for corporate offices, warehouse space, rail cars and equipment. As of March 30, 2024, the Company’s leases have remaining lease terms of less than one year to 12.6 years with standard renewal and termination options available at the Company’s discretion. Certain equipment leases have purchase options at the end of the term of the lease, which are not included in the ROU assets, as it is not reasonably certain that the Company will exercise such options. The Company’s lease agreements do not contain any material residual value guarantees or restrictive covenants. The Company uses its incremental borrowing rate in determining the present value of lease payments unless the lease provides an implicit or explicit interest rate.

Financial and other information related to the Company’s operating and finance leases follow:

	Three Months Ended
	March 30, 2024		April 1, 2023
Operating lease cost	$	1,710	$	1,694
Finance lease cost
Amortization of ROU assets	106		99
Interest	23		30
Total lease cost	$	1,839	$	1,823

	Balance Sheet Location	March 30, 2024		December 31, 2023
Operating leases
ROU assets	Other assets	$	17,271	$	17,475
Lease liabilities, current	Accrued and other current liabilities	4,793		4,499
Lease liabilities, non-current	Other liabilities	14,161		14,666
Finance leases
ROU assets	Property, plant and equipment, net	986		1,078
Lease liabilities	Long-term debt	1,250		1,355

	Three Months Ended
	March 30, 2024		April 1, 2023
Operating cash flows - cash paid for amounts included in the measurement of operating lease liabilities	$	1,675	$	1,581
Operating lease ROU assets obtained in exchange for lease liabilities	1,194		(80)

Finance lease cash flows were immaterial during each of the three months ended March 30, 2024 and April 1, 2023.

	March 30, 2024		December 31, 2023
Operating leases
Weighted average remaining lease term (in years)	5.3		5.5
Weighted average discount rate	8.3	%	8.3	%
Finance leases
Weighted average remaining lease term (in years)	2.6		2.8
Weighted average discount rate	7.0	%	7.0	%

Operating lease maturities as of March 30, 2024 were as follows:

Remainder of 2024	$	4,619
2025	5,509
2026	4,397
2027	3,305
2028	2,064
Thereafter	4,094
Total minimum lease payments	23,988
Less: imputed interest	(5,034)
Present value of future minimum lease payments	$	18,954

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Accrued and Other Current Liabilities

3 Months Ended

Mar. 30, 2024

Payables and Accruals [Abstract]

Accrued and Other Current Liabilities

5. Accrued and Other Current Liabilities

Accrued and other current liabilities included the following:

	March 30, 2024		December 31, 2023
Accrued customer incentives	$	33,792	$	30,036
Accrued payroll and benefits	16,778		13,552
Accrued interest	16,491		32,256
Accrued income taxes	4,595		4,605
Accrued property and other taxes	4,596		2,547
Deferred revenue(a)	23,781		24,061
Other current liabilities(b)	41,875		47,431
Accrued and other current liabilities	$	141,908	$	154,488

(a)Included at March 30, 2024 and December 31, 2023 was CAD $25 million (USD $18 million and $19 million, respectively) associated with funds received in 2021 for CEWS. All CEWS claims are subject to mandatory audit. The Company will recognize amounts from these claims in income at the time there is sufficient evidence that it will not be required to repay such amounts.

(b)Included at March 30, 2024 and December 31, 2023 were $14 million and $13 million, respectively, of energy-related payables associated with Tartas facility operations.

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Debt and Finance Leases

3 Months Ended

Mar. 30, 2024

Debt Disclosure [Abstract]

Debt and Finance Leases

6. Debt and Finance Leases

Debt and finance leases included the following:

	March 30, 2024		December 31, 2023
ABL Credit Facility due December 2025: $131 million net availability, bearing interest of 7.42% (5.42% adjusted SOFR plus 2.00% margin) at March 30, 2024	$	—	$	—
Term Loan due July 2027: bearing interest of 13.30% (5.30% three-month Term SOFR plus 8.00% margin) at March 30, 2024	248,750		250,000
7.625% Senior Secured Notes due January 2026	464,640		464,640
5.50% CAD-based term loan due April 2028	28,074		30,479
Other loans(a)	51,783		44,754
Short-term factoring facility	3,493		5,292
Finance lease obligations	1,250		1,355
Total principal payments due	797,990		796,520
Less: unamortized premium, discount and issuance costs	(19,308)		(19,063)
Total debt	778,682		777,457
Less: debt due within one year	(23,056)		(25,283)
Long-term debt	$	755,626	$	752,174

(a)Consist of loans for energy projects and other loans intended for use in biomaterials projects in France.

Term Loan

In January 2024, the Company amended the 2027 Term Loan to increase the maximum consolidated secured net leverage ratio that it must maintain in the fourth quarter of 2023 and through its 2024 fiscal year (see below). In addition, should the Company exceed the 4.50 to 1.00 maximum ratio established by the original agreement in any of these quarters, it will incur a fee of 0.25% of the principal balance outstanding at the end of the applicable quarter. The Company incurred total fees of $3 million related to this amendment, including $1 million in legal and advisory fees recorded to “selling, general and administrative expense” in the consolidated statements of operations in the fourth quarter of 2023, and $2 million in lender fees recorded as deferred financing costs in the first quarter of 2024 that will be amortized to “interest expense” over the remaining term of the loan.

The Company is required to maintain various financial covenants, including a consolidated secured net leverage ratio, based on covenant EBITDA, as follows:

•5.25 to 1.00 for the fourth quarter of 2023 through the second quarter of 2024;

•5.00 to 1.00 for the third fiscal quarter of 2024;

•4.75 to 1.00 for the fourth fiscal quarter of 2024; and

•4.50 to 1.00 for each fiscal quarter thereafter.

At March 30, 2024, the Company was in compliance with all covenants under its debt agreements.

As of March 30, 2024, the Company’s debt principal payments, excluding finance lease obligations, were due as follows:

Remainder of 2024	$	18,713
2025	19,003
2026	483,691
2027	245,664
2028	9,967
Thereafter	19,702
Total debt principal payments	$	796,740

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Environmental Liabilities

3 Months Ended

Mar. 30, 2024

Environmental Remediation Obligations [Abstract]

Environmental Liabilities

7. Environmental Liabilities

The Company’s environmental liabilities balance changed as follows during the three months ended March 30, 2024:

Balance at December 31, 2023	$	170,291
Increase in liabilities	653
Payments	(796)
Foreign currency adjustments	(108)
Balance at March 30, 2024	170,040
Less: current portion	(9,829)
Non-current environmental liabilities	$	160,211

In addition to these estimated liabilities, the Company is subject to the risk of reasonably possible additional liabilities in excess of the established liabilities due to potential changes in circumstances and future events, including, without limitation, changes to current laws and regulations; changes in governmental agency personnel, direction, philosophy or enforcement policies; developments in remediation technologies; increases in the cost of remediation, operation, maintenance and monitoring of its environmental liability sites; changes in the volume, nature or extent of contamination to be remediated or monitoring to be undertaken; the outcome of negotiations with governmental agencies or non-governmental parties; and changes in accounting rules or interpretations. Based on information available as of March 30, 2024, the Company estimates this exposure could range up to approximately $85 million, although no assurances can be given that this amount will not be exceeded given the factors described above. These potential additional costs are attributable to several sites and other applicable liabilities. This estimate excludes liabilities that would otherwise be considered reasonably possible but for the fact that they are not currently estimable, primarily due to the factors discussed above.

Subject to the previous paragraph, the Company believes its estimates of liabilities are sufficient for probable costs expected to be incurred over the next 20 years with respect to its environmental liabilities. However, no assurance is given that these estimates will be sufficient for the reasons described above and additional liabilities could have a material adverse effect on the Company’s financial position, results of operations and cash flows.

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Fair Value Measurements

3 Months Ended

Mar. 30, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements

8. Fair Value Measurements

The carrying amounts of the Company’s cash, receivables and payables approximate fair value due to the short-term nature of those instruments. The carrying amount of borrowings outstanding under the ABL Credit Facility, 2027 Term Loan and short-term factoring facility approximate fair value due to their variable interest rates.

The fair value of the Company’s fixed rate debt is estimated using quoted market prices for debt with similar terms and maturities, which are Level 2 inputs, and was as follows:

	March 30, 2024		December 31, 2023
Carrying amount of fixed rate debt(a)	$	541,455	$	536,393
Fair value of fixed rate debt	501,587		497,563

(a)Excludes finance lease obligations.

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Accumulated Other Comprehensive Loss

3 Months Ended

Mar. 30, 2024

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Loss

9. Accumulated Other Comprehensive Loss

	Three Months Ended
	March 30, 2024		April 1, 2023
Unrecognized components of employee benefit plans, net of tax
Balance, beginning of period	$	(33,537)	$	(43,694)
Reclassifications to earnings(a)
Amortization of gain	(196)		(176)
Amortization of prior service cost	181		13
Income tax on reclassifications	1		36
Net comprehensive loss on employee benefit plans, net of tax	(14)		(127)
Balance, end of period	(33,551)		(43,821)
Unrealized loss on derivative instruments, net of tax
Balance, beginning of period	(373)		(567)
Reclassifications to earnings - foreign currency exchange contracts(b)	47		63
Income tax on reclassifications	(6)		(8)
Net comprehensive gain on derivative instruments, net of tax	41		55
Balance, end of period	(332)		(512)
Foreign currency translation
Balance, beginning of period	(12,007)		(19,537)
Foreign currency translation adjustment, net of tax(c)	(4,481)		4,212
Balance, end of period	(16,488)		(15,325)
Accumulated other comprehensive loss, end of period	$	(50,371)	$	(59,658)

(a)The AOCI components for defined benefit pension and post-retirement plans are included in the computation of net periodic benefit cost. See Note 12—Employee Benefit Plans for further information.

(b)Reclassifications of foreign currency exchange contracts are recorded in “cost of sales,” “other operating expense, net” or “other income, net,” as appropriate.

(c)Foreign currency translation is net of tax effects of $0 for all periods presented, as the French operations are taxed on the foreign functional currency, not the translated reporting currency.

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Earnings Per Common Share

3 Months Ended

Mar. 30, 2024

Earnings Per Share [Abstract]

Earnings Per Common Share

10. Earnings Per Common Share

The following table provides the inputs to the calculations of basic and diluted earnings per common share (share amounts not in thousands):

	Three Months Ended
	March 30, 2024		April 1, 2023
Net income (loss) available for common stockholders	$	(1,570)	$	1,607
Shares used for determining basic earnings per share of common stock	65,447,454		64,504,200
Dilutive effect of:
Stock options	—		531
Performance and restricted stock	—		2,091,922
Shares used for determining diluted earnings per share of common stock	65,447,454		66,596,653

Anti-dilutive instruments excluded from the computation of diluted earnings per share included (not in thousands):

	Three Months Ended
	March 30, 2024	April 1, 2023
Stock options	—	162,171
Performance and restricted stock	3,635,379	96,769
Total anti-dilutive instruments	3,635,379	258,940

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Incentive Stock Plans

3 Months Ended

Mar. 30, 2024

Share-Based Payment Arrangement [Abstract]

Incentive Stock Plans

11. Incentive Stock Plans

Stock-based compensation expense was as follows:

	Three Months Ended
	March 30, 2024		April 1, 2023
Stock-based compensation expense	$	1,780	$	1,478

The Company made new grants of restricted stock units, performance-based stock units and performance-based cash awards during the first quarter of 2024. The 2024 restricted stock unit awards cliff vest after three years. The 2024 performance-based awards cliff vest after three years and are based equally on TSR relative to peers and three-year cumulative adjusted EBITDA. Participants can earn between 0 percent and 200 percent of the target award for each of the TSR and adjusted EBITDA metrics. Performance below threshold for each metric would result in zero payout. The performance-based cash award is paid in cash and is classified as a liability and remeasured to fair value at the end of each reporting period until settlement.

In March 2024, the performance-based awards granted in 2021 vested without meeting the performance thresholds, resulting in no stock units or cash being awarded.

The following table summarizes the 2024 activity of the Company’s incentive stock awards:

	Stock Options			Restricted Stock Units			Performance-Based Stock Units
	Options	Weighted Average Exercise Price		Awards	Weighted Average Grant Date Fair Value		Awards	Weighted Average Grant Date Fair Value
Outstanding at December 31, 2023	46,798	$	37.77	1,886,694	$	6.01	1,370,601	$	7.83
Granted	—	—		389,799	3.79		568,812	4.50
Forfeited	—	—		(41,348)	5.17		(293,790)	11.41
Exercised or settled	—	—		(245,389)	10.52		—	—
Expired or cancelled	(46,798)	29.52		—	—		—	—
Outstanding at March 30, 2024	—	$	—	1,989,756	$	5.04	1,645,623	$	6.12

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Employee Benefit Plans

3 Months Ended

Mar. 30, 2024

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Employee Benefit Plans

12. Employee Benefit Plans

Defined Benefit Plans

The Company has defined benefit pension and other long-term and postretirement benefit plans covering certain union and non-union employees, primarily in the U.S. and Canada. The defined benefit pension plans are closed to new participants. The liabilities for these plans are calculated using actuarial estimates and management assumptions. These estimates are based on historical information and certain assumptions about future events.

During the three months ended April 1, 2023, the Company recorded a $2 million loss related to the final asset surplus distribution to the plan participants of certain wound-up Canadian pension plans. The settlement was recognized in “components of pension and OPEB, excluding service costs” in the Company’s consolidated statements of operations.

The following table presents the components of net periodic benefit costs of these plans:

	Pension				Postretirement
	Three Months Ended				Three Months Ended
	March 30, 2024		April 1, 2023		March 30, 2024		April 1, 2023
Service cost	$	1,537	$	1,217	$	138	$	287
Interest cost	6,923		7,145		248		357
Expected return on plan assets	(8,076)		(7,922)		—		—
Amortization of prior service cost (credit)	205		37		(24)		(24)
Amortization of gain	(11)		(122)		(185)		(54)
Pension settlement loss	—		2,317		—		—
Net periodic benefit cost	$	578	$	2,672	$	177	$	566

Service cost is included in “cost of sales” or “selling, general and administrative expense” in the consolidated statements of operations, as appropriate. Interest cost, expected return on plan assets, amortization of prior service cost (credit) and amortization of gain are included in “components of pension and OPEB, excluding service costs” in the consolidated statements of operations.

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Income Taxes

3 Months Ended

Mar. 30, 2024

Income Tax Disclosure [Abstract]

Income Taxes

13. Income Taxes

Effective Tax Rate

The Company’s effective tax rates were as follows:

	Three Months Ended
	March 30, 2024			April 1, 2023
Loss before income taxes	$	(1,590)		$	(330)
Effective tax rate	29.7		%	783.6		%

The effective tax rate for the three months ended March 30, 2024 differed from the federal statutory rate of 21 percent primarily due to the release of certain tax reserves, partially offset by return-to-accrual adjustments, excess deficit on vested stock compensation and changes in the valuation allowance on disallowed interest deductions.

The effective tax rate for the three months ended April 1, 2023 was not meaningful due to near break-even pretax income for the period, which results in any discrete tax adjustments significantly impacting the rate. The largest adjustments creating a difference between the effective tax rate and the federal statutory rate of 21 percent were an excess tax benefit on vested stock compensation and return-to-accrual adjustments related to previously filed tax returns.

Deferred Taxes

As of March 30, 2024 and December 31, 2023, the Company’s net DTA included $14 million and $15 million, respectively, of disallowed U.S. interest deductions that the Company does not believe will be realized. In strict compliance with the American Institute of Certified Public Accountants’ Technical Questions and Answers 3300.01-02, which asserts that certain material evidence regarding the realizability of disallowed U.S. interest deductions should be ignored when assessing the need for a valuation allowance, the Company has not recognized a valuation allowance on this portion of the net DTA generated from disallowed interest.

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Segments

3 Months Ended

Mar. 30, 2024

Segment Reporting [Abstract]

Segments

14. Segments

The Company operates in the following business segments: High Purity Cellulose, Paperboard and High-Yield Pulp. Corporate consists primarily of senior management, accounting, information systems, human resources, treasury, tax and legal administrative functions that provide support services to the operating business units. The Company allocates a portion of the cost of maintaining these support functions to its operating units.

The Company evaluates the performance of its segments based on operating income (loss). Intersegment sales consist primarily of High-Yield Pulp sales to Paperboard. Intersegment sales prices are at rates that approximate market for the respective operating area.

Net sales, disaggregated by product line, was comprised of the following:

	Three Months Ended
	March 30, 2024		April 1, 2023
High Purity Cellulose
Cellulose Specialties	$	194,423	$	226,665
Commodity Products	90,001		124,040
Other sales(a)	22,384		23,489
Total High Purity Cellulose	306,808		374,194
Paperboard	52,960		58,994
High-Yield Pulp	34,326		41,860
Eliminations	(6,438)		(8,287)
Net sales	$	387,656	$	466,761

(a)Included sales of bioelectricity, lignosulfonates and other by-products to third parties.

Operating income (loss) by segment was comprised of the following:

	Three Months Ended
	March 30, 2024		April 1, 2023
High Purity Cellulose	$	20,741	$	12,934
Paperboard	7,909		9,734
High-Yield Pulp	(671)		7,256
Corporate	(10,904)		(13,330)
Operating income (loss)	$	17,075	$	16,594

Identifiable assets by segment were as follows:

	March 30, 2024		December 31, 2023
High Purity Cellulose	$	1,485,599	$	1,510,076
Paperboard	101,873		105,804
High-Yield Pulp	48,028		43,811
Corporate	499,546		523,009
Total assets	$	2,135,046	$	2,182,700

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Commitments and Contingencies

3 Months Ended

Mar. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

15. Commitments and Contingencies

Commitments

The Company had no material changes to the purchase obligations presented in its 2023 Form 10-K that were outside the normal course of business during the three months ended March 30, 2024. The Company’s purchase obligations primarily consist of commitments for the purchase of natural gas, electricity and wood chips.

The Company leases certain buildings, machinery and equipment under various operating and finance leases. See Note 4—Leases for further information.

Litigation and Contingencies

Duties on Canadian Softwood Lumber Sold to the U.S.

The Company previously operated six softwood lumber mills in Ontario and Quebec, Canada, and exported softwood lumber into the U.S. from Canada. In connection with these exports, the Company paid approximately $112 million of softwood lumber duties between 2017 and August 2021, including $1 million of ancillary fees, which were recorded as expense in the periods incurred. As part of the sale of its lumber assets, the Company retained all rights and obligations to softwood duties generated or incurred through the closing date of the sale. As of March 30, 2024, the Company had a $40 million long-term receivable associated with the USDOC’s determinations of the revised duty rates for 2017 through 2021. This amount does not include interest, which will be due on any amounts refunded. The Company estimates that interest earned on the total amount of softwood lumber duties paid will exceed $10 million.

On May 6, 2024, the Company announced the sale of these rights, including all accrued interest, for $39 million, with the opportunity for additional sale proceeds in the future contingent upon the timing and terms of the ultimate outcome of the trade dispute between the USDOC and Canada.

Other

In addition to the above, the Company is engaged in various legal and regulatory actions and proceedings and has been named as a defendant in various lawsuits and claims arising in the ordinary course of business. While the Company has procured reasonable and customary insurance covering risks normally occurring in connection with its business, the Company has, in certain cases, retained some risk through the operation of self-insurance, primarily in the areas of workers’ compensation, property insurance, business interruption and general liability. These other lawsuits and claims, either individually or in the aggregate, are not expected to have a material adverse effect on the Company’s financial position, results of operations or cash flows.

Guarantees and Other

The Company provides financial guarantees as required by creditors, insurance programs and various governmental agencies. As of March 30, 2024, the Company had net exposure of $34 million from various standby letters of credit, primarily for financial assurance relating to environmental remediation, credit support for natural gas and electricity purchases and guarantees related to foreign retirement plan obligations. These standby letters of credit represent a contingent liability; the Company would only be liable upon its default on the related payment obligations. The standby letters of credit have various expiration dates and are expected to be renewed as required.

The Company had surety bonds of $89 million as of March 30, 2024, primarily to comply with financial assurance requirements relating to environmental remediation and post-closure care, to provide collateral for the Company’s workers’ compensation program and to guarantee taxes and duties for products shipped internationally. These surety bonds expire at various dates and are expected to be renewed annually as required.

LTF is a venture in which the Company owns 45 percent and its partner, Borregaard ASA, owns 55 percent. The Company is a guarantor of LTF’s financing agreements and, in the event of default, expects it would only be liable for its proportional share of any repayment under the agreements. The Company’s proportion of the LTF financing agreement guarantee was $30 million at March 30, 2024.

The Company has not recorded any liabilities for these financial guarantees in its consolidated balance sheets, either because the Company has recorded the underlying liability associated with the guarantee or the guarantee is dependent on the Company’s own performance and, therefore, is not subject to the measurement requirements or because the Company has calculated the estimated fair value of the guarantee and determined it to be immaterial based upon the current facts and circumstances that would trigger a payment obligation.

It is not possible to determine the maximum potential amount of liability under these potential obligations due to the unique set of facts and circumstances likely to be involved with each provision.

As of March 30, 2024, all of the Company’s collective bargaining agreements covering its unionized employees were current. As of the filing of this report, collective bargaining agreements covering approximately 235 unionized employees were expired at the Fernandina plant. The employees have continued to work under the terms of the expired contracts while negotiations continue. While there can be no assurances, the Company expects to reach agreement with the unions. However, a work stoppage could have a material adverse effect on the Company’s business, results of operations and financial condition.

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Pay vs Performance Disclosure
Net income (loss)	$ (1,570)	$ 1,607

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Insider Trading Arrangements	3 Months Ended
	Mar. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Basis of Presentation (Policies)

3 Months Ended

Mar. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

The unaudited consolidated financial statements and notes thereto of the Company have been prepared in accordance with GAAP for interim financial information and in accordance with the rules and regulations of the SEC. In the opinion of management, these consolidated financial statements and notes reflect all adjustments, including all normal recurring adjustments, necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented. These statements and notes should be read in conjunction with the consolidated financial statements and supplementary data included in the Company’s 2023 Form 10-K.

Change in Accounting Policy

Change in Accounting Policy

On January 1, 2024, the Company changed the method of valuation of its finished goods, work-in-process and raw materials inventories from first-in first-out to average cost. The Company believes the average cost method is preferable because it provides better matching of revenue and expense trends and is a better reflection of periodic income from operations. This change was not retrospectively applied to prior periods presented, as the overall effect of the change is not deemed material to the Company’s consolidated financial statements.

Accounting Pronouncements

Accounting Pronouncements

There have been no new or recently adopted accounting pronouncements impacting the Company’s consolidated interim financial statements. The Company continues to evaluate the impacts of ASU 2023-05 “Business Combinations—Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement,” ASU 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures” and ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” as previously disclosed in its 2023 Form 10-K.

Subsequent Events

Subsequent Events

Indefinite Suspension of Operations of Temiscaming High Purity Cellulose Plant

On April 29, 2024, the Company announced that it will suspend operations at its Temiscaming High Purity Cellulose plant, effective July 2, 2024, for an indefinite period. The decision does not affect the Temiscaming paperboard and high-yield pulp plants that support the Company’s High-Yield Pulp and Paperboard operating segments, which will continue to operate at full capacity while remaining part of an ongoing, previously announced, sales process. The effective date was determined as the latest possible date allowing enough lead time for the Company to properly execute the shutdown prior to the arrival of winter in the region. The High Purity Cellulose plant will be idled in a safe and environmentally sound manner. The Company will assess on an annual basis the possibility of restarting the Temiscaming High Purity Cellulose plant.

The indefinite suspension of operations will result in approximately 275 layoffs. In connection with the suspension of operations, the Company expects to incur one-time operating charges in 2024 of approximately $30 million, including mothball, severance and other employee costs. Further, the Company also expects to incur non-cash charges in 2024 related to impairments, the amounts of which will be assessed. While most 2024 cash costs associated with the suspension of operations will be incurred and paid in the third and fourth quarters, severance and other restructuring costs are expected to be paid over a period of time.

From 2021 through 2023, average maintenance capital expenditures for the Temiscaming High Purity Cellulose plant was $15 million. In 2023, the High Purity Cellulose plant incurred an operating loss of $60 million, including a non-cash asset impairment of $25 million. Working capital for the High Purity Cellulose plant was $31 million at the end of 2023.

Sale of Softwood Lumber Duty Rights

In August 2021, the Company completed the sale of its lumber and newsprint facilities. As part of the sale, the Company retained all refund rights, including interest, to softwood lumber duties paid by the Company from 2017 through 2021, and has accumulated a $40 million receivable as a result of USDOC administrative reviews. On May 6, 2024, the Company announced the sale of these rights, including all accrued interest, for $39 million, with the opportunity for additional sale proceeds in the future contingent upon the timing and terms of the ultimate outcome of the trade dispute between the USDOC and Canada.

Financial Instruments

The carrying amounts of the Company’s cash, receivables and payables approximate fair value due to the short-term nature of those instruments. The carrying amount of borrowings outstanding under the ABL Credit Facility, 2027 Term Loan and short-term factoring facility approximate fair value due to their variable interest rates.

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Accounts Receivable, Net (Tables)

3 Months Ended

Mar. 30, 2024

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts receivable, net included the following:

	March 30, 2024		December 31, 2023
Accounts receivable, trade	$	152,938	$	166,137
Accounts receivable, other(a)	30,847		31,973
Allowance for credit loss	(736)		(653)
Accounts receivable, net	$	183,049	$	197,457

(a)Consists primarily of value-added/consumption taxes, grants receivable and accrued billings due from government agencies.

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Inventory (Tables)

3 Months Ended

Mar. 30, 2024

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventory included the following:

	March 30, 2024		December 31, 2023
Finished goods	$	170,222	$	147,930
Work-in-progress	5,157		6,987
Raw materials	47,014		46,120
Manufacturing and maintenance supplies	5,657		6,437
Inventory	$	228,050	$	207,474

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Leases (Tables)

3 Months Ended

Mar. 30, 2024

Leases [Abstract]

Components of Lease Expense

Financial and other information related to the Company’s operating and finance leases follow:

	Three Months Ended
	March 30, 2024		April 1, 2023
Operating lease cost	$	1,710	$	1,694
Finance lease cost
Amortization of ROU assets	106		99
Interest	23		30
Total lease cost	$	1,839	$	1,823

	Three Months Ended
	March 30, 2024		April 1, 2023
Operating cash flows - cash paid for amounts included in the measurement of operating lease liabilities	$	1,675	$	1,581
Operating lease ROU assets obtained in exchange for lease liabilities	1,194		(80)

	March 30, 2024		December 31, 2023
Operating leases
Weighted average remaining lease term (in years)	5.3		5.5
Weighted average discount rate	8.3	%	8.3	%
Finance leases
Weighted average remaining lease term (in years)	2.6		2.8
Weighted average discount rate	7.0	%	7.0	%

Balance Sheet Components

	Balance Sheet Location	March 30, 2024		December 31, 2023
Operating leases
ROU assets	Other assets	$	17,271	$	17,475
Lease liabilities, current	Accrued and other current liabilities	4,793		4,499
Lease liabilities, non-current	Other liabilities	14,161		14,666
Finance leases
ROU assets	Property, plant and equipment, net	986		1,078
Lease liabilities	Long-term debt	1,250		1,355

Operating Lease Maturities

Operating lease maturities as of March 30, 2024 were as follows:

Remainder of 2024	$	4,619
2025	5,509
2026	4,397
2027	3,305
2028	2,064
Thereafter	4,094
Total minimum lease payments	23,988
Less: imputed interest	(5,034)
Present value of future minimum lease payments	$	18,954

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Accrued and Other Current Liabilities (Tables)

3 Months Ended

Mar. 30, 2024

Payables and Accruals [Abstract]

Schedule of Accrued and Other Current Liabilities

Accrued and other current liabilities included the following:

	March 30, 2024		December 31, 2023
Accrued customer incentives	$	33,792	$	30,036
Accrued payroll and benefits	16,778		13,552
Accrued interest	16,491		32,256
Accrued income taxes	4,595		4,605
Accrued property and other taxes	4,596		2,547
Deferred revenue(a)	23,781		24,061
Other current liabilities(b)	41,875		47,431
Accrued and other current liabilities	$	141,908	$	154,488

(a)Included at March 30, 2024 and December 31, 2023 was CAD $25 million (USD $18 million and $19 million, respectively) associated with funds received in 2021 for CEWS. All CEWS claims are subject to mandatory audit. The Company will recognize amounts from these claims in income at the time there is sufficient evidence that it will not be required to repay such amounts.

(b)Included at March 30, 2024 and December 31, 2023 were $14 million and $13 million, respectively, of energy-related payables associated with Tartas facility operations.

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Debt and Finance Leases (Tables)

3 Months Ended

Mar. 30, 2024

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Debt and finance leases included the following:

	March 30, 2024		December 31, 2023
ABL Credit Facility due December 2025: $131 million net availability, bearing interest of 7.42% (5.42% adjusted SOFR plus 2.00% margin) at March 30, 2024	$	—	$	—
Term Loan due July 2027: bearing interest of 13.30% (5.30% three-month Term SOFR plus 8.00% margin) at March 30, 2024	248,750		250,000
7.625% Senior Secured Notes due January 2026	464,640		464,640
5.50% CAD-based term loan due April 2028	28,074		30,479
Other loans(a)	51,783		44,754
Short-term factoring facility	3,493		5,292
Finance lease obligations	1,250		1,355
Total principal payments due	797,990		796,520
Less: unamortized premium, discount and issuance costs	(19,308)		(19,063)
Total debt	778,682		777,457
Less: debt due within one year	(23,056)		(25,283)
Long-term debt	$	755,626	$	752,174

(a)Consist of loans for energy projects and other loans intended for use in biomaterials projects in France.

Schedule of Maturities of Long-term Debt

As of March 30, 2024, the Company’s debt principal payments, excluding finance lease obligations, were due as follows:

Remainder of 2024	$	18,713
2025	19,003
2026	483,691
2027	245,664
2028	9,967
Thereafter	19,702
Total debt principal payments	$	796,740

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Environmental Liabilities (Tables)

3 Months Ended

Mar. 30, 2024

Environmental Remediation Obligations [Abstract]

Schedule of Liabilities for Disposed Operations

The Company’s environmental liabilities balance changed as follows during the three months ended March 30, 2024:

Balance at December 31, 2023	$	170,291
Increase in liabilities	653
Payments	(796)
Foreign currency adjustments	(108)
Balance at March 30, 2024	170,040
Less: current portion	(9,829)
Non-current environmental liabilities	$	160,211

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 30, 2024

Fair Value Disclosures [Abstract]

Schedule of Fair Value, by Balance Sheet Grouping

The fair value of the Company’s fixed rate debt is estimated using quoted market prices for debt with similar terms and maturities, which are Level 2 inputs, and was as follows:

	March 30, 2024		December 31, 2023
Carrying amount of fixed rate debt(a)	$	541,455	$	536,393
Fair value of fixed rate debt	501,587		497,563

(a)Excludes finance lease obligations.

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Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 30, 2024

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Loss

	Three Months Ended
	March 30, 2024		April 1, 2023
Unrecognized components of employee benefit plans, net of tax
Balance, beginning of period	$	(33,537)	$	(43,694)
Reclassifications to earnings(a)
Amortization of gain	(196)		(176)
Amortization of prior service cost	181		13
Income tax on reclassifications	1		36
Net comprehensive loss on employee benefit plans, net of tax	(14)		(127)
Balance, end of period	(33,551)		(43,821)
Unrealized loss on derivative instruments, net of tax
Balance, beginning of period	(373)		(567)
Reclassifications to earnings - foreign currency exchange contracts(b)	47		63
Income tax on reclassifications	(6)		(8)
Net comprehensive gain on derivative instruments, net of tax	41		55
Balance, end of period	(332)		(512)
Foreign currency translation
Balance, beginning of period	(12,007)		(19,537)
Foreign currency translation adjustment, net of tax(c)	(4,481)		4,212
Balance, end of period	(16,488)		(15,325)
Accumulated other comprehensive loss, end of period	$	(50,371)	$	(59,658)

(a)The AOCI components for defined benefit pension and post-retirement plans are included in the computation of net periodic benefit cost. See Note 12—Employee Benefit Plans for further information.

(b)Reclassifications of foreign currency exchange contracts are recorded in “cost of sales,” “other operating expense, net” or “other income, net,” as appropriate.

(c)Foreign currency translation is net of tax effects of $0 for all periods presented, as the French operations are taxed on the foreign functional currency, not the translated reporting currency.

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Earnings Per Common Share (Tables)

3 Months Ended

Mar. 30, 2024

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table provides the inputs to the calculations of basic and diluted earnings per common share (share amounts not in thousands):

	Three Months Ended
	March 30, 2024		April 1, 2023
Net income (loss) available for common stockholders	$	(1,570)	$	1,607
Shares used for determining basic earnings per share of common stock	65,447,454		64,504,200
Dilutive effect of:
Stock options	—		531
Performance and restricted stock	—		2,091,922
Shares used for determining diluted earnings per share of common stock	65,447,454		66,596,653

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Anti-dilutive instruments excluded from the computation of diluted earnings per share included (not in thousands):

	Three Months Ended
	March 30, 2024	April 1, 2023
Stock options	—	162,171
Performance and restricted stock	3,635,379	96,769
Total anti-dilutive instruments	3,635,379	258,940

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Incentive Stock Plans (Tables)

3 Months Ended

Mar. 30, 2024

Share-Based Payment Arrangement [Abstract]

Summary of Stock-Based Compensation Expense

Stock-based compensation expense was as follows:

	Three Months Ended
	March 30, 2024		April 1, 2023
Stock-based compensation expense	$	1,780	$	1,478

Summary of Activity for Incentive Stock Awards

The following table summarizes the 2024 activity of the Company’s incentive stock awards:

	Stock Options			Restricted Stock Units			Performance-Based Stock Units
	Options	Weighted Average Exercise Price		Awards	Weighted Average Grant Date Fair Value		Awards	Weighted Average Grant Date Fair Value
Outstanding at December 31, 2023	46,798	$	37.77	1,886,694	$	6.01	1,370,601	$	7.83
Granted	—	—		389,799	3.79		568,812	4.50
Forfeited	—	—		(41,348)	5.17		(293,790)	11.41
Exercised or settled	—	—		(245,389)	10.52		—	—
Expired or cancelled	(46,798)	29.52		—	—		—	—
Outstanding at March 30, 2024	—	$	—	1,989,756	$	5.04	1,645,623	$	6.12

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Employee Benefit Plans (Tables)

3 Months Ended

Mar. 30, 2024

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of Net Pension and Postretirement Benefit Costs

The following table presents the components of net periodic benefit costs of these plans:

	Pension				Postretirement
	Three Months Ended				Three Months Ended
	March 30, 2024		April 1, 2023		March 30, 2024		April 1, 2023
Service cost	$	1,537	$	1,217	$	138	$	287
Interest cost	6,923		7,145		248		357
Expected return on plan assets	(8,076)		(7,922)		—		—
Amortization of prior service cost (credit)	205		37		(24)		(24)
Amortization of gain	(11)		(122)		(185)		(54)
Pension settlement loss	—		2,317		—		—
Net periodic benefit cost	$	578	$	2,672	$	177	$	566

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Income Taxes (Tables)

3 Months Ended

Mar. 30, 2024

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The Company’s effective tax rates were as follows:

	Three Months Ended
	March 30, 2024			April 1, 2023
Loss before income taxes	$	(1,590)		$	(330)
Effective tax rate	29.7		%	783.6		%

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Segments (Tables)

3 Months Ended

Mar. 30, 2024

Segment Reporting [Abstract]

Reconciliation of Net Sales by Product Line

Net sales, disaggregated by product line, was comprised of the following:

	Three Months Ended
	March 30, 2024		April 1, 2023
High Purity Cellulose
Cellulose Specialties	$	194,423	$	226,665
Commodity Products	90,001		124,040
Other sales(a)	22,384		23,489
Total High Purity Cellulose	306,808		374,194
Paperboard	52,960		58,994
High-Yield Pulp	34,326		41,860
Eliminations	(6,438)		(8,287)
Net sales	$	387,656	$	466,761

(a)Included sales of bioelectricity, lignosulfonates and other by-products to third parties.

Reconciliation of Operating Income (Loss)

Operating income (loss) by segment was comprised of the following:

	Three Months Ended
	March 30, 2024		April 1, 2023
High Purity Cellulose	$	20,741	$	12,934
Paperboard	7,909		9,734
High-Yield Pulp	(671)		7,256
Corporate	(10,904)		(13,330)
Operating income (loss)	$	17,075	$	16,594

Reconciliation of Identifiable Assets

Identifiable assets by segment were as follows:

	March 30, 2024		December 31, 2023
High Purity Cellulose	$	1,485,599	$	1,510,076
Paperboard	101,873		105,804
High-Yield Pulp	48,028		43,811
Corporate	499,546		523,009
Total assets	$	2,135,046	$	2,182,700

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Basis of Presentation (Details) $ in Thousands	3 Months Ended		12 Months Ended	36 Months Ended
	Mar. 30, 2024 USD ($)	Apr. 01, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	May 06, 2024 USD ($)	Apr. 29, 2024 USD ($) employee
Subsequent Event [Line Items]
Operating income (loss)	$ 17,075	$ 16,594
Duties receivable	$ 40,000
Temiscaming High Purity Cellulose Plant
Subsequent Event [Line Items]
Average annual maintenance capital expenditures				$ 15,000
Operating income (loss)			$ (60,000)
Asset impairment charge			25,000
Working capital			$ 31,000	$ 31,000
Subsequent Event | Disposal Group, Disposed of by Sale | Lumber and Newsprint Facilities
Subsequent Event [Line Items]
Consideration receivable					$ 39,000
Subsequent Event | Temiscaming High Purity Cellulose Plant
Subsequent Event [Line Items]
Number of employees layoffs expected | employee						275
One-time operating charges expected in current year						$ 30,000

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Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit loss	$ (736)	$ (653)
Accounts receivable, net	183,049	197,457
Accounts receivable, trade
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	152,938	166,137
Accounts receivable, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable, gross	$ 30,847	$ 31,973

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Inventory (Details) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Finished goods	$ 170,222	$ 147,930
Work-in-progress	5,157	6,987
Raw materials	47,014	46,120
Manufacturing and maintenance supplies	5,657	6,437
Inventory	$ 228,050	$ 207,474

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Leases - Narrative (Details)	3 Months Ended
	Mar. 30, 2024
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	12 years 7 months 6 days

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Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Leases [Abstract]
Operating lease cost	$ 1,710	$ 1,694
Finance lease cost
Amortization of ROU assets	106	99
Interest	23	30
Total lease cost	$ 1,839	$ 1,823

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Leases - Balance Sheet Components (Details) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Operating leases
ROU assets	$ 17,271	$ 17,475
Lease liabilities, current	4,793	4,499
Lease liabilities, non-current	$ 14,161	$ 14,666
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued and other current liabilities (Note 5)	Accrued and other current liabilities (Note 5)
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Finance leases
ROU assets	$ 986	$ 1,078
Lease liabilities	$ 1,250	$ 1,355
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant and equipment (net of accumulated depreciation of $1,824,097 and $1,797,529, respectively)	Property, plant and equipment (net of accumulated depreciation of $1,824,097 and $1,797,529, respectively)
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Long-term debt (Note 6)	Long-term debt (Note 6)

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Leases - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 31, 2023
Leases [Abstract]
Operating cash flows - cash paid for amounts included in the measurement of operating lease liabilities	$ 1,675	$ 1,581
Operating lease ROU assets obtained in exchange for lease liabilities	$ 1,194	$ (80)
Operating leases
Weighted average remaining lease term (in years)	5 years 3 months 18 days		5 years 6 months
Weighted average discount rate	8.30%		8.30%
Finance leases
Weighted average remaining lease term (in years)	2 years 7 months 6 days		2 years 9 months 18 days
Weighted average discount rate	7.00%		7.00%

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Leases - Lease Maturity (Details) $ in Thousands	Mar. 30, 2024 USD ($)
Leases [Abstract]
Remainder of 2024	$ 4,619
2025	5,509
2026	4,397
2027	3,305
2028	2,064
Thereafter	4,094
Total minimum lease payments	23,988
Less: imputed interest	(5,034)
Present value of future minimum lease payments	$ 18,954

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Accrued and Other Current Liabilities (Details) $ in Thousands, $ in Millions	Mar. 30, 2024 USD ($)	Mar. 30, 2024 CAD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 CAD ($)
Payables and Accruals [Abstract]
Accrued customer incentives	$ 33,792		$ 30,036
Accrued payroll and benefits	16,778		13,552
Accrued interest	16,491		32,256
Accrued income taxes	4,595		4,605
Accrued property and other taxes	4,596		2,547
Deferred revenue	23,781		24,061
Other current liabilities	41,875		47,431
Accrued and other current liabilities	141,908		154,488
CEWS applied for	18,000	$ 25	19,000	$ 25
Accrued energy payable	$ 14,000		$ 13,000

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Debt and Finance Leases - Summary of Debt (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Finance lease obligations	$ 1,250	$ 1,355
Total principal payments due	797,990	796,520
Less: unamortized premium, discount and issuance costs	(19,308)	(19,063)
Total debt	778,682	777,457
Less: debt due within one year	(23,056)	(25,283)
Long-term debt	755,626	752,174
Short-term factoring facility | Line of credit
Debt Instrument [Line Items]
Short-term debt, gross	3,493	5,292
Line of credit | ABL Credit Facility due December 2025: $131 million net availability, bearing interest of 7.42% (5.42% adjusted SOFR plus 2.00% margin) at March 30, 2024
Debt Instrument [Line Items]
Borrowing capacity available	$ 131,000
Interest rate	7.42%
Long-term debt, gross	$ 0	0
Line of credit | ABL Credit Facility due December 2025: $131 million net availability, bearing interest of 7.42% (5.42% adjusted SOFR plus 2.00% margin) at March 30, 2024 | SOFR
Debt Instrument [Line Items]
Variable rate	5.42%
Basis spread	2.00%
Secured Debt | Term Loan due July 2027: bearing interest of 13.30% (5.30% three-month Term SOFR plus 8.00% margin) at March 30, 2024
Debt Instrument [Line Items]
Interest rate	13.30%
Long-term debt, gross	$ 248,750	250,000
Secured Debt | Term Loan due July 2027: bearing interest of 13.30% (5.30% three-month Term SOFR plus 8.00% margin) at March 30, 2024 | SOFR
Debt Instrument [Line Items]
Variable rate	5.30%
Basis spread	8.00%
Senior Notes | 7.625% Senior Secured Notes due January 2026
Debt Instrument [Line Items]
Fixed interest rate	7.625%
Long-term debt, gross	$ 464,640	464,640
Loans | 5.50% CAD-based term loan due April 2028
Debt Instrument [Line Items]
Fixed interest rate	5.50%
Long-term debt, gross	$ 28,074	30,479
Loans | Other loans
Debt Instrument [Line Items]
Long-term debt, gross	$ 51,783	$ 44,754

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Debt and Finance Leases - Narrative (Details) - 2027 Term Loan - Secured Debt $ in Millions	Mar. 29, 2025	Dec. 31, 2024	Sep. 28, 2024	Jun. 29, 2024	Mar. 30, 2024 USD ($)	Jan. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Consolidated secured net leverage ratio, maximum before fee						4.50
Fee percentage						0.25%
Debt issuance fees						$ 3
Maximum consolidated secured net leverage ratio					5.25		5.25
Forecast
Debt Instrument [Line Items]
Maximum consolidated secured net leverage ratio	4.50	4.75	5.00	5.25
Selling, General and Administrative Expenses
Debt Instrument [Line Items]
Debt issuance fees							$ 1
Interest Expense
Debt Instrument [Line Items]
Debt issuance fees					$ 2

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Debt and Finance Leases - Schedule of Maturities of Long-term Debt (Details) $ in Thousands	Mar. 30, 2024 USD ($)
Debt Disclosure [Abstract]
Remainder of 2024	$ 18,713
2025	19,003
2026	483,691
2027	245,664
2028	9,967
Thereafter	19,702
Total debt principal payments	$ 796,740

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Environmental Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Dec. 31, 2023
Accrual for Environmental Loss Contingencies [Roll Forward]
Accrual for Environmental Loss Contingencies, Beginning Balance	$ 170,291
Increase in liabilities	653
Payments	(796)
Foreign currency adjustments	(108)
Balance at March 30, 2024	170,040
Less: current portion	$ (9,829)	$ (9,833)
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Less: current portion, Non-current environmental liabilities
Non-current environmental liabilities	$ 160,211	$ 160,458
Loss exposure in excess of accrual, high estimate	$ 85,000
Probable costs expected to be incurred, term	20 years

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Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed-rate long-term debt	$ 541,455	$ 536,393
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed-rate long-term debt	$ 501,587	$ 497,563

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Accumulated Other Comprehensive Loss (Details) - USD ($)	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 746,447,000	$ 829,313,000
Total other comprehensive income (loss)	(4,454,000)	4,140,000
Ending balance	741,750,000	831,429,000
Tax effects of foreign translation adjustment	0	0
Unrecognized components of employee benefit plans, net of tax
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(33,537,000)	(43,694,000)
Income tax on reclassifications	1,000	36,000
Total other comprehensive income (loss)	(14,000)	(127,000)
Ending balance	(33,551,000)	(43,821,000)
Amortization of gain
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassifications to earnings	(196,000)	(176,000)
Amortization of prior service cost
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Reclassifications to earnings	181,000	13,000
Unrealized loss on derivative instruments, net of tax
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(373,000)	(567,000)
Reclassifications to earnings	47,000	63,000
Income tax on reclassifications	(6,000)	(8,000)
Total other comprehensive income (loss)	41,000	55,000
Ending balance	(332,000)	(512,000)
Foreign currency translation
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(12,007,000)	(19,537,000)
Total other comprehensive income (loss)	(4,481,000)	4,212,000
Ending balance	(16,488,000)	(15,325,000)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(45,917,000)	(63,798,000)
Total other comprehensive income (loss)	(4,454,000)	4,140,000
Ending balance	$ (50,371,000)	$ (59,658,000)

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Earnings Per Common Share - Calculation of Earnings Per Share (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss) available for common stockholders (Basic)	$ (1,570)	$ 1,607
Net income (loss) available for common stockholders (Diluted)	$ (1,570)	$ 1,607
Shares used for determining basic earnings per share of common stock (in shares)	65,447,454	64,504,200
Dilutive effect of:
Shares used for determining diluted earnings per share of common stock (in shares)	65,447,454	66,596,653
Stock options
Dilutive effect of:
Incremental shares (in shares)	0	531
Performance and restricted stock
Dilutive effect of:
Incremental shares (in shares)	0	2,091,922

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Earnings Per Common Share - Anti-dilutive Securities Excluded from Computation (Details) - shares	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive instruments (in shares)	3,635,379	258,940
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive instruments (in shares)	0	162,171
Performance and restricted stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive instruments (in shares)	3,635,379	96,769

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Incentive Stock Plans - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Share-Based Payment Arrangement [Abstract]
Stock-based compensation expense	$ 1,780	$ 1,478

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Incentive Stock Plans - Narrative (Details) - shares	1 Months Ended	3 Months Ended
	Mar. 30, 2024	Mar. 30, 2024
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Performance-Based Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		3 years
Shares issued (in shares)	0
Performance-Based Stock Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target payout percentage		0.00%
Performance-Based Stock Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target payout percentage		200.00%

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Incentive Stock Plans - Schedule of Outstanding Awards (Details)	3 Months Ended
	Mar. 30, 2024 $ / shares shares
Options
Beginning Balance (in shares) | shares	46,798
Granted (in shares) | shares	0
Forfeited (in shares) | shares	0
Exercised or settled (in shares) | shares	0
Expired or cancelled (in shares) | shares	(46,798)
Ending Balance (in shares) | shares	0
Weighted Average Exercise Price
Beginning balance (in dollars per share) | $ / shares	$ 37.77
Granted (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	0
Exercised or settled (in dollars per share) | $ / shares	0
Expired or cancelled (in dollars per share) | $ / shares	29.52
Ending balance (in dollars per share) | $ / shares	$ 0
Restricted Stock Units
Awards
Beginning Balance (in shares) | shares	1,886,694
Granted (in shares) | shares	389,799
Forfeited (in shares) | shares	(41,348)
Exercised or settled (in shares) | shares	(245,389)
Expired or cancelled (in shares) | shares	0
Ending Balance (in shares) | shares	1,989,756
Weighted Average Grant Date Fair Value
Beginning balances (in dollars per share) | $ / shares	$ 6.01
Granted (in dollars per share) | $ / shares	3.79
Forfeited (in dollars per share) | $ / shares	5.17
Exercised or settled (in dollars per share) | $ / shares	10.52
Expired or cancelled (in dollars per share) | $ / shares	0
Ending balances (in dollars per share) | $ / shares	$ 5.04
Performance-Based Stock Units
Awards
Beginning Balance (in shares) | shares	1,370,601
Granted (in shares) | shares	568,812
Forfeited (in shares) | shares	(293,790)
Exercised or settled (in shares) | shares	0
Expired or cancelled (in shares) | shares	0
Ending Balance (in shares) | shares	1,645,623
Weighted Average Grant Date Fair Value
Beginning balances (in dollars per share) | $ / shares	$ 7.83
Granted (in dollars per share) | $ / shares	4.50
Forfeited (in dollars per share) | $ / shares	11.41
Exercised or settled (in dollars per share) | $ / shares	0
Expired or cancelled (in dollars per share) | $ / shares	0
Ending balances (in dollars per share) | $ / shares	$ 6.12

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Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Pension
Defined Benefit Plans Disclosure [Line Items]
Service cost	$ 1,537	$ 1,217
Interest cost	6,923	7,145
Expected return on plan assets	(8,076)	(7,922)
Amortization of prior service cost (credit)	205	37
Amortization of gain	(11)	(122)
Pension settlement loss	0	2,317
Net periodic benefit cost	578	2,672
Pension | Canada
Defined Benefit Plans Disclosure [Line Items]
Pension settlement loss		2,000
Postretirement
Defined Benefit Plans Disclosure [Line Items]
Service cost	138	287
Interest cost	248	357
Expected return on plan assets	0	0
Amortization of prior service cost (credit)	(24)	(24)
Amortization of gain	(185)	(54)
Pension settlement loss	0	0
Net periodic benefit cost	$ 177	$ 566

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Income Taxes - Effective Tax Rates (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Income Tax Disclosure [Abstract]
Loss before income taxes	$ (1,590)	$ (330)
Effective rate (percentage)	29.70%	783.60%

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Income Taxes - Narrative (Details) - Federal - Disallowed Interest Deductions - USD ($)	Mar. 30, 2024	Dec. 31, 2023
Income Tax Contingency [Line Items]
Deferred tax assets	$ 14,000,000	$ 15,000,000
Deferred tax asset, valuation allowance	$ 0	$ 0

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Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net sales	$ 387,656	$ 466,761
Operating income (loss)	17,075	16,594
Total assets	2,135,046		$ 2,182,700
Operating Segments | High Purity Cellulose
Segment Reporting Information [Line Items]
Net sales	306,808	374,194
Operating income (loss)	20,741	12,934
Total assets	1,485,599		1,510,076
Operating Segments | High Purity Cellulose | Cellulose Specialties
Segment Reporting Information [Line Items]
Net sales	194,423	226,665
Operating Segments | High Purity Cellulose | Commodity Products
Segment Reporting Information [Line Items]
Net sales	90,001	124,040
Operating Segments | High Purity Cellulose | Other
Segment Reporting Information [Line Items]
Net sales	22,384	23,489
Operating Segments | Paperboard
Segment Reporting Information [Line Items]
Net sales	52,960	58,994
Operating income (loss)	7,909	9,734
Total assets	101,873		105,804
Operating Segments | High-Yield Pulp
Segment Reporting Information [Line Items]
Net sales	34,326	41,860
Operating income (loss)	(671)	7,256
Total assets	48,028		43,811
Eliminations
Segment Reporting Information [Line Items]
Net sales	(6,438)	(8,287)
Corporate
Segment Reporting Information [Line Items]
Operating income (loss)	(10,904)	$ (13,330)
Total assets	$ 499,546		$ 523,009

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Commitments and Contingencies - Litigation and Contingencies (Details) $ in Millions	3 Months Ended
	Mar. 30, 2024 USD ($)	May 06, 2024 USD ($)	Aug. 31, 2021 USD ($) mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of lumber mills | mill			6
Duties receivable	$ 40
Discontinued Operations, Disposed of by Sale | Lumber and Newsprint Facilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rights to duty refunds			$ 112
Ancillary fees			$ 1
Disposal Group, Held-for-sale | Lumber and Newsprint Facilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest earned	$ 10
Disposal Group, Disposed of by Sale | Lumber and Newsprint Facilities | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration receivable		$ 39

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Commitments and Contingencies - Guarantees and Other (Details) $ in Millions	May 08, 2024 employee	Mar. 30, 2024 USD ($)
Guarantor Obligations [Line Items]
Letters of credit		$ 34
Subsequent Event
Guarantor Obligations [Line Items]
Number of unionized employees, covered under expired contract | employee	235
LignoTech Florida
Guarantor Obligations [Line Items]
Ownership percentage		45.00%
Borregaard ASA | LignoTech Florida
Guarantor Obligations [Line Items]
Ownership percentage		55.00%
Surety Bond
Guarantor Obligations [Line Items]
Guarantees		$ 89
Contract Guarantee | LignoTech Florida
Guarantor Obligations [Line Items]
Guarantees		$ 30