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EX-99.1

2 exhibit99q12026prearningsm.htm

EX-99.1

Document

Exhibit 99.1

News Release

ADVANSIX ANNOUNCES FIRST QUARTER 2026 FINANCIAL RESULTS

1Q26 Sales of $404 million, up 7% versus prior year

1Q26 Earnings Per Share of ($0.58); Adjusted Earnings Per Share of ($0.50)

1Q26 Cash Flow from Operations of ($15) million

Evaluating Expansion of Integrated Ammonia Platform to Meet Growing Regional Demand for Diesel Exhaust Fluid (DEF)

Appointed Patrick Day as SVP and CFO, effective April 27th

Parsippany, N.J., May 8, 2026 - AdvanSix (NYSE: ASIX), a vertically integrated chemistry company serving diverse end markets, today announced its financial results for the first quarter ending March 31, 2026. Overall, the Company navigated a dynamic market environment while progressing on key growth, cost savings and strategic initiatives.

First Quarter 2026 Summary

"The AdvanSix team delivered a solid first quarter performance consistent with our expectations while navigating a number of headwinds, including the early quarter winter storm-related impacts and new geopolitical challenges amid continued subdued industrial end market demand,” said Erin Kane, president and CEO of AdvanSix. "We generated 7% sales growth year-over-year, supported by improvements in Chemical Intermediates volume and Plant Nutrients market pricing, partially offsetting the margin impacts driven by increased sulfur and natural gas costs. We remain well positioned to serve our customers across our diversified portfolio including fertilizer as the domestic planting season progresses, in chemical intermediates amid a tightening acetone global supply and demand environment, and across a modestly recovering nylon industry supporting expected meaningful sequential performance improvement into the second quarter."

Summary first quarter 2026 financial results for the Company are included below:

1

($ in Thousands, Except Earnings Per Share)

1Q 2026

1Q 2025 (1)

Sales$404,183$377,791

Net Income (loss)(15,546)23,344

Diluted Earnings Per Share(0.58)0.86

Adjusted Diluted Earnings Per Share (2) (0.50)0.93

Adjusted EBITDA (2) 4,75651,626

Adjusted EBITDA Margin % (2) 1.2%13.7%

Cash Flow from Operations(15,332)11,443

Capital Expenditures35,93634,062

Free Cash Flow (2)(3) (51,268)(22,619)

(1) 1Q 2025 includes ~$26 million pre-tax income benefit from insurance proceeds reflected in Cost of Goods Sold

(2) See “Non-GAAP Measures” included in this press release for non-GAAP reconciliations

(3) Net cash provided by operating activities less capital expenditures

Sales of $404 million in the quarter increased approximately 7% versus the prior year comprised of 6% volume growth and 1% favorable price. Sales volume growth was primarily driven by favorable Chemical Intermediates sales. Market-based pricing improved by 3% primarily driven by an increase in Plant Nutrients reflecting higher nitrogen pricing amid increased sulfur input costs. Raw material pass-through pricing was down 2% following a net cost decrease in benzene and propylene (inputs to cumene which is a key feedstock to our products).

Sales by product line and approximate percentage of total sales are included below:

($ in Thousands)1Q 20261Q 2025

Sales % of TotalSales% of Total

Nylon$88,467 22%$88,369 23%

Caprolactam67,768 17%67,432 18%

Plant Nutrients140,635 35%128,240 34%

Chemical Intermediates107,313 26%93,750 25%

Total$404,183 100%$377,791 100%

Adjusted EBITDA of $4.8 million in the quarter decreased $46.9 million versus the prior year primarily driven by the absence of $26 million of prior year insurance proceeds, the unfavorable impact of higher sulfur and natural gas raw material prices, and higher plant costs primarily driven by utilities costs and $11 million of winter storm impact.

Adjusted earnings per share of ($0.50) decreased $1.43 versus the prior year driven primarily by the factors discussed above.

Cash flow from operations of ($15.3) million in the quarter decreased $26.8 million versus the prior year

2

primarily due to lower net income including the impact of insurance proceeds, partially offset by net changes in working capital. Capital expenditures of $35.9 million in the quarter increased $1.9 million versus the prior year, as expected.

Outlook

•Anticipate balanced U.S. ammonium sulfate supply and demand fundamentals in heart of domestic planting season amid meaningfully higher sulfur input costs

•Acetone spread over propylene costs expected to hold near cycle averages for the full year 2026

•Continue to optimize Nylon Solutions production output, inventories and sales volume mix in extended soft industrial end market environment

•Continue to expect Capital Expenditures of $75 to $95 million in 2026 versus approximately $116 million in 2025, reflecting risk-based prioritization of base investments and enterprise programs with continued progression of growth programs including SUSTAIN

•Now expect pre-tax income impact of plant turnarounds to be $17 t

asix-202602200001673985false00016739852026-02-202026-02-20

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 20, 2026

ADVANSIX INC.

(Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation)

1-37774 (Commission File Number)

81-2525089 (I.R.S. Employer Identification No.)

300 Kimball Drive, Suite 101 Parsippany, New Jersey 07054 (Address of principal executive offices)

Registrant’s telephone number, including area code: (973) 526-1800

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $0.01 per shareASIXNew York Stock Exchange

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

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

ITEM 2.02    Results of Operations and Financial Condition.

On February 20, 2026, AdvanSix Inc. (the "Company") issued a press release announcing its financial results for the quarter and full year ended December 31, 2025. A copy of the press release is furnished herewith as Exhibit 99.1.

ITEM 8.01    Other Events.

Dividend

On February 20, 2026, the Company announced that its Board of Directors declared a cash dividend of $0.16 per share on the Company's common stock. The dividend will be paid on March 23, 2026 to stockholders of record as of the close of business on March 9, 2026.

The Company's announcement of the dividend is included in the press release furnished herewith as Exhibit 99.1.

ITEM 9.01     Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number

Description

99.1

Press Release dated February 20, 2026

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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

Date: February 20, 2026

AdvanSix Inc.

By:/s/ Achilles B. Kintiroglou

Name:Achilles B. Kintiroglou

Title:Senior Vice President, General Counsel and Corporate Secretary