ASCENT INDUSTRIES CO.

United States

Securities and Exchange Commission

Washington, D. C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a)

of the Securities Exchange Act of 1934 (Amendment No.__)

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20 N. Martingale Rd, Suite 430

Schaumburg, Illinois 60173

April 30, 2026

Dear Fellow Shareholder:

You are cordially invited to virtually attend our Annual Meeting of Shareholders (including any adjournments or postponements thereof, the “Annual Meeting”) on June 10, 2026, which will be held in a virtual meeting format only via live audio webcast. Included with this letter are the notice of annual meeting of shareholders, a proxy statement detailing the business to be conducted at the Annual Meeting, and a proxy card. You may also find electronic copies of these documents online atwww.proxyvote.com.

Regardless of whether you plan to attend our virtual Annual Meeting, it is important that your voice be heard. We encourage you to vote in advance of the meeting by telephone, by Internet or by signing, dating and returning your proxy card by mail. You may also vote by attending the virtual annual meeting at www.virtualshareholdermeeting.com/ACNT2026 and voting online. Full instructions are contained in the proxy statement and in the enclosed proxy card.

Sincerely,

Ben Rosenzweig

Chairman of the Board of Directors

20 N. Martingale Rd, Suite 430

Schaumburg, Illinois 60173

Notice of 2026 Annual Meeting of Shareholders

The 2026 Annual Meeting of Shareholders (2026 Annual Meeting) of Ascent Industries Co. (Company) will be a virtual meeting conducted exclusively via live webcast at www.virtualshareholdermeeting.com/ACNT2026 on Wednesday, June 10, 2026, at 9:00 a.m. ET. To access this website and enter the meeting, you must have your control number available.

Matters to be voted on at the 2026 Annual Meeting are as follows:

1. Election of the seven director nominees named in this Proxy Statement.

2. Approval, on a non-binding advisory basis, of the compensation of our named executive officers (say-on-pay).

3. Ratification of the appointment of Baker Tilly US, LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2026.

4. Consideration of other business properly presented at the meeting.

All of the above matters are more fully described in the accompanying Proxy Statement.

We are providing our proxy materials to our shareholders electronically again this year unless they previously requested to receive hard copies. Therefore, most of our shareholders will only receive a Notice of Internet Availability of Proxy Materials (Notice) containing instructions on how to access the proxy materials electronically and to vote. Electronic delivery allows the Company to provide you with the information you need for the 2026 Annual Meeting while reducing costs. Shareholders can request a paper copy of the proxy materials by following the instructions included on the Notice. Proxy materials will be made available to shareholders electronically on or around April 30, 2026 or mailed on or around the same date to those shareholders who have previously requested printed materials.

Record Date: You can attend the meeting online at www.virtualshareholdermeeting.com/ACNT2026 and vote if you were a shareholder of record at the close of business on April 16, 2026.

Proxy Voting: Each share of Ascent common stock is entitled to one vote on each matter properly brought before the meeting. Please vote by proxy as soon as possible. Your vote is very important to us, and we want your shares to be represented at the meeting.

Dated April 30, 2026

By order of the Board of Directors

Kimberly Portnoy, Corporate Secretary

2026 Proxy Statement

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