Form 8-K

8-K — MINERALS TECHNOLOGIES INC

Accession: 0000950157-26-001054

Filed: 2026-10-01

Period: 2026-10-01

CIK: 0000891014

SIC: 2810 (INDUSTRIAL INORGANIC CHEMICALS)

Item: Other Events

Item: Financial Statements and Exhibits

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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):

October 1, 2026

MINERALS TECHNOLOGIES INC.

(Exact name of registrant as specified in its charter)

Delaware

001-11430

25-1190717

(State or other jurisdiction of incorporation)

(Commission File Number)

(I.R.S. Employer Identification Number)

622 Third Avenue, New York, NY

10017-6707

(Address of principal executive offices)

(Zip code)

(212) 878-1800

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended

to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐

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

☐

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

☐

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

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section

12(b) of the Act:

Title of each

class

Trading symbol(s)

Name of each

exchange on which registered

Common Stock, $0.10 par value

MTX

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth

company as defined in Rule 405 of the Securities Act of 1933 (§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 8.01.

Other Events.

Announcement of Notes Offering

On October 1, 2026, Minerals Technologies Inc. (the “Company”)

issued a press release announcing the commencement of a private offering of senior notes (the “Notes”) in a transaction exempt

from registration under the Securities Act of 1933, as amended (the “Securities Act”), a copy of which is attached hereto

as Exhibit 99.1 and is incorporated herein by reference.

The Notes and the related guarantees have not been

registered under the Securities Act or the securities laws of any other jurisdiction and may not be offered or sold in the United States

absent registration or an applicable exemption from the registration requirements of the Securities Act and applicable state laws.

This current report does not constitute an offer

to sell or a solicitation of an offer to buy the securities, nor shall there be any sale of the securities in any state or jurisdiction

in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such

state or jurisdiction.

Forward-Looking Statements

This current report contains “forward-looking

statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the offering

and the intended use of the proceeds thereof. Forward-looking statements provide current expectations and forecasts of future events such

as new products, revenues, and financial performance, and are not limited to describing historical or current facts. They can be identified

by the use of words such as “outlook,” “forecast,” “believes,” “expects,” “plans,”

“intends,” “anticipates,” and other words and phrases of similar meaning. Forward-looking statements are necessarily

based on assumptions, estimates, and limited information available at the time they are made. A broad variety of risks and uncertainties,

both known and unknown, as well as the inaccuracy of assumptions and estimates, can affect the realization of the expectations or forecasts

in these statements. Many of these risks and uncertainties are difficult to predict or are beyond the Company’s control. Consequently,

no forward-looking statement can be guaranteed. Actual future results may vary materially. Significant factors that could affect the expectations

and forecasts include worldwide general economic, business, and industry conditions; the cyclicality of our customers’ businesses

and their changing regional demands; our ability to compete in very competitive industries; consolidation in customer industries, principally

paper, foundry, and steel; our ability to renew or extend long term sales contracts for our satellite operations; our ability to generate

cash to service our debt; our ability to comply with the covenants in the agreements governing our debt; our ability to effectively achieve

and implement our growth initiatives or consummate the transactions described in the statements; our ability to successfully develop new

products; our ability to defend our intellectual property; the increased risks of doing business abroad including with respect to changes

in tariffs; the availability of raw materials and access to ore reserves at our mining operations, or increases in costs of raw materials,

energy, or shipping; compliance with or changes to regulation in the areas of environmental, health, and safety, and tax; risks and uncertainties

related to the voluntary petitions for relief under Chapter 11 of the U.S. Bankruptcy Code filed by our subsidiaries BMI OldCo Inc. (f/k/a

Barretts Minerals Inc.) and Barretts Ventures Texas LLC; claims for legal, environmental, and tax matters or product stewardship issues;

operating risks and capacity limitations affecting our production facilities; seasonality of some of our businesses; cybersecurity and

other threats relating to our information technology systems; and other risk factors and cautionary statements in our 2025 Annual Report

on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and other reports filed with the Securities and Exchange Commission.

The forward-looking statements contained in this current report speak only as of the date of this current report. The Company undertakes

no obligation to publicly update any forward-looking statement, whether as a result of new information, future events, or otherwise. The

Company may not consummate the offering and, if the offering is consummated, the Company cannot provide any assurances regarding the final

terms of the offering.

Item 9.01.

Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.

Description

99.1

Press Release dated October 1, 2026

104

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

SIGNATURES

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.

DATED: October 1, 2026

Minerals Technologies Inc.

(Registrant)

By:

/s/ Timothy J. Jordan

Name:

Timothy J. Jordan

Title:

Vice President, General Counsel, Secretary and Chief Compliance Officer

EX-99.1 — PRESS RELEASE

EX-99.1

Filename: ex99-1.htm · Sequence: 2

Exhibit

99.1

News Release

Minerals Technologies Inc. Announces Private Offering of $400 Million of Senior Notes

NEW YORK, Oct. 1, 2026 (GLOBE NEWSWIRE) -- Minerals Technologies

Inc. (NYSE: MTX) (“MTI”), a leading, technology-driven specialty minerals company, today announced the commencement of a

private offering (the “Offering”) of $400 million aggregate principal amount of senior notes due 2034 (the

“Notes”), subject to market and other conditions.

MTI intends to use the net proceeds from the Offering, together with

cash on hand, (i) to redeem all of its outstanding 5.000% senior notes due 2028 (the “2028 Notes”) and (ii) to pay

transaction fees and expenses related to the Offering and the concurrent amendment and extension of its revolving credit facility.

This press release does not constitute a notice of redemption and does not constitute an offer to redeem or purchase, or the

solicitation of an offer to sell, any of the 2028 Notes.

The Notes and the guarantees thereof will be offered in a private

offering exempt from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”). The

Notes and the guarantees thereof will be offered only to persons reasonably believed to be qualified institutional buyers

pursuant to Rule 144A under the Securities Act and to non-U.S. persons outside the United States in reliance on Regulation S under

the Securities Act.

The Notes and the guarantees thereof have not been registered under

the Securities Act and may not be offered or sold in the United States absent registration or an applicable exemption from the registration

requirements of the Securities Act and applicable state laws.

This press release does not constitute an offer to sell, or the solicitation

of an offer to buy, the Notes, nor shall there be any sale of the Notes in any state or jurisdiction in which such offer, solicitation,

or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. No assurance

can be made that the Offering will be consummated on its proposed terms or at all.

FORWARD-LOOKING STATEMENTS

This press release contains “forward-looking statements”

within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the Offering and the intended

use of the proceeds thereof. Forward-looking statements provide current expectations and forecasts of future events such as new products,

revenues, and financial performance, and are not limited to describing historical or current facts. They can be identified by the use

of words such as “outlook,” “forecast,” “believes,” “expects,” “plans,” “intends,”

“anticipates,” and other words and phrases of similar meaning. Forward-looking statements are necessarily based on assumptions,

estimates, and limited information available at the time they are made. A broad variety of risks and uncertainties, both known and unknown,

as well as the inaccuracy of assumptions and estimates, can affect the realization of the expectations or forecasts in these statements.

Many of these risks and uncertainties are difficult to predict or are beyond the Company’s control. Consequently, no forward-looking

statement can be guaranteed. Actual future results may vary materially. Significant factors that could affect the expectations and forecasts

include worldwide general economic, business, and industry conditions; the cyclicality of our customers’ businesses and their changing

regional demands; our ability to compete in very competitive industries; consolidation in customer industries, principally paper, foundry,

and steel; our ability to renew or extend long term sales contracts for our satellite operations; our ability to generate cash to service

our debt; our ability to comply with the covenants in the agreements governing our debt; our ability to effectively achieve and implement

our growth initiatives or consummate the transactions described in the statements; our ability to successfully develop new products; our

ability to defend our intellectual property; the increased risks of doing business abroad including with respect to changes in tariffs;

the availability of raw materials and access to ore reserves at our mining operations, or increases in costs of raw materials, energy,

or shipping; compliance with or changes to regulation in the areas of environmental, health, and safety, and tax; risks and uncertainties

related to the voluntary petitions for relief under Chapter 11 of the U.S. Bankruptcy Code filed by our subsidiaries BMI OldCo Inc. (f/k/a

Barretts Minerals Inc.) and Barretts Ventures Texas LLC; claims for legal, environmental, and tax matters or product stewardship issues;

operating risks and capacity limitations affecting our production facilities; seasonality of some of our businesses; cybersecurity and

other threats relating to our information technology systems; and other risk factors and cautionary statements in our 2025 Annual Report

on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and other reports filed with the Securities and Exchange Commission.

The forward-looking statements contained in this press release speak only as of the date of this press release. The Company undertakes

no obligation to publicly update any forward-looking statement, whether as a result of new information, future events, or otherwise. The

Company may not consummate the Offering and, if the Offering is consummated, the Company cannot provide any assurances regarding the final

terms of the Offering or its ability to effectively apply the net proceeds as described above.

About Minerals Technologies Inc.

Minerals Technologies Inc. (NYSE: MTX) is a global, technology-driven

specialty minerals company that sources, manufactures, sells, and distributes a wide range of minerals and mineral-based products and

services. We utilize our global mineral reserves, combined with our core technologies and applications, to deliver innovative products

that are an essential part of everyday life. We serve customers in consumer and industrial markets worldwide, and have 4,000 employees

in 34 countries.

Investor Relations Contact

Lydia Kopylova

lydia.kopylova@mineralstech.com

Media Contact

Stephanie Heise

stephanie.heise@mineralstech.com

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