Minerals Technologies Inc. — uk mti tax policy (company IR deck)

Minerals Technologies Inc. (MTX) · 2 slides · Filed Oct 23, 2026

Every slide of this earnings presentation, with the text as published. Open the original deck ↗ · All MTX deck slides

Slide 1 — Policy Statement

Policy Statement December 2021 1 United Kingdom MTI Tax Policy This policy applies to all UK affiliated entities in the company group which is owned by the ultimate parent company Minerals Technologies Inc. (“We” or “us” or “the Company”). See Appendix A for a complete list of UK affiliated entities. This policy covers our approach to arranging our own tax affairs. Our tax policy comprises five key components: 1. Commitment to compliance We are committed to compliance with tax law and practice in the UK to pay the fairest tax cost supportable by legal compliance. Compliance for us means paying the right amount of tax in the right place at the right time according to UK tax law. It involves disclosing all relevant facts and circumstances to the tax authorities and claiming reliefs and incentives where available. 2. Responsible attitude to arranging our tax affairs In structuring our commercial activities, we will consider – among other factors – the tax laws of the countries in which we operate, with a view to maximizing value on a sustainable basis for our shareholders, customers, and employees. We will engage in planning which has tax mitigation as one of a number of elements and will do so in a way that is wholly compliant with legislation and aligned with the group risk profile. 3. Effective risk management Given the scale of our business and volume of tax obligations, risks will inevitably arise from time to time in relation to the interpretation of complex tax law and nature of our compliance arrangements. We actively seek to identify, evaluate, monitor, manage, and minimize these risks to ensure they remain in line with our business objectives. Where there is significant uncertainty or complexity in relation to a risk, external advice may be sought, particularly in relation to our international tax obligations. The group board has the ultimate ownership of tax matters risk, with operational responsibility being delegated to group tax department and local finance team. 4. Constructive approach to engaging with HMRC We engage with HMRC with honesty, integrity, respect, and fairness. While we do not intend to take positions on tax matters that may create reputational risk for the Company or jeopardize our existing good standing with taxing authorities, we do, however, always first seek to resolve any disputed matters through active and transparent discussion but are prepared to litigate where we disagree with a ruling or decision of a tax authority as being contrary to published law.

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Slide 2 — Policy Statement

Policy Statement December 2021 2 5. Board ownership and oversight This tax policy is aligned with our Ethics Code and is approved and owned by the Chief Executive Officer and overseen by the Board of Directors. Minerals Technologies Inc. regards this publication as complying with the duty under para 16(2) and para 25(1), Sch 19 FA16. Appendix A List of UK Affiliates Subject to This Tax Policy Statement Each of the UK affiliates shown below are 100% owned, directly or indirectly, by Minerals Technologies Inc., a U.S. publicly traded company. Name UTR Unique Taxpayer Ref # CRN CO REG # Active entities Top Co AMCOL (Holdings) Limited 24100 21022 00849299 AMCOL Minerals EU Limited 21950 07733 04374403 AMCOL Minerals Europe Limited 15260 08264 02347184 CETCO (Europe) Limited 23411 43393 03092362 Top Co CETCO Energy Services Limited 93965 10669 07277274 Minteq UK Limited 32150 42478 02123886 Top Co MTI Technologies UK Limited 15655 12000 09182620 Dormant entities Top Co Minerals Technologies Holdings Limited 16745 36133 02748456 Specialty Minerals UK Limited 22150 42474 02581196

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