Minerals Technologies Inc. · NYSE:MTX

Minerals Technologies — Technical Presentation (September 2025)

20 slides from Minerals Technologies's technical presentation, Sep 17, 2025

  1. Slide 1: PFAS Remediation Technology: FLUORO-SORB Adsorbent

    PFAS Remediation Technology: FLUORO-SORB® Adsorbent September 17th, 2025 © 2024 Minerals Technologies Inc. All Rights Reserved.

  2. Slide 2: Forward Looking Statements and Non-GAAP Measures

    Forward Looking Statements and Non-GAAP Measures This presentation may contain "forward‐looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements provide current expectations and forecasts of future events such as new products, revenue

  3. Slide 3: A Well-Balanced Portfolio Positioned for Growth

    A Well-Balanced Portfolio Positioned for Growth $2.1B ~4,000 34 12 Countries R&D Centers CONSUMER Net Sales Employees ENGINEERED Sales* $1.1B $1.0B Sales* & SPECIALTIES SOLUTIONS Functional components in a variety of consumer and industrial goods Designed to improve our customers’ manufacturing proc

  4. Slide 4: PFAS Remediation Technology: Recent Developments

    Water and Remediation PFAS Remediation Technology: FLUORO-SORB® Adsorbent Recent Developments Market Dynamics • Global issue impacting all regions of the world EPA National Drinking Water • Global regulatory community has begun to promulgate regulations Regulation for 2 PFAS • Public interest and li

  5. Slide 5: Particle Surface Modification

    Particle Surface Modification Unique bentonite properties: • Contains montmorillonite platelets • Each platelet is 1 nanometer thick and thousands of nanometers long and wide • Platelets have very high surface area (800 m2/gram) • Platelet surface is negatively charged – edges are positively charged

  6. Slide 6: PFAS Adsorption Mechanism

    PFAS Adsorption Mechanism FLUORO-SORB ® BENTONITE ADSORBENT FLUORO-SORB ® Platelet + PFAS Molecule + + Increasing adsorption of PFAS Surface Active Agents MTI US Patent 11,000,822 Source: Yan, B., Wang, J., Liu, J. (2021) Water Research, 201, 117371. 6

  7. Slide 7: FLUORO-SORB Adsorbent Value Proposition

    FLUORO-SORB® Adsorbent Value Proposition Operating Efficiency and Capacity Kinetics and Footprint Media Carbon Ion Exchange FLUORO-SORB® Contact time with 10 minutes 2 minutes 2 minutes 5X FLUORO-SORB® media bed* ION EXCHANGE MEDIA LIFE / CHANGEOUT FREQUENCY PERFORMANCE + 3X CARBON VS. 1X ADSORBENT

  8. Slide 8: Particle Surface Modification: Product Variants

    Particle Surface Modification Unique capability to design properties for versatile applications FLUORO-SORB® 100 FLUORO-SORB® 200 FLUORO-SORB® P ADSORBENT ADSORBENT ADSORBENT SUBSURFACE INJECTION SUBSURFACE INJECTION DRINKING WATER FILTRATION WATER PRE-TREATMENT SOIL REMEDIATION (MIXING) GROUNDWATER

  9. Slide 9: FLUORO-SORB Adsorbent Versatility of Deployment

    FLUORO-SORB® Adsorbent Versatility of Deployment Technology designed to selectively adsorb PFAS from water and sediments FLUORO-SORB® Adsorbent interacts with PFAS, thus spread of contamination is controlled Engineered manufacturing capabilities allow product variations resulting in enhanced versati

  10. Slide 10: Case Histories

    FLUORO-SORB® Adsorbent CASE HISTORIES

  11. Slide 11: FLUORO-SORB Adsorbent – Drinking Water Successes

    FLUORO-SORB® Adsorbent – Drinking Water Successes Examples of Full-Scale Drinking Water Systems Using FLUORO-SORB® Region Treatment Plants Northeast 7 Systems Mid Atlantic 4 Systems Midwest 1 System Mountain West 1 System 0.3 MGD* System 0.9 MGD* System Pacific Coast 2 Systems Southeast 2 Systems •

  12. Slide 12: Surface Water Plant (New Jersey)

    SURFACE WATER PLANT (NEW JERSEY) • A ~130 MGD surface water treatment plant installed FLUORO-SORB® Adsorbent for removal of PFAS • Small-scale piloting showed the life span of FLUORO-SORB® Adsorbent could be a strong economic choice • 178 tons of FLUORO-SORB® Adsorbent were installed into one of the

  13. Slide 13: Selfridge Air Force Base (Michigan)

    SELFRIDGE AIR FORCE BASE (MICHIGAN) • High PFOS soil contamination from prior use of aqueous film forming foam (AFFF) • FLUORO-SORB® Adsorbent was deployed over 8-acres to prevent leaching into groundwater • Dosage of 0.5 – 1% FLUORO-SORB® Adsorbent mixed with soil • PFOS leaching reduced by 95 – 10

  14. Slide 14: Wright Patterson Air Force Base (Ohio)

    WRIGHT PATTERSON AIR FORCE BASE (OHIO) Groundwater Capture Trench Filtration Basin with FLUORO-SORB® Adsorbent • The base has selected FLUORO-SORB® Adsorbent at two of the sites deemed most contaminated • FLUORO-SORB® Adsorbent reduces their batch treatment time from 3-4 hours to 15 minutes • >30 mi

  15. Slide 15: Ellsworth Air Force Base (South Dakota)

    ELLSWORTH AIR FORCE BASE (SOUTH DAKOTA) • High PFAS concentrations observed in surface water due to groundwater upwelling • A REACTIVE CORE MAT® containing FLUORO-SORB® Adsorbent (400 x 15 ft) was placed along the stream • Measurements were made quarterly over 2 years showing significantly reduced d

  16. Slide 16: Canadian Dept of National Defense Base

    CANADIAN DEPT OF NATIONAL DEFENSE BASE Photos by QM Environmental • 22,100 tons of PFAS-impacted soil was stabilized with FLUORO-SORB® Adsorbent • Post monitoring shows PFAS leaching reduced over 2 orders of magnitude meeting their remedial goals • Significant unseasonal rainfall during remediation

  17. Slide 17: Canadian Dept of National Defense / U.S. Injection Site

    CANADIAN DEPT OF NATIONAL DEFENSE U.S. INJECTION SITE • Subsurface injection of FLUORO-SORB® Adsorbent was used at a • First injection in the Canadian DND base in Alberta, Canada U.S. has now been completed • Significant reduction of PFAS was measured without disrupting groundwater flow • Second inj

  18. Slide 18: Confidential Landfill Site USA

    CONFIDENTIAL LANDFILL SITE USA • Treatment of landfill leachate was required at a site with total PFAS exceeding 50,000 ppt • Piloting >1 year decreased PFAS to goal levels showing FLUORO-SORB® Adsorbent as a strong economic choice • A vessel purification system containing FLUORO-SORB® Adsorbent was

  19. Slide 19: FLUORO-SORB Adsorbent Well-Positioned Proven Technology

    FLUORO-SORB® Adsorbent Well-Positioned Proven Technology Versatility of Deployment Commercial Verticals Global Footprint Demonstrated Cost Effectiveness DRINKING REMEDIATION Outperforms Other Solutions WATER Full-Scale Deployments Patented LANDFILL WASTEWATER Mineral Reserves Coupled with LEACHATE P

  20. Slide 20: PFAS Remediation Technology: FLUORO-SORB Adsorbent

    PFAS Remediation Technology: FLUORO-SORB® Adsorbent 20

Minerals Technologies — Technical Presentation (September 2025) on 6ix