BreachCensus

Minerals Technologies Inc.

ManufacturingUnited States of America

Minerals Technologies Inc. is a manufacturing organisation in California. It appears on the Massachusetts Attorney General breach-notification register and the California Attorney General breach-notification register with 1 confirmed incident (2 filings); the most recent notice was filed on November 30, 2020.

LEI
549300D3I1QU67GP6403

Data as of September 6, 2026.

Confirmed incident

Filed in CA and MA

The same incident was filed separately with 2 jurisdictions within a few days of each other (CA and MA) — shown here as one incident.

Occurred
October 20, 2020
Disclosed
November 30, 2020

Timeline

  1. November 30, 2020
    Reported to regulator Regulator

    CA AG breach notification: an unknown number of California residents affected

    source
  2. November 30, 2020
    Reported to regulator Regulator

    MA AG breach notification: 760 Massachusetts residents affected

    source
What a California notice means

Governed by Cal. Civ. Code §1798.82. A copy of the notification must be sent to the Attorney General when a single breach requires notifying more than 500 California residents.

Note: no affected-count is published on this register.

California breach-notification register ↗

What a Massachusetts notice means

Governed by M.G.L. c. 93H. Notice to the Attorney General is required for a breach affecting any number of Massachusetts residents' personal information -- the statute sets no minimum count.

Note: the count is Massachusetts residents only, not a total.

Massachusetts breach-notification register ↗