On October 7, 2013, Minerals Technologies Inc. (the "Company") entered into a Note Purchase Agreement (the "Note Purchase Agreement") with New York Life Insurance Company, New York Life Insurance And Annuity Corporation, New York Life Insurance And Annuity Corporation Institutionally Owned Life Insurance Separate Account (BOLI 30c), Forethought Life Insurance Company, Prudential Retirement Insurance And Annuity Company, Prudential Arizona Reinsurance Captive Company, Physicians Mutual Insurance Company, The Prudential Insurance Company of America, Prudential Retirement Insurance And Annuity Company, United of Omaha Life Insurance Company and Great-West Life & Annuity Insurance Company (the "Purchasers"). For more information about the Note Purchase Agreement, see the disclosure under Item 2.03 of this Current Report on Form 8-K, which disclosure is incorporated herein by reference.

In connection with the Note Purchase Agreement discussed in Item 1.01 above, on October 7, 2013, the Company issued and sold to the Purchasers in a private placement $75 million aggregate principal amount of senior unsecured notes, consisting of (a) $30,000,000 aggregate principal amount of 3.46% Senior Notes, Series A, due October 7, 2020 (the "Series A Notes") and (b) $45,000,000 aggregate principal amount of 4.13% Senior Notes, Series B, due October 7, 2023 (the "Series B Notes" and, together with the Series A Notes, the "Notes").  The Company has used the proceeds of the Notes to repay its $75 million aggregate principal amount obligation under its senior unsecured notes due October 5, 2013.

The Series A Notes bear interest at the rate of 3.46% per annum and the Series B Notes bear interest at the rate of 4.13% per annum, each payable semiannually in arrears on the seventh day of each April and October commencing on April 7, 2014, until the principal has become due and payable. The Series A Notes mature on October 7, 2020 and the Series B Notes mature on October 7, 2023.

The Notes are senior unsecured obligations of the Company and are subject to prepayment only with respect to a required offer to prepay the Notes in the event of a change of control of the Company or certain sales, leases or other dispositions of a substantial part of the assets of the Company or any restricted subsidiary, at 100% of the principal amount to be prepaid plus accrued interest.  Prepayments, at the option of the Company, in accordance with the terms of the Note Purchase Agreement, are at 100% of the principal amount to be prepaid plus accrued interest and a Make-Whole Amount (as defined in the Note Purchase Agreement), if any, with respect to the Notes at the time of prepayment.

The terms of the Note Purchase Agreement include customary events of default.  If an event of default under the Note Purchase Agreement occurs resulting from bankruptcy or other insolvency events, all Notes will automatically become immediately due and payable.  If any other event of default under the Note Purchase Agreement occurs, the Required Holders (as defined in the Note Purchase Agreement) may at any time at their option, among other things, declare all Notes then outstanding to be immediately due and payable.

The Note Purchase Agreement contains a covenant by the Company to not permit, at any time, its consolidated debt to exceed 60% of its consolidated total capitalization. The Note Purchase Agreement also contains other customary affirmative and negative covenants and customary representations and warranties.

The above description of the Note Purchase Agreement is qualified in its entirety by reference to the complete text of the Note Purchase Agreement, a copy of which is filed as Exhibit 10.1 to this Current Report on Form 8-K, and is incorporated herein by reference.