6.Long-Term Debt

Our long-term debt consists of the following:

​

​

Senior Sustainability-Linked Notes

Our Notes are due April 1, 2026. The Notes are unsecured and effectively subordinated to the Credit Facility to the extent of the value of the collateral securing the Credit Facility (see below). The Notes are guaranteed on a senior unsecured basis by our wholly-owned subsidiaries. Interest on the Notes is payable on April 1 and October 1 of each year. We may redeem all or part of the Notes at any time on or after April 1, 2023 at redemption prices ranging from 103.8125% on or after April 1, 2023 to 100% on or after April 1, 2025. In addition, on or before April 1, 2023, we may redeem up to 40% of the aggregate principal amount of the Notes with the net cash proceeds of certain equity offerings, if certain conditions are met, at a redemption price of 107.625% of the principal amount of the Notes, plus accrued interest. At any time prior to April 1, 2023, we may also redeem the Notes, in whole or in part, at a price equal to 100% of the principal amount of the Notes plus a “make-whole” premium. If we undergo a change of control, we may be required to repurchase all or a portion of the Notes at a price equal to 101% of the principal amount of the Notes, plus accrued interest.

Certain of these redemption prices are subject to increase if we fail to satisfy the Sustainability Performance Target (as defined in the indenture governing the Notes and referred to herein as “SPT”) and provide notice of such satisfaction to the trustee. From and including the interest period ending on October 1, 2023, the interest rate will be increased by 25 basis points to 7.875% per annum unless we notify the trustee for the Notes at least 30 days prior to April 1, 2023 that, for the year ending December 31, 2022: (i) the SPT has been satisfied and (ii) the satisfaction of the SPT has been confirmed in accordance with customary procedures.

Credit Facility

Our Restated Credit Agreement provides for, among other things, (i) commitments of $200.0 million, (ii) a maturity date of April 1, 2025, (iii) loans made under the Credit Facility and unused commitment fees to be determined based on a leverage ratio ranging from 3.00:1.00 to 4.50:1.00, (iv) a $75.0 million incremental revolving facility, which will be on the same terms as under the Credit Facility, (v) a leverage ratio covenant which comprises a maximum total funded debt to EBITDA ratio, net of $40.0 million of unrestricted cash and cash equivalents if the facility is drawn, and net of all unrestricted cash and cash equivalents if the facility is undrawn, (vi) a leverage ratio covenant test level which is currently 4.50 to 1.00 and (vii) a secured leverage covenant of 2.50 to 1.00.

As of March 31, 2022 and December 31, 2021, we had no outstanding borrowings under the Credit Facility, $0.15 million in letters of credit outstanding and $200.0 million in revolving commitments available.

The Credit Facility is secured by all the real and material personal property owned by Solaris LLC or any of its subsidiaries, other than certain excluded assets. At March 31, 2022, we were in compliance with all covenants contained in the Credit Facility.