LSB Industries, Inc. and each of the company's subsidiaries signatory thereto entered into the Third Amended and Restated Loan and Security Agreement (the Amendment), with the lenders identified on the signature pages thereof and Wells Fargo Capital Finance, LLC (Wells Fargo), as the arranger and administrative agent. The Amendment, which is dated effective as of January 17, 2017, amends and restates the company's existing working capital revolver. The company and all of the company's existing subsidiaries, other than Zena Energy LLC, are co-borrowers under the Working Capital Revolver. The total revolver commitments as of the closing date are equal to $50 million. Interest accrues on outstanding borrowings under the Working Capital Revolver at a rate equal to, at the company's election, either LIBOR for an interest period selected by the Company plus an applicable margin equal to 1.50% per annum or 1.75% per annum, depending on borrowing availability under the Working Capital Revolver or Wells Fargo's prime rate plus an applicable margin equal to 0.50% per annum or 0.75% per annum, depending on borrowing availability under the Working Capital Revolver. In addition, unused line fees in an amount equal to 0.25% per annum on the average daily balance of the unused revolver commitments under the Working Capital Revolver are payable by the company, as well as customary fees in respect of letters of credit. Advances under the Working Capital Revolver are based on specified percentages of eligible accounts receivable and inventories. The Working Capital Revolver provides for a subfacility for the issuances of up to letters of credit in an aggregate amount not to exceed to $10 million, with the outstanding amount of any such letters of credit reducing availability for borrowings under the Working Capital Revolver. The maturity date of the Working Capital Revolver is January 17, 2022, with a springing earlier maturity date that is 90 days prior to the maturity date of the Company's existing senior notes to the extent the Senior Notes are not refinanced or repaid prior to the Springing Maturity Date. The Working Capital Revolver does not include any amortization, and all borrowings under the Working Capital Revolver are due on the relevant maturity date.