Line of credit: The Company has an Asset Based Lending Credit Agreement (“Credit Agreement”) with PNC Bank, National Association (“PNC”). Under the Credit Agreement, the Company has available a revolving credit facility in the amount of $103,500 thousand, for working capital needs and general corporate purposes. The amount the Company may borrow is limited to the lesser of the maximum available amount and the borrowing base. The borrowing base is calculated primarily as a percentage of the Company’s eligible accounts receivable, unbilled revenue and eligible inventory, as defined in the Credit Agreement. Interest on the outstanding principal amount, payable in arrears monthly, is based on either an elected Base Rate plus an applicable margin (6.25% at July 2, 2022), or an adjusted Eurodollar rate, plus an applicable margin, as defined in the agreement. On January 28, 2022, the Company executed an amendment to the Credit Agreement to temporarily increase the maximum availability of the revolving credit facility to the amount of $115,000 thousand until February 15, 2022. On February 14, 2022, the maximum availability was automatically reduced to the amount of $103,500 thousand. In connection with the Business Combination, on February 14, 2022, the Company repaid $73,000 thousand of debt associated with the line of credit. There was $25,384 thousand available under this facility as of July 2, 2022. The entire unpaid principal amount of the line of credit together with accrued and unpaid interest thereon, is due on July 17, 2025. Standby letters of credit totaling $5,031 thousand and $3,977 thousand, issued for our insurance carriers and in support of performance under certain contracts, were outstanding under the Credit Agreement as of July 2, 2022 and December 31, 2021, respectively.
On May 13, 2022, the Company executed an amendment to the Credit Agreement that extended the maturity date by two years from July 18, 2023 to July 17, 2025 and clarified certain provisions to exclude the payment of the earn-out obligations made in February 2022 from the proceeds from the Business Combination in the calculation of the Consolidated Fixed Charges Coverage Ratio.
Term loan: The Company has a Senior Secured Term Credit and Guaranty Agreement (“Term Loan”) with Citibank as the administrative agent for $380,000 thousand. The Term Loan interest is payable either monthly or quarterly, in arrears, based on the Company’s interest election. The Company may elect either a Base Rate plus an applicable rate (10.00% at July 2, 2022), or an adjusted Eurodollar rate, plus an applicable rate (8.54% at July 2, 2022), as defined in the agreement. On a quarterly basis, the Company is required to make principal payments of $2,391 thousand with all unpaid principal and interest due at maturity on July 17, 2025. The Term Loan agreement requires an excess cash calculation, as defined in the agreement, which could result in additional required principal payments on the loan. There were no excess cash principal payments due July 2, 2022.
The obligations of QualTek under the Credit Agreement are secured (a) on a first priority basis, by liens on the ABL Priority Collateral as defined in the ABL Intercreditor Agreement (“Intercreditor Agreement”), dated as of July 18, 2018 between QualTek HoldCo and among PNC Bank and Fifth Third Bank, including accounts receivable and inventory and (b) on a second priority basis, by liens on the Term Priority Collateral, as defined in the Intercreditor Agreement.
As a result of the Intercreditor Agreement, the obligations of QualTek under the Term Loan are secured (a) on a first priority basis, by liens on the Term Priority Collateral and (b) on a second priority basis, by liens on the ABL Priority Collateral. Generally, Term Priority Collateral includes all assets, other than the ABL Priority Collateral, and equity interests of QualTek.
Acquisition debt: Acquisition debt consists of deferred purchase price due to the sellers from in the Recovery Logistics, Inc., Vertical Limit LLC, Vinculums Services, LLC, and Concurrent acquisitions. The interest rates range between .44% and 3.25%. For the three months ended July 2, 2022 and July 3, 2021, the Company recorded $0 thousand and $270 thousand of interest expense, respectively. The Company recorded $434 thousand and $363 thousand of interest expense for six months ended July 2, 2022, and July 3, 2021, respectively. The acquisition debt was paid in full with proceeds from the Business Combination on February 14, 2022 (see Note 1 - Nature of Business and Summary of Significant Accounting Policies).
Senior Unsecured Convertible Notes: In connection with the Business Combination, on February 14, 2022, the Company entered into an Indenture with Wilmington Trust, National Association (the “Trustee”) where the Company has issued senior unsecured convertible notes (the “Convertible Notes”) due February 15, 2027, in an aggregate principal amount of $124,685 thousand, receiving $122,191 thousand in net cash proceeds. The Convertible Notes have an original issue discount of $2,494 thousand. Further, $6,384 thousand in debt issuance costs were incurred. The total of $8,878 thousand recorded as debt discount is being amortized using the effective interest method through the maturity dates of the Convertible Notes. The Convertible Notes provide for an interest rate that is set quarterly based on gross leverage with a minimum interest rate of 9.50% per annum and up to a maximum of 11.75% per annum, with an additional interest of 2% per annum upon the occurrence of an event of default (as defined in the Indenture). Interest is payable on a quarterly basis commencing on June 15, 2022. For the three and six months ended July 2, 2022, the Company recorded interest expense of $3,703 thousand and $5,616 thousand, respectively. As of July 2, 2022, the Convertible Notes are presented net of a debt discount of $8,212