The Revolving Credit Facility matures on November 9, 2026. The Revolving Credit Facility includes a $20.0 million swingline sub-facility and a $25.0 million letter of credit sub-facility. The Revolving Credit Facility allows Perimeter Holdings to increase commitments under the Revolving Credit Facility up to an aggregate amount not to exceed the greater of (i) $143.0 million and (ii) 100.00% of consolidated earnings before interest, taxes, depreciation and amortization (“EBITDA”) for the most recent four-quarter period (minus the aggregate outstanding principal amount of certain ratio debt permitted to be incurred thereunder). All borrowings under the Revolving Credit Facility are subject to the satisfaction of customary conditions, including the absence of a default and the accuracy of representations and warranties, subject to customary exceptions.

Borrowings under the Revolving Credit Facility bear interest at a rate equal to (i) an applicable margin, plus (ii) at Perimeter Holdings option, either (x) Secured Overnight Financing Rate for the applicable corresponding tenor (“Term SOFR”) as published by CME Group Benchmark Administration, adjusted for certain additional costs or (y) a base rate determined by reference to the highest of (a) the prime commercial lending rate published by the Wall Street Journal, (b)

the federal funds rate plus 0.50%, (c) the one-month Term SOFR rate plus 1.00% and (d) a minimum floor of 1.00%. The applicable margin is 3.25% in the case of Term SOFR-based loans and 2.25% in the case of base rate-based loans, with two step downs of 0.25% each based upon the achievement of certain leverage ratios.

Solely to the extent that on the last day of the applicable fiscal quarter, the utilization of the Revolving Credit Facility (excluding cash collateralized letters of credit and up to $10.0 million of undrawn letters of credit) exceeds 40.00% of the aggregate commitments, the Revolving Credit Facility requires compliance on a quarterly basis with a maximum secured net leverage ratio of 7.50:1.00.

The Revolving Credit Facility is fully and unconditionally guaranteed by the Company and each of Perimeter Holdings’ existing and future wholly-owned material restricted subsidiaries, subject to customary exceptions, and is secured by a first priority lien, subject to certain permitted liens, on substantially all of Perimeter Holdings’ and each of the guarantors’ existing and future property and assets, subject to customary exceptions.

Deferred financing costs incurred in connection with securing the Revolving Credit Facility are carried as a long-term asset and are amortized on a straight-line over the term of the Revolving Credit Facility and included in interest expense in the accompanying condensed consolidated statements of operations and comprehensive (loss) income.

Perimeter Holdings has $675.0 million principal amount of 5.00% senior secured notes due October 30, 2029 (“Senior Notes”). The Senior Notes bear interest at an annual rate of 5.00%. Interest on the Senior Notes is payable in cash semi-annually in arrears on April 30 and October 30 of each year.

The Senior Notes are general, secured, senior obligations of Perimeter Holdings; rank equally in right of payment with all existing and future senior indebtedness of Perimeter Holdings (including, without limitation, the Revolving Credit Facility); and together with the Revolving Credit Facility, are effectively senior to all existing and future indebtedness of Perimeter Holdings that is not secured by the collateral. The Senior Notes are fully and unconditionally guaranteed on a senior secured basis, jointly and severally, by all of Perimeter Holdings’ existing or future restricted subsidiaries (other than certain excluded subsidiaries) that guarantee the Revolving Credit Facility. The Senior Notes contain certain covenants limiting Perimeter Holdings’ ability and the ability of the restricted subsidiaries (as defined in the indenture governing the Senior Notes) to, under certain circumstances, prepay subordinated indebtedness, pay distributions, redeem stock or make certain restricted investments; incur indebtedness; create liens on the Perimeter Holdings assets to secure debt; restrict dividends, distributions or other payments; enter into transactions with affiliates; designate subsidiaries as unrestricted subsidiaries; sell or otherwise transfer or dispose of assets, including equity interests of restricted subsidiaries; effect a consolidation or merger; and change the Company’s line of business. As of June 30, 2025, the Company was in compliance with all covenants.

Deferred financing costs incurred in connection with securing the Senior Notes were capitalized and are amortized using the effective interest method over the term of the Senior Notes and included in interest expense in the accompanying condensed consolidated statements of operations and comprehensive (loss) income. The unamortized portion of the deferred financing costs is included as a reduction to the carrying value of the Senior Notes which have been recorded as long-term debt, net in the accompanying condensed consolidated balance sheets.

The Company’s Certificate of Incorporation authorizes the issuance of 20 million shares of Preferred Stock which are entitled to a preferred annual cumulative right to a dividend equal to 6.50% of its nominal value. The preferred dividend will be paid 40.00% in cash and 60.00% in kind each year within three business days following the Company's annual meeting. Holders of the Preferred Stock have no voting rights (only protective rights). As of June 30, 2025, the Company had issued 10 million shares of Preferred Stock, par value $0.0001 per share, stated value $100.0 million.

Due to the fact that the shares of Preferred Stock are mandatorily redeemable, the shares of Preferred Stock are classified as a liability on the accompanying condensed consolidated balance sheets, and $1.8 million and $3.7 million of dividends on these shares of Preferred Stock were recorded as interest expense for the three and six months ended June 30, 2025, respectively, and $1.8 million and $3.5 million were recorded as interest expense for the three and six months ended June 30, 2024, respectively, in the accompanying condensed consolidated statements of operations and comprehensive (loss) income. Preferred dividends in arrears were $15.0 million and $12.8 million at June 30, 2025 and December 31, 2024, respectively.

The shares of Preferred Stock have an aggregate liquidation preference of $100.0 million, plus any accrued and unpaid dividends thereon and are senior to the Company's Common Stock with respect to dividends and with respect to dissolution, liquidation or winding up of the Company. At June 30, 2025 and December 31, 2024, the redemption price was $115.0 million and $112.8 million, respectively.