CECO ENVIRONMENTAL CORP Debt Disclosure

Scheduled principal payments under the Credit Facility and joint venture term debt are $1.9 million in 2026, and $3.9 million in 2027. The remaining $208.6 million will be paid upon maturity in 2029.

Credit Facility

On December 17, 2021, the Company entered into Amendment No. 2 to the Second Amended and Restated Credit Agreement. This agreement amended and restated the Company’s prior credit agreement. Pursuant to this amendment, the lenders provided a term loan in the aggregate principal amount of $44.1 million and a senior secured revolving credit commitment up to an aggregate principal amount of $140.0 million. This revolving credit commitment allowed the Company the ability to borrow loans denominated in different currencies. Additionally, the agreement extended the maturity date to December 17, 2026, replaced LIBOR interest with

Secured Overnight Financing Rate ("SOFR") interest for USD loans, Sterling Overnight Interbank Average Rate ("SONIA") for GBP loans, and Canadian Dollar Offered Rate ("CDOR") for CAD loans, and redefined certain financial covenants.

On October 30, 2023, the Company entered into Amendment No. 4 to the Second Amended and Restated Credit Agreement ("the Second Credit Agreement"). Pursuant to this amendment, the lenders provided an additional term loan in the aggregate principal amount of $75.0 million, which was subsequently used to repay a portion of the outstanding balance on the revolving credit loan. At the Company’s option, revolving loans and the term loans accrued interest at a per annum rate based on (a) either the highest of (i) the federal funds rate plus 0.5%, or (ii) the prime lending rate of the Agent (as defined in the Second Credit Agreement), (b) Daily Simple SOFR plus the Daily Simple SOFR Adjustment of 0.11% plus 1.0%, (c) 1.0%, plus a margin ranging from 1.75% to 3.25% depending on the Company’s Consolidated Leverage Ratio, or (d) a one/three/six-month Term SOFR Rate (as defined in the Second Credit Agreement) plus the Term SOFR Adjustment ranging from 0.11% to 0.43% plus 1.75% to 3.25% depending on the Company’s Consolidated Leverage Ratio. Interest on swing line loans is the Base Rate. Interest on Base Rate loans was payable quarterly in arrears on the last day of each calendar quarter and at maturity. Interest on Term SOFR rate loans was payable on the last date of each applicable Interest Period (as defined in the Second Credit Agreement), but in no event less than once every three months and at maturity.

On October 7, 2024, the Company entered into the Third Amended and Restated Credit Agreement (the “Third Credit Agreement”). The Third Credit Agreement provided for a senior secured revolving credit facility in an initial aggregate principal amount of up to $400.0 million (the "Credit Facility”). At the Company’s option, the Company may increase the aggregate principal amount of the Credit Facility from time to time by an additional aggregate principal amount of up to (a) $125.0 million plus (b) such additional amount, if any, as would not cause the Consolidated Secured Net Leverage Ratio (as defined in the Third Credit Agreement) to exceed 3.00 to 1.00 after giving pro forma effect to such increased amount, in additional revolving credit and/or one or more tranches of term loans, subject to certain conditions, including the consent of the Agent and any increasing or additional lenders.

The Credit Facility was due to mature on October 7, 2029. The Credit Facility accrued interest (a) with respect to base rate loans, at an annual rate equal to an applicable rate of between 0.75% and 2.25% (fluctuating based on the Company’s Consolidated Net Leverage Ratio), plus a rate equal to the highest of (1) the Agent’s prime rate, (2) the federal funds rate plus one-half of 1.00%, (3) Daily Simple SOFR (as defined in the Third Credit Agreement) plus 1.00% and (4) 1.00%, (b) for all other loans, at an annual rate equal to an applicable rate of between 1.75% and 3.25% (fluctuating based on the Company’s Consolidated Net Leverage Ratio), plus a rate determined based on the denominated currency and, as applicable pursuant to the Amended Credit Agreement, whether the Company has elected for interest on such loans to accrue at a daily rate or a term rate: (a) for term rate loans, if denominated (1) in U.S. Dollars, Term SOFR (as defined in the Third Credit Agreement inclusive of a 0.10% per annum adjustment), (2) in euros, EURIBOR, (3) in Canadian dollars, the Term CORRA Rate (as defined in the Third Credit Agreement) plus 0.29547% for a one-month interest period and 0.32138% for a three-month interest period or (4) in a currency other than (1)-(3), the rate per annum as designated with respect to such currency at the time such currency was approved by the Agent and the other Lenders or, if such rate is unavailable on any date of determination for any reason, a comparable or successor rate approved by the Agent, and (b) for daily rate loans, if denominated (1) in U.S. dollars, Daily Simple SOFR (as defined in the Third Credit Agreement inclusive of a 0.10% per annum adjustment), (2) in pounds sterling, a rate per annum equal to SONIA (as defined in the Third Credit Agreement) plus 0.0326% per annum or (3) in a currency other than (1) or (2), the rate per annum as designated with respect to such currency at the time such currency was approved by the Agent and the other Lenders or, if such rate is unavailable on any date of determination for any reason, a comparable or successor rate approved by the Agent.

With respect to financial covenants, the Company was required to maintain a Consolidated Net Leverage Ratio not greater than 4.00 to 1.00 and a Consolidated Secured Net Leverage Ratio (as defined in the Credit Agreement) not greater than 3.00 to 1.00, in each case as of the last day of each fiscal quarter of the Company. At the election of the Company and subject to certain restrictions contained in the Credit Agreement, following the occurrence of a Permitted Acquisition (as defined in the Third Credit Agreement) involving aggregate consideration of $15.0 million or more, such maximum Consolidated Net Leverage Ratio and Consolidated Secured Net Leverage Ratio may have been increased to 4.50 to 1.00 and 3.50 to 1.00, respectively, for the fiscal quarter in which such Permitted Acquisition is consummated and the subsequent three fiscal quarters of the Company. In the first quarter of 2025, the Company entered into an Elevated Ratio Period resulting in a maximum Consolidated Net Leverage Ratio of 4.50 and Consolidated Secured Net Leverage Ratio of 3.50. This Elevated Ratio was in effect for two quarters, after which the Consolidated Net Leverage Ratio reverted to 4.00 and the Consolidated Secured Net Leverage Ratio reverted to 3.00. The Company was also required to maintain a Consolidated Fixed Charge Coverage Ratio (as defined in the Credit Agreement) as of the last day of each fiscal quarter of the Company of not less than 1.25 to 1.00.

On January 30, 2026, the Company entered into the Fourth Amended and Restated Credit Agreement (the “Fourth Credit Agreement”), among the Company, its subsidiaries from time to time party thereto, the lenders from time to time party thereto (the “Lenders”), and Bank of America, N.A., as administrative agent (the “Agent”), which amended and restated in its entirety the Company’s Third Amended and Restated Credit Agreement, dated as of October 7, 2024, among the Company, its subsidiaries from

time to time party thereto, the lenders from time to time party thereto and the Agent. The Credit Agreement provides for a senior secured revolving credit facility in an initial aggregate principal amount of up to $700.0 million (the “Amended Credit Facility”). At the Company’s option, the Company may increase the aggregate principal amount of the Amended Credit Facility from time to time by an additional aggregate principal amount of up to (a) $150.0 million plus (b) such additional amount, if any, as would not cause the Consolidated Net Leverage Ratio (as defined in the Fourth Credit Agreement) to exceed 3.50 to 1.00 after giving pro forma effect to such increased amount, in additional revolving credit and/or one or more tranches of term loans, subject to certain conditions, including the consent of the Agent and any increasing or additional lenders.

The Credit Facility will mature on January 30, 2031. The Credit Facility will accrue interest (a) with respect to base rate loans, at an annual rate equal to an applicable rate of between 0.50% and 2.00% (fluctuating based on the Company’s Consolidated Net Leverage Ratio), plus a rate equal to the highest of (1) the Agent’s prime rate, (2) the federal funds rate plus one-half of 1.00%, (3) Daily Simple SOFR (as defined in the Fourth Credit Agreement) plus 1.00% and (4) 1.00%, (b) for all other loans, at an annual rate equal to an applicable rate of between 1.50% and 3.00% (fluctuating based on the Company’s Consolidated Net Leverage Ratio), plus a rate determined based on the denominated currency and, as applicable pursuant to the Fourth Credit Agreement, whether the Company has elected for interest on such loans to accrue at a daily rate or a term rate: (a) for term rate loans, if denominated (1) in U.S. Dollars, Term SOFR (as defined in the Fourth Credit Agreement), (2) in euros, EURIBOR, (3) in Canadian dollars, the Term CORRA Rate (as defined in the Fourth Credit Agreement) plus 0.29547% for a one-month interest period and 0.32138% for a three-month interest period or (4) in a currency other than (1)-(3), the rate per annum as designated with respect to such currency at the time such currency was approved by the Agent and the other Lenders or, if such rate is unavailable on any date of determination for any reason, a comparable or successor rate approved by the Agent, and (b) for daily rate loans, if denominated (1) in U.S. dollars, Daily Simple SOFR (as defined in the Fourth Credit Agreement), (2) in pounds sterling, a rate per annum equal to SONIA (as defined in the Fourth Credit Agreement) plus 0.0326% per annum or (3) in a currency other than (1) or (2), the rate per annum as designated with respect to such currency at the time such currency was approved by the Agent and the other Lenders or, if such rate is unavailable on any date of determination for any reason, a comparable or successor rate approved by the Agent.

With respect to financial covenants, the Company is required to maintain a Consolidated Net Leverage Ratio not greater than 4.00 to 1.00 and a Consolidated Secured Net Leverage Ratio (as defined in the Fourth Credit Agreement) not greater than 3.50 to 1.00, in each case as of the last day of each fiscal quarter of the Company. At the election of the Company and subject to certain restrictions contained in the Fourth Credit Agreement, following the occurrence of one or more Permitted Acquisitions (as defined in the Fourth Credit Agreement) involving aggregate consideration of $40.0 million or more during any contiguous 90-day period, such maximum Consolidated Net Leverage Ratio and Consolidated Secured Net Leverage Ratio may be increased to 4.50 to 1.00 and 4.00 to 1.00, respectively, for the fiscal quarter in which the Permitted Acquisition resulting in the aggregate consideration for all Permitted Acquisitions consummated during such contiguous 90-day period equaling or exceeding $40.0 million is consummated and the subsequent three fiscal quarters of the Company. The Company is also required to maintain a Consolidated Fixed Charge Coverage Ratio (as defined in the Fourth Credit Agreement) as of the last day of each fiscal quarter of the Company of not less than 1.25 to 1.00.

As of December 31, 2025 and 2024, $23.8 million and $18.9 million of letters of credit were outstanding, respectively. Total unused credit availability under the Company’s senior secured term loan and senior secured revolver loan with sub-facilities for letters of credit, swing-line loans and senior secured multi-currency loans was $167.6 million and $166.9 million at December 31, 2025 and 2024, respectively.

The weighted average stated interest rate on outstanding borrowings was 6.41% and 7.07% at December 31, 2025 and 2024, respectively. The effective interest rate was 7.06% and 7.82% at December 31, 2025 and 2024, respectively.

The Company has granted a security interest in substantially all of its assets to secure its obligations pursuant to the Credit Facility. The Company’s obligations under the Credit Facility are guaranteed by the Company’s U.S. subsidiaries and such guaranty obligations are secured by a security interest on substantially all the assets of such subsidiaries, including certain real property. The Company’s obligations under the Credit Agreement may also be guaranteed by the Company’s material foreign subsidiaries to the extent no adverse tax consequences would result to the Company.

In connection with the Credit Facility, the Company paid $0.8 million in customary closing fees during 2021, and $0.4 million in customary closing fees during 2023, that were deferred and classified as a debt discount, as a result of the associated amendments being accounted for as debt modifications. In 2024, $0.1 million of loss on extinguishments of debt was recorded related to the Third Credit Agreement. The remaining amount continues to be deferred and classified as a debt discount, along with $1.8 million in customary closing fees incurred during 2024, as these amounts relate to portions of the Third Credit Agreement accounted for as debt modifications.

As of December 31, 2025 and 2024, the Company was in compliance with all related financial and other restrictive covenants under the Credit Facility.

Foreign Debt

The Company has a number of bank guarantee facilities and bilateral lines of credit in various foreign countries currently supported by cash, letters of credit or pledged assets and collateral under the Credit Facility. The Credit Facility allows letters of credit and bank guarantee issuances of up to $120.0 million from the bilateral lines of credit secured by pledged assets and collateral under the Credit Facility. As of December 31, 2025 and 2024, $41.6 million and $45.9 million in bank guarantees were outstanding, respectively, inclusive of $1.1 million and $2.1 million in outstanding bank guarantees as of December 31, 2025 and 2024, respectively, under a Euro-denominated bank guarantee agreement held by a subsidiary of the Company located in the Netherlands and secured by local assets, as well as $1.9 million and $2.1 million in outstanding bank guarantees as of December 31, 2025 and 2024, respectively, under Yuan-denominated bank guarantee agreements held by a subsidiary of the Company located in China and secured by local assets. As of December 31, 2025, the borrowers of these facilities and agreements were in compliance with all related financial and other restrictive covenants.

Joint Venture Debt

On March 7, 2022, the Company's Pinnacle Processes Inc. (formerly known as Effox-Flextor-Mader, Inc.) joint venture ("PPI JV") entered into a loan agreement secured by the assets of the PPI JV in the aggregate principal amount of $11.0 million for the acquisition of General Rubber, LLC, as further described in Note 14. As of December 31, 2025 and 2024, $5.6 million and $7.3 million was outstanding under the loan. Principal will be paid back to the lender monthly with the final installment due by February 27, 2027. Interest is accrued at the per annum rate based on PPI JV's choice of the 1/3/6 month Term SOFR rate plus 3.25%, with a floor rate of 3.75%. Interest is paid monthly on the last day of each month. The interest rate was 7.27% and 7.96% at December 31, 2025 and 2024, respectively. As of December 31, 2025, the PPI JV was in compliance with all related financial and other restrictive covenants under this loan agreement. This loan balance does not impact the Company’s borrowing capacity or the financial covenants under the Credit Facility.

As of December 31, 2025, there were $20.7 million in current assets (including $1.9 million of cash, $10.4 million of accounts receivable, and $4.3 million of inventories), $24.4 million in long-lived assets (including $23.9 million of goodwill and intangible assets), and $14.2 million in total liabilities (including $5.6 million of debt and $4.9 million of accounts payable and accrued expenses) related to the PPI JV included in the Consolidated Balance Sheets. As of December 31, 2024, there were $16.2 million in current assets (including $2.9 million of cash, $7.9 million of accounts receivable, and $3.9 million of inventories), $25.4 million in long-lived assets (including $24.8 million of goodwill and intangible assets), and $14.0 million in total liabilities (including $7.3 million of debt and $4.1 million of accounts payable and accrued expenses) related to the PPI JV included in the Consolidated Balance Sheets.

For the years ended December 31, 2025, 2024, and 2023, PPI JV accounted for $54.6 million, $47.0 million, and $37.7 million in revenue, respectively. For the years ended December 31, 2025, 2024, and 2023, PPI JV accounted for $7.8 million, $4.1 million, and $4.2 million in net income, respectively.