Plastiq SPAC Presentation Deck

Adjusted EBITDA Reconciliation - historic & projected P&L Net Loss Interest Expense Depreciation and Amortization EBITDA Stock-based compensation¹ Internal-use software² Retention and severance Other non-recurring charges³ Adjusted EBITDA IQ 2020 ($33.7M) 0.4M 1.2M ($32.1M) 3. 2.4M (1.3M) ($31.0M) 2021 ($55.9M) 1.4M 1.9M ($52.6M) 3.6M (5.2M) ($54.2M) 2022E ($63.5M) 1.2M 3.6M ($58.7M) 4.5M (7.7M) 4.7M 7.0M ($50.2M) 2023E ($37.7M) 1.0M 3.6M ($33.1M) 3.4M (2.0M) 1.5M ($30.2M) Source: Plastiq management 1. Stock-based compensation reflects expenses related to stock option awards issued to employees and certain non-employee directors and expenses related to secondary transactions. The fair value of stock options under our equity plans in determined on the date of grant utilizing the Black-Scholes option pricing model, which is impacted by the fair value of our common stock, as well as other inputs. These inputs include the expected common stock price volatility over the term of the awards, the expected term of the awards, risk-free interest rates, and expected dividend yield. Stock-based compensation expense for stock-based awards is recognized on a straight-line basis over the period during which an award holder is required to provide services in exchange for the award (generally the vesting period of the award). The company accounts for forfeitures as they occur. 2. Internal-use software reflects capitalized costs to develop internal-use software when preliminary efforts are successfully completed, management ahs authorized and committed project funding, it is probable that the project will be completed, and the software will be used as intended. Internal-use software expense is amortized on a straight-line basis over the estimated useful life of three years. Reflects one-time expenses related to becoming a public company. 29

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