HYZN 2023 Proxy Statement

DCRB Founder Warrant Agreement Concurrently with the consummation of the business combination with DCRB (the “Business Combination”) and the execution and delivery of the Business Combination Agreement and Plan of Reorganization, dated as of February 8, 2021 (the “Business Combination Agreement”), DCRB, DCRB’s Sponsor, WRG, and DCRB’s independent directors (the “DCRB Founders Warrant Parties”) entered into an agreement pursuant to which they agreed that: • The DCRB Founders Warrant Parties shall not, with respect to an aggregate of 4,885,875 private placement warrants (or shares of Class A Common Stock issued upon exercise of private placement warrants), (a)(i) sell or assign, offer to sell, contract or agree to sell, hypothecate, pledge, grant any option to purchase or otherwise dispose of, (ii) agree to dispose of, directly or indirectly, or (iii) establish or increase a “put equivalent position” or liquidation with respect to or decrease of a “call equivalent position” within the meaning of Section 16 of the Securities and Exchange Act of 1934 (the “Exchange Act”) and the rules and regulations of the SEC promulgated thereunder with respect to, in each case (i), (ii) and (iii), any security, (b) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any security, whether any such transaction is to be settled by delivery of such securities, in cash or otherwise, or (c) publicly announce any intention to effect any transaction specified in clause (a) or (b), until the earlier of (i) one year after the Closing and (ii) subsequent to the Closing, (x) the date on which the last sale price of the Class A Common Stock quoted on Nasdaq (or the exchange on which the shares of DCRB Class A Common Stock are then listed) equals or exceeds $11.50 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period or (y) the date on which DCRB completes a liquidation, merger, capital stock exchange, reorganization or other similar transaction that results in the holders of DCRB Class A Common Stock having the right to exchange their shares of Class A Common Stock for cash, securities or other property; • Upon and subject to the Closing, an aggregate of 814,313 private placement warrants (the “$12.00 Warrants”) became subject to potential forfeiture, and each DCRB Founders Warrant Party agreed not to exercise such $12.00 Warrants, unless and until a $12.00 Triggering Event (as defined below) occurs. Prior to the occurrence of a $12.00 Triggering Event, each DCRB Founders Warrant Party shall not Transfer any of the $12.00 Warrants. In the event no $12.00 Triggering Event occurs during the five-year period commencing on the one-year anniversary of the Closing (the “Earnout Period”), the $12.00 Warrants shall immediately be forfeited to Hyzon for no consideration as a contribution to the capital of Hyzon and immediately cancelled. The term “$12.00 Triggering Event” means the occurrence of a date on which the last reported sales price of one share of Class A Common Stock quoted on Nasdaq (or the exchange on which the shares of Class A Common Stock are then listed) is greater than or equal to $12.00 (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30 consecutive trading day period within the Earnout Period; provided, that, if, during the Earnout Period, there is a change of control pursuant to which the holders of Class A Common Stock have the right to receive consideration implying a value of Class A Common Stock (as determined in good faith by the Board) of (i) less than $12.00 (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like), then the $12.00 Warrants shall immediately be forfeited to us for no consideration and immediately cancelled; or (ii) greater than or equal to $12.00 (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like), then the $12.00 Triggering Event shall be deemed to have occurred. • Upon and subject to the Closing, an aggregate of 814,312 private placement warrants (the “$14.00 Warrants”) became subject to potential forfeiture, and each DCRB Founders Warrant Party agreed not to exercise such $14.00 Warrants, unless and until a $14.00 Triggering Event (as defined below) occurs. Prior to the occurrence of a $14.00 Triggering Event, each DCRB Founders Warrant Party shall not transfer any of the $14.00 Warrants. In the event no $14.00 Triggering Event occurs during the Earnout Period, the $14.00 Warrants shall immediately be forfeited to Hyzon for no consideration as a contribution to the capital of Hyzon and immediately cancelled. “$14.00 Triggering Event” means the occurrence of a date on which the last reported sales price of one share of Class A Common Stock quoted on Nasdaq (or the exchange on which the shares of Class A Common Stock are then listed) is greater than or equal to $14.00 (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30 consecutive trading day period within the Earnout Period; provided, that, if, during the Earnout Period, there is a change of control pursuant to which the holders of Class A Common Stock have the right to receive consideration implying a value of Class A Common Stock (as determined in good faith by the Board) (i) less than $14.00 (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like), then the $14.00 Warrants shall immediately be forfeited to us for no consideration and immediately cancelled; or (ii) of greater than or equal to $14.00 (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like), then the $14.00 Triggering Event shall be deemed to have occurred. 14 | Hyzon Motors 2023 Proxy Statement

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