1. To recover as a member of the Class based on your claims in the action entitled Malork v. Anderson, et al., C.A. No. 2022-0260-PAF (the “Action”), you must complete and, on page 7 hereof, sign this Proof of Claim and Release. If you fail to submit a timely and properly addressed (as set forth in paragraph 3 below) Proof of Claim and Release, your claim may be rejected and you may be precluded from any recovery from the Net Settlement Fund created in connection with the proposed Settlement of the Action.

2. Submission of this Proof of Claim and Release, however, does not ensure that you will share in the proceeds of the Settlement of the Action.

3. THE COURT-APPOINTED SETTLEMENT ADMINISTRATOR FOR THIS ACTION MUST RECEIVE YOUR COMPLETED AND SIGNED PROOF OF CLAIM AND RELEASE, ACCOMPANIED BY COPIES OF THE DOCUMENTS REQUESTED HEREIN, AT THE FOLLOWING MAILING ADDRESS OR THROUGH THE FOLLOWING WEBSITE:

YOUR PROOF OF CLAIM AND RELEASE MUST BE SUBMITTED ONLINE OR RECEIVED BY MAIL NO LATER THAN OCTOBER 14, 2025.

If you are NOT a member of the Class, as defined in the Notice of Pendency and Proposed Settlement of Stockholder Class Action, Settlement Hearing, and Right to Appear (the “Notice”), DO NOT submit a Proof of Claim and Release.

4. If you are a member of the Class, you will be bound by the terms of any judgment entered in the Action, including the releases provided therein, WHETHER OR NOT YOU SUBMIT A PROOF OF CLAIM AND RELEASE FORM.


If you held shares of Decarbonization Plus Acquisition Corporation (“Decarb”) Class A common stock as of July 13, 2021, in your name, you are the beneficial holder as well as the record holder. If, however, you held shares of Decarb Class A common stock as of July 13, 2021, that was registered in the name of a third party, such as a nominee or brokerage firm, you are the beneficial holder and the third party is the record holder.

Use Part I of this form entitled “Claimant Identification” to identify each holder of record (“nominee”), if different from the beneficial holder, of the shares of Decarb Class A common stock which form the basis of this claim. THIS CLAIM MUST BE FILED BY THE ACTUAL BENEFICIAL HOLDER OR THE LEGAL REPRESENTATIVE OF SUCH HOLDER OF THE SHARES UPON WHICH THIS CLAIM IS BASED.

All joint holders must sign this claim. Executors, administrators, guardians, conservators, and trustees must complete and sign this claim on behalf of persons represented by them and their authority must accompany this claim and their titles or capacities must be stated. The last four digits of the Social Security Number (or full and complete Taxpayer Identification Number) and telephone number of the beneficial holder may be used in verifying the claim. Failure to provide the foregoing information could delay verification of your claim or result in rejection of the claim.

If you are acting in a representative capacity on behalf of a member of the Class (for example, as an executor, administrator, trustee, or other representative), you must submit evidence of your current authority to act on behalf of that Class Member. Such evidence would include, for example, letters testamentary, letters of administration, or a copy of the trust documents.

NOTICE REGARDING ELECTRONIC FILES: Certain claimants with large numbers of transactions may request, or may be requested, to submit information regarding their transactions in electronic files. All such claimants MUST also submit a manually signed paper Proof of Claim and Release listing all of their transactions whether or not they also submit electronic copies. If you wish to submit your claim electronically, you must contact the Settlement Administrator at info@DCRBSpacSettlement.com to obtain the required file layout. Any file not in accordance with the required electronic filing format will be subject to rejection. Only one claim should be submitted for each separate legal entity and the complete name of the beneficial holder(s) of the securities must be entered where called for. Distribution payments must be made by check or electronic payment payable to the Authorized Claimant (beneficial account holder). The third-party filer shall not be the payee of any distribution payment check or electronic distribution payment. No electronic files will be considered to have been properly submitted unless the Settlement Administrator issues to the claimant a written acknowledgement of receipt and acceptance of electronically submitted data.


Use Part II of this form entitled “Schedule of Transactions in Decarb Class A Common Stock or Ordinary Shares of Hyzon” to supply all required details of your holdings, purchase(s), and sale(s) of Decarb Class A common stock or ordinary shares of Hyzon. If you need more space or additional schedules, attach separate sheets giving all of the required information in substantially the same form. Sign and print or type your name on each additional sheet.

On the schedules, provide all of the requested information with respect to: (i) all shares of Decarb Class A common stock held by you as of July 13, 2021; (ii) all of your purchases and sales (including any redemptions by Decarb) of shares of Decarb Class A common stock or ordinary shares of Hyzon after July 13, 2021, through March 18, 2022, regardless of whether such transactions resulted in a profit or a loss; and (iii) if applicable, all ordinary shares of Hyzon held by you as of the close of the market on March 18, 2022. Failure to report all such transactions may result in the rejection of your claim.

List these transactions separately and in chronological order, (i) by number of shares of Decarb Class A common stock held as of July 13, 2021, (ii) then by purchase and sale date for all shares of Decarb Class A common stock or ordinary shares of Hyzon after July 13, 2021, through March 18, 2022, beginning with the earliest, (iii) then, if applicable, by number of ordinary shares of Hyzon held as of the close of the market on March 18, 2022. You must accurately provide the month, day, and year of each transaction you list.

Copies of stockbroker confirmation slips, stockbroker statements, or other documents evidencing: (i) your holdings of Decarb Class A common stock as of July 13, 2021; (ii) your subsequent purchases and sales of Decarb Class A common stock or ordinary shares of Hyzon after July 13, 2021, through March 18, 2022; and (iii) your holdings of ordinary shares of Hyzon as of the close of the market on March 18, 2022, should be attached to your claim. If any such documents are not in your possession, please obtain a copy or equivalent documents from your broker because these documents are necessary to prove and process your claim. Failure to provide this documentation could delay verification of your claim or result in rejection of your claim.

PLEASE NOTE: As set forth in the Plan of Allocation, each Authorized Claimant shall receive his, her, its, or their pro rata share of the Net Settlement Fund. If the prorated payment to any Authorized Claimant calculates to less than $10.00, it will not be included in the calculation and no distribution will be made to that Authorized Claimant.