Decarbonization Plus Acquisition Corporation Iv Reopens Redemption Period And Reminds Shareholders How To Withdraw Prior Redemption Requests

Decarbonization Plus Acquisition Corporation IV (NASDAQ:DCRD) ("DCRD"), a publicly-traded special purpose acquisition company, is reopening the period during which holders of DCRD's Class A ordinary shares (such shares, the "DCRD Public Shares" and, such holders, the "DCRD Public Shareholders") may elect to redeem their DCRD Public Shares in connection with DCRD's previously announced business combination (the "Business Combination") with Hammerhead Resources Inc. ("Hammerhead"), pursuant to the Business Combination Agreement, dated as of September 25, 2022, by and among DCRD, Hammerhead, Hammerhead Energy Inc. ("NewCo") and 2453729 Alberta ULC.

Pursuant to DCRD's Amended and Restated Memorandum and Articles of Association (the "DCRD Articles"), any holders of DCRD Public Shares other than DCRD's sponsor, Decarbonization Plus Acquisition Sponsor IV LLC, or DCRD's officers or directors may elect to have their DCRD Public Shares redeemed for cash at a per-share redemption price equal to the aggregate amount then on deposit in the Trust Account, including interest earned on the funds held in DCRD's trust account (the "Trust Account") and not previously released to DCRD to fund regulatory withdrawals or to pay its taxes, calculated as of two business days prior to the consummation of the Business Combination, divided by the number of then-outstanding DCRD Public Shares.

To exercise redemption rights, holders of DCRD Public Shares must:

• if you hold DCRD Public Shares through DCRD units sold in DCRD's initial public offering ("DCRD Units"), elect to separate such DCRD Units into the underlying DCRD Public Shares and DCRD public warrants;

• prior to 5:00 p.m., Eastern Time, on February 7, 2023 (the "New Redemption Deadline"), tender the shares physically or electronically and submit a request in writing that the shares be redeemed for cash to Continental Stock Transfer & Trust Company, DCRD's transfer agent (the "Transfer Agent"), at the following address:

Continental Stock Transfer & Trust Company

1 State Street, 30th Floor

New York, New York 10004

Attention: Mark Zimkind

Email: [email protected];

• identify yourself as the beneficial holder of the DCRD Public Shares and provide your legal name, phone number and address; and
  
  
   
• deliver the DCRD Public Shares either physically or electronically through the automated system for deposits and withdrawals of securities ("DWAC") of The Depository Trust Company ("DTC") to the Transfer Agent before the New Redemption Deadline. DCRD Public Shareholders who hold their shares in street name will have to coordinate with their bank, broker or other nominee to have the shares certificated or delivered electronically. If you do not submit a written request and deliver your DCRD Public Shares as described above, your shares will not be redeemed.

Any demand for redemption, once made, may be withdrawn at any time until the New Redemption Deadline and thereafter, with DCRD's consent, until the closing of the Business Combination. If a DCRD Public Shareholder delivers, or previously delivered, its DCRD Public Shares for redemption to the Transfer Agent, and decides within the required timeframe not to exercise its redemption rights, such DCRD Public Shareholder may request that the Transfer Agent return such DCRD Public Shares (physically or electronically). DCRD Public Shareholders wishing to withdraw their demand for redemption may make such request by contacting the Transfer Agent by mail at Continental Stock Transfer & Trust Company, 1 State Street, 30th Floor, New York, New York 10004-1561, Attention: Mark Zimkind, or by email at [email protected].

DCRD Public Shareholders who previously elected to redeem their shares and do not wish to change their election do not need to take any additional action.