Common Contracts

Decarbonization Plus Acquisition Corporation III Menlo Park, CA 94025 Re: Initial Public Offering Gentlemen:

Underwriting Agreement • March 26th, 2021 • Decarbonization Plus Acquisition Corp III • Blank checks

• Contract Type
  Underwriting Agreement
• Filed
  March 26th, 2021
• Company
  Decarbonization Plus Acquisition Corp III
• Industry
  Blank checks

This letter (this “Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) to be entered into by and among Decarbonization Plus Acquisition Corporation III, a Delaware corporation (the “Company”), and Credit Suisse Securities (USA) LLC and Citigroup Global Markets Inc., as representatives (the “Representatives”) of the several underwriters (each, an “Underwriter” and collectively, the “Underwriters”), relating to an underwritten initial public offering (the “Public Offering”), of 40,250,000 of the Company’s units (including up to 5,250,000 units that may be purchased to cover over-allotments, if any) (the “Units”), each comprised of one share of the Company’s Class A common stock, par value $0.0001 per share (the “Common Stock”), and one-third of one warrant. Each whole warrant (each, a “Warrant”) entitles the holder thereof to purchase one share of Common Stock at a price of $11.50 per share, subject to adjustment. The

November 21, 2019 CHP Merger Corp. Summit, NJ 07901

Underwriting Agreement • November 27th, 2019 • CHP Merger Corp. • Blank checks

• Contract Type
  Underwriting Agreement
• Filed
  November 27th, 2019
• Company
  CHP Merger Corp.
• Industry
  Blank checks

This letter (this “Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into or proposed to be entered into by and among CHP Merger Corp., a Delaware corporation (the “Company”), and J.P. Morgan Securities LLC, Credit Suisse Securities (USA) LLC and Morgan Stanley & Co. LLC, as the representatives (the “Representatives”) of the several underwriters (collectively, the “Underwriters”), relating to an underwritten initial public offering (the “Public Offering”) of up to 31,625,000 of the Company’s units (including up to 4,125,000 units that may be purchased to cover over-allotments, if any) (the “Units”), each comprised of one share of the Company’s Class A common stock, par value $0.0001 per share (the “Common Stock”), and one-half of one redeemable warrant (each, a “Warrant”). Each whole Warrant entitles the holder thereof to purchase one share of Common Stock at a price of $11.50 per share, subject to adjustme