B. Riley Principal 250 Merger Corp. Contracts & Agreements

Description of Registrants Securities (Filed With SEC on April 14, 2023)

Description of Registrants Securities (Filed With SEC on March 29, 2022)

Underwriting Agreement, dated May 7, 2021, by and between the Company and B. Riley Securities, Inc., as representative of the several underwriters (Filed With SEC on May 12, 2021)

Business Combination Marketing Agreement, dated May 7, 2021, by and between the Company and B. Riley Securities, Inc (Filed With SEC on May 12, 2021)

Warrant Agreement, dated May 7, 2021, by and between the Company and Continental Stock Transfer & Trust Company, as warrant agent (Filed With SEC on May 12, 2021)

Letter Agreement, dated May 7, 2021, by and among the Company, its officers, its directors and B. Riley Principal 250 Sponsor Co., LLC (Filed With SEC on May 12, 2021)

Investment Management Trust Agreement, dated May 7, 2021, by and between the Company and Continental Stock Transfer & Trust Company, as trustee (Filed With SEC on May 12, 2021)

Registration Rights Agreement, dated May 7, 2021, by and between the Company, B. Riley Principal 250 Sponsor Co., LLC and the Companys independent directors (Filed With SEC on May 12, 2021)

Private Placement Units Purchase Agreement, dated May 7, 2021, by and between the Company and B. Riley Principal 250 Sponsor Co., LLC (Filed With SEC on May 12, 2021)

Administrative Support Agreement, dated May 7, 2021, by and among the Company and B. Riley Corporate Services, Inc (Filed With SEC on May 12, 2021)

Form of Underwriting Agreement (Filed With SEC on April 20, 2021)

Form of Business Combination Marketing Agreement between the Registrant and B. Riley Securities, Inc (Filed With SEC on April 20, 2021)

Form of Warrant Agreement between Continental Stock Transfer& Trust Company, LLC and the Registrant (Filed With SEC on April 20, 2021)

Form of Letter Agreement among the Registrant and our officers, directors and B. Riley Principal 250 Sponsor Co., LLC (Filed With SEC on April 20, 2021)

Form of Investment Management Trust Agreement between Continental Stock Transfer& Trust Company, LLC and the Registrant (Filed With SEC on April 20, 2021)

Form of Registration Rights Agreement between the Registrant and certain security holders (Filed With SEC on April 20, 2021)

Private Placement Units Purchase Agreement between the Registrant and B. Riley Principal 250 Sponsor Co., LLC (Filed With SEC on April 20, 2021)

Form of Underwriting Agreement (Filed With SEC on March 26, 2021)

Form of Business Combination Marketing Agreement between the Registrant and B. Riley Securities, Inc (Filed With SEC on March 26, 2021)

Specimen Unit Certificate (Filed With SEC on March 26, 2021)

Specimen ClassA Common Stock Certificate (Filed With SEC on March 26, 2021)

Specimen Warrant Certificate (Filed With SEC on March 26, 2021)

Form of Warrant Agreement between Continental Stock Transfer& Trust Company, LLC and the Registrant (Filed With SEC on March 26, 2021)

Form of Letter Agreement among the Registrant and our officers, directors and B. Riley Principal 250 Sponsor Co., LLC (Filed With SEC on March 26, 2021)

Promissory Note, dated June 19, 2020, issued to Sponsor (Filed With SEC on March 26, 2021)

Form of Investment Management Trust Agreement between Continental Stock Transfer& Trust Company, LLC and the Registrant (Filed With SEC on March 26, 2021)

Form of Registration Rights Agreement between the Registrant and certain security holders (Filed With SEC on March 26, 2021)

Private Placement Units Purchase Agreement between the Registrant and B. Riley Principal 250 Sponsor Co., LLC (Filed With SEC on March 26, 2021)

Form of Indemnity Agreement (Filed With SEC on March 26, 2021)

Form of Administrative Support Agreement by and between the Registrant and B. Riley Corporate Services, Inc (Filed With SEC on March 26, 2021)