Exhibit 99.2

Astrum Space Inc

4th Floor, Harbour Place,

103 South Church Street,

P.O. Box 10240, Grand Cayman KY1-1002,

George Town, Cayman Islands

October 15, 2026

Re: Consent Letter

Dear Management Team of Astrum Space Inc:

We hereby consent to the inclusion of our name and our Valuation of 25 MHz L-Band Spectrum Report, dated August 20, 2026 to the Board of Directors of Astrum Space Inc (the “Company”) as Exhibit 99 to, and to the references thereto in the proxy statement related to the proposed business combination involving the Company and Black Spade Acquisition III Co (the “Business Combination”), which proxy statement forms a part of the Registration Statement on Form F-4 of the Company and Black Spade Acquisition III Co (the “Registration Statement”), as well as any subsequent amendments thereto in the Registration Statement and any amendments thereto, in any other future filings with the United States Securities and Exchange Commission (the “SEC”) by the Company in connection with the Business Combination, and in any related publicity materials.

We further hereby consent to the filing of this letter as an exhibit to the Registration Statement and any amendments thereto and as an exhibit to any other filings with the SEC. Our valuation report is not to be used, circulated, quoted or otherwise referred to for any other purpose, nor it is to be filed with, included in or referred to in whole or in part in any other registration statement, proxy statement or any other document, except in accordance with our prior written consent.

By giving such consent, we do not thereby admit that we are experts with respect to any part of such Registration Statement within the meaning of the term “expert” as used in, or that we come within the category of persons whose consent is required under Section 7 of the Securities Act of 1933, as amended, or the rules and regulations of the SEC promulgated thereunder.

Yours faithfully

For and on behalf of Roma Appraisals Limited

/s/ Roma Appraisals Limited