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BCS

Current Report · Items 7.01, 9.01 · 8-K

Columbus Acquisition Corp/Cayman Islands

CCLANASDAQEQUITYCurrent

Regulation FD Disclosure

Item 7.01 Regulation FD Disclosure. On October 1, 2026, WISeSat. Space Holdings Corp., a British Virgin Islands business company, issued a press release announcing the closing of its business combination with Columbus Acquisition Corp., a Cayman Islands exempted company. A copy of the press release is attached to this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.…

Filed Oct 2, 2026Accepted Oct 2, 2026, 7:37 AM EDTCIK 2028201Accession 0001213900-26-106089
Share

Company context

We are a blank check company incorporated in the Cayman Islands on January 18, 2024 as an exempted company with limited liability (meaning that our public shareholders have no liability, as shareholders of our company, for the liabilities of our company over and above the amount paid for their shares). We were formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, recapitalization, reorganization or similar business combination with one or more businesses or entities, which we refer to as a “target business.” Our efforts to identify a prospective target business will not be limited to a particular industry or geographic location. We do not have any specific business combination under consideration and we have not (nor has anyone on our behalf), directly or indirectly, contacted any prospective target business or had any substantive discussions, formal or otherwise, with respect to such a transaction. Additionally, we have not engaged or retained any agent or other representative to identify or locate any suitable acquisition candidate, to conduct any research or take any measures, directly or indirectly, to locate or contact a target business. As a blank check company incorporated for the purpose of effecting a business combination, we have significant ties to China. Dr. Fen “Eric” Zhang, our Chief Executive Officer, who is also the sole member and sole director of our sponsor, is a Canadian citizen but currently resides in China for

Current securities

Historical securities (3)

Recent company filings

  1. SCHEDULE 13G/A - filed by Harraden Circle Investments, LLC regarding Columbus Acquisition Corp/Cayman IslandsOct 8, 2026
  2. Entry into a Material Definitive Agreement · Completion of Acquisition or Disposition of Assets · Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing · Material Modification to Rights of Security Holders · Changes in Control of Registrant · Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · Amendments to Articles of Incorporation or Bylaws; Change in Fiscal YearOct 7, 2026
  3. Submission of Matters to a Vote of Security Holders · Regulation FD DisclosureOct 6, 2026
  4. 425 filingOct 2, 2026
  5. 425 filingOct 2, 2026

Registered securities in this filing

Columbus Acquisition Corp/Cayman Islands · 8-K · Filed 2026-10-02

As filed in this accession. Current/historical status below comes from the governed listing record; the cover itself remains exact to this filing.

Units, consisting of one ordinary share, $0.0001 par value, and one Right to acquire one-seventh of one ordinary share

Symbol
COLAU
Exchange
NASDAQ
Classification
UNIT
Status
Historical · closed Oct 1, 2026
Filing context

Context: From2026-10-012026-10-01_custom_UnitsConsistingOfOneOrdinaryShare0.0001ParValueAndOneRightToAcquireOneseventhOfOneOrdinaryShareMember

Dimensions: us-gaap:StatementClassOfStockAxis

Ordinary shares, par value $0.0001 per share

Symbol
COLA
Exchange
NASDAQ
Classification
COMMON
Status
Historical · closed Oct 1, 2026
Filing context

Context: From2026-10-012026-10-01_custom_OrdinarySharesParValue0.0001PerShareMember

Dimensions: us-gaap:StatementClassOfStockAxis

Rights, each whole right to acquire one-seventh of one ordinary share

Symbol
COLAR
Exchange
NASDAQ
Classification
RIGHT
Status
Historical · closed Oct 1, 2026
Filing context

Context: From2026-10-012026-10-01_custom_RightsEachWholeRightToAcquireOneseventhOfOneOrdinaryShareMember

Dimensions: us-gaap:StatementClassOfStockAxis

Accession 000121390026106089 · 3 registered-security cover members

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Disclosure sections

Items 7.01, 9.01

Select an item to read the extracted section. The as-filed document remains the primary evidence.

Item 7.01Item 7.01 - Regulation FD Disclosure
Item 7.01 Regulation FD Disclosure. On October 1, 2026, WISeSat. Space Holdings Corp., a British Virgin Islands business company, issued a press release announcing the closing of its business combination with Columbus Acquisition Corp., a Cayman Islands exempted company. A copy of the press release is attached to this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference. The press release shall not be deemed “filed” for any purpose, including for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that Section. The information in this Item 7.01, including Exhibit 99.1, shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act regardless of any general incorporation language in the filing.
Filed exhibits (1)
EX-99.1 (by filename) ea030750001ex99-1.htm

Exhibit 99.1 WISeSat. Space Holdings Corp. Announces Closing of Business Combination with Columbus Acquisition Corp GENEVA, Switzerland, October 1, 2026 -- WISeSat. Space Holdings Corp., a British Virgin Islands business company (“Pubco” or “WISeSat”), today announced the completion today October 1, 2026 (“Closing”) of its previously announced business combination with Columbus Acquisition Corp (“CAC”) (the “Business Combination”). The ordinary shares of Pubco, the combined company following the Business Combination, will commence trading on the Nasdaq on October 2, 2026, under the ticker symbol “SAIQ.” The Business Combination was approved by CAC’s shareholders at an extraordinary general meeting of shareholders on September 30, 2026, and all remaining closing conditions of the Business Combination were satisfied or waived among the parties as of October 1, 2026 prior to Closing. Advisors Maxim Group LLC served as WISeSat’s financial advisor. Ellenoff Grossman & Schole LLP represented WISeSat as legal counsel and Harney Westwood & Riegels (BVI) LP represented WISeSat as British Virgin Islands legal counsel. Loeb & Loeb LLP represented CAC as legal counsel and Ogier represente…

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