MAS Acquisition XXVIII Corp was a blank-check shell company — the twenty-eighth vehicle in the MAS Acquisition series — registered with the SEC and structured for the purpose of completing a business combination or reverse merger. The company operated within the broad acquisition and blank-check sector during the late-SPAC-era formation wave of the early 2000s. On April 18, 2002, the company filed a Form 15-12G with the SEC, voluntarily terminating its registration obligations under Section 12(g) of the Securities Exchange Act of 1934, effectively closing out its public reporting status without completing a transaction. No exchange ticker was assigned. Visit SpacDesk and sign up for full filing history, sponsor-level data, and deal analytics on hundreds of SPAC vehicles like this one.