17 C.F.R. § 240.13a-19
Every foreign private issuer that was a shell company, other than a business combination related shell company, immediately before a transaction that causes it to cease to be a shell company shall, within four business days of completion of that transaction, file a report on Form 20-F (§ 249.220f of this chapter) containing the information that would be required if the issuer were filing a form for registration of securities on Form 20-F to register under the Act all classes of the issuer's securities subject to the reporting requirements of section 13 (15 U.S.C. 78m ) or section 15(d) (15 U.S.C. 78o(d) ) of the Act upon consummation of the transaction, with such information reflecting the registrant and its securities upon consummation of the transaction.
17 C.F.R. §240.13a-19