Read the publication’s territory and reference date
Cuba’s Ministry of Justice publishes mercantile information through its Prontuario de Unidades. Available material includes dated lists of micro, small and medium enterprises and non-agricultural cooperatives, with entries organised by territorial registry. Where provided, record the company’s denomination and its tomo, folio and hoja references. These details connect a published entry to the underlying registration more precisely than a commercial name alone.
Distinguish published notices from a complete company file
The same ministry collection also carries individual mercantile notices, such as a communication concerning a company division. Such a notice describes a particular event; a dated enterprise list covers the entries included in that publication. Neither establishes a continuously updated, comprehensive account of every Cuban business. For a formal enquiry, identify the relevant territorial register and specify which registration or later act requires documentary confirmation.