What are ZOLIC and the ZDEEP special economic zones, and what benefits do they offer?

ZOLIC is the Santo Tomás de Castilla Free Industrial and Trade Zone, created in 1973 by Decree 22-73 (the ZOLIC Organic Law). Decree 30-2008 amended that law and enabled the ZDEEP (Public Special Economic Development Zones), which extend the regime beyond the original enclosure to the rest of the country. The industrial chamber (CIG) cites as benefits the VAT (IVA) exemption on taxable acts inside the zone destined for foreign trade and the exemption from stamp duties. Authorization and enablement of a ZDEEP is governed by a ZOLIC board resolution, cited as 433-2010. ZOLIC publishes a list of active ZDEEP, but it is an institutional-promotional site: the official number of authorized ZDEEP and of installed users was not verified.