Tags Mariel Special Development Zone First investor at Vietnamese-built industrial park in Cuba Monday, Nov 04, 2019 The industrial park is now under construction, which was inaugurated in November 2018 by the Vietnamese multi-sector group Viglacera. VN-Cuba joint venture to produce detergents near Havana Monday, Aug 20, 2018 Suchel TBV S.A., a joint venture between Viet Nam and Cuba, has received approval from the Cuban Government to build a detergent plant in the Mariel Special Development Zone.