Cuba: Rose Gypsum has thanked Grenzebach and GPM Engineering for the company's help in negotiations with Empressa Materiales de Construccion. The companies have been in talks with the state-owned company to build a gypsum wallboard plant for Cuban and the Caribbean market. The plans also include production facilities for ceiling panels. Rose Gypsum described the tendering process as 'extremely challenging.' It is currently waiting for a response to its latest proposal.