Pisco producer Control Pisquero has announced a dramatic 31% year-on-year rise in sales by volume of Chile's national spirit in the first half of 2003. Control Pisquero, which operates the Mistral, Control, Tres Erres, Campanario and La Serena brands, sold 830,000 cases of pisco in the period to June, company general manager Elio Elorza said.