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  Siac belongs to the small worldwide group of Best Four companies, being certified with:
 
 
Certificado em Sistema de Gestão da Segurança e Saúde Ocupacional.
Certificate of Occupational Health and Safety Management System. OHSAS 18001:1999
Certificate of Quality Management System.
ISO 9001:2000
Certificate of Social Accountability System.
SA 8000:2001
Certificate of Environmental Management System.
ISO 14001:2004