... responsibility factor Individuals and departments in the company are assigned task and responsibility according to requirement of quality managing system ISO 9001:2000, so, responsibility and authority ... Long - Viglacera Granite Company changed its name again into Tien Son – Viglacera Granite Company On January, 23rd, 2007, Tien Son – Viglacera Granite Company changed its name again into Viglacera ... capacity In 2009, a new line with 1,5 million m2/ year capacity has been put into operation, raised capacity to 4,5 million m2/year, production output is expected at 70% level of design capacity...