2012
Aiming at continuous improvement, quality of its products and customer satisfaction, Sigma Granitos acquired the Serra Ponte Inteligente Mecaltec, with the newest technological innovation in the cutting and preparing of ornamental stones.

2002
Consolidated in the national and international granites market, Sigma do Brasil founded Art Rocks in order to benefit their products. Ahead of the company is the businesswoman Kátia Coelho Travaglia.

1992
Year of foundation of Pleiades Mineração, expanding the mining park to the north of Espírito Santo.

1989
The block splitting process begins with four gang saw machines, modeling its production to 15,000 m² of rough plates per month.

1988
Year of the foundation of Sigma do Brasil. It was created to develop industry and trade activities of ornamental rocks and started its operation with block extraction.