In 1996, Viakable acquired Sāo Marco, one of the most important manufacturers of magnet wire, enamels, and clear coats in South America.
 
Sāo Marco began manufacturing magnet wire in 1946, in Sāo Paulo, Brazil. Through a series of mergers and acquisitions spanning over 30 years, Sāo Marco has expanded its capabilities and overall plant capacities to meet the growing demand for magnet wire in South America.