The Gerdau Pref. ADR brand, founded in 1901 (Brazil), from 5 sister brands and 1093 competing brands. Gerdau Pref. ADR is a brand of GERDAU S.A., listed on the stock exchange of Francfort. The ISIN, the company's International Securities Identification Number, is BRGGBRACNPR8. The sector of Gerdau Pref. ADR is Steel.