To guarantee you an optimal browsing experience, this site uses technical cookies. We invite you to read our policy. Ok, I've read Transparency and precision. In our gases, as in our services. Italiano English COMPANY 'ITALIAN ACETYLENE AND DERIVATIVES SIADSpA I-24126 Bergamo - Via S. Bernardino, 92 VAT and Tax Code 00209070168 - Certified Mail Address: siad@pec.it Share Capital - Share Capital € 25,000,000 iv - paid up VAT, CF, Reg. Impr. Bg - VAT and Fiscal Nr .: (IT) 00209070168 R.EA BG-15532 - Export: BG 000472