Addivant, a portfolio company of SK Capital Partners since 2013, combined with SI Group in October 2018. The combination was ... the result of SK Capital’s acquisition of SI Group, who then combined both organizations to form a new company. Under our new brand, SI Group, we are a global technology and industry leader in performance additives, process solutions, pharmaceuticals and chemical intermediates, with strong market position in the plastics, rubber, fuels & lubricants, oilfield and active pharmaceutical ingredient industries. We hope that you join us as SI Group and encourage you to follow the SI Group LinkedIn page today to keep up to date with us! read more