Black Diamond-backed Speciality Chemicals International, a holding company, completed the acquisition of an additional stake in Polynt-Reichhold, a vertically-integrated global specialty chemical manufacturer, from Investindustrial, a European investment group, for $3bn. "We are extremely pleased with what management has been able to achieve with Polynt-Reichhold thus far and are looking forward to supporting them for the next phase of growth," Steve Deckoff, Black Diamond Managing Principal.