Blackstone, a private equity firm, completed the acquisition of Sustana, a manufacturer of de-inked recycled pulp, from H.I.G. Capital, a private equity. Financial terms were not dislcosed. "Blackstone’s investment is a strong endorsement of our company and our highly talented team, and launches an exciting new chapter for Sustana. Our team has built a leading sustainability platform in our markets and Sustana is well positioned for robust continued growth in partnership with Blackstone," Fabian De Armas, Sustana CEO and Chairman.