Blackstone-backed Sustana, a sustainable fiber and paper company, and Hanna Paper, a high-grade paper recycling company, formed a joint venture. Financial terms were not disclosed. "Today marks an exciting milestone for Sustana and the long-term stability of our supply chain. We are steadfast in our commitment to sustainability, and we are thrilled to welcome Hanna, a long-time leader in our industry, to the Sustana family. We look forward to growing together with Hanna and its team as we continue to deliver on our vision of a circular economy." Fabian de Armas, Sustana CEO.