1. The document discusses sustainable supply chain management and collaborative planning. It provides background on concepts like the triple bottom line and outlines economic, environmental and social dimensions of sustainable supply chains. 2. It then describes a workshop held in Wales that brought together supply chain stakeholders to discuss barriers and identify initiatives to develop more sustainable local supply chains for building materials. 3. The workshop evaluated current supply chains and opportunities for local and sustainable alternatives, with the goal of coordinating efforts through collaboration between industry and government.