Responsible Sourcing of Building Materials: From Due Diligence to Market Uptake.

The Coalition's Field Notes capture what we hear in the rooms where sand and silicates are being discussed. They are not consensus documents or policy positions. They are records of sensemaking: what people are thinking, how issues are being framed, and where the conversation points next. Each note comes from a specific place and moment, whether a conference session, a member call, a workshop or a partner meeting. Together, they build a living record of how responsibility for these materials is taking shape. In this field note, we share findings from a workshop held at the Sustainable Buildings and Construction Summit in Lausanne, Switzerland, 22 April 2026. The session, Responsible Sourcing of Construction Materials: Bridging Due Diligence and Market Uptake, was co-hosted by the Concrete Sustainability Council and the Coalition for Responsible Sand and Silicates.