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www.cpi-worldwide.com CPI %u2013 Concrete Plant International %u2013 2 | 2026 73costs can quickly outweigh the value of the part itself. %u201cWith SPI, we are not fighting formwork every time a design gets more expressive. We can keep the precision and repeatability you expect from precast while opening the door to truly freeform geometry, and that is key to scaling this approach.%u201d %u2013 Nathan Kerkstra.Mangrove was founded to address this exact problem.Mangrove and the SPI approachMangrove is a concrete additive manufacturing company focused on large scale freeform architectural, landscape, and site components that are difficult or uneconomical to produce with conventional tooling. The company is a pioneer to bring Selective Paste Intrusion (SPI) concrete printing into a purpose-built production environment designed for repeatMangrove is embarking on a journey to push boundaries and explore new possibilities in additive manufacturing, large-scale 3D printing, and custom concrete fabrication. The technology impresses in terms of detail and creative freedom, featuring a 2.8 mm layer resolution and a print box measuring 16 feet long, 8 feet wide, and 5 feet deep.