Geostaff manufactures glass-reinforced gypsum passive fire protection products at its plant in the Oise — GEOFLAM and GEOTEC fire-rated boards, ventilation and smoke-extraction ducts, technical-shaft encasements, fire-rated access hatches and column and carbon-reinforcement protection. Products are CE-marked with Declarations of Performance and a European Technical Assessment for the GEOTEC S system, with fire performance established by testing at CSTB, Efectis, CTICM, Warringtonfire and Ginger CEBTP against EN 1366-1 and -8 and EN 13501-3 and -4. Ratings run from EI 60 to EI 180.