Vennesla building-materials group holding two current SINTEF certificates for its Huntonit Brannit board: 1071-CPR-3071, a CE certificate of constancy of performance valid to February 2030, and TG 2038, a SINTEF Teknisk Godkjenning covering Huntonit Proff Vegg, Huntonit Bygningsplater and Huntonit Brannit to February 2027. Holding both marks on the same product is the Norwegian pattern for a board sold into domestic construction: the CPR certificate satisfies CE marking, and the TG says the product is fit for Norwegian conditions.