Ortech Industries, an Australian owned company that manufactures Durra Panel, Durra Steel Sections and Durra Panelised Building Systems at its production facility located in Bendigo Victoria. Durra Panel is the fully-certified wall and ceiling panel that insulates against sound and heat while being stronger, safer, and cheaper than plasterboard. Durra Panel is produced using a unique dry extrusion process that converts a natural and renewable resource; wheat straw fibres (biomass) into durable construction panels. The low energy manufacturing process requires no water or gas and is completely free of chemical additives, or binding agents.