Established in 1962, GrainKing (formerly known as Trufab Farm Machinery) is a family run business that began by simply doing mechanical repairs. Shortly after GrainKing was established, the opportunity came to begin working with structural steel. This opportunity allowed Trufab to expand and build a large workshop in Perth. Structural steel was the forefront of the young business, however, as the mining boom started GrainKing became involved in large projects all over Western Australia.