Simon A. Oaten

Diploma Group Ltd. engages in the commercial construction and property development business. It offers vertically integrated model by designing entire process of a project, from initial concept to final delivery of the end product. The firm operates through two divisions: Construction and Property Development. The Construction division specializes in designing and constructing projects for residential high-rise, mixed use, retail and commercial property. The Property Development division provides end-to-end property development solutions and manages projects from initial conception through to practical completion, including project marketing and sales. The company was founded by Dominic B. Di Latte in 1976 and is headquartered in Belmont, Australia.

Multiplex Ltd. provides construction services.

GRD Pty Ltd. provides engineering and development services. The firm conducts its business in two divisions: Minproc and Global Renewables. The Minproc division leads global engineering and project delivery business providing services and specializing in the design, procurement, and construction of mineral resources and waste-to-resources projects. The Global Renewables division leads technologies to maximize the recovery of resources from the municipal waste stream through its UR-3R Process. The company is headquartered in Perth, Australia.