Tomago Aluminium | 14,805 followers on LinkedIn. At Tomago our people are transforming the business for a sustainable future. | Tomago Aluminium is the largest Aluminium smelter in Australia and a joint venture between global companies Rio Tinto, CSR and Hydro Aluminium. • Leading manufacturer of primary aluminium products • Products include extrusion billet, rolling slab, and aluminium ingot • Located in the industrial suburb of Tomago, 13km NW of Newcastle, 40km from the scenic Hunter Valley • 1000+ employees • Producing 590,000 tonnes of aluminium annually • Spending $900m annually on materials, supplies and labour in Australia • $800m spent locally in the Hunter Region alone • Represent approximately 37% of Australia’s primary aluminium capacity.