Rio Tinto Alcan is the largest shareholder in the Boyne Smelters Limited (BSL) joint venture, which produces about 558,000 tonnes of aluminium per annum. Construction is well advanced in projects to modernise and extend the life of the plant. | www.riotintoalcan.com

Australia's largest cement plant, Cement Australia's facility at Fisherman's Landing has a production capacity of more than 1.7 million tonnes of cement per annum. | www.cemaust.com.au

Chalco Australia last year allowed its $2.5 billion development deal with the Queensland Government to lapse due to adverse conditions in the aluminium sector. This project would involve the development of a new bauxite mine on Cape York and an alumina refinery, which was proposed to be based at Abbot Point outside Bowen. | www.chalcoaustralia.com.au

Gladstone Pacific Nickel plans to develop a new $US3.65 billion nickel and cobalt refinery. The project has State and federal environmental approvals but remains on hold. | www.gladstonepacific.com.au

Boulder Steel proposes construction of a $1.8 billion steel plant to be developed in two stages. It plans to produce 2.5mtpa of billets, blooms and slabs as the first stage of the project, followed by a second stage expansion to 5mtpa. | www.bouldersteel.com.au

construction work is well advanced for Incitec Pivot Limited subsidiary Dyno Nobel's new $935 million ammonium nitrate manufacturing plant, to begin production early 2012. | www.incitecpivot.com.au

this site produces about 560,000 tonnes of ammonium nitrate products annually for the mining industry as well as 95,000 tonnes of sodium cyanide and about 9000 tonnes of chlorine and associated products. | www.oricaminingservices.com

about 700,000 tonnes of magnesite is processed annually at this Queensland Magnesia facility to produce more than 300,000 tonnes of high-grade deadburned, electrofused and calcined magnesia products. | www.qmag.com.au

Queensland Alumina Limited (QAL) is one of the world's largest alumina refineries, producing about 3.95mtpa of smelter grade alumina. | www.qal.com.au

a joint venture involving Dyno Nobel and CSBP (Wesfarmers), this facility is designed to produce 180,000 tonnes per year of ammonium nitrate. | www.dawsonvalley.net/QNP/

construction is well advanced in a $US1.9 billion expansion project to more than double alumina production to 3.4mtpa from 2012 at this Rio Tinto Alcan-owned plant. | www.riotintoalcan.com