Orica Limited is an Australian-based multinational corporation that is one of the world's largest providers of commercial explosives and blasting systems to the mining, quarrying, oil and gas, and construction markets, a supplier of sodium cyanide for gold extraction, and a specialist provider of ground support services in mining and tunnelling. Orica has a workforce of around 15,000 employees and contractors, servicing customers across more than 100 countries. Orica is listed on the Australian Securities Exchange. It has in recent years been subject to a number of high-profile industrial accidents and fatalities. Wikipedia