Sirius Minerals Plc is the United kingdom-based potash development company. The Company acquires, explores and develops salt and potash properties in North America and Australia. It develops Polyhalite deposit in the United Kingdom. The Company�s project includes York Potash. York Potash is the Company�s flagship development asset, proposing to develop a new potash mine near Whitby, North Yorkshire. York Potash Project produces polyhalite, a multi-nutrient mineral containing four of the six macro-nutrients. The Project area of interest lies between Whitby and Scarborough, extending about 16 kilometers inland from the coast and up to 14 kilometers off shore. It produces over six million tons of polyhalite per annum. York Potash Ltd, Sirius Minerals Holdings Limited, Sirius Exploration Limited are few of its subsidiary companies.