<P> The Palestinian Dead Sea Coast is about 40 kilometres (25 miles) long . The Palestinian economy is unable to benefit from Dead Sea chemicals due to restricted access, permit issues and the uncertainties of the investment climate . The World Bank estimates that a Palestinian Dead Sea chemicals industry could generate $918 m incremental value added per year, "almost equivalent to the contribution of the entire manufacturing sector of Palestinian territories today". </P> <P> Both companies, Dead Sea Works Ltd. and Arab Potash, use extensive salt evaporation pans that have essentially diked the entire southern end of the Dead Sea for the purpose of producing carnallite, potassium magnesium chloride, which is then processed further to produce potassium chloride . The ponds are separated by a central dike that runs roughly north - south along the international border . The power plant on the Israeli side allows production of magnesium metal (by a subsidiary, Dead Sea Magnesium Ltd .). </P> <P> Due to the popularity of the sea's therapeutic and healing properties, several companies have also shown interest in the manufacturing and supplying of Dead Sea salts as raw materials for body and skin care products . </P> <P> Since 1930, when its surface was 1,050 km (410 sq mi) and its level was 390 m (1,280 ft) below sea level, the Dead Sea has been monitored continuously . In recent decades, the Dead Sea has been rapidly shrinking because of diversion of incoming water from the Jordan River to the north . The southern end is fed by a canal maintained by the Dead Sea Works, a company that converts the sea's raw materials . From a water surface of 395 m (1,296 ft) below sea level in 1970 it fell 22 m (72 ft) to 418 m (1,371 ft) below sea level in 2006, reaching a drop rate of 1 m (3 ft) per year . As the water level decreases, the characteristics of the Sea and surrounding region may substantially change . </P>

Where does the dead sea salt come from
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