Bloomberg reports that Dow Chemical Co., restarted all operations at its St. Charles chemical plant in Louisiana with the exception the steam cracker, said a company spokesman. A Jan. 3 power interruption caused a loss of electrical power to the manufacturing site. The facility, called a cracker, splits oil products like naphtha and liquefied petroleum gases through pressure and heat. Outages can increase prices for ethylene and propylene as companies turn to spot markets to help them meet supply contracts. The St. Charles plant is a Union Carbide Corporation site, a wholly owned subsidiary of Dow. The chemical plant is located on the U.S. Gulf Coast in Hahnville, Louisiana, which is about 28 miles west of New Orleans.