GEORGETOWN, South Carolina — The site of the former International Paper mill in Georgetown that closed last year is soon set to turn into a biomass plant, state Sen. Stephen Goldfinch of Murrells Inlet said. “I can confirm the plant is slated to be (primarily) a bio mass plant,” Goldfinch said. “There will be other stuff there as well, but that will be the primary function.”mBiomass is organic matter that’s derived from living or recently living organisms, primarily plants and animals, and can be used as a source of energy or other materials.,No additional information about the plans, including who is behind the project, was immediately available. The paper mill closed permanently in December. It employed 674 people before its closure.