Dec 14, 2011. /Lesprom Network/. Sonoco of Hartsville would be investing $100 million in upgrades to its South Carolina-based paper mill, creating up to 10 new jobs. According to a press release from the South Carolina Governor's office, Sonoco will spend $75 million to add a new biomass boiler, which will replace the two existing coal-fired boilers. Sonoco makes packaging products. The new boiler will produce about 16 megawatts of green energy that will be used in the paper making process. "We are extremely excited about this project. It is the single largest capital investment that Sonoco has made to our Hartsville manufacturing operations and in South Carolina," said Sonoco President and COO Jack Sanders. "In addition to maintaining the viability of our operations and protecting hundreds of existing jobs, the project will create new growth opportunities and new jobs." The improvements will begin this month and last through July 2013. In addition to the ten jobs that will be added, the company says construction will require 200 people. Thirty jobs could be created indirectly through the delivery of biomass material to the plant.