The SEFA Group About SEFA Services Innovation Safety Sustainability Contact Epic 404 - Article Not Found The article you were looking for was not found, but maybe try looking again! Search for: About For over 40 years, The SEFA Group has been making a positive difference by transforming coal combustion residuals into environmentally sustainable products for the concrete industry. Our patented STAR® Technology makes us the country’s leader in thermal beneficiation of fly ash. Services STAR ® Technology Fly Ash Sales & Operations SEFA Transportation Industrial Solutions Resource Center News Videos Media Inquiries SDS STAR ® Technology FAQ Visit our SEFA Business Unit Websites sefatransportation.com sefasolutions.com 217 Cedar Road, Lexington, SC 29073 (803) 520-9000 Toll-free: (888) 339-SEFA (7332) © 2017 SEFA