Four Decades Of Innovation

The entrepreneurial vision and values at SEFA guided a culture where decision-making and hard work led to the success of our Company. SEFA has always embraced that every person on the team contributes to our success.


Southeastern Fly Ash Company was founded in April, 1976

With the goal to recycle fly ash for use in the construction industry, Tom and Jennie Hendrix founded SEFA on the principles of integrity, honesty, service, and hard work. These same principles remain part of SEFA’s culture today. Following formation in 1976, SEFA quickly built a reputation for developing mutually advantageous relationships within the utility and construction industries, focusing on technical service to concrete producers.



Faced with the very real threat of dwindling supply, and more importantly, determined to find a solution which permitted customers to have a continual supply of fly ash on a consistent basis, the Company focused on innovation for the future. After devoting significant resources and evaluating multiple technologies, SEFA chose thermal beneficiation. SEFA began operating the Wateree CBO Plant in June 1999, the world’s first thermal beneficiation plant for fly ash, which was built by SCE&G in Eastover, South Carolina.


McMeekin STAR® Plant

Recognizing the need for additional innovation to meet market needs for quality fly ash derived from a variety of sources, SEFA developed and built the first STAR® (Staged Turbulent Air Reactor) plant, using its patented thermal beneficiation process to lower the LOI of fly ash for use in concrete. SEFA began operating the McMeekin STAR® Plant in February 2008 in Columbia, South Carolina.


Morgantown STAR® Plant

The next generation STAR® processing facility, owned by NRG Energy, can recycle up to 350,000 tons of fly ash annually, the largest facility of its kind in the world. SEFA’s role in the development and operation was all encompassing, including process engineering, the supply of major process equipment, and operation and maintenance of the facility in Newburg, Maryland.


Winyah STAR® Plant

This facility represented a giant step forward for SEFA, the industry, and the environment, by combining the STAR® Process with the technical flexibility to recycle coal ash stored in ash ponds. In 2015, The SEFA Group began commercial operations at their first STAR® Plant capable of processing ash from surface ponds at the Santee Cooper Winyah Generating Station in Georgetown, South Carolina. It is believed to be the first of its kind designed to remediate commercial quantities of coal ash from ponds.

Company Overview


At SEFA, we leverage technology in every aspect of our business to provide exceptional solutions to partners and customers, now and in the future. Like many of our innovations, new technologies were developed to solve complex issues in our industry. With increasing demand for high-quality fly ash, SEFA develops forecast models to evaluate the estimated future demand for the material.


The foundation of our Company is the willingness to serve. For over 40 years, SEFA has focused on providing a reliable supply of quality fly ash for the ready mix concrete industry. Throughout our history, we have also customized and added services that our utility or construction customers needed at the time. SEFA continues its strong heritage of integrity, excellence, safety, and unsurpassed service to its customers.

Environmental Stewards

SEFA processes and markets environmentally sustainable products derived from fly ash for the concrete industry, recycling over 20 million tons of fly ash in the last 30 years. We are an integral part of some of the country’s most successful coal ash recycling programs. SEFA is making a positive impact for the future by cleaning up coal ash from ponds and removing it from the environment permanently.

STAR® Technology

Decades Of Thermal Beneficiation Innovation

SEFA partnered with industry leaders in the thermal engineering field almost 20 years ago, in an effort to refine and perfect an innovation developed by our R&D team. Today, with our proprietary STAR® Technology, we transform coal ash for beneficial use in concrete construction of buildings, bridges, and roads. As our industry learned valuable lessons and made innovative advancements in coal ash beneficiation, SEFA has been at the forefront of the coal ash marketing field, adapting and modifying methods to meet the demand for specification-grade material.


Embedded In Our Culture

SEFA has recycled over 20 million tons of fly ash in the last 30 years that would have otherwise gone into landfills or ponds, and we were the first company in the world reclaiming and recycling coal ash from ponds for concrete. SEFA has a strong heritage of unsurpassed service to its customers in an environmentally sensitive and sustainable manner.

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