I found this while checking Terry Bassetts' patent for generating power from waste oil, looking for a connection with Clean Burn, ( there is ) but first. From a 2007 article on PPG......
PPG, a privately held company incorporated in Tennessee, is an affiliate of Atlantic Systems Group of Harrisonburg, VA, which is in the business of designing and building automotive oil change and service facilities throughout the United States, along with the manufacturing of steel tanks for the lube
industry.
PPG`s equity partners include Hansom James Capital, whose principals founded Tennessee-based AIMS Logistics Inc.
"We have been part of successful start-ups before, however, I am speaking for the entire group when I say this one is special," said David Nelson, co-founder of Hansom James Capital, which is providing financing and marketing expertise
for the company. Makes me wonder.