Yes GTHI is still alive, in which shape or form I don't know, but if you read the latest Pr real good there're several hints in there. Not necessarily directly to GTHI but could very well be.
"The high test bay is for advanced pilot projects, a fabrication shop and space for the incubator companies that will be joining us. J3 has completely renovated the office building and the bench-scale laboratory."
"That will be joining us" tells me he already knows that there're candidates, perhaps already in advanced stages of negotiations, or in a lesser form preliminary contacts have been made, otherwise he would have said "that could be joining us", no?!
"J3 will be handling all future testing for various technology uses not only for MBS but for other technologies which will give GTGP the ability to assess and potentially license or form joint ventures with other interested parties. J3 will also handle all marketing for GTGP."
This is the second hint or indication that he already knows that other (incubator) companies will be coming into play: for various technologies uses not only for MBS but for other technologies" & "to access and potentially license or form joint ventures with other interested parties"!!!
Lots of verifiable information in this section: (no further comments 
"The professionals that worked for MSE on previous GTGP metals treatment projects using MBS are at the new facility. Projects they conducted include the treatability studies for Waste Lock 770/MBS combination of materials to treat and dewater soils and sediments simultaneously, and the presentation of that work by J3 at the Waste Management Symposium 2013 in Phoenix. The team participated in meetings at Oak Ridge National Laboratory for mercury treatment and performed bench-scale mercury testing that lead to a full-scale implementation of the MBS technology for mercury treatment of flue gas at a cement plant. The depth of their talents and skill sets is well known for their work with the DOE, the EPA, and the Military as well as many large corporations within the industry."
