HLF have been remarkably quiet throughout the saga. I spent a lot of time trying to get some sense out of them back in the days before the first flight when the project looked like failing. Unfortunately, although they were willing to comment on vague and generalised matters, they would not discuss the facts and figures surrounding their involvement because (they claimed) it was a confidential matter between themselves and TVOC. I found this attitude quite remarkable, considering that it's our money that HLF is spending, but like so many aspects of the story, nothing surprises me any more!