The more Clean Planet talk about a grand future - without showing that their technology works - the more red flags.
Were I them I'd want to get results before making grand plans. They have had lots of money with which to prove their no-good calorimetry by doing proper testing.
You need to think they are hiding Nobel Prize worthy progress (some much better internal tests) , while talking up future prospects without basis for them.
You may want to take note that Nikkei Business Publications is a Mainstream company. This is not a Clean Planet publication, is a mainstream media coverage of the Clean Planet development.