Oscar, Welcome to the forum but I think it would be more...

Oscar, Welcome to the forum but I think it would be more profitable reading the prospectus and viewing some of the video clips the company has put out than getting caught up in the discussions on HC. But a brief overview.
AEB is 'proven, reliable and repeatable" as seen in the prospectus where the inventors had a model working continuously for 4 months. They still have something working in order to give Lufthansa the fuel it needs to do its own tests.
The problem centers around the next step scaleability. There are two plants. The Manildra plant is currently having tests done to prove out the prospectus claims. These were originally scheduled for August last year when the plant was supposed to open in May. When the plant finally opened in August, the tests were due for completion in November ... then December ... then January ... then February ... then March ... then ?
If /and when the tests are completed, and Sri Lanka also starts producing, then there will be no major hold ups to major expansion with Lufthansa taking 1/2 the product from an AEB unit set up in Europe.
Most of us think that once the test results are released, that will lead to a rapid re-rating of the stock with many new contracts signed and a new rapid assembly plant for the modules announced.
hope this helps. DYOR