Right now, they're reviewing the technical data for the aluminum surfaces. There will be some final tests that are needed at the university level to verify the tests.
The HD matting is in the process of being tested now. We should have the results from that within the next four to six months to determine whether or not it will be suitable for runways. We already think it might be suitable for tarmac areas and taxiways. There are talks and discussions now about whether or not there might be a combination of materials that can be used to lower the cost to put these runways in place.
There are issues with asphalt right now in Arctic communities, and there are issues with gravel runways. They're getting less snow and more rain. There are runoff issues and, of course, the permafrost is a serious problem.