Mickem has reminded me that the presentation of 20 June said...

Mickem has reminded me that the presentation of 20 June said there was also $1-2 million pa ongoing maintenance for the canal project, so this should be added to the $10.5 million in contracts I identified above to give a total of $11.5 to $12.5 million for 2018-19 so far. There may of course be some smaller Chinese and international sales as well and I think some maintenance on the wetlands projects also. Even small additions to the larger projects could make the ongoing total look much healthier.

It would help if the company provided an aggregate figure for sales to date each year, plus contracts outstanding, rather than us having to trawl through previous releases to try to add up a total.