You are correct HZR do not mention the word options, the quoted...

You are correct HZR do not mention the word options, the quoted line is my conclusion to the logic puzzle posed in the paragraph copied below. The facts as I interpret them are

There is currently sufficient cash to fund, underlying operations only till the end of 2019
The demonstration plant is the next major cash draw @ 10m. This funding is required soon if the early to mid 2019 commitment date is to be met
HZR intend to part fund the demo plant "in addition to our own resources" so will need more cash than they currently have available to use.
The options fit the needs created above, quick cash at a reasonable dilution, without the punitive costs of capital raising that often apply to companies at this end of the risk spectrum.