If you believe the SP will go above the strike price $0.25 before expiry date 14 Dec 2020 then they make absolute sense to enter now given how tightly held they are and no dilution.
18 months hold with a tidy profit and reduced CGT makes for a good LTT if you believe the above will happen.
Obviously risky but so is every trade/investment as this end of the market.
imo
EN1 Price at posting:
4.9¢ Sentiment: Buy Disclosure: Held