It suggests in the announcement it is influenced the barge availability.
"The Solomon Islands national general election scheduled for 3 April 2019 and recent poor weather conditionshampered barge availability and the shipment of ore. This has meant the reschedule of our first shipment of nickel oreto April 2019."
A buyer for the first shipment of nickel is confirmed with subsequent bulk ore carrier ship scheduled for loadingbetween 15 to 20 April 2019.
It's 20 days! ..and a buyer! I wouldn't read too much into it.
GLTA