EL is correct it clearly covers only the quotation period exposure, being a 3 to 4 month hedge on 50% of production
Sources:
page 13
http://www.asx.com.au/asx/statistics/displayAnnouncement.do?display=pdf&idsId=00932542
and
http://www.panaust.com.au/upload/Investor%20Presentation%20Share%20Placement.pdf