Gold price currently $2450+au at the moment which is much higher than the average price of $2011 that SLR received last half so i would say profit margins could well increase further this FY due to Gold's price increase.
" Revenue for the half year totalled $258.8 million from the sale of 127,459 ounces of gold equivalent1 at an average gold price of A$2,011/oz and copper price of A$8,475/t, a 116% increase on 1H FY19 ($119.8million from 69,947 ounces @ A$1,713/oz). The increase in revenue reflects the contribution from Deflector for the full period and the higher realised gold price. https://www.asx.com.au/asxpdf/20200224/pdf/44fc6x3h333mh0.pdf
Gold prices bottomed in December so would be logical to think we've received or will be receiving a higher sale price this half so far...