Profit for 2019 = 38,000 Oz x USD427 = USD16,226,000 (SGD 22,067,360). EPS = SGD0.0541. At current share price of SGD0.265, PE is only 4.90
I think his steps are ok but he forgot to impute a tax on the SGD22.1 million profit. in other words, that's pre-tax profit, not net profit.
In 1Q2019, the tax rate was 27%.