Thanks Bryn. Well spotted re options vs current shareholding. So, (15,820,000 / 3,408,207,658) x 100 = 0.46 % Which is, I'm sure, a lot less than some private retail LTHs have accumulated over the years.
Just realised I made another error. The BoD have 67.5m shares, NOT 6.75m. D'oh! So percentage is (67500000 / 3408207658) x 100 = 1.98%. So my original answer was actually correct, I just mistyped the 67.5m shares!!!