G'Day Chaps,
I stand by my comments that the only Avgas manufactured in Australia is from Viva's Geelong refinery. I know this, as we tried to purchase BP's F4 supercharged test engine when they ceased manufacturing Avgas, but they sent it to another refinery in the BP group overseas. If BP still markets Avgas of their own, it is imported. In my day, I remember Shell making Agas100LL (blue), 100/130 (green) and 115/145 (purple). The 115 made really good racing fuel . . . .
As far as TEL goes, back in the days of leaded petrol, it used to come in tankers with parcels up to 1000s of tonnes. Nowadays, Geelong receives it in 20' iso-tainers. Manufactured in Europe still? It used to come from England.
Cheers,
Capt SFB