I'm going to Paris on SYD-SFO-FRA-xCDG-FRA-BKK-SYD on this fare in Feb.
Cost though the corp TA includes $1250 in taxes.
Going SYD-SFO-FRA-xCDG-FRA-SFO-SYD was $1450 in taxes.
The base C fare of approx $5300 is the same for either, but taxes are $200 more for the Sydney-Paris return fare, versus the RTW going Sydney-Paris-Bangkok.
All prices $aud.