I'm reading it as Emerald/Platinum access to First Class lounge - but not Sapphire/Gold to Buisness lounge unless I've missed something?

First two sentences read:

Qatar Airways will admit eligible Oneworld travellers to its new 'premium' first class lounge at Hamad International Airport, marking a welcome reversal from the airline's policy for its nest lounges at Doha and London Heathrow.

The airline's new first class lounge at Hamad will open its doors to Platinum-grade members of Qatar Airways' Privilege Club frequent flyer scheme as well as Oneworld Emerald equivalents, including Qantas Frequent Flyer Platinum and Platinum One.