I’ve got a booking CNX-HKG-PVG on a CX flight number on both flights. The CNX-HKG sector is operated by HK Express. I’m oneworld Emerald (BA Gold) and it’s unclear whether or not I will get an extra baggage allowance.

Does anyone have experience of this. I’m aware that a booking made directly with HK Express wouldn’t qualify but unsure as it’s a CX code.