Credits: George Moore, all I can find on him is this but it looks like he has a good track record, Yebba, Kwabs and All Saints. Iain James of Love Me Hard (!!) No Regrets and I'm Alright, and of course the three ladies.
Credits say BMG Rights Management (UK) Limited, so publishing, but no label noted.
EDIT: I can't get enough of that photo. Exactly what Sugababes 2023 should be. This is going to be special.