Brent crude edged down towards $121/B on Wednesday, retreating from a nine-month high, as weaker Chinese manufacturing data and resurfacing worries about the euro zone debt crisis cast doubt on global economic health and prospects for fuel demand. EU approved a €130bn rescue fund to Greece, saving it from bankruptcy. But investors remained worried about long-term reforms. Brent crude for April delivery fell to $121.66/B, while US crude for April was down to $106.16/B Wednesday morning in Singapore.