UBS has warned clients that the brutal sell-off in lithium stocks is far from over, predicting that an oversupply of the battery material will continue to weigh on prices for the rest of this decade.

That caused the broker to shift back to an “underweight” rating on the Australian sharemarket’s lithium sector and cut its long-term spodumene, which is what Australian miners typically produce, forecast by 8 per cent to $US1200 a tonne.