LME aluminium drops USD 21/t while alumina stays flat—what’s next?

The previous day trend is followed on Tuesday, September 23, 2025, where the London Metal Exchange (LME) aluminium prices have further fallen. However, there is still no change witnessed in the LME price of alumina platts. 

Both the LME cash bid and offer price inched down by USD 21 per tonne or 0.8 per cent and finally settled at USD 2,645.5 per tonne and USD 2646 per tonne. Similarly, the 3-month bid and offer also calmed down by USD 24 per tonne or 0.9 per cent and stood at USD 2,639.5 per tonne and USD 2,640 per tonne respectively. 

The trend was further mirrored in the LME December 26 bid and offer price when it fell by USD 23 per tonne or 0.85 per cent. Bid settled down at USD 2,682 per tonne and offer at USD 2,687. 

To know more about the global primary aluminium industry 2025 outlook, read “Global Aluminium Industry Outlook 2025”

The Asian Reference Price also decreased by USD 7 per tonne or 0.26 per cent, and the final price concluded at USD 2,638 per tonne. 

A significant change has been seen in the opening stock, live warrants and cancelled warrants. Opening stock fell from 513,900 tonnes to 513,850 tonnes. Live warrants went down by 2,025 tonnes or 0.5 per cent and are currently at 402,650 tonnes. Concurrently, cancelled warrants inched down by 1,975 tonnes or 1.8 per cent, totalling 111,200 tonnes, up from 109,225 tonnes. 

The alumina Platts LME price showed no change and is recorded to be at USD 332.89 per tonne. 

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