Aluminium closed up 1.49% on the London Metal Exchange to US$2,757.25, having reached $2,775.50/tonne in early trading yesterday.
It was the first day back in the LME Ring yesterday for members of the open outcry trading system after an 18-month suspension due to COVID-19.
In a mixed finish for base metals, copper gained 0.22% and nickel fell 0.78%.
Gold softened slightly to $1,822 an ounce on the spot market.
In London, US-focused Lexington Gold (AIM: LEX) leapt 20.8% despite no news since an operational update last month about drilling plans and an expected initial resource estimate for Loflin "in the coming weeks".
North American markets reopen today after the Labour Day break.