Primary aluminum output in the world’s top producer was up 8.5% year-on-year at 3.28 million tonnes in March, the National Bureau of Statistics said, beating the previous monthly high of 3.27 million tonnes reached in December 2020.

High prices are incentivising production, with Shanghai aluminum mostly holding above 17,000 yuan ($2,600) a tonne in March. Prices hit an 11-year high of 18,460 yuan ($2,830) on Friday, but the metal traded lower in London, down 0.6% to $2,342.50 per tonne.

Meanwhile, output of a group of 10 nonferrous metals — including copper, aluminum, lead, zinc and nickel — rose 12.7% year-on-year in March to 5.48 million tonnes, the Bureau said.

Daily aluminum output, however, eased in March from the previous two months, Reuters calculations based on official data showed, dropping to around 105,800 tonnes per day versus 109,300 tonnes per day for January-February, a record.

“March’s record output is due to a 500,000 tonne per year ramp-up of new capacity in the first quarter, offsetting the Inner Mongolia curbs,” CRU analyst Wan Ling told Reuters.

“Some idle capacity has restarted or is going to restart, April production should be still a bit higher compared with March,” Wan said.

“Data do indicate that China still has a considerable appetite for commodities,” Commerzbank analyst Daniel Briesemann said in a note.

Consultancy AZ China estimates 279,000 tonnes of annual aluminum capacity across seven smelters were shut due to the energy curbs, exceeding its estimate of 130,000 tonnes of new capacity launched in China last month, all in Yunnan.