By Rhiannon Hoyle

Rio Tinto PLC said annual iron-ore shipments from its Australian mining operations fell by 3% in 2021 as projects were disrupted by a worker shortage and supply chain issues, but said shipments will likely increase this year.

The world's No. 2 mining company by market value said 321.6 million metric tons of iron ore were shipped from its operations in remote northwest Australia last year. Fourth-quarter shipments were down 5% year-over-year at 84.1 million tons, the miner said.

Rio Tinto reported challenges during the year at growth and so-called brownfield mine replacement projects, which were impacted by pandemic-related restrictions that made it hard to get workers. Rio Tinto also said it faced supply chain quality issues.

"The latter has been exacerbated by an inability to conduct pre-delivery quality assurance and control at international steel and equipment manufacturers due to limitations on travel," Rio Tinto said.

The miner said its iron-ore shipments from Australia's Pilbara region would likely rise in 2022, projecting exports of between 320 million and 335 million tons.

Rio Tinto also said it produced 7% less mined copper in 2021 versus 2020, at 494,000 tons. The company projected output of 500,000-575,000 tons this year.

The miner also produced 1% less aluminum year-over-year, at 3.15 million tons. It estimated 2022 aluminum production of 3.1 million-3.2 million tons.


Write to Rhiannon Hoyle at rhiannon.hoyle@wsj.com


(END) Dow Jones Newswires

01-17-22 1701ET