RNS Number : 0227Z

Antofagasta PLC

12 September 2022



On 15 August severe sea swells overturned a construction platform working on the marine works of the Los Pelambres desalination plant project. There has been no significant environmental impact or damage to the works, and some of the equipment and materials lost have been recovered. However, the swells have continued which have impeded further recovery work and the Chilean environmental authority, the SMA, has required on 9 September that as a precautionary measure marine works should be placed on hold until the clean-up of the remaining sunk equipment carrying fuel or lubricants is progressed such that any risk of environmental impact is removed.

The recovery of the lost equipment and materials is underway and is expected to be completed once weather conditions improve. To date, there has been no material impact to the expected completion date of the overall desalination plant project.

The site is being closely monitored for any potential environmental impact and teams are on standby to take action if required.

 Investors - London                            Media - London 
  Andrew Lindsay alindsay@antofagasta.co.uk     Carole Cable antofagasta@brunswickgroup.com 
  Telephone +44 20 7808 0988                    Telephone +44 20 7404 5959 
  Rosario Orchard rorchard@antofagasta.co.uk 
  Telephone +44 20 7808 0988                    Media - Santiago 
                                                Pablo Orozco porozco@aminerals.cl 
                                                Carolina Pica cpica@aminerals.cl 
                                                Telephone +56 2 2798 7000 
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September 12, 2022 02:01 ET (06:01 GMT)

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