Rio Tinto PLC

Declaration of Voting Results & Voting Rights Announcements • Dec 8, 2025

National Storage Mechanism | Additional information

RNS Number : 7058K

Rio Tinto PLC

08 December 2025

Notice to ASX/LSE                                                                                                                       

Lithium Deep Dive and investor site visit to Argentina

8 December 2025

Rio Tinto is hosting an investor site visit to Argentina to highlight its world-class integrated lithium business and growth pipeline.

The presentation is not considered to contain any new material financial information.

The presentation slides are available at the link below.

www.riotinto.com/en/invest/presentations/2025/lithium-deep-dive

LEI: 213800YOEO5OQ72G2R82

Contacts

Please direct all enquiries to [email protected]

### Media Relations, ### United Kingdom Matthew Klar  M +44 7796 630 637  David Outhwaite M +44 7787 597 493	### Media Relations, ### Australia Matt Chambers M +61 433 525 739 Alyesha Anderson M +61 434 868 118 Rachel Pupazzoni M +61 438 875 469 Bruce Tobin   M +61 419 103 454	### Media Relations, ### Canada Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 ### Media Relations, ### US & Latin America Jesse Riseborough  M +1 202 394 9480
### Investor Relations, ### United Kingdom Rachel Arellano M: +44 7584 609 644 David Ovington M +44 7920 010 978 Laura Brooks   M +44 7826 942 797  Weiwei Hu   M +44 7825 907 230	### Investor Relations, ### Australia Tom Gallop M +61 439 353 948 Eddie Gan-Och  M +976 95 091 237
### Rio Tinto plc 6 St James's Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885	### Rio Tinto Limited Level 43, 120 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404

This announcement is authorised for release to the market by Andy Hodges, Rio Tinto's Group Company Secretary.

riotinto.com

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