Document

Exhibit 99.1

Notice to ASX/LSE

2020 Annual general meetings

10 March 2020

Rio Tinto has today issued notices for the 2020 annual general meetings of Rio Tinto plc and Rio Tinto Limited. The notices are available at riotinto.com/invest/shareholder-information/annual-general-meetings. Rio Tinto Limited’s notice of meeting will also be released to the ASX.

Rio Tinto plc will hold its 2020 annual general meeting in London on 8 April 2020 and Rio Tinto Limited will hold its 2020 annual general meeting in Brisbane, Australia on 7 May 2020.

An addendum to Rio Tinto Limited’s notice of meeting setting out the shareholder requisitioned resolutions received by the company under section 249N of the Australian Corporations Act 2001, and the Rio Tinto Limited board’s response and voting recommendation with respect to such resolutions, will be issued during the week commencing 16 March 2020.

Page 1 of 2

Contacts

media.enquiries@riotinto.com

riotinto.com

Follow @RioTinto on Twitter


Media Relations, United Kingdom Illtud Harri M +44 7920 503 600 David Outhwaite T +44 20 7781 1623 M +44 7787 597 493 Media Relations, Americas Matthew Klar T +1 514 608 4429 Media Relations, Asia Grant Donald T +65 6679 9290 M +65 9722 6028			Media Relations, Australia Jonathan Rose T +61 3 9283 3088 M +61 447 028 913 Matt Chambers T +61 3 9283 3087 M +61 433 525 739 Jesse Riseborough T +61 8 6211 6013 M +61 436 653 412
Investor Relations, United Kingdom Menno Sanderse T: +44 20 7781 1517 M: +44 7825 195 178 David Ovington T +44 20 7781 2051 M +44 7920 010 978			Investor Relations, Australia Natalie Worley T +61 3 9283 3063 M +61 409 210 462 Amar Jambaa T +61 3 9283 3627 M +61 472 865 948
Group Company Secretary Steve Allen Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom T +44 20 7781 2000 Registered in England No. 719885			Joint Company Secretary Tim Paine Rio Tinto Limited Level 7, 360 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 Rio Tinto’s Group Company Secretary.

Page 2 of 2