Form6k2024june

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO

RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of June 2024


Commission file number: 001-10533	Commission file number: 001-34121

Rio Tinto plc	Rio Tinto Limited
	ABN 96 004 458 404
(Translation of registrant’s name into English)	(Translation of registrant’s name into English)

6 St. James’s Square	Level 43, 120 Collins Street
London, SW1Y 4AD, United Kingdom	Melbourne, Victoria 3000, Australia
(Address of principal executive offices)	(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of

Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

EXHIBITS

99.1Stock Exchange announcement dated 3 June 2024 entitled ‘Total voting rights and issued capital’.

99.2Media Release dated 4 June 2024 entitled ‘Rio Tinto to develop BioIronTM R&D facility in Western

Australia to test low-carbon steelmaking’.

99.3Media Release dated 11 June 2024 entitled ‘Rio Tinto to acquire Mitsubishi’s 11.65% stake in Boyne

aluminium smelter’.

99.4Stock Exchange announcement dated 13 June 2024 entitled ‘Shareholdings of persons discharging

managerial responsibility (PDMR) / Key Management Personnel (KMP)’.

99.5Stock Exchange announcement dated 28 June 2024 entitled ‘Rio Tinto to install carbon free aluminium

smelting cells using first ELYSISTM technology license’.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused

this report to be signed on their behalf by the undersigned, thereunto duly authorised.


Rio Tinto plc		Rio Tinto Limited
(Registrant)		(Registrant)

By	/s/ Andrew Hodges	By	/s/ Tim Paine
Name	Andrew Hodges	Name	Tim Paine
Title	Company Secretary	Title	Company Secretary

Date	1 July 2024	Date	1 July 2024

EXHIBIT 99.1

Notice to LSE

Total voting rights and issued capital

3 June 2024

In accordance with the Financial Conduct Authority’s (FCA) Disclosure Guidance and

Transparency Rule 5.6.1R, Rio Tinto plc notifies the market that as of 31 May 2024:

1.Rio Tinto plc’s issued share capital comprised 1,255,915,469 Ordinary shares of 10p

each, each with one vote.

2.3,340,902 Ordinary shares of 10p each are held in treasury. These shares are not

taken into consideration in relation to the payment of dividends and voting at

shareholder meetings.

Accordingly the total number of voting rights in Rio Tinto plc is 1,252,574,567. This figure may be

used by shareholders (and others with notification obligations) as the denominator for the

calculation by which they will determine if they are required to notify their interest in, or a change to

their interest in, Rio Tinto plc under the FCA’s Disclosure Guidance and Transparency Rules.

Note:

As at the date of this announcement:

(a)Rio Tinto plc has also issued one Special Voting Share of 10p and one DLC Dividend Share of

10p in connection with its dual listed companies (‘DLC’) merger with Rio Tinto Limited which

was designed to place the shareholders of both companies in substantially the same position

as if they held shares in a single enterprise owning all of the assets of both companies;

(b)the Special Voting Share facilitates joint voting by shareholders of Rio Tinto plc and Rio Tinto

Limited on joint electorate resolutions; and

(c)there are 371,216,214 publicly held Rio Tinto Limited shares in issue which do not form part of

the share capital of Rio Tinto plc.

LEI: 213800YOEO5OQ72G2R82

Classification: 2.5 Total number of voting rights and capital disclosed under article 15 of the

Transparency Directive

Contacts

Please direct all enquiries to media.enquiries@riotinto.com


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 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322	Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152
Investor Relations, United Kingdom David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797	Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948
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

Notice to LSE2 / 2


	EXHIBIT 99.2

Media Release

Rio Tinto to develop BioIron™ R&D facility in Western Australia

to test low-carbon steelmaking

04 June 2024

PERTH, Australia--(BUSINESS WIRE)-- Rio Tinto will invest US$143 million (A$215 million) to develop a

research and development facility in Western Australia to further assess the effectiveness of its low-carbon

ironmaking process, BioIronTM, to support decarbonising the global steel value chain.

The development of the BioIron Research and Development Facility in the Rockingham Strategic Industrial

Area, south of Perth, follows successful trials of the innovative ironmaking process in a small-scale pilot plant in

Germany.

BioIron uses raw biomass and microwave energy instead of coal to convert Pilbara iron ore to metallic iron in the

steelmaking process. When combined with the use of renewable energy and carbon-circulation by fast-growing

biomass, BioIron has the potential to reduce carbon emissions by up to 95% compared with the current blast

furnace method.

The BioIron facility will include a pilot plant that will be ten times bigger than its predecessor in Germany. It will

also be the first time the innovative steelmaking process has been tested at a semi-industrial scale, capable of

producing one tonne of direct reduced iron per hour. It will provide the required data to assess further scaling of

the technology to a larger demonstration plant.

The plant has been designed in collaboration with University of Nottingham, Metso Corporation and Western

Australian engineering company Sedgman Onyx. Fabrication of the equipment will begin this year, with

commissioning expected in 2026. These works are expected to support up to 60 construction jobs.

The research and development facility will employ around 30 full-time employees and include space for

equipment testing to support further scaling up of the BioIron technology, while developing a workforce highly

skilled in steel decarbonisation and supporting WA universities and research organisations.

Rio Tinto Iron Ore Chief Executive Simon Trott said, “The world needs low-carbon steel to reach net zero, and

we are working to make this a reality by finding better ways to turn our Pilbara ores into steel.

“BioIron is a world-first technology that has the potential to play a significant role in a low-carbon steel future.

“This research and development facility will further test the BioIron process, showcase Western Australian

innovation capability, and further demonstrates Rio Tinto’s commitment to supporting and enabling the

decarbonisation of the steel industry.”

Western Australian Premier Roger Cook said, “As one of the world’s largest iron ore producers, it just makes

sense for WA to lead the world when it comes to low-emission steelmaking.

“Our plan to turn WA into a renewable energy powerhouse opens up massive economic opportunities for the

future, like producing low-emission steel right here at home.

“Processing iron ore in WA will create jobs, reduce the world’s carbon emissions and help to diversify and

strengthen our economy for decades to come.

“This is another job-creating clean energy project in our industrial heartland of Kwinana and Rockingham, part of

our commitment to transitioning the industrial strip to a clean energy future.”

Note to the editors

Fly through and B-Roll vision of the Western Australian BioIron Research and Development Facility is available

to download here.

Steelmaking accounts for 8% of the world’s carbon emissions, and 69% of Rio Tinto’s Scope 3 emissions in

2023.

BioIron was invented by Rio Tinto’s steel decarbonisation team after a decade of extensive research.

Electricity consumption in the BioIron process is about one-third of the electricity required by other steelmaking

processes that rely on renewable hydrogen.

BioIron uses raw biomass such as agricultural by-products like wheat straw, barley straw, sugarcane bagasse,

rice stalks, and canola straw, instead of coal as the reducing agent.

Rio Tinto is aware of the complexities around the use of biomass supply and is working to ensure only

sustainable sources of biomass are used. Through discussions with environmental groups, as a first step Rio

Tinto has ruled out sources that support the logging of old growth and High Conservation Value forests.

For more information about the BioIron process, please see here.

Category: General

View source version on businesswire.com: https://www.businesswire.com/news/home/20240603264140/en/

Media Release2 / 3

Contacts

Please direct all enquiries to media.enquiries@riotinto.com


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 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322	Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152
Investor Relations, United Kingdom David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797 Wei Wei Hu M +44 7825 907 230	Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948
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

riotinto.com

Media Release3 / 3

EXHIBIT 99.3

Media Release

Rio Tinto to acquire Mitsubishi’s 11.65% stake in Boyne

aluminium smelter

11 June 2024

Rio Tinto has agreed to acquire Mitsubishi Corporation’s 11.65% interest in Boyne Smelters Ltd (BSL),

which owns and operates the Boyne Island aluminium smelter in Gladstone, Australia.

On completion of this transaction, and the recent agreement to acquire Sumitomo Chemical

Company’s 2.46% interest in BSL, Rio Tinto’s interest in BSL will increase to 73.5%.

The acquisition, which is for an undisclosed price, is subject to various conditions precedent, including

approval from Australia’s Foreign Investment Review Board, and is expected to be finalised in the

second half of 2024.

Rio Tinto looks forward to continuing to work with its remaining BSL joint venture partners and other

stakeholders on securing a competitive low-carbon future for its Gladstone operations.

After completion of the two transactions, the BSL joint venture partners will be: Rio Tinto (73.5%), YKK

Aluminium (9.50%), UACJ Australia (9.29%) and Southern Cross Aluminium (7.71%).

Contacts

Please direct all enquiries to media.enquiries@riotinto.com


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 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322	Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152
Investor Relations, United Kingdom David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797 Wei Wei Hu M +44 7825 907 230	Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948
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

riotinto.com

Media Release2 / 2

Notice to ASX/LSE Shareholdings of persons discharging managerial responsibility (PDMR) / Key Management Personnel (KMP) 13 June 2024 As part of its dual listed company structure, Rio Tinto notifies dealings in Rio Tinto plc and Rio Tinto Limited securities by PDMRs/KMPs to both the London Stock Exchange (LSE) and the Australian Securities Exchange (ASX). Sinead Kaufman (a PDMR/KMP), sold Rio Tinto Limited shares as follows: Number of Shares Sold Price Per Share AUD Date sold 6,882 120.529646 13 June 2024 LEI: 213800YOEO5OQ72G2R82 Classification: 3.1. Information disclosed under article 19 of the Market Abuse Regulation. EXHIBIT 99.4

Notice to ASX/LSE 2 / 2 Contacts Please direct all enquiries to media.enquiries@riotinto.com 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 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322 Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152 Investor Relations, United Kingdom David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797 Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948 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

EXHIBIT 99.5

Notice to ASX/LSE

Rio Tinto to install carbon free aluminium smelting cells using

first ELYSISTM technology licence

28 June 2024

MONTRÉAL, Canada – Rio Tinto will install carbon free aluminium smelting cells at its Arvida smelter

in Québec, Canada, using the first technology licence issued by the ELYSIS joint venture. This

investment will support the ongoing development of the breakthrough ELYSISTM technology and allow

Rio Tinto to build expertise in its installation and operation.

Rio Tinto will design, engineer, and build a demonstration plant equipped with ten pots operating at

100 kiloamperes (kA). The plant will be owned by a new joint venture in which Rio Tinto and the

Government of Québec, through Investissement Québec, will invest $179 million (CAN$235 million)

and $106 million (CAN$140 million) respectively as equity partners, for a total investment of US$285

million (CAN$375 million).

This facility will use the same technology that has been successfully demonstrated at the ELYSIS

Industrial Research and Development Center in Saguenay—Lac-St-Jean. This pilot operation will be a

critical step in Rio Tinto’s learning journey towards full scale industrialization of the ELYSISTM

technology.

The plant will have the capacity to produce up to 2,500 tonnes of commercial quality aluminium per

year without direct greenhouse gas emissions, with first production targeted by 2027. It will be located

adjacent to the existing Arvida smelter, allowing the use of the current alumina supply and casting

facilities.

Rio Tinto Aluminium Chief Executive Jérôme Pécresse said: “This investment will further strengthen

Rio Tinto’s industry-leading position in low-carbon, responsible aluminium in North America with our

hydro-powered smelters and our recycling capacity. Becoming the first to deploy the ELYSISTM

carbon-free smelting technology is the next step in our strategy to decarbonize and grow our

Canadian aluminium operations. In addition to delivering even lower-carbon primary aluminium for our

customers, this investment will allow Rio Tinto to build its expertise on installing and operating this new

technology, while the ELYSIS joint venture continues its research and development work to scale it up

to its full potential.”

Québec Minister of Economy, Innovation and Energy; Minister for Regional Economic Development;

and Minister for the Metropolis and the Montreal Region, Pierre Fitzgibbon, said: “ELYSISTM is a truly

disruptive technology for the industry, and it's thanks to Quebec expertise that we are the first in the

world to produce GHG-free aluminium. This is a technological innovation with unprecedented benefits

for our aluminium sector, which remains an undisputed world leader.”

The Honourable François-Philippe Champagne, Canada’s Minister of Innovation, Science and

Industry, said: “Canada has all it takes to be the global green supplier of choice, which is why our

government is collaborating with key industry actors like Rio Tinto to produce low carbon aluminium.

Groundbreaking projects such as the ELYSISTM smelting technology will ensure Canada remains at

the forefront of the economy of tomorrow while also staying focused on its carbon reduction goals.

When economic benefits are paired with a commitment to developing green solutions, it’s a win for

Canadian industry, our cleantech ecosystem and our workers.”

ELYSIS joint venture partner Alcoa will have the option to purchase from Rio Tinto a portion of the

aluminium produced over the first four years at the Arvida demonstration plant through an offtake

agreement.

The joint venture is continuing its research and development program to scale up the ELYSISTM

technology and has completed the construction of larger prototype 450 kA cells at the end of an

existing potline at Rio Tinto’s Alma smelter. ELYSIS has begun commissioning these industrial

prototype cells, with the start-up sequence set to begin in 2024.

Notice to ASX/LSE2 / 3

Contacts

Please direct all enquiries to media.enquiries@riotinto.com


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 Jesse Riseborough M +61 436 653 412 Alyesha Anderson M +61 434 868 118 Michelle Lee M +61 458 609 322	Media Relations, Americas Simon Letendre M +1 514 796 4973 Malika Cherry M +1 418 592 7293 Vanessa Damha M +1 514 715 2152
Investor Relations, United Kingdom David Ovington M +44 7920 010 978 Laura Brooks M +44 7826 942 797	Investor Relations, Australia Tom Gallop M +61 439 353 948 Amar Jambaa M +61 472 865 948
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

Notice to ASX/LSE3 / 3