Form 8.3 RIO TINTO PLC AND RIO TINTO LIMITED

FORM 8.3

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY

A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR

MORE

Rule 8.3 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Full name of discloser:

Barclays PLC.

(b)

Owner or controller of interest and short positions disclosed, if different from 1(a):

(c)

Name of offeror/offeree in relation to whose relevant securities this form relates:

RIO TINTO PLC AND RIO TINTO LIMITED

(d)

If an exempt fund manager connected with an offeror/offeree, state this and specify identity of offeror/offeree:

(e)

Date position held/dealing undertaken:

26 Jan 2026

(f)

In addition to the company in 1(c) above, is the discloser making disclosures in respect of any other party to the offer?

YES: GLENCORE PLC

2.

POSITIONS OF THE PERSON MAKING THE DISCLOSURE

(a)

Interests and short positions in the relevant securities of the offeror or offeree to which the disclosure relates following the dealing(if any)

Class of relevant security:

Rio Tinto plc 10p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1) Relevant securities owned and/or controlled:

8,225,104

0.65%

8,883,850

0.65%

(2) Cash-settled derivatives:

4,442,544

0.35%

3,898,834

0.31%

(3) Stock-settled derivatives (including options) and agreements to purchase/sell: 

31,000

0.00%

1,316,428

0.10%

TOTAL: 

12,698,648

1.00%

14,099,112

1.06%

Class of relevant security:

Rio Tinto Limited ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1) Relevant securities owned and/or controlled:

891,741

0.24%

1,078,119

0.29%

(2) Cash-settled derivatives:

1,038,633

0.28%

779,129

0.21%

(3) Stock-settled derivatives (including options) and agreements to purchase/sell: 

0

0.00%

0

0.00%

TOTAL: 

1,930,374

0.52%

1,857,248

0.50%

(b)

Rights to subscribe for new securities (including directors and other executive options)

Class of relevant security in relation to which subscription right exists

Details, including nature of the rights concerned and relevant percentages:

3.

DEALINGS (IF ANY) BY THE PERSON MAKING THE DISCLOSURE

(a)

Purchase and sales

Class of relevant security

Purchase/sale

Number of securities

Price per unit

ADR

Purchase

145,834

91.3539 USD

Rio Tinto plc 10p ordinary

Purchase

66,903

66.7920 GBP

Rio Tinto plc 10p ordinary

Purchase

66,879

66.7809 GBP

ADR

Purchase

61,383

91.3023 USD

ADR

Purchase

35,885

91.3973 USD

ADR

Purchase

26,577

91.5108 USD

Rio Tinto plc 10p ordinary

Purchase

26,356

66.9885 GBP

ADR

Purchase

24,031

91.6098 USD

Rio Tinto plc 10p ordinary

Purchase

21,384

66.5828 GBP

Rio Tinto plc 10p ordinary

Purchase

20,221

66.7600 GBP

Rio Tinto plc 10p ordinary

Purchase

19,974

66.7332 GBP

ADR

Purchase

17,905

91.4039 USD

ADR

Purchase

14,288

90.9635 USD

ADR

Purchase

13,556

91.4239 USD

ADR

Purchase

10,969

91.1635 USD

Rio Tinto plc 10p ordinary

Purchase

10,355

66.8379 GBP

Rio Tinto plc 10p ordinary

Purchase

9,755

66.5279 GBP

ADR

Purchase

8,925

92.0000 USD

Rio Tinto plc 10p ordinary

Purchase

7,707

66.3404 GBP

ADR

Purchase

7,557

91.1579 USD

Rio Tinto plc 10p ordinary

Purchase

7,450

66.6837 GBP

Rio Tinto plc 10p ordinary

Purchase

7,390

66.6076 GBP

Rio Tinto plc 10p ordinary

Purchase

7,225

66.9520 GBP

ADR

Purchase

6,825

91.8649 USD

Rio Tinto plc 10p ordinary

Purchase

5,902

66.7181 GBP

Rio Tinto plc 10p ordinary

Purchase

5,571

66.7653 GBP

Rio Tinto plc 10p ordinary

Purchase

5,374

66.9370 GBP

Rio Tinto plc 10p ordinary

Purchase

5,027

66.8271 GBP

Rio Tinto plc 10p ordinary

Purchase

4,752

66.4083 GBP

ADR

Purchase

4,519

91.3788 USD

Rio Tinto plc 10p ordinary

Purchase

4,315

66.3700 GBP

ADR

Purchase

4,300

90.6803 USD

ADR

Purchase

3,483

91.1118 USD

Rio Tinto plc 10p ordinary

Purchase

3,243

66.9017 GBP

ADR

Purchase

3,150

91.4434 USD

Rio Tinto plc 10p ordinary

Purchase

3,123

66.6653 GBP

ADR

Purchase

2,905

90.4700 USD

Rio Tinto plc 10p ordinary

Purchase

2,800

66.9835 GBP

Rio Tinto plc 10p ordinary

Purchase

2,531

66.5899 GBP

ADR

Purchase

2,512

91.2930 USD

ADR

Purchase

2,470

91.4839 USD

Rio Tinto plc 10p ordinary

Purchase

2,143

67.0308 GBP

Rio Tinto plc 10p ordinary

Purchase

2,129

77.0177 EUR

Rio Tinto plc 10p ordinary

Purchase

2,038

66.7648 GBP

ADR

Purchase

2,026

91.1250 USD

ADR

Purchase

1,948

91.5173 USD

ADR

Purchase

1,708

91.2784 USD

ADR

Purchase

1,630

90.4952 USD

ADR

Purchase

1,612

91.0525 USD

Rio Tinto plc 10p ordinary

Purchase

1,587

66.8114 GBP

Rio Tinto plc 10p ordinary

Purchase

1,531

67.0075 GBP

Rio Tinto plc 10p ordinary

Purchase

1,323

66.9450 GBP

Rio Tinto plc 10p ordinary

Purchase

1,252

66.9143 GBP

ADR

Purchase

1,235

91.0738 USD

Rio Tinto plc 10p ordinary

Purchase

1,215

66.0433 GBP

Rio Tinto plc 10p ordinary

Purchase

1,159

66.9582 GBP

Rio Tinto plc 10p ordinary

Purchase

1,100

66.8496 GBP

ADR

Purchase

961

91.8357 USD

Rio Tinto plc 10p ordinary

Purchase

957

66.7574 GBP

ADR

Purchase

950

90.5532 USD

ADR

Purchase

900

91.0533 USD

Rio Tinto plc 10p ordinary

Purchase

831

66.8913 GBP

Rio Tinto plc 10p ordinary

Purchase

791

66.7449 GBP

Rio Tinto plc 10p ordinary

Purchase

787

66.7633 GBP

ADR

Purchase

767

90.7008 USD

ADR

Purchase

739

91.3998 USD

Rio Tinto plc 10p ordinary

Purchase

684

66.0400 GBP

ADR

Purchase

655

90.5500 USD

ADR

Purchase

567

90.5200 USD

ADR

Purchase

525

91.4973 USD

Rio Tinto plc 10p ordinary

Purchase

449

66.8549 GBP

Rio Tinto plc 10p ordinary

Purchase

385

66.4043 GBP

Rio Tinto plc 10p ordinary

Purchase

335

66.2500 GBP

Rio Tinto plc 10p ordinary

Purchase

329

66.2400 GBP

Rio Tinto plc 10p ordinary

Purchase

286

67.0750 GBP

Rio Tinto plc 10p ordinary

Purchase

272

67.2400 GBP

Rio Tinto plc 10p ordinary

Purchase

257

67.1900 GBP

Rio Tinto plc 10p ordinary

Purchase

250

66.4300 GBP

Rio Tinto plc 10p ordinary

Purchase

231

66.7948 GBP

Rio Tinto plc 10p ordinary

Purchase

224

66.9585 GBP

Rio Tinto plc 10p ordinary

Purchase

209

66.5300 GBP

Rio Tinto plc 10p ordinary

Purchase

207

67.0400 GBP

ADR

Purchase

200

91.6700 USD

Rio Tinto plc 10p ordinary

Purchase

200

67.0600 GBP

ADR

Purchase

200

90.4875 USD

ADR

Purchase

200

90.5100 USD

ADR

Purchase

200

90.5250 USD

Rio Tinto plc 10p ordinary

Purchase

194

76.5889 EUR

Rio Tinto plc 10p ordinary

Purchase

187

66.3600 GBP

Rio Tinto plc 10p ordinary

Purchase

172

66.4176 GBP

Rio Tinto plc 10p ordinary

Purchase

161

66.3143 GBP

Rio Tinto plc 10p ordinary

Purchase

153

66.2300 GBP

Rio Tinto plc 10p ordinary

Purchase

151

66.4724 GBP

ADR

Purchase

144

90.5150 USD

Rio Tinto plc 10p ordinary

Purchase

142

66.5500 GBP

ADR

Purchase

140

90.4900 USD

Rio Tinto plc 10p ordinary

Purchase

138

66.3974 GBP

Rio Tinto plc 10p ordinary

Purchase

135

66.9400 GBP

ADR

Purchase

130

91.5000 USD

Rio Tinto plc 10p ordinary

Purchase

128

67.4200 GBP

Rio Tinto plc 10p ordinary

Purchase

123

66.4587 GBP

Rio Tinto plc 10p ordinary

Purchase

122

67.3200 GBP

Rio Tinto plc 10p ordinary

Purchase

113

66.8700 GBP

Rio Tinto plc 10p ordinary

Purchase

106

66.3500 GBP

Rio Tinto plc 10p ordinary

Purchase

104

66.9500 GBP

Rio Tinto plc 10p ordinary

Purchase

100

66.8800 GBP

ADR

Purchase

100

90.4600 USD

Rio Tinto plc 10p ordinary

Purchase

100

66.8659 GBP

ADR

Purchase

100

91.5700 USD

ADR

Purchase

100

90.4300 USD

Rio Tinto plc 10p ordinary

Purchase

97

66.8230 GBP

Rio Tinto plc 10p ordinary

Purchase

96

67.0500 GBP

Rio Tinto plc 10p ordinary

Purchase

89

66.9300 GBP

Rio Tinto plc 10p ordinary

Purchase

79

67.4100 GBP

ADR

Purchase

74

91.6824 USD

Rio Tinto plc 10p ordinary

Purchase

74

66.3406 GBP

ADR

Purchase

69

90.4805 USD

Rio Tinto plc 10p ordinary

Purchase

63

66.2000 GBP

Rio Tinto plc 10p ordinary

Purchase

49

76.4400 EUR

Rio Tinto plc 10p ordinary

Purchase

46

77.1000 EUR

Rio Tinto plc 10p ordinary

Purchase

40

66.4200 GBP

Rio Tinto plc 10p ordinary

Purchase

33

67.0100 GBP

ADR

Purchase

26

90.7548 USD

Rio Tinto plc 10p ordinary

Purchase

20

66.9900 GBP

ADR

Purchase

18

90.4890 USD

Rio Tinto plc 10p ordinary

Purchase

15

66.8950 GBP

Rio Tinto plc 10p ordinary

Purchase

15

66.3400 GBP

Rio Tinto plc 10p ordinary

Purchase

12

66.4700 GBP

ADR

Purchase

8

91.3530 USD

ADR

Purchase

5

91.1040 USD

Rio Tinto plc 10p ordinary

Purchase

1

66.4000 GBP

Rio Tinto plc 10p ordinary

Purchase

1

66.7800 GBP

Rio Tinto plc 10p ordinary

Sale

264,557

66.7603 GBP

Rio Tinto plc 10p ordinary

Sale

245,981

66.7502 GBP

Rio Tinto plc 10p ordinary

Sale

183,287

66.7600 GBP

ADR

Sale

101,246

91.3557 USD

Rio Tinto plc 10p ordinary

Sale

100,000

66.8115 GBP

Rio Tinto plc 10p ordinary

Sale

64,152

66.1709 GBP

Rio Tinto plc 10p ordinary

Sale

56,603

66.7549 GBP

ADR

Sale

55,861

91.4295 USD

ADR

Sale

43,029

91.4351 USD

Rio Tinto plc 10p ordinary

Sale

42,768

65.6357 GBP

Rio Tinto plc 10p ordinary

Sale

42,439

66.8707 GBP

ADR

Sale

40,686

91.1433 USD

Rio Tinto plc 10p ordinary

Sale

39,640

66.8192 GBP

ADR

Sale

30,077

91.1254 USD

Rio Tinto plc 10p ordinary

Sale

27,000

66.9800 GBP

ADR

Sale

23,295

91.1988 USD

Rio Tinto plc 10p ordinary

Sale

22,722

66.8305 GBP

ADR

Sale

17,809

91.3682 USD

ADR

Sale

15,883

91.4106 USD

Rio Tinto plc 10p ordinary

Sale

14,372

66.9599 GBP

ADR

Sale

13,556

91.4239 USD

Rio Tinto plc 10p ordinary

Sale

13,495

67.1072 GBP

ADR

Sale

10,698

91.6144 USD

Rio Tinto plc 10p ordinary

Sale

10,196

66.9006 GBP

Rio Tinto plc 10p ordinary

Sale

9,876

77.0415 EUR

Rio Tinto plc 10p ordinary

Sale

9,100

66.9314 GBP

Rio Tinto plc 10p ordinary

Sale

8,875

66.8339 GBP

Rio Tinto plc 10p ordinary

Sale

8,836

66.8494 GBP

Rio Tinto plc 10p ordinary

Sale

8,511

66.8740 GBP

Rio Tinto plc 10p ordinary

Sale

8,029

66.9755 GBP

ADR

Sale

7,309

91.6252 USD

ADR

Sale

7,295

91.7770 USD

Rio Tinto plc 10p ordinary

Sale

7,250

66.9177 GBP

Rio Tinto plc 10p ordinary

Sale

7,217

66.8190 GBP

Rio Tinto plc 10p ordinary

Sale

6,971

66.9418 GBP

Rio Tinto plc 10p ordinary

Sale

6,543

66.8760 GBP

Rio Tinto plc 10p ordinary

Sale

6,496

66.9227 GBP

Rio Tinto plc 10p ordinary

Sale

6,442

66.8711 GBP

Rio Tinto plc 10p ordinary

Sale

6,442

66.7675 GBP

Rio Tinto plc 10p ordinary

Sale

5,987

66.9802 GBP

Rio Tinto plc 10p ordinary

Sale

5,508

66.3472 GBP

Rio Tinto plc 10p ordinary

Sale

5,009

66.7716 GBP

Rio Tinto plc 10p ordinary

Sale

4,974

66.5758 GBP

Rio Tinto plc 10p ordinary

Sale

4,758

66.5398 GBP

ADR

Sale

4,682

90.4700 USD

Rio Tinto plc 10p ordinary

Sale

4,679

66.9822 GBP

ADR

Sale

4,581

91.4409 USD

Rio Tinto plc 10p ordinary

Sale

4,562

66.9013 GBP

ADR

Sale

4,426

91.1083 USD

Rio Tinto plc 10p ordinary

Sale

4,401

66.8846 GBP

Rio Tinto plc 10p ordinary

Sale

4,101

66.9215 GBP

ADR

Sale

4,061

91.2922 USD

Rio Tinto plc 10p ordinary

Sale

3,560

66.9051 GBP

Rio Tinto plc 10p ordinary

Sale

3,553

66.7989 GBP

Rio Tinto plc 10p ordinary

Sale

3,441

66.8139 GBP

ADR

Sale

3,009

91.5888 USD

Rio Tinto plc 10p ordinary

Sale

3,004

66.9505 GBP

Rio Tinto plc 10p ordinary

Sale

2,831

66.9899 GBP

ADR

Sale

2,700

92.0000 USD

Rio Tinto plc 10p ordinary

Sale

2,632

66.9446 GBP

Rio Tinto plc 10p ordinary

Sale

2,604

67.0449 GBP

Rio Tinto plc 10p ordinary

Sale

2,564

67.0078 GBP

Rio Tinto plc 10p ordinary

Sale

2,481

66.7400 GBP

Rio Tinto plc 10p ordinary

Sale

2,404

66.9939 GBP

Rio Tinto plc 10p ordinary

Sale

2,146

66.8639 GBP

Rio Tinto plc 10p ordinary

Sale

2,026

66.7150 GBP

ADR

Sale

2,022

91.3509 USD

ADR

Sale

1,810

91.5048 USD

Rio Tinto plc 10p ordinary

Sale

1,676

67.3720 GBP

Rio Tinto plc 10p ordinary

Sale

1,636

66.8076 GBP

Rio Tinto plc 10p ordinary

Sale

1,603

66.8459 GBP

Rio Tinto plc 10p ordinary

Sale

1,564

66.8078 GBP

ADR

Sale

1,347

91.5657 USD

ADR

Sale

1,336

91.5935 USD

ADR

Sale

1,299

91.4158 USD

ADR

Sale

1,235

91.8879 USD

ADR

Sale

1,235

91.0738 USD

ADR

Sale

1,156

91.2380 USD

Rio Tinto plc 10p ordinary

Sale

1,126

66.9578 GBP

Rio Tinto plc 10p ordinary

Sale

1,100

6684.9618 GBP

Rio Tinto plc 10p ordinary

Sale

1,070

66.7581 GBP

Rio Tinto plc 10p ordinary

Sale

1,022

66.7940 GBP

ADR

Sale

1,019

91.8947 USD

Rio Tinto plc 10p ordinary

Sale

1,003

66.8145 GBP

ADR

Sale

950

90.5532 USD

Rio Tinto plc 10p ordinary

Sale

924

67.1342 GBP

Rio Tinto plc 10p ordinary

Sale

854

76.8016 EUR

Rio Tinto plc 10p ordinary

Sale

754

66.6948 GBP

Rio Tinto plc 10p ordinary

Sale

750

66.6300 GBP

Rio Tinto plc 10p ordinary

Sale

731

67.0622 GBP

Rio Tinto plc 10p ordinary

Sale

728

66.6584 GBP

Rio Tinto plc 10p ordinary

Sale

725

66.9608 GBP

Rio Tinto plc 10p ordinary

Sale

677

66.9797 GBP

Rio Tinto plc 10p ordinary

Sale

665

66.5300 GBP

ADR

Sale

655

90.5500 USD

Rio Tinto plc 10p ordinary

Sale

600

66.3432 GBP

Rio Tinto plc 10p ordinary

Sale

598

66.5222 GBP

Rio Tinto plc 10p ordinary

Sale

572

67.0750 GBP

ADR

Sale

567

90.5200 USD

Rio Tinto plc 10p ordinary

Sale

503

66.8500 GBP

Rio Tinto plc 10p ordinary

Sale

499

66.8700 GBP

Rio Tinto plc 10p ordinary

Sale

472

67.2400 GBP

ADR

Sale

467

90.5378 USD

Rio Tinto plc 10p ordinary

Sale

466

66.9385 GBP

Rio Tinto plc 10p ordinary

Sale

461

66.8786 GBP

Rio Tinto plc 10p ordinary

Sale

446

66.5421 GBP

Rio Tinto plc 10p ordinary

Sale

390

66.6119 GBP

ADR

Sale

388

91.0774 USD

Rio Tinto plc 10p ordinary

Sale

376

66.4500 GBP

Rio Tinto plc 10p ordinary

Sale

361

66.4102 GBP

Rio Tinto plc 10p ordinary

Sale

350

67.0711 GBP

Rio Tinto plc 10p ordinary

Sale

335

66.2500 GBP

Rio Tinto plc 10p ordinary

Sale

310

66.2990 GBP

ADR

Sale

300

91.8950 USD

Rio Tinto plc 10p ordinary

Sale

296

67.0568 GBP

Rio Tinto plc 10p ordinary

Sale

294

66.7749 GBP

Rio Tinto plc 10p ordinary

Sale

271

66.3091 GBP

Rio Tinto plc 10p ordinary

Sale

262

66.9298 GBP

Rio Tinto plc 10p ordinary

Sale

262

66.8615 GBP

Rio Tinto plc 10p ordinary

Sale

257

67.1900 GBP

Rio Tinto plc 10p ordinary

Sale

255

67.0086 GBP

Rio Tinto plc 10p ordinary

Sale

253

66.8925 GBP

ADR

Sale

245

91.8746 USD

Rio Tinto plc 10p ordinary

Sale

231

66.9507 GBP

Rio Tinto plc 10p ordinary

Sale

216

66.8638 GBP

Rio Tinto plc 10p ordinary

Sale

207

67.0400 GBP

Rio Tinto plc 10p ordinary

Sale

204

66.9300 GBP

Rio Tinto plc 10p ordinary

Sale

200

66.3800 GBP

ADR

Sale

200

92.1300 USD

ADR

Sale

200

91.6700 USD

ADR

Sale

200

91.5500 USD

Rio Tinto plc 10p ordinary

Sale

187

66.7217 GBP

Rio Tinto plc 10p ordinary

Sale

177

66.9325 GBP

Rio Tinto plc 10p ordinary

Sale

160

66.3600 GBP

Rio Tinto plc 10p ordinary

Sale

149

66.9644 GBP

ADR

Sale

144

92.1200 USD

Rio Tinto plc 10p ordinary

Sale

142

66.5500 GBP

ADR

Sale

138

91.6813 USD

Rio Tinto plc 10p ordinary

Sale

135

66.9400 GBP

Rio Tinto plc 10p ordinary

Sale

135

66.5250 GBP

Rio Tinto plc 10p ordinary

Sale

134

67.0600 GBP

Rio Tinto plc 10p ordinary

Sale

131

66.7312 GBP

ADR

Sale

130

91.5000 USD

ADR

Sale

129

91.8626 USD

Rio Tinto plc 10p ordinary

Sale

128

67.4200 GBP

Rio Tinto plc 10p ordinary

Sale

121

66.8790 GBP

Rio Tinto plc 10p ordinary

Sale

113

67.2000 GBP

ADR

Sale

107

91.3100 USD

Rio Tinto plc 10p ordinary

Sale

106

66.3500 GBP

Rio Tinto plc 10p ordinary

Sale

104

66.9500 GBP

Rio Tinto plc 10p ordinary

Sale

90

66.8400 GBP

Rio Tinto plc 10p ordinary

Sale

88

67.2025 GBP

Rio Tinto plc 10p ordinary

Sale

84

66.4928 GBP

Rio Tinto plc 10p ordinary

Sale

79

67.4100 GBP

Rio Tinto plc 10p ordinary

Sale

73

66.9659 GBP

Rio Tinto plc 10p ordinary

Sale

73

66.8892 GBP

Rio Tinto plc 10p ordinary

Sale

72

67.2300 GBP

Rio Tinto plc 10p ordinary

Sale

71

66.5000 GBP

Rio Tinto plc 10p ordinary

Sale

59

66.9750 GBP

Rio Tinto plc 10p ordinary

Sale

49

76.4400 EUR

Rio Tinto plc 10p ordinary

Sale

47

66.8200 GBP

ADR

Sale

46

92.0400 USD

Rio Tinto plc 10p ordinary

Sale

45

66.8580 GBP

ADR

Sale

45

91.6238 USD

ADR

Sale

37

91.6824 USD

ADR

Sale

36

90.4890 USD

Rio Tinto plc 10p ordinary

Sale

35

66.3186 GBP

ADR

Sale

34

91.6088 USD

Rio Tinto plc 10p ordinary

Sale

33

67.0110 GBP

Rio Tinto plc 10p ordinary

Sale

33

67.0100 GBP

ADR

Sale

30

91.9366 USD

Rio Tinto plc 10p ordinary

Sale

29

66.4450 GBP

Rio Tinto plc 10p ordinary

Sale

29

66.0351 GBP

Rio Tinto plc 10p ordinary

Sale

18

66.3533 GBP

Rio Tinto plc 10p ordinary

Sale

17

66.2879 GBP

Rio Tinto plc 10p ordinary

Sale

16

66.3400 GBP

Rio Tinto plc 10p ordinary

Sale

15

66.8950 GBP

Rio Tinto plc 10p ordinary

Sale

12

66.7733 GBP

Rio Tinto plc 10p ordinary

Sale

11

66.7545 GBP

ADR

Sale

8

91.3530 USD

ADR

Sale

5

91.4600 USD

ADR

Sale

5

90.6600 USD

ADR

Sale

3

91.4000 USD

ADR

Sale

2

90.6400 USD

Rio Tinto plc 10p ordinary

Sale

1

66.7800 GBP

ADR

Sale

1

90.6800 USD

(b)

Cash-settled derivative transactions

Class of relevant security

Product description

Nature of dealing

Number of reference securities

Price per unit

Rio Tinto Limited ordinary

SWAP

Decreasing Long

12,207

149.6372 USD

Rio Tinto plc 10p ordinary

SWAP

Decreasing Short

14,392

64.8326 USD

Rio Tinto plc 10p ordinary

SWAP

Decreasing Short

16,087

66.8063 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Short

262

66.8614 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

42,768

65.6356 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

29

66.0350 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

5,508

66.3472 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

2,124

66.3818 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

1,576

66.3819 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

417

66.4155 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

21,555

66.4856 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

84

66.4928 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

2,018

66.6219 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

754

66.6948 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

278

66.7078 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

187

66.7217 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

131

66.7312 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

11

66.7546 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

56,603

66.7549 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

155,492

66.7600 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

264,557

66.7603 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

6,442

66.7675 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

43

66.7774 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

430

66.7940 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

1,636

66.8076 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

69

66.8091 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

100,000

66.8115 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

3,441

66.8139 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

145

66.8144 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

66

66.8145 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

8,875

66.8339 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

8,836

66.8494 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

400

66.8539 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

2,146

66.8639 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

386

66.8700 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

42,439

66.8707 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

6,442

66.8711 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

6,543

66.8760 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

1,256

66.8784 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

121

66.8790 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

4,401

66.8846 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

16,412

66.8847 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

3,560

66.9051 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

22,534

66.9094 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

8,606

66.9307 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

466

66.9385 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

6,971

66.9418 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

494

66.9447 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

1,126

66.9578 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

14,372

66.9599 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

8,029

66.9755 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

677

66.9797 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

5,987

66.9802 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

2,404

66.9939 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

350

67.0711 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

88

67.2025 GBP

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

9,876

77.0415 EUR

Rio Tinto plc 10p ordinary

SWAP

Increasing Long

9

77.1000 EUR

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

1,215

66.0433 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

153

66.2300 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

7,707

66.3404 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

74

66.3406 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

4,315

66.3700 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

222

66.3900 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

1

66.3903 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

138

66.3974 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

4,752

66.4083 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

123

66.4587 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

9,755

66.5279 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

21,384

66.5828 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

7,450

66.6837 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

28,003

66.7200 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

19,974

66.7332 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

7,962

66.7600 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

787

66.7633 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

2,038

66.7648 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

5,571

66.7653 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

66,879

66.7809 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

4,040

66.8271 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

10,355

66.8379 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

831

66.8913 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

1,252

66.9143 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

125

66.9306 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

7,225

66.9520 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

224

66.9585 GBP

Rio Tinto plc 10p ordinary

SWAP

Decreasing Long

2,129

77.0177 EUR

Rio Tinto plc 10p ordinary

SWAP

Opening Long

27,000

66.9800 GBP

Rio Tinto plc 10p ordinary

SWAP

Closing Long

23,104

66.7600 GBP

Rio Tinto plc 10p ordinary

CFD

Decreasing Short

6,931

66.5605 GBP

Rio Tinto plc 10p ordinary

CFD

Decreasing Short

15,044

66.7383 GBP

Rio Tinto plc 10p ordinary

CFD

Decreasing Short

73,201

66.7510 GBP

Rio Tinto plc 10p ordinary

CFD

Opening Long

287,985

66.7600 GBP

Rio Tinto plc 10p ordinary

CFD

Increasing Long

31,831

66.9778 GBP

Rio Tinto plc 10p ordinary

CFD

Increasing Long

1,209

67.0787 GBP

Rio Tinto plc 10p ordinary

CFD

Increasing Long

1,676

67.3720 GBP

Rio Tinto plc 10p ordinary

CFD

Increasing Long

151

76.6498 EUR

Rio Tinto plc 10p ordinary

CFD

Increasing Long

694

76.8210 EUR

Rio Tinto plc 10p ordinary

CFD

Decreasing Long

144,175

66.7600 GBP

Rio Tinto plc 10p ordinary

CFD

Decreasing Long

25,375

66.9548 GBP

Rio Tinto plc 10p ordinary

CFD

Decreasing Long

9,448

67.0204 GBP

Rio Tinto plc 10p ordinary

CFD

Decreasing Long

49

76.4400 EUR

Rio Tinto plc 10p ordinary

CFD

Decreasing Long

145

76.6454 EUR

Rio Tinto plc 10p ordinary

CFD

Decreasing Long

46

77.1000 EUR

(c)

Stock-settled derivative transactions (including options)

(i)

Writing, selling, purchasing or varying

Class of relevant security

Product description

Writing, purchasing, selling, varying etc

Number of securities to which option relates

Exercise price per unit

Type

Expiry date

Option money paid/ received per unit

Rio Tinto plc ADR

Call Options

Selling

345,002

81.7604 USD

European

25 Jan 2027

0.0438 USD

Rio Tinto plc ADR

Call Options

Selling

414,010

77.6756 USD

European

25 Jan 2027

0.0207 USD

Rio Tinto plc ADR

Call Options

Selling

414,008

77.5100 USD

European

25 Jan 2027

0.0196 USD

(ii)

Exercise

Class of relevant security

Product description

Exercising/ exercised against

Number of securities

Exercise price per unit

(d)

Other dealings (including subscribing for new securities)

Class of relevant security

Nature of Dealings

Details

Price per unit (if applicable)

4.

OTHER INFORMATION

(a)

Indemnity and other dealings arrangements

Details of any indemnity or option arrangement, or any agreement or understanding, formal or informal, relating to relevant securities which may be an inducement to deal or refrain from dealing entered into by the person making the disclosure and any party to the offer or any person acting in concert with a party to the offer:

NONE

(b)

Agreements, arrangements or understandings relating to options or derivatives

Details of any agreement, arrangement or understanding, formal or informal, between the person making the disclosure and any other person relating to: (i) the voting rights of any relevant securities under any option; or (ii) the voting rights of future acquisition or disposal of any relevant securities to which any derivative is referenced:

NONE

(c)

Attachments

Is a Supplemental Form 8 (Open Positions) attached?

YES

Date of disclosure:

27 Jan 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213

SUPPLEMENTAL FORM 8 (OPEN POSITIONS)

DETAILS OF OPEN OPTION AND DERIVATIVE POSITIONS, AGREEMENTS TO

PURCHASE OR SELL ETC.

Note 5(i) on Rule 8 of the Takeover Code (the "Code")

1. KEY INFORMATION

Identity of the person whose positions/dealings are being disclosed:

Barclays PLC.

Name of offeror/offeree in relation to whose relevant securities this from relates:

RIO TINTO PLC AND RIO TINTO LIMITED

2. OPTIONS AND DERIVATIVES

Class of relevant security

Product description

Writing, purchasing, selling, varying etc

Number of securities to which option relates

Exercise price per unit

Type

Expiry date

Rio Tinto plc 10p ordinary

Call Options

Written

-142,508

57.9288

European

20 Oct 2026

Rio Tinto plc ADR

Put Options

Purchased

-500

63.0000

American

15 Jan 2027

Rio Tinto plc ADR

Put Options

Purchased

-400

60.0000

American

15 Jan 2027

Rio Tinto plc ADR

Call Options

Purchased

1,000

65.0000

American

15 Jan 2027

Rio Tinto plc ADR

Call Options

Written

-414,010

77.6756

European

25 Jan 2027

Rio Tinto plc ADR

Call Options

Written

-414,008

77.5100

European

25 Jan 2027

Rio Tinto plc ADR

Call Options

Written

-345,002

81.7604

European

25 Jan 2027

Rio Tinto plc ADR

Put Options

Written

30,000

48.0000

American

15 Jan 2027

3. AGREEMENTS TO PURCHASE OR SELL ETC.

Full details should be given so that the nature of the interest or position can be fully understood: