Rule 8.3 - RIO TINTO PLC
FORM 8.3
DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
(Rule 8.3 of the City Code on Takeovers and Mergers)
1. KEY INFORMATION
Name of person dealing BARCLAYS PLC
(Note 1)
Company dealt in RIO TINTO
Class of relevant security ORD GBP0.10
to which the dealings being
disclosed relate (Note 2)
Date of dealing 19 December 2007
2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE
(a) Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)
Long Short
Number (%) Number (%)
(1) Relevant 47,870,130 4.80% 2,420,135 0.24%
securities
(2) Derivatives 2,285,767 0.23% 217,623 0.02%
(other than
options)
(3) Options and 204,131 0.02% 1,303,531 0.13%
agreements to
purchase/sell
Total 50,360,028 5.05% 3,941,289 0.40%
(b) Interests and short positions in relevant securities of the company, other
than the class dealt in (Note 3)
Class of Long Short
relevant
security:
Number (%) Number (%)
(1) Relevant
securities
(2) Derivatives
(other than
options)
(3) Options and
agreements to
purchase/sell
Total
(c) Rights to subscribe (Note 3)
Class of relevant security: Details
3. DEALINGS (Note 4)
(a) Purchases and sales
Purchase/sale Number of Securities Price per unit
(GBP)
Purchase 3,626 50.9657
Purchase 500 50.4200
Purchase 3,100 50.2046
Purchase 16,516 50.4700
Purchase 2,171 50.2682
Purchase 4,800 50.4623
Purchase 60 50.3700
Purchase 1,800 50.9769
Purchase 3,872 50.7500
Purchase 163 51.1000
Purchase 6,042 50.2363
Purchase 57,905 50.2220
Purchase 278 51.1000
Purchase 57,946 50.6509
Purchase 57,946 50.6509
Purchase 1,500 50.4200
Purchase 169 50.8834
Purchase 466 50.8173
Purchase 588 50.7500
Purchase 500 50.4200
Purchase 500 50.4200
Purchase 250 50.4200
Purchase 76,856 50.2980
Purchase 330 50.4200
Purchase 100 50.4200
Purchase 6,042 50.2363
Purchase 424 50.0685
Purchase 3,862 50.7500
Purchase 31,536 50.7500
Purchase 12,868 48.7378
Purchase 29,317 50.8127
Purchase 500 50.4200
Purchase 3,626 50.9657
Purchase 21,234 50.5324
Purchase 279 51.1000
Sale 57,946 50.6509
Sale 209 50.3450
Sale 150 50.3450
Sale 2,171 50.2636
Sale 95 50.2100
Sale 29,317 50.8127
Sale 5,008 50.7500
Sale 70 50.3450
Sale 130 50.4075
Sale 200 50.3850
Sale 3,626 50.9657
Sale 169 50.8758
Sale 12,293 50.7500
Sale 21,234 50.5233
Sale 466 50.8122
Sale 3,862 50.7500
Sale 76,856 50.2980
Sale 425 50.1200
Sale 57,905 50.2220
Sale 735 50.7500
Sale 16,516 50.4609
Sale 12,868 48.7378
Sale 424 50.0635
Sale 60 50.3928
Sale 3,100 50.2046
Sale 1,800 50.9723
Sale 160 50.3450
Sale 76,856 50.2980
Sale 3,100 50.2046
Sale 6,042 50.2363
Sale 316 50.7500
Sale 250 50.3400
Sale 151 50.7500
Sale 4,800 50.4547
(b) Derivatives transactions (other than options)
Product name, Long/Short Number of Price per
(e.g. CFD) (Note 6) Securities unit (GBP)
CFD Short 424 50.0685
CFD Short 2171 50.2681
CFD Short 4800 50.4622
CFD Short 21234 50.5323
CFD Short 29317 50.8126
CFD Short 3626 50.9657
CFD Long 3100 50.2046
CFD Long 57905 50.2219
CFD Long 16516 50.4608
CFD Long 466 50.8122
CFD Long 169 50.8757
CFD Long 1800 50.9722
(c) Options transactions in respect of existing securities
(i) Writing, selling, purchasing or varying
Product name, Writing, Number of Exercise Type, e.g. Expiry Option money
e.g. call selling, securities to price American, date paid/received
option purchasing, which the option European etc. per unit (GBP)
varying etc. relates (GBP)
(ii) Exercising
Product name, e.g. Number of Exercise price per
call option securities unit (Note 5)
(d) Other dealings (including new securities) (Note 4)
Nature of transaction Details Price per unit
(Note 8) (if applicable)
(Note 5)
4. OTHER INFORMATION
None
Agreements, arrangements or understandings relating to options or derivatives
Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced. If none, this should be stated.
Is a Supplemental Form 8 attached? (Note 9) YES
Date of disclosure 20 December 2007
Contact name Geoff Smith
Telephone number 020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)
Notes
The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk
SUPPLEMENTAL FORM 8
DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)
OPEN POSITIONS (Note 1)
Product name, Written or Number of securities Exercise price Type, e.g. Expiry date
e.g. call option purchased to which the option (Note 2) American,
or derivative relates European etc.
Option Purchased 250 3,300.0000 EURO 21/12/2007
Option Purchased -1,000 3,500.0000 EURO 21/12/2007
Option Purchased -500 4,400.0000 EURO 21/12/2007
Option Purchased -350 5,200.0000 EURO 21/12/2007
Option Purchased -306 4,200.0000 EURO 21/12/2007
Option Purchased -300 3,800.0000 EURO 20/06/2008
Option Purchased -300 6,000.0000 EURO 21/12/2007
Option Purchased -275 4,800.0000 EURO 21/12/2007
Option Purchased -250 2,500.0000 EURO 20/06/2008
Option Purchased -250 5,200.0000 EURO 20/03/2008
Option Purchased 50 5,400.0000 EURO 20/03/2008
Option Purchased 100 5,600.0000 EURO 18/01/2008
Option Purchased 125 4,400.0000 EURO 20/06/2008
Option Purchased -100,000 30.0000 AMER 20/06/2008
Option Purchased 250 3,000.0000 EURO 20/06/2008
Option Purchased -300,000 56.0000 AMER 15/02/2008
Option Purchased 250 3,800.0000 EURO 20/06/2008
Option Purchased 250 4,500.0000 EURO 21/12/2007
Option Purchased 250 6,000.0000 EURO 15/02/2008
Option Purchased 250 6,000.0000 EURO 15/02/2008
Option Purchased 275 5,000.0000 EURO 21/12/2007
Option Purchased 306 4,800.0000 EURO 21/12/2007
Option Purchased 350 4,600.0000 EURO 19/12/2008
Option Purchased 350 4,600.0000 EURO 19/12/2008
Option Purchased 450 3,500.0000 EURO 21/12/2007
Option Purchased 500 5,200.0000 EURO 21/12/2007
Option Purchased 200,000 60.0000 AMER 18/01/2008
Option Purchased -600,000 42.0000 AMER 21/12/2007
Option Purchased -300,000 52.0000 AMER 15/02/2008
Option Purchased 125 4,400.0000 EURO 20/06/2008
Notes
1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given.
Full details of any existing agreements to purchase or to sell should also be given on this form.
2. For all prices and other monetary amounts, the currency must be stated.
For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk