Alcan Specialty Sheet Showcases its Unique and Latest Innovation Solution - Solar Surface(R) Selfclean - at INTERSOLAR 2010

PARIS, June 9, 2010 - Alcan Specialty Sheet, part of Alcan Engineered Products - a
business unit of Rio Tinto - launches its new Solar Surface(R) Selfclean at
the coming edition of the INTERSOLAR trade show in Munich, Germany, from 9th
to 11th June 2010. This leading-edge technology fully enriches its
market-proven Solar Surface(R) range of solutions.

The new Solar Surface(R) Selfclean solution will be proposing
two technologies:

    - Solar Surface(R) Selfclean PC : photocatalytic and hydrophilic
      reflector surface

    - Solar Surface(R) Selfclean eZ : superhydrophobic reflector surface

Covering a large spectrum of applications required by the
solar industry markets (including substrates for absorbers & Solar Surface(R)
reflectors materials), Alcan Specialty Sheet moves one step further in
confirming its leading position as aluminium solutions provider.

"This innovation further strengthens our leadership as
provider of intelligent aluminium-based solutions to the solar industry. Our
close and longstanding relationship with our customers combined with our
recognized outstanding expertise in R&D, enabled Alcan Specialty Sheet to
develop a unique Solar Surface(R) solution for the increasingly complex solar
market needs" said Thierry Mootz, Director Sales and Marketing Automotive and
Customized Solutions.

Recognized a strategic technological breakthrough, the Solar
Surface(R) Selfclean offer has been chosen to be highlighted during the
prestigious Intersolar Innovation Exchange (in Hall C3).

Aluminium is a critical material to address the solar
industry's challenges. The high reflectivity and formability of aluminium
mirrors with nano-particle sol-gel protection is today an industry standard
for a number of solar collector technologies.

"Alcan Specialty Sheet's new Solar Surface(R) Selfclean
coatings, incorporating active nano-particles and silane compounds, provides
additional performance and functionality by chemically breaking down dirt and
contaminants in contact with the surface, thus ensuring that the solar
mirrors remain clean and efficient, always", emphasized Philippe Lequeu,
Director Technology & Innovation.

Note to editors: Alcan Specialty Sheet's exhibition will be
open to visitors and the press in Hall C1, Booth 370 from 9:00 a.m. - 6:00
p.m. on June 9/10 and from 9:00 a.m. - 5:00 p.m. on June 11.

About Alcan Specialty Sheet

Alcan Specialty Sheet is a key player in the European rolling
industry, occupying leading market positions for packaging, automotive, and
customised industrial sheet solutions including high quality functional
surface products. It has world-class rolling and recycling operations in
Neuf-Brisach (France) and Singen (Germany), dedicated R&D capabilities in
Voreppe (France) and Neuhausen (Switzerland), and employs over 2,000 people.

About Alcan Engineered Products

Alcan Engineered Products is a global sector-leader strongly
committed to developing innovative, value-added aluminium products for a
broad range of markets and applications, including aerospace, mass
transportation, automotive, packaging, energy and building. With around
11,000 employees located in 27 countries and a commercial presence in more
than 60 markets worldwide, Alcan Engineered Products is organised around
businesses dedicated to performance materials in the areas of aluminium
rolled products, extrusions and automotive structures, aluminium cable and
international trade. Alcan Engineered Products is headquartered in Paris,
France.

About Rio Tinto

Rio Tinto is a leading international mining group
headquartered in the UK, combining Rio Tinto plc, a London and NYSE listed
company, and Rio Tinto Limited, which is listed on the Australian Securities
Exchange.

Rio Tinto's business is finding, mining, and processing
mineral resources. Major products are aluminium, copper, diamonds, energy
(coal and uranium), gold, industrial minerals (borax, titanium dioxide, salt,
talc) and iron ore. Activities span the world but are strongly represented in
Australia and North America with significant businesses in South America,
Asia, Europe and southern Africa.

For further information, please contact:

    Alcan Specialty Sheet         Alcan Engineered Products, Paris
    Laurette Zaeh-Petit           Christine Chanet
    Tel.: +33-3-89-72-41-68       Tel.: +33-1-57-00-21-65
    laurette.zaeh-petit@alcan.com christine.chanet@alcan.com

For further information, please contact: Alcan Specialty Sheet, Laurette Zaeh-Petit, Tel.: +33-3-89-72-41-68, laurette.zaeh-petit at alcan.com; Alcan Engineered Products, Paris, Christine Chanet, Tel.: +33-1-57-00-21-65, christine.chanet at alcan.com