Bombardier Chooses Alcan's AIRWARE(TM) Technology for its CSeries Aircraft Program in the Framework of a Long-Term Agreement

PARIS, July 20, 2010 - Alcan Global ATI and Bombardier, one of the world's largest aircraft
manufacturers, have entered into a long-term agreement for the exclusive
supply of AIRWARE(TM), Alcan's advanced aluminum-lithium alloy technology,
to provide primary structure for the all-new CSeries aircraft. AIRWARE(TM)
will comprise more than 20% of all materials used in the CSeries aircraft.

AIRWARE(TM) technology, which is based on the mastering of low density
alloys, has helped Bombardier develop a high-strength, light, metallic
fuselage by combining sheets and extrusions to manufacture fuselage skins,
stringers, frames and floor beams. This contributes to significant
improvements in aircraft operating costs, fuel consumption and emissions
reduction.

"With AIRWARE(TM), we pave the way for a revolutionary utilization of
aluminum-based technologies to design lighter, greener aircraft, whilst
ensuring the highest level of reliability, which is a key requirement in the
aerospace industry," said Christophe Villemin, Alcan Global ATI President.
"Thanks to collaborative research and development, initiated with Bombardier
in 2007, Alcan has been chosen as an exclusive supplier of AIRWARE(TM) for
the CSeries aircraft program," continued Villemin.

Bombardier's single-aisle CSeries aircraft, which is designed for the
100- to 149-seat market segment, is expected to offer a 15(x) per cent cash
operating cost advantage over current in-production aircraft. Advanced
materials will contribute to the CSeries aircraft's 20% fuel consumption
advantage and reduced CO2 emissions.

AIRWARE(TM)'s low density, exceptional mechanical properties and
inherent electrical conductivity allows significant weight reductions
compared to competing materials. In addition, AIRWARE(TM)'s unparalleled
corrosion resistance, strength and behaviour predictability will all
contribute to easy maintenance of CSeries aircraft.

In line with Alcan and Bombardier's commitment to sustainability,
AIRWARE(TM) material removed during machining can be infinitely recycled
into new aircraft parts, as can all AIRWARE(TM) components when an aircraft
reaches the end of its commercial life.

"This long-term agreement demonstrates Alcan's leadership and commitment
to provide the aerospace industry with step-change turnkey solutions to
reach ever more challenging economic and environmental objectives,"
concluded Villemin.

About Alcan Global ATI

Alcan Global ATI employs approximately 3 500 people and has
manufacturing plants in Europe and North America. A world leader in the
production of aerospace plates, Alcan Global ATI provides its customers
with its entire portfolio of advanced lightweight aluminium solutions.
Thanks to its global R&D, manufacturing and commercial reach, Alcan Global
ATI is able to build long-term supply and innovative technology
partnerships with major aerospace leaders.

About Alcan Engineered Products

Alcan Engineered Products is a global sector-leader strongly committed
to developing innovative, value added aluminum products for a broad range of
civil and defense 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 across Europe, the Middle East, Africa, the Americas and the
Asia-Pacific region, Alcan Engineered Products is organized around
businesses dedicated to performance materials in the areas of aluminum
rolled products, extrusions and automotive structures, aluminum 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.

    CSeries is a trademark of Bombardier Inc. or its subsidiaries.

    (x) The CSeries aircraft is in the design phase. All data and
        specifications are estimates, subject to change in family strategy,
        branding, capacity, performance during the course of the design,
        manufacture and certification process. Performance has been
        estimated based on a 500-nm North American operating environment.

For further information: Rio Tinto Alcan Media Relations, Europe:
Eglantine Leroi, Tél. : +33-1-44-69-54-07, eglantine.leroi@clai2.com;
Rio Tinto Alcan Media Relations, Canada: Bryan Tucker, Tel: +1-514-848-8066,
bryan.tucker@riotinto.com; Alcan Global ATI: Laura Berneri, Tel.:
+33-1-57-00-21-34, laura.berneri@alcan.com;
Website: www.riotintoalcan.com

For further information: Rio Tinto Alcan Media Relations, Europe: Eglantine Leroi, Tél. : +33-1-44-69-54-07, eglantine.leroi at clai2.com; Rio Tinto Alcan Media Relations, Canada: Bryan Tucker, Tel: +1-514-848-8066, bryan.tucker at riotinto.com; Alcan Global ATI: Laura Berneri, Tel.: +33-1-57-00-21-34, laura.berneri at alcan.com