Alcoa and BYD Showcase 40% Lighter, All-Electric Transit Bus

Changsha, PRC – November 10, 2011: Alcoa and BYD have co-developed a new all-aluminum
space-frame and electric bus design that has reduced the weight of BYD’s 40-foot, transit, allelectric
Bus by 40 percent, or nearly one ton, versus the steel design. The first two new models of
the eBUS-12 were launched this week in Changsha City, Hunan Province, China. In addition to
reducing the weight of the bus body, BYD uses Alcoa forged wheels and Huck Spin(R) fasteners to
reduce overall bus weight by over 1.2 tons in total. The combined weight savings are expected to
improve the overall range of the electric bus by more than 10 percent. The bus has a range of over
300 kilometers (>188 miles) on a single battery charge.
BYD has orders to produce thousands of the electric buses for the China and Southeast Asia
markets and will export and potentially manufacture the buses globally depending on EV and bus
market growth. Hertz announced last week the first BYD eBUSs running in the US at Los Angeles’
LAX. Alcoa will be the supplier of the structural aluminum and of the forged aluminum wheels and
fasteners for the bus production. The new bus design builds on Alcoa’s capabilities in safe
transportation design, including automotive and ground transportation space frame technologies for
leading brands such as Ferrari and Audi. “It is impressive that we were able to drop more than 1.2
tons from the weight of BYD’s new electric bus compared to steel,” said Jinya Chen, President of
Alcoa’s Asia-Pacific region. “However, this design is about more than just weight — the new design
is durable, corrosion resistant, infinitely recyclable and expected to increase the range by at least 10
percent while withstanding the rigors of everyday city driving.”
“We are pleased to have worked with a global expert in transportation such as Alcoa as we began
work on this new electric bus program,” said Xie Shibin Vice President of BYD Auto Research
Institute. “Alcoa’s design and materials combined with our environmentally-friendly battery and
power-train make this new bus the best in the industry in terms of environmental-compliance,
direct-emissions, range, safety and performance.” For more information please visit us at
www.facebook.com/bydcompany , www.byd.com
About BYD
BYD is ranked #1 at the top of Bloomberg’s and BusinessWeek’s 2009 Tech 100 List
(http://www.businesswire.com/news/home/20100520006751/en/BYD-Tops-Bloomberg
Businessweek%E2%80%99s-12th-Annual-Tech ) and is the leading manufacturer of advanced,
environmentally-friendly battery technologies like the BYD’s Iron Phosphate battery used in BYD
electric vehicles and electric buses. BYD’s solar panels and LED Lighting systems have CEC, TUV/CE
and UL listings, and the company enjoys rapid growth in consumer electronics space and electrified
transportation sector manufacturing under its BYD brand. BYD is the fastest-growing Chinese automotive
and green energy technology enterprise. The Company trades on the Hong Kong Exchange (HKE) under the
ticker numbers (HK.0285 – BYD Electronics) and (HK.1211 – BYD Company Ltd.), as well as on the
Shenzhen Stock Exchange under the ticker number (002594 – BYD Company Ltd.). For more information,
visit www.byd.com , www.facebook.com/bydcompany or email pr@byd.com .
About ALCOA
Alcoa is the world’s leading producer of primary and fabricated aluminum, as well as the world’s largest
miner of bauxite and refiner of alumina. In addition to inventing the modern-day aluminum industry, Alcoa
innovation has been behind major milestones in the aerospace, automotive, packaging, building and
construction, commercial transportation, consumer electronics and industrial markets over the past 120 years.
Among the solutions Alcoa markets are flat-rolled products, hard alloy extrusions, and forgings, as well as
Alcoa® wheels, fastening systems, precision and investment castings, and building systems in addition to its
expertise in other light metals such as titanium and nickel-based super alloys. Sustainability is an integral part
of Alcoa’s operating practices and the product design and engineering it provides to customers. Alcoa has
been a member of the Dow Jones Sustainability Index for ten consecutive years and approximately 75 percent
of all of the aluminum ever produced since 1888 is still in active use today. Alcoa employs approximately
59,000 people in 31 countries across the world. More information can be found at www.alcoa.com.

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About bydcompany
Providing a fully vertically integrated solution for green energy technologies, producing electric cars using iron phosphate battery technology.Visit us at: http://www.facebook.com/bydcompany

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