Valdir Mendes Cardoso is the technical
manager of Altair Engineering do Brasil, and will oversee operations at the
new facility.

About Altair Engineering
Through product design consulting, advanced engineering software and high-
performance computing (HPC) technologies, Altair Engineering increases
innovation for clients around the globe.

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Altair Engineering Establishes Brazil Office

The toolset is a proven industry leader, and
delivers the fastest and most versatile meshing and assembly technologies for
finite-element and multi-body systems simulation.com.

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Marisa Guimaraes
Tel.

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"Altair has built a strong reputation for providing our customers with the
highest quality service in the industry," said James R. Having an office in
Brazil also recognizes that country's growing economy and its emergence as one
of the world's most vibrant design centers.altair .

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Altair(R) HyperWorks(R)
HyperWorks is a highly integrated framework of engineering tools that
provides complete, open-architecture computer-aided engineering (CAE) and
process automation support.

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Saneamento Basico do Estado de Sao Paulo (NYSE: SBS) (Bovespa: SBSP3), the
largest water and sewage utility company in the Americas and the third largest
in the world (in terms of number of customers), announces that the conference
calls to discuss first quarter 2005 (1Q05) results were rescheduled for
June 9, with all other information remaining as already previously announced .br

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Phone: +011 (55 11) 2101-1490
Conference ID code: SABESP

Conference Call in English
Thursday, June 9, 2005
12 pm -- U., Altair Engineering , Inc.

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Those
customers include strategic international accounts such as Fiat, Ford, GM,
John Deere , ArvinMeritor and Nokia.

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For detailed information about Altair, visit http://www.

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S. Founded in 1985 and privately held
with offices throughout 12 countries, Altair's unparalleled knowledge and
expertise in product development and manufacturing extend throughout North
America, Europe and Asia. The company's grid computing software,
PBS Professional(TM), is a workload management solution for HPC environments,
Linux clusters and desktop cycle harvesting that delivers an ROI within one
year.

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Conference Call in Portuguese
Thursday, June 9, 2005
10 am -- U.com.: (55 11) 3388-9135
E-mail: marisag@sabesp., a global
leader in innovative product development, advanced engineering software and
grid computing technology, today announced that it has established a regional
office in the city of Sao Caetano do Sul, Sao Paulo, Brazil.

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EDT
Phone: +1 (973) 935-2401
Conference ID code: 6075364 or SABESP

For additional information, please contact:
Sabesp Investor Relations
Mario Sampaio
Tel. As the developer of Altair(R) HyperWorks(R) - The
Engineering Framework for Product Design(TM), Altair is the leading provider
of high-end, open CAE software solutions for modeling, visualization,
optimization and process automation.

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SBS -- New Conference Call Date

Sao Paulo facility is latest evidence of company 's global expansion strategy

TROY, Mich. Altair
Engineering do Brasil will provide sales and technical support for the
company's HyperWorks(R) suite of advanced product design and engineering
software tools to regional manufacturers and the engineering community.

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SAO PAULO, Brazil, SABESP - Cia.: (55 11) 3388-8664
E-mail: maasampaio@sabesp. Scapa, president and
CEO of Altair Engineering . "The Sao Paulo office will enhance the level of
collaboration with our Brazilian customers that is so important to drive
innovation in product design and engineering."
The new facility is the twelfth Altair office worldwide and further
demonstrates Altair's energetic global growth strategy .