SABESP informs reply to the Resolution 427 of ARSESP

             SABESP informs reply to the Resolution 427 of ARSESP

PR Newswire

SAO PAULO, Sept. 2, 2013

SAO PAULO, Sept. 2, 2013 /PRNewswire/ -- Companhia de Saneamento Basico do
Estado de Sao Paulo - SABESP("Company" - BM&FBovespa: SBSP3; NYSE: SBS),one
of the largest water and sewage service providers in the world based on the
number of customers,pursuant to CVM Rule nº 358 of January 3, 2002, publicly
informs that has filed on this date its reply to the Resolution 427 (8/2/2013)
of ARSESP – Sanitation and Energy Regulatory Agency of the State of Sao Paulo,
which maintained the suspension of the company's tariff revision.

ARSESP, through said resolution, requested Sabesp to provide a deadline to
reevaluate certain items of its Regulatory Asset Base – BRR and afterwards,
forwarded through an official letter, the items to be revised.

In reply, Sabesp has requested a three-month term to assess, clarify and make
the adjustments necessary to the Regulatory Asset Base - BRR.

Sabesp also informs that, in view of referred Resolution, it filed on August
16, 2013, a request for the Agency to authorize the tariff adjustment by
inflation, as it occurs every year in August/September. Such request has not
yet been answered by the Agency.

More details will be discussed on a conference call to be held this Friday,
September 6, at 2:00 p.m. in Portuguese and at 4:00 p.m. in English. (Brasilia

IR Contacts:

Mario Arruda Sampaio: (55 11) 3388-8664 (
Angela Beatriz Airoldi: (55 11) 3388-8793 (

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