Cascal Confirms That Sembcorp Has Received Service of Process in Connection With Legal Action Filed in U.S. District Court on April 30, 2010

LONDON, May 5, 2010 - Cascal N.V. (NYSE: HOO) (the Company) today confirmed that Sembcorp has
received service of process in connection with the action the Company filed
on April 30, 2010 in the United States District Court for the Southern
District of New York claiming violations of U.S. securities laws and breach
of confidentiality agreements. The lawsuit seeks injunctive relief and
recovery of damages.

As stated in previous communications, the Board of Directors of Cascal
rejects Sembcorp's proposal as unacceptable and coercive, and recommends that
Cascal common shareholders take no action to respond to a below market tender
that Sembcorp Industries Ltd, a wholly owned subsidiary of Sembcorp Utilities
Pte Ltd ("Sembcorp"), said it intends to make.

About Cascal N.V.

Cascal provides water and wastewater services to its customers in eight
countries: the United Kingdom, South Africa, Indonesia, China, Chile, Panama,
Antigua and The Philippines. Cascal's customers are predominantly homes and
businesses representing a total population of approximately 4.7 million.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION LEGEND:

SECURITY HOLDERS SHOULD READ CASCAL N.V.'S SOLICITATION/RECOMMENDATION
STATEMENT WHEN IT IS AVAILABLE BECAUSE IT WILL CONTAIN IMPORTANT INFORMATION.
INVESTORS MAY OBTAIN THE RECOMMENDATION AND OTHER FILED DOCUMENTS FREE OF
CHARGE AT THE COMMISSION'S WEB SITE (www.sec.gov) AS WELL AS DIRECTLY
FROM CASCAL N.V. BY CONTACTING JEFFREY GOLDBERGER, KCSA STRATEGIC
COMMUNICATIONS, 880 THIRD AVENUE, NEW YORK, NEW YORK 10022, +1-212-896-1249,
JGOLDBERGER@KCSA.COM.

Learn more at www.cascal.co.uk

Forward-looking statements

This release contains forward-looking statements that are not guarantees
of future performance. There are important factors, many of which are outside
of our control, that could cause actual results to differ materially from
those expressed or implied by such forward-looking statements including:
general economic business conditions, unfavorable weather conditions, housing
and population growth trends, changes in energy prices and taxes,
fluctuations with currency exchange rates, changes in regulations or
regulatory treatment, changes in environmental compliance and water quality
requirements, availability and the cost of capital, the success of growth
initiatives, acquisitions and our ability to successfully integrate acquired
companies and other factors discussed in our filings with the Securities and
Exchange Commission, including under Risk Factors in our Form 20-F for the
fiscal year ended March 31, 2009, filed with the SEC on July 1,2009. We do
not undertake and have no obligation to publicly update or revise any
forward-looking statement.

    Investor Contacts:                          Media Contact:
    KCSA Strategic Communications               KCSA Strategic Communications
    Jeffrey Goldberger / Marybeth Csaby         Lewis Goldberg
    +1-212-896-1249 / +1-212-896-1236           +1-212-896-1216
    jgoldberger@kcsa.com / mcsaby@kcsa.com      lgoldberg@kcsa.com

Investor Contacts: Jeffrey Goldberger, +1-212-896-1249, jgoldberger at kcsa.com, or Marybeth Csaby, +1-212-896-1236, mcsaby at kcsa.com, or Media Contact: Lewis Goldberg, +1-212-896-1216, lgoldberg at kcsa.com, all of KCSA Strategic Communications