Jacobs Receives Another Contract from Minera Chinalco

  Jacobs Receives Another Contract from Minera Chinalco

 Reiterates Commitment to Growing Mining & Minerals Business in South America

Business Wire

PASADENA, Calif. -- May 7, 2013

Jacobs Engineering Group Inc. (NYSE:JEC) announced today that it received a
contract from Minera Chinalco Peru S.A. to perform a feasibility study for the
expansion of its Toromocho copper mining facilities in the Morococha District
of Peru.

Officials did not disclose the contract value, but noted that the project is
expected to be executed out of Jacobs’ Lima, Peru office with assistance from
its Santiago, Chile and Tucson, Ariz., US offices.

Jacobs has been working on the Toromocho copper project since 2006. The mine
is located at an altitude of 14,700 to 16,400 feet. The current phase of
engineering, procurement and construction management is nearing completion.
Under the original design, the facility is capable of treating 117,200 tons of
ore per day and producing in excess of 210,000 tons of copper annually, plus
byproducts of silver and molybdenum.

Major equipment required for the proposed capacity expansion includes apron
feeders, a conveyor system for mill feed, a semi-autogenous grinding (SAG)
mill, a ball mill and cyclones, flotation cells, a tailings thickener, and all
associated equipment. The existing plant layout allows for the integration of
new equipment required for the current expansion.

Jacobs Group Vice President Andy Kremer stated, "We are delighted to further
support Minera Chinalco on their proposed expansion. We have several years’
experience working as an integrated team on the Toromocho project. Given the
ongoing construction activities on site, the knowledge we have already
acquired will be extremely valuable as we consider optimum solutions and
tie-in designs needed to incorporate the planned expansion into the existing
facilities."

Minera Chinalco Perú S.A. is a subsidiary of Chinalco Mining Corporation
International (CMC). CMC is a company listed on the Hong Kong Stock Exchange
(stock code: 03668.HK). The Aluminum Corporation of China (CHINALCO),
headquartered in Beijing, is the ultimate and controlling shareholder of CMC.
CHINALCO is the second largest alumina producer and the third largest primary
aluminum producer worldwide.

Jacobs is one of the world’s largest and most diverse providers of technical,
professional, and construction services.

Statements made in this release that are not based on historical fact are
forward-looking statements. We base these forward-looking statements on
management’s current estimates and expectations as well as currently available
competitive, financial and economic data. Forward-looking statements, however,
are inherently uncertain. There are a variety of factors that could cause
business results to differ materially from our forward-looking statements.For
a description of some of the factors which may occur that could cause actual
results to differ from our forward-looking statements please refer to our 2012
Form 10-K, and in particular the discussions contained under Items 1 -
Business, 1A - Risk Factors, 3 - Legal Proceedings, and 7 - Management’s
Discussion and Analysis of Financial Condition and Results of Operations. We
do not undertake to update any forward-looking statements made herein.

Contact:

Jacobs Engineering Group Inc.
Michelle Jones, 626-578-6968