USAID Awards Tetra Tech $22 Million Contract for Biodiversity Conservation and Community Development in Madagascar

Tetra Tech, Inc. (NASDAQ: TTEK) announced today that the U.S. Agency for
International Development (USAID) awarded the Company a $22 million,
single-award contract to support biodiversity protection and enhance
livelihoods in Madagascar.

The five-year USAID Mikajy activity—which means “taking good care of” in
Malagasy, the national language of Madagascar—is part of USAID
Madagascar’s Conservation and Communities Project. Through the USAID
Mikajy activity, Tetra Tech will support critical biodiversity
conservation efforts in forested and coastal ecosystems and empower
local communities in these regions to locally manage their natural
resources, while also providing new economic opportunities and support
for natural resource tenure and property rights.

USAID Mikajy will use innovative tools and science-based analyses to
strengthen government territorial planning efforts at the local level
and improve water and resource infrastructure and governance. USAID
Mikajy also will develop public-private partnerships by linking rural
producers with investors and establish resource advocacy networks to
strengthen land use and access rights. Components of the activity also
will address climate change resilience and engagement of women and youth.

“Tetra Tech is pleased to support USAID’s work in Madagascar to conserve
the island’s world-renowned biodiversity, while improving the lives of
its citizens,” said Dan Batrack, Tetra Tech’s Chairman and CEO.

About Tetra Tech

Tetra Tech is a leading, global provider of consulting and engineering
services. We are differentiated by Leading with Science®
to provide innovative technical solutions to our clients. We support
global commercial and government clients focused on water, environment,
infrastructure, resource management, energy, and international
development. With 17,000 associates worldwide, Tetra Tech provides clear
solutions to complex problems. For more information about Tetra Tech,
please visit tetratech.com,
follow us on Twitter (@TetraTech),
or like us on Facebook.

Any statements made in this release that are not based on historical
fact are forward-looking statements. Any forward-looking statements made
in this release represent management’s best judgment as to what may
occur in the future. However, Tetra Tech’s actual outcome and results
are not guaranteed and are subject to certain risks, uncertainties and
assumptions (“Future Factors”), and may differ materially from what is
expressed. For a description of Future Factors that could cause actual
results to differ materially from such forward-looking statements, see
the discussion under the section “Risk Factors” included in the
Company’s Form 10-K and Form 10-Q filings with the Securities and
Exchange Commission.

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