Fuel Tech Regains Compliance with NASDAQ Listing Requirement

October 5, 2017

WARRENVILLE, Ill.–(BUSINESS WIRE)–Fuel Tech, Inc. (NASDAQ:FTEK) (or “the Company”), a world leader
in advanced engineering solutions for the optimization of combustion
systems and emissions control in utility and industrial applications,
today announced that the Company received a letter from the Listing
Qualifications Department of the NASDAQ Stock Market (“NASDAQ”)
notifying the Company that the minimum bid price deficiency of the
Company’s common stock that trades under the symbol “FTEK” has been
cured and that the Company is in compliance with NASDAQ Listing Rule
5450(a)(1), and that NASDAQ considers this matter closed.

About Fuel Tech

Fuel Tech is a leading technology company engaged in the worldwide
development, commercialization and application of state-of-the-art
proprietary technologies for air pollution control, process
optimization, and advanced engineering services. These technologies
enable customers to produce both energy and processed materials in a
cost-effective and environmentally sustainable manner.

The Company’s nitrogen oxide (NOx) reduction technologies
include advanced combustion modification techniques and post-combustion
NOx control approaches, including NOxOUT®,
HERT™, and Advanced SNCR systems, ASCR™ Advanced Selective Catalytic
Reduction systems, and I-NOx® Integrated NOx
Reduction Systems, which utilize various combinations of these systems,
along with the ULTRA® process for safe ammonia generation.
These technologies have established Fuel Tech as a leader in NOx
reduction, with installations on over 900 units worldwide.

Fuel Tech’s technologies for particulate control include Electrostatic
Precipitator (ESP) products and services including complete turnkey
capability for ESP retrofits, with experience on units up to 700 MW.
Flue gas conditioning (FGC) systems include treatment using sulfur
trioxide (SO3) and ammonia (NH3) based
conditioning to improve the performance of ESPs by modifying the
properties of fly ash particles. Fuel Tech’s particulate control
technologies have been installed on more than 125 units worldwide.

The Company’s FUEL CHEM® technology revolves around the
unique application of chemicals to improve the efficiency, reliability,
fuel flexibility, boiler heat rate, and environmental status of
combustion units by controlling slagging, fouling, corrosion, opacity
and improving boiler operations. The Company has experience with this
technology, in the form of a customizable FUEL CHEM program, on over 110
units.

Fuel Tech also provides a range of services, including boiler tuning and
selective catalytic reduction (SCR) optimization services. In addition,
flow corrective devices and physical and computational modeling services
are available to optimize flue gas distribution and mixing in both power
plant and industrial applications.

Many of Fuel Tech’s products and services rely heavily on the Company’s
exceptional Computational Fluid Dynamics modeling capabilities, which
are enhanced by internally developed, high-end visualization software.
These capabilities, coupled with the Company’s innovative technologies
and multi-disciplined team approach, enable Fuel Tech to provide
practical solutions to some of our customers’ most challenging problems.
For more information, visit Fuel Tech’s web site at www.ftek.com.

NOTE REGARDING FORWARD-LOOKING STATEMENTS

This press release contains “forward-looking statements” as defined in
Section 21E of the Securities Exchange Act of 1934, as amended, which
are made pursuant to the safe harbor provisions of the Private
Securities Litigation Reform Act of 1995 and reflect Fuel Tech’s current
expectations regarding future growth, results of operations, cash flows,
performance and business prospects, and opportunities, as well as
assumptions made by, and information currently available to, our
management. Fuel Tech has tried to identify forward-looking statements
by using words such as “anticipate,” “believe,” “plan,” “expect,”
“estimate,” “intend,” “will,” and similar expressions, but these words
are not the exclusive means of identifying forward-looking statements.
These statements are based on information currently available to Fuel
Tech and are subject to various risks, uncertainties, and other factors,
including, but not limited to, those discussed in Fuel Tech’s Annual
Report on Form 10-K in Item 1A under the caption “Risk Factors,” and
subsequent filings under the Securities Exchange Act of 1934, as
amended, which could cause Fuel Tech’s actual growth, results of
operations, financial condition, cash flows, performance and business
prospects and opportunities to differ materially from those expressed
in, or implied by, these statements. Fuel Tech undertakes no obligation
to update such factors or to publicly announce the results of any of the
forward-looking statements contained herein to reflect future events,
developments, or changed circumstances or for any other reason.
Investors are cautioned that all forward-looking statements involve
risks and uncertainties, including those detailed in Fuel Tech’s filings
with the Securities and Exchange Commission.