Press Release

HOUSTON Ð September 11, 2018 Ð KBR, Inc. (NYSE: KBR) announced today that it has been awarded a license, engineering and proprietary equipment contract for KBR Weatherly's Nitric Acid technology by Kemerovo Azot JSC.

Under the terms of the contract, KBR will provide technology licensing and basic engineering design (LBED) as well as proprietary equipment for Kemerovo Azot's plant in Kemerovo, Russia. This is a 500 tons per day nitric acid plant and is targeted to be in operation by 2021. Nitric acid will be used for the production of ammonium nitrate, one of the major nitrogen fertilizers.

"This will be the first project in Russia to be built using technology from KBR Weatherly which has more than six decades of global experience with this technology," said John Derbyshire, KBR President, Technology. "We are extremely proud to be part of this Kemerovo Azot project."

Weatherly Inc., a wholly owned subsidiary of KBR, has a distinguished history of serving the fertilizer industry with over 250 installations worldwide including over 75 nitric acid plants. Technologies from Weatherly Inc. are proven, modern, cost-effective and energy efficient.About KBR, Inc.

KBR is a global provider of differentiated professional services and technologies across the asset and program lifecycle within the Government Services and Hydrocarbons sectors. KBR employs approximately 34,000 people worldwide (including our joint ventures), with customers in more than 75 countries, and operations in 40 countries, across three synergistic global businessesGovernment Services, serving government customers globally, including capabilities that cover the full lifecycle of defense, space, aviation and other government programs and missions from research and development, through systems engineering, test and evaluation, program management, to operations, maintenance, and field logisticsTechnology, including proprietary technology focused on the monetization of hydrocarbons (especially natural gas and natural gas liquids) in ethylene and petrochemicals; ammonia, nitric acid and fertilizers; oil refining and gasificationHydrocarbons Services, including onshore oil and gas; LNG (liquefaction and regasification)/GTL; oil refining; petrochemicals; chemicals; fertilizers; differentiated EPC; maintenance services (Brown & Root Industrial Services); offshore oil and gas (shallow-water, deep-water, subsea); floating solutions (FPU, FPSO, FLNG & FSRU); program management and consulting services

KBR is proud to work with its customers across the globe to provide technology, value-added services, integrated EPC delivery and long term operations and maintenance services to ensure consistent delivery with predictable results. At KBR, We Deliver.

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Forward Looking Statement

The statements in this press release that are not historical statements, including statements regarding future financial performance, are forward-looking statements within the meaning of the federal securities laws. These statements are subject to numerous risks and uncertainties, many of which are beyond the company's control that could cause actual results to differ materially from the results expressed or implied by the statements. These risks and uncertainties include, but are not limited to: the outcome of and the publicity surrounding audits and investigations by domestic and foreign government agencies and legislative bodies; potential adverse proceedings by such agencies and potential adverse results and consequences from such proceedings; the scope and enforceability of the company's indemnities from its former parent; changes in capital spending by the company's customers; the company's ability to obtain contracts from existing and new customers and perform under those contracts; structural changes in the industries in which the company operates; escalating costs associated with and the performance of fixed-fee projects and the company's ability to control its cost under its contracts; claims negotiations and contract disputes with the company's customers; changes in the demand for or price of oil and/or natural gas; protection of intellectual property rights; compliance with environmental laws; changes in government regulations and regulatory requirements; compliance with laws related to income taxes; unsettled political conditions, war and the effects of terrorism; foreign operations and foreign exchange rates and controls; the development and installation of financial systems; increased competition for employees; the ability to successfully complete and integrate acquisitions; and operations of joint ventures, including joint ventures that are not controlled by the company.

KBR's most recently filed Annual Report on Form 10-K, any subsequent Form 10-Qs and 8-Ks, and other U.S. Securities and Exchange Commission filings discuss some of the important risk factors that KBR has identified that may affect the business, results of operations and financial condition. Except as required by law, KBR undertakes no obligation to revise or update publicly any forward-looking statements for any reason.For further information, please contact:

Investors
Alison Vasquez
Vice President, Investor Relations
713-753-5082
[email protected]

Media
Brenna Hapes
External Global Communications
713-753-3800
[email protected]