Press Release

Wire Release

HOUSTON

(June 26, 2018)

KBR, Inc. (NYSE: KBR) announced today it has been awarded a contract to expand capacity for the manufacture of Tyvek¨ nonwoven materials by DuPont Safety & Construction at its facility in Contern, Luxembourg.

Under the terms of the reimbursable contract, KBR will provide project management, engineering, procurement and construction management services for a third operating line at the site and is scheduled to start in 2021. When fully operational, the new production line will add 120 employees to the current staff.

"Global demand for DuPont Tyvek¨ continues to grow worldwide in all of our key end-use markets," said Rose Lee, president DuPont Safety & Construction. "This capacity expansion plan is a critical step in growing the Tyvek¨ business, maintaining our leadership in nonwoven materials, and delivering the innovation customers expect from DuPont."

Christian Marx, vice-president and general manager of Tyvek¨ and Typar¨, said: "Tyvek¨ is the product of choice in many industries like worker protection, sterile packaging, construction materials, active packaging and graphics applications. With this new production line, we stay ahead of the growing worldwide demand."

"We are proud of the support role that KBR has played in the development of this project and that we are able to continue our relationship with DowDuPont as they build for the future," said Jay Ibrahim, KBR President, Europe, Middle East and Africa and Asia-Pacific.

Estimated revenue associated with this contract will be booked into backlog of unfilled orders for KBR's Hydrocarbons Services Business Segment in the second half of 2018.

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 businesses:Government 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.

Visit www.kbr.com

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 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
Nelson Rowe
Senior Vice President, Investor Relations
713-753-5082
Investors@kbr.com

Media
Brenna Hapes
External Global Communications
713-753-3800
Mediarelations@kbr.com