Press Release

Wire Release

HOUSTON – April 23, 2019 – KBR, Inc. (NYSE: KBR) announced today that it has successfully developed Ammonia 6000® based on its highly successful Purifier™ based ammonia technology.

The Ammonia 6000® technology uses KBR's proprietary Purifier™ based process which is currently in use in 39 plants worldwide and boasts industry leading on-stream records and leading edge process safety and energy efficiency.

KBR's Ammonia 6000® process helps plant owners stay ahead of the competition by expanding single-train capacity up to 6000 MTPD to exploit economies of scale, increase margins and reduce cost per ton of ammonia produced.

The Ammonia 6000® technology provides both the lowest CAPEX and the lowest OPEX per metric tonne of ammonia produced in comparison to competitive offerings. The Ammonia 6000® design avoids expensive Air Separation and Nitrogen Wash Units and utilizes an intelligent equipment layout with optimized and reduced equipment count and sizes – all of which help to leverage economies of scale and contribute to reduced CAPEX.

"I am pleased to announce the launch of KBR's Ammonia 6000® technology that expands the single train production capacity beyond the threshold of just 2700 MTPD," said John Derbyshire, KBR President, Technology. "Ammonia 6000® provides fertilizer and chemical producers tremendous performance advantages both in terms of capital investment and operating costs."

A world leader in developing designs for single-stream, large-scale ammonia plants, the technology for the world's first 600 to 2700 MTPD single-stream plants were developed by KBR. Since the 1960s, KBR has licensed, engineered or constructed more than 235 Ammonia plants worldwide.

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 36,000 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 logistics
• Technology, 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 gasification
• Hydrocarbons 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 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
Investors@kbr.com

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