SAGUENAY, QC, Oct. 19, 2017 - CGI (TSX: GIB.A) (NYSE: GIB) is pleased to announce the renewal and expansion of its 30+ year partnership with Rio Tinto Aluminium. The companies have renewed their technology and application management outsourcing contracts, while also expanding their strategic partnership to include the delivery of digital services for Rio Tinto's Aluminium Operational Center. The estimated value of the contract renewals and expansion is approximately $30 million.

CGI will work to optimize and improve the agility of Rio Tinto Aluminium's operations, enabling the company to better respond to clients' evolving expectations and deliver personalized products. CGI will work with the aluminium group to drive strategic projects designed to deliver the benefits of Industry 4.0.

Based on the findings of in-depth interviews with 1,300 business and technology leaders as part of the 2017 CGI Client Global Insights, 92% of manufacturing executives cite digitalization of business processes as their number one technology priority to drive performance and enhance the customer experience. The challenge in today's digital world is to find a partner with the skills, knowledge and capabilities to drive innovation and transformation in critical business areas.

"We are pleased to expand this long-term partnership and contribute to the technological development of Rio Tinto Aluminium," said Michael Godin, Senior Vice-President at CGI. "We look forward to developing and implementing a strategy that integrates Industry 4.0 concepts to help the group achieve its business objectives. As a global leader in supply chain optimization, CGI will work closely with the aluminium division to adapt its operational processes through innovative digital technologies."

"CGI has a team of more than 600 professionals in Saguenay who work each day to support organizations like Rio Tinto Aluminum, through the delivery of innovative services", said Vice-President Guylaine Tremblay, who leads CGI's operation in Saguenay. "Our local and global network of experts delivers the capabilities and service excellence our clients require."

About CGI
Founded in 1976, CGI Group Inc. is the fifth largest independent information technology and business process services firm in the world. Approximately 70,000 professionals serve thousands of global clients from offices and delivery centers across the Americas, Europe and Asia Pacific, leveraging a comprehensive portfolio of services, including high-end business and IT consulting, systems integration, application development and maintenance, and infrastructure management, as well as 150 IP-based services and solutions. With annual revenue in excess of C$10 billion and an order backlog exceeding C$20 billion, CGI shares are listed on the TSX (GIB.A) and the NYSE (GIB). Website: www.cgi.com.

Forward-Looking Statements
All statements in this press release that do not directly and exclusively relate to historical facts constitute "forward-looking statements" within the meaning of that term in Section 27A of the United States Securities Act of 1933, as amended, and Section 21E of the United States Securities Exchange Act of 1934, as amended, and are "forward-looking information" within the meaning of Canadian securities laws. These statements and this information represent CGI's intentions, plans, expectations and beliefs, and are subject to risks, uncertainties and other factors, of which many are beyond the control of the Company. These factors could cause actual results to differ materially from such forward-looking statements or forward-looking information. These factors include but are not restricted to: the timing and size of new contracts; acquisitions and other corporate developments; the ability to attract and retain qualified members; market competition in the rapidly evolving IT industry; general economic and business conditions; foreign exchange and other risks identified in the press release, in CGI's annual and quarterly Management's Discussion and Analysis ("MD&A"), in CGI's Annual Report, in CGI's Annual Report on Form 40-F filed with the U.S. Securities and Exchange Commission (filed on EDGAR at www.sec.gov), and in the Company's Annual Information Form filed with the Canadian securities authorities (filed on SEDAR at www.sedar.com), as well as assumptions regarding the foregoing. The words "believe," "estimate," "expect," "intend," "anticipate," "foresee," "plan," and similar expressions and variations thereof, identify certain of such forward-looking statements or forward-looking information, which speak only as of the date on which they are made. In particular, statements relating to future performance are forward-looking statements and forward-looking information. CGI disclaims any intention or obligation to publicly update or revise any forward-looking statements or forward-looking information, whether as a result of new information, future events or otherwise, except as required by applicable law. Readers are cautioned not to place undue reliance on these forward-looking statements or on this forward-looking information.

For more information:

Investors,
Lorne Gorber,
Executive Vice-President,
Global Communications and Investor Relations,
lorne.gorber@cgi.com,
+1 514-841-3355

Media, Sébastien Barangé,
Vice-President,
Media Relations & Public Affairs,
sebastien.barange@cgi.com,
+1 514-841-3354