ILOG Expands in China

Company Moves to New Building, Underscores Commitment To Chinese Software Market

SHANGHAI, April 16, 2008 - ILOG® (NASDAQ: ILOG; Euronext: ILO, ISIN: FR0004042364) today announced its growing operations in China have resulted in a move to its first purpose-built building in China at No. 81, Bo Xia Road, Zhangjiang Hi-Tech District in the new Pudong Software Park in Shanghai -- making it the first French company to be located in the Park. The occasion will be marked today by an opening ceremony, officiated by the Consul General of France, French business leaders and ILOG executives as well as Pudong government and Fudan University officials.

The four-story, 2,300-square meter building will consolidate management, technical support, sales and marketing teams supporting ILOG’s growing Chinese customer base from three locations in Shanghai to one location. The larger building will also house the ILOG Development Center for delivering services and custom solutions for both the domestic and international markets. The Center currently employs 60 software development professionals with plans to expand. The building also houses training rooms which can be used for customer training and events.

“This new building demonstrates both our long-term commitment to China and our confidence in the future prospects of Shanghai. It also demonstrates our commitment to helping create a software ecosystem for the development of a world-class Chinese software market and innovation economy,” said Pierre Haren, Chairman and CEO of ILOG. “This is our ninth year in China and we are excited to be expanding our China operations to support the growing demand for ILOG services and solutions.”

ILOG currently has more than 130 local clients and more than 20 business partners in China. ILOG’s customers include industry leaders like the China Construction Bank, CPIC, Baoshan Iron & Steel Corporation, Huawei and Shanghai Stock Exchange, and leading system integrator partners like Digital China, AsiaInfo and Neusoft.

“ILOG’s expansion in China is timely. There is a rising need for services and software to help Chinese companies better manage business change and complexity in this fast-moving economy,” said Bounthara Ing, deputy CEO and executive vice president in charge of Asia Pacific operations. “We will continue to invest in a network of reliable local partners and strong academic alliances to train local talent in ILOG optimization tools, business rule management systems and visualization software.”

“As a leading provider of software for sophisticated application development, ILOG solutions are very pertinent to the developing Chinese software market,” said Professor Xu Yufan, Chairman and Professor from the Department of Management Science at Fudan University. “We have incorporated ILOG optimization solutions into our curriculum and research programs because of the company shares our commitment to technical excellence. We are pleased to see ILOG committing significant resources in China and providing greater opportunities for local talents to deliver solutions to global customers.” Fudan University is a top Chinese university and an ILOG academic partner.

For more information on ILOG in China, please visit www.ilog.cn.

About ILOG
ILOG delivers software and services that empower customers to make better decisions faster and manage change and complexity. Over 3,000 corporations and more than 465 leading software vendors rely on ILOG’s market-leading business rule management system (BRMS), supply chain planning and scheduling applications and optimization and visualization software components, to achieve dramatic returns on investment, create market-defining products and services, and sharpen their competitive edge. ILOG was founded in 1987 and employs more than 860 people worldwide. For more information, please visit www.ilog.com.

ILOG is a trademark of ILOG S.A. and ILOG Inc. All other trademarks are the properties of their respective owners.