Mack-Cali Announces Five-Year 89,448 Square-Foot Lease Renewal with Lonza Group, Ltd. at Fairlawn, New Jersey Property

12/14/1999 Category: Leasing and Development

CRANFORD, NEW JERSEY - December 14, 1999 - Mack-Cali Realty Corporation (NYSE: CLI) today announced it has signed a five-year lease renewal with Lonza Group, Ltd. at Mack-Cali Corporate Center in Fairlawn, New Jersey.

Lonza Group occupies as its company headquarters 89,448 square feet of the building, located at 17-17 Route 208. The 143,000 square- foot, class A building is currently 94% leased.

A tenant of the building since 1987, Lonza Group is a leading specialty chemical producer.

"Lonza decided to renew its U.S. headquarters lease in this Mack-Cali building because the location, quality and management of the facility have served our company well for over a decade," commented Peter J. Sage, vice-president of Lonza Group.

Mack-Cali Realty Corporation is a fully-integrated, self-administered, self-managed real estate investment trust (REIT) providing management, leasing, development, construction and other tenant-related services for its class A real estate portfolio. Mack-Cali owns or has interests in 255 properties, primarily office and office/flex buildings, totaling approximately 28.3 million square feet, located in 12 states and the District of Columbia. The properties, which are primarily located in the Northeast, enable the Company to provide a full complement of real estate opportunities to its diverse base of over 2,400 tenants.

Additional information on Mack-Cali Realty Corporation is available on the Company's website at www.mack-cali.com.

Certain information discussed in this press release may constitute forward-looking statements within the meaning of the Federal Securities law. Although the Company believes that the expectations reflected in such forward-looking statements are based upon reasonable assumptions, it can give no assurance that its expectations will be achieved. Forward-looking information is subject to certain risks, trends and uncertainties that could cause actual results to differ materially from those projected. Among those risks, trends and uncertainties are the general economic climate; the supply of and demand for office, office/flex and industrial/warehouse properties; interest rate levels; the availability of financing; and other risks associated with the development and acquisition of properties, including risks that the development may not be completed on schedule, that the tenants will not take occupancy or pay rent, or that development or operating costs may be greater than anticipated. For further information on factors which could impact the Company and the statements contained herein, reference should be made to the Company's filings with the Securities and Exchange Commission including quarterly reports on Form 10-Q, current reports on Form 8-K, and annual reports on Form 10-K.