EXHIBIT 99 Analyst contact: Media contact: Cherie Rice William J. Plunkett (630) 218-1850 (630) 572-8898 WASTE MANAGEMENT, INC. PRICES SHARE OFFERING Oak Brook, Illinois, June 15,1998 -- Waste Management, Inc. today announced that the price to the public for its previously announced offering of 20 million shares of common stock will be $31.3125 per share. The offering is expected to be completed on June 19, 1998. Net proceeds to the Company of approximately $607 million will be used for repayment of borrowings under the Company's bank credit facility and for repayment of commercial paper. Merrill Lynch Pierce Fenner & Smith Incorporated and Donaldson, Lufkin & Jenrette Securities Corporation are acting as managers and underwriters of the offering. ###