EXHIBIT 10.28 VENTRO CORPORATION 1500 Plymouth Street, Mt. View, CA 94043 November 19, 2001 DDP Ventures P.O. Box 10845 Oakland, CA 94610-0845 Attn: David Perry Dear David: Ventro Corporation (the "Company") is pleased to offer DDP Ventures a Net...Net Proceeds Income Agreement • February 25th, 2002 • Nexprise Inc • Wholesale-chemicals & allied products • California
