EXHIBIT 10.18 SUPPLEMENTAL RETIREMENT BENEFIT AGREEMENT Agreement made as of this 15th day of November, 1991 by and between Mosinee Paper Corporation, a Wisconsin corporation (the "Corporation") and Richard L. Radt, of Wausau, Wisconsin ("Mr. Radt")....Supplemental Retirement Benefit Agreement • February 17th, 1998 • Wausau Mosinee Paper Mills Corp • Paper mills • Wisconsin
