home cover at a glance chairman’s letter review directors/officers shareholder information	Corporate and Shareholder Information
	Executive Office 1100 Superior Avenue, 21st Floor Cleveland, OH 44114-2598 Telephone: 216-861-3300 Fax: 216-861-2399 www.oglebaynorton.com Great Lakes Minerals Michigan Limestone Operations, Inc. 1035 Calcite Rd. Rogers City, MI 49779 Phone: 517-734-2131 Fax: 517-734-2931 Facilities: Cedarville, MI Guilliver, MI Rogers City, MI Oglebay Norton Marine Services Company, L.L.C. 1301 E. 9th St., Suite 3737 Cleveland, OH 44114-1800 Phone: 216-861-8700 Fax: 216-861-2315 Facilities: Cleveland, OH Toledo, OH Global Stone Global Stone Corporation 10898 Crabapple Road, Suite 101 Roswell, GA 30075 Phone: 770-992-1268 Fax: 770-992-0488 Facilities: Buchanan, VA Chatsworth, GA Cisco, GA Elijay, GA Luttrell, TN Macon, GA Marble City, OK Middletown, VA Portage, IN Strasburg, VA Winchester,VA York, PA	Performance Minerals Oglebay Norton Industrial Sands, Inc. Three Gateway 410 N. 44th Street, Suite 320 Phoenix, AZ 85008 Phone: 602-389-4399 Fax: 602-389-4389 Facilities: Bakersfield, CA Brady, TX Colorado Springs, CO Columbus, TX El Paso, TX Fernley, NV Glassrock, OH Millwood, OH Riverside, CA San Juan Capistrano, CA Voca, TX Oglebay Norton Specialty Minerals, Inc. 1100 Superior Avenue, 21st Floor Cleveland, OH 44114-2598 Telephone: 216-861-8716 Fax: 216-861-2814 Facilities: Kings Mountain, NC Velarde, NM	Stockholder Inquiries: Copies of the SEC Form 10-K for 2000 are available on the company’s Web site and will be provided without charge to stockholders upon written request to: Rochelle F. Walk Vice President and Secretary Oglebay Norton Company 1100 Superior Avenue Cleveland, OH 44114-2598 216-861-8734 Information relating to share certificates or dividend payments should be directed to: Transfer Agent National City Bank Corporate Trust Operations Cleveland, OH 44135-1385 Telephone: 1-800-622-6757 Independent Auditors Ernst & Young LLP Cleveland, OH 2001 Annual Meeting of Stockholders April 25, 2001, 10:00 a.m. The Forum 1375 East 9th Street Cleveland, OH Common Stock and Dividends The company’s common stock is traded on the NASDAQ National Market. NASDAQ/NMS Symbol: OGLE. The following is a summary of the market range and dividends for each quarterly period in 2000 and 1999 for the company’s common stock. Quarterly Market Range Period High Low Dividends 2000 4th $28.13 $19.25 $.20 3rd 28.50 24.63 .20 2nd 26.13 20.25 .20 1st 24.50 19.00 .20 1999 4th $ 25.00 $17.63 $.20 3rd 23.75 19.56 .20 2nd 24.88 20.88 .20 1st 27.75 17.94 .20
	Certain statements contained in this document are “forward-looking” in that they reflect management’s expectations and beliefs regarding the future performance of the Company and its operating segments. Forward-looking statements are necessarily subject to risks, uncertainties and other factors, many of which are outside the control of the company, which could cause actual results to differ materially from such statements. Weather, particularly in the Great Lakes region, water levels, energy, fuel and oil prices, steel production, changes in the demand for the company’s products due to changes in technology, Great Lakes and Mid-Atlantic construction activity, the California economy and population growth rates in the southwestern United States, the outcome of negotiations of labor agreements, the loss or bankruptcy of major customers, and changes in environmental law all can impact revenues and earnings. Some of our customers have filed for reorganization under Chapter 11 of the U.S. Bankruptcy Code. We do not expect that these reorganizations will have a material impact on the company’s financial condition, although, depending on the outcome, there may be an impact on the company’s earnings in the near-term. Please refer to the company’s current and subsequent SEC filings under the Securities and Exchange Act of 1934, as amended, for further information.