1 EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement No. 333-49957-01 of Eagle-Picher Holdings, Inc. on Form S-4 of our report dated January 28, 2000, appearing in this Annual Report on Form 10-K of Eagle-Picher Holdings, Inc. and subsidiaries for the year ended November 30, 1999. /s/ Deloitte & Touche LLP Cincinnati, Ohio February 28, 2000