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Exhibit 31.1 EAGLEPICHER HOLDINGS, INC. AND ITS SUBSIDIARIES
CERTIFICATION PURSUANT TO RULE 13a-14(a)/15d-14(a)
OF THE SECURITIES EXCHANGE ACT OF 1934, As Amended I, John H. Weber, President and Chief Executive Officer, certify that: 1. I have reviewed this quarterly report on Form 10-Q of EaglePicher Holdings,
Inc. , EaglePicher Incorporated, Daisy Parts, Inc., Carpenter Enterprises,
Inc., Eagle-Picher Far East, Inc., EaglePicher Filtration & Minerals, Inc.,
EaglePicher Technologies, LLC, EaglePicher Automotive, Inc. and EaglePicher
Pharmaceutical Services, LLC; 2. Based on my knowledge, this quarterly report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this quarterly
report; 3. Based on my knowledge, the financial statements, and other financial
information included in this quarterly report, fairly present in all material
respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this quarterly report; 4. The registrants other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and we have: a) Designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our supervision,
to ensure that material information relating to the registrant, including
its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this quarterly report
is being prepared. b) Evaluated the effectiveness of the registrants disclosure controls
and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of
the period covered by this report based on such evaluation; and c) Disclosed in this report any change in the registrants internal
control over financial reporting that occurred during the registrants
most recent fiscal quarter (the registrants fourth fiscal quarter in the
case of an annual report) that has materially affected, or is reasonably
likely to materially affect, the registrants internal control over
financial reporting. 5. The registrants other certifying officer and I have disclosed, based on our
most recent evaluation of internal control over financial reporting, to the
registrants auditors and the audit committee of registrants board of
directors (or persons performing the equivalent function): a) all significant deficiencies and material weaknesses in the design or
operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrants ability to record,
process, summarize and report financial information; and b) any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrants internal
control over financial reporting. /s/ John H. Weber
    
    Date: July 12, 2004John H. Weber, President and Chief Executive Officer