                                POWER OF ATTORNEY

         Know all by these presents, that the undersigned hereby constitutes and
appoints  Samuel T. Rees, Vice  President,  General  Counsel and Secretary,  and
Sandra L. Rawnsley,  Senior  Paralegal,  of Amcast  Industrial  Corporation (the
"Company")  and each of them  individually,  the  undersigned's  true and lawful
attorney-in-fact to:

(1)  execute for an on behalf of the undersigned,  in the undersigned's capacity
     as a  Director  of  Amcast  Industrial  Corporation,  Forms  3,  4 and 5 in
     accordance  with Section 16(a) of the  Securities  Exchange Act of 1934 and
     the rules thereunder;

(2)  do and perform any and all acts for and on behalf of the undersigned  which
     may be  necessary  or desirable to complete and execute any such Forms 3, 4
     and 5 and  timely  file such form with the  United  States  Securities  and
     Exchange Commission and any stock exchange or similar authority; and

(3)  take  any  other  action  of any type  whatsoever  in  connection  with the
     foregoing which, in the opinion of such attorney-in-fact, may be of benefit
     to, in the best interest of, or legally  required by, the  undersigned;  it
     being understood that the documents  executed by such  attorney-in-fact  on
     behalf of the  undersigned  pursuant to this Power of Attorney  shall be in
     such  form  and  shall   contain   such  terms  and   conditions   as  such
     attorney-in-fact may approve in such attorney-in-fact's discretion.

         The undersigned hereby grants to such  attorney-in-fact  full power and
authority  to do and perform  any of the rights and powers  herein  granted,  as
fully  to all  intents  and  purposes  as the  undersigned  might or could do if
personally  present,  with full  power of  substitution  or  revocation,  hereby
ratifying   and   confirming   all   that   such   attorney-in-fact,   or   such
attorney-in-fact's  substitute,  shall lawfully do or cause to be done by virtue
of this power of attorney and rights and powers herein granted.  The undersigned
acknowledges that the foregoing  attorneys-in-fact,  in serving in such capacity
at  the  request  of the  undersigned,  are  not  assuming,  nor is the  Company
assuming, any of the undersigned's responsibilities to comply with Section 16 of
the Securities and Exchange Act of 1934.

         This Power of Attorney  shall remain in full force and effect until the
undersigned  is no longer  required to file Forms 3, 4 and 5 with respect to the
undersigned's  holdings of and transactions in securities issued by the Company,
unless earlier revoked by the  undersigned in a signed writing  delivered to the
foregoing attorneys-in-fact.

IN WITNESS  WHEREOF,  the  undersigned  has caused  this Power of Attorney to be
executed this 16th day of October, 2002.


                                                     /s/ Bernard G. Rethore
                                                     ------------------------
                                                     Bernard G. Rethore


