As filed with the Securities and Exchange Commission on December 9, 1994
Registration No. 33-45023
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
___________________________________
POST-EFFECTIVE AMENDMENT NO. 1
TO
FORM S-3
REGISTRATION STATEMENT UNDER
THE SECURITIES ACT OF 1933
____________________________________
MAGMA COPPER COMPANY
(Exact name of Registrant as specified in charter)
Delaware 86-0219794
(State or other jurisdiction (I.R.S. Employer
of incorporation or organization) Identification No.)
7400 North Oracle Road, Tucson, Arizona 85704
(Address of Principal Executive Office) (Zip Code)
____________________________________
Douglas J. Purdom
Vice President and Chief Financial Officer
Magma Copper Company
7400 North Oracle Road, Tucson, Arizona 85704
(Name and address of agent for service)
(602) 575-5600
(Telephone number, including area code, of agent for service)
With copy to:
Steven D. Pidgeon, Esq.
Snell & Wilmer
One Arizona Center
Phoenix, Arizona 85004
(602) 382-6252
Approximate Date of Commencement of Proposed Sale: As soon as practicable
after the Registration Statement becomes effective.
<PAGE>
Pursuant to a Registration Statement on Form S-3, Registration No. 33-
45023, effective January 17, 1992, Magma Copper Company (the "Company")
registered for sale from time to time debt securities consisting of
debentures, notes and/or other unsecured evidences of indebtedness in one or
more series at an aggregate initial offering price not to exceed U.S.
$150,000,000 (the "Shelf Registration"). This Post-Effective Amendment
serves to deregister the $75,000,000 in debt securities that have not been,
and will not be, issued by the Company pursuant to the Shelf Registration.
<PAGE>
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the
Registrant has duly caused this Post-Effective Amendment No. 1 to this
Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Tucson, and the State of Arizona,
on December 9, 1994.
MAGMA COPPER COMPANY,
a Delaware corporation
By: /s/ Douglas J. Purdom
-------------------------------------
Douglas J. Purdom
Vice President and Chief Financial
Officer (Principal Accounting and
Financial Officer)
<PAGE>
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, Magma Copper
Company certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Post-
Effective Amendment No. 1 to the Registration Statement on Form S-3 to be
signed on its behalf by the undersigned, thereunto duly authorized, in the
City of Tucson and State of Arizona on December 9, 1994.
MAGMA COPPER COMPANY,
a Delaware corporation
By:/s/ Douglas J. Purdom
-----------------------------------
Douglas J. Purdom
Vice President and
Chief Financial Officer
Pursuant to the requirements of the Securities Act of 1933, this Post-
Effective Amendment No. 1 to the Registration Statement has been signed below
by the following persons in the capacities and on the date indicated.
Signature Title Date
--------- ----- ----
* Chairman of the Board and Director December 9, 1994
_____________________
Donald J. Donahue
* President, Chief Executive Officer December 9, 1994
_____________________
J. Burgess Winter Director (Principal Executive
Officer
/s/Douglas J. Purdom Vice President and Chief Financial December 9, 1994
_____________________
Douglas J. Purdom Officer (Principal Financial and
Accounting Officer)
* Director December 9, 1994
_____________________
Christopher W. Brody
* Director December 9, 1994
_____________________
Judd R. Cool
* Director December 9, 1994
_____________________
John W. Goth
* Director December 9, 1994
_____________________
John R. Kennedy
* Director December 9, 1994
_____________________
Thomas W. Rollins
<PAGE>
Signature Title Date
_________ _____
* Director December 9, 1994
- - - ---------------------
Henry B. Sargent
* Director December 9, 1994
_____________________
Simon D. Strauss
* Director December 9, 1994
_____________________
H. Wilson Sundt
* Director December 9, 1994
_____________________
John L. Vogelstein
*By /s/Douglas J. Purdom
_______________________
Douglas J. Purdom
Attorney-in-Fact
