HORSEHEAD RESOURCE DEVELOPMENT CO INC
SC 13E3, 1996-05-16
HAZARDOUS WASTE MANAGEMENT
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================================================================================
                                                        
                        ================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                              ____________________

                                 SCHEDULE 13E-3
                        RULE 13E-3 TRANSACTION STATEMENT
       (Pursuant to Section 13(e) of the Securities Exchange Act of 1934)

                  HORSEHEAD RESOURCE DEVELOPMENT COMPANY, INC.
                  (Name of Issuer and Person Filing Statement)

                     Common Stock, Par Value $.01 Per Share
                         (Title of Class of Securities)

                                   440699-10-6
                      (CUSIP Number of Class of Securities)

                           William M. Quirk, President
                  Horsehead Resource Development Company, Inc.
                              110 East 59th Street
                            New York, New York 10022
                                 (212) 527-3003
      (Name, Address and Telephone Number of Person Authorized to Receive 
      Notices and Communications on Behalf of the Person Filing Statement)

                                    Copy to:
                               Morris Orens, Esq.
                    Shereff, Friedman, Hoffman & Goodman, LLP
                                919 Third Avenue
                            New York, New York 10022
                                 (212) 758-9500

This statement is filed in connection with (check the appropriate box):

a.   [ ]  The filing of solicitation materials or an information statement
          subject to Regulation 14A, Regulation 14C, or rule 13e-3(c) under the
          Securities Exchange Act of 1934.
b.   [ ]  The filing of a registration statement under the Securities Act of
          1933.
c.   [x]  A tender offer.
d.   [ ]  None of the above.

Check the following box if the soliciting materials or information statement
referred to in checking box (a) are preliminary copies:  [ ].

                            CALCULATION OF FILING FEE
                                                                               
===============================================================================

          Transaction  Valuation*                      Amount of Filing Fee
          ----------------------                       --------------------
               $10,071,700                                    $2,014.34

                                                                               
===============================================================================
*Based upon purchase of 1,751,600 shares at $5.75 per share.

[x]  Check box if any part of  the fee is offset as provided by  Rule 0-11(a)(2)
     and identify the filing with which  the offsetting fee was previously paid.
     Identify the previous filing by  registration statement number, or the form
     or schedule and the date of its filing.

Amount previously paid:  $2,014.34

Form or registration no.:   SC13E4

Filing party: Horsehead Resource Development Company, Inc.

Date filed:  May 16, 1996

================================================================================


<PAGE>

                                 SCHEDULE 13E-3


                                  INTRODUCTION

     This  Rule 13e-3  Transaction Statement  (this "Statement") relates  to the
offer by  Horsehead Resource Development  Company, Inc., a  Delaware corporation
(the "Company"), to  purchase up to  1,751,600 shares of  its common stock,  par
value $.01 per share  (the "Shares"), for $5.75 per Share, net  to the seller in
cash, upon the  terms and subject  to the conditions set  forth in the  Offer to
Purchase, dated  May 16,  1996 (the  "Offer to  Purchase"), and  in the  related
Letter  of  Transmittal, dated  May  16,  1996  (which together  constitute  the
"Offer"), copies of  which are attached  hereto as Exhibits  (d)(1) and  (d)(2),
respectively.  

     The  cross reference  sheet below  is  being supplied  pursuant to  General
Instruction F to  Schedule 13E-3  and shows  the location in  the Issuer  Tender
Offer Statement  on Schedule 13E-4  (the "Schedule 13E-4") filed  by the Company
with  the  Securities  and  Exchange  Commission  on  the  date  hereof  of  the
information required to be included in response  to the items of this Statement.
The information  set forth in  the Schedule 13E-4,  which is attached  hereto as
Exhibit  (g),  including  all  exhibits thereto,  is  expressly  incorporated by
reference and responses to  each item herein are qualified in  their entirety by
the provisions of the Schedule 13E-4.

                              CROSS REFERENCE SHEET

        ITEM IN                                                WHERE LOCATED
        SCHEDULE 13E-3                                         IN SCHEDULE 13E-4

        Item 1(a)        . . . . . . . . . . . . . . . . . . .   Item 1(a)
        Item 1(b)        . . . . . . . . . . . . . . . . . . .   Item 1(b)
        Item 1(c)        . . . . . . . . . . . . . . . . . . .   Item 1(c)

        Item 1(d)        . . . . . . . . . . . . . . . . . . .   *
        Item 1(e)        . . . . . . . . . . . . . . . . . . .   *
        Item 1(f)        . . . . . . . . . . . . . . . . . . .   Item 4
        Item 2(a)        . . . . . . . . . . . . . . . . . . .   *
        Item 2(b)        . . . . . . . . . . . . . . . . . . .   *

        Item 2(c)        . . . . . . . . . . . . . . . . . . .   *
        Item 2(d)        . . . . . . . . . . . . . . . . . . .   *
        Item 2(e)        . . . . . . . . . . . . . . . . . . .   *
        Item 2(f)        . . . . . . . . . . . . . . . . . . .   *
        Item 2(g)        . . . . . . . . . . . . . . . . . . .   *

        Item 3(a)        . . . . . . . . . . . . . . . . . . .   *
        Item 3(b)        . . . . . . . . . . . . . . . . . . .   *
        Item 4(a)        . . . . . . . . . . . . . . . . . . .   *
        Item 4(b)        . . . . . . . . . . . . . . . . . . .   *
        Item 5(a) - (g)  . . . . . . . . . . . . . . . . . . .   Item 3(a) - (j)
        Item 6(a)        . . . . . . . . . . . . . . . . . . .   Item 2(a)
        Item 6(b)        . . . . . . . . . . . . . . . . . . .   *
        Item 6(c)        . . . . . . . . . . . . . . . . . . .   *
        Item 6(d)        . . . . . . . . . . . . . . . . . . .   *


                                        2







<PAGE>






        Item 7(a)        . . . . . . . . . . . . . . . . . . .   Item 3
        Item 7(b)        . . . . . . . . . . . . . . . . . . .   *
        Item 7(c)        . . . . . . . . . . . . . . . . . . .   *
        Item 7(d)        . . . . . . . . . . . . . . . . . . .   *
        Item 8(a)        . . . . . . . . . . . . . . . . . . .   *
        Item 8(b)        . . . . . . . . . . . . . . . . . . .   *
        Item 8(c)        . . . . . . . . . . . . . . . . . . .   *
        Item 8(d)        . . . . . . . . . . . . . . . . . . .   *
        Item 8(e)        . . . . . . . . . . . . . . . . . . .   *
        Item 8(f)        . . . . . . . . . . . . . . . . . . .   *
        Item 9(a) - (c)  . . . . . . . . . . . . . . . . . . .   *
        Item 10(a)       . . . . . . . . . . . . . . . . . . .   Item 1(b)
        Item 10(b)       . . . . . . . . . . . . . . . . . . .   Item 4
        Item 11          . . . . . . . . . . . . . . . . . . .   Item 5
        Item 12(a)       . . . . . . . . . . . . . . . . . . .   Item 1(b)
        Item 12(b)       . . . . . . . . . . . . . . . . . . .   *
        Item 13(a)       . . . . . . . . . . . . . . . . . . .   *
        Item 13(b)       . . . . . . . . . . . . . . . . . . .   *
        Item 13(c)       . . . . . . . . . . . . . . . . . . .   *
        Item 14          . . . . . . . . . . . . . . . . . . .   Item 7
        Item 15(a)       . . . . . . . . . . . . . . . . . . .   *
        Item 15(b)       . . . . . . . . . . . . . . . . . . .   Item 6
        Item 16          . . . . . . . . . . . . . . . . . . .   Item 8(e)
        Item 17(a)       . . . . . . . . . . . . . . . . . . .   *
        Item 17(b)       . . . . . . . . . . . . . . . . . . .   *
        Item 17(c)       . . . . . . . . . . . . . . . . . . .   Item 9(c)
        Item 17(d)       . . . . . . . . . . . . . . . . . . .   Item 9(a)
        Item 17(e)       . . . . . . . . . . . . . . . . . . .   *
        Item 17(f)       . . . . . . . . . . . . . . . . . . .   Item 9(f)
        Item 17(g)       . . . . . . . . . . . . . . . . . . .   *
                         

__________________________________

*    The Item is inapplicable or the answer thereto is in the negative.
















                                        3







<PAGE>






                                 SCHEDULE 13E-3

ITEM 1.   ISSUER AND CLASS OF SECURITY SUBJECT TO THE TRANSACTION.

          (a)  The name of the issuer is Horsehead Resource Development Company,
Inc., which  has its principal  executive offices at  110 East 59th  Street, New
York, New York 10022.

          (b)  This Statement  relates to the  offer by the Company  to purchase
the Shares at a  price of $5.75 per  Share, net to the seller in cash, upon  the
terms  and  subject  to the  conditions  set  forth in  the  Offer  to Purchase.
Reference is  hereby made  to the  "Introduction,"  "Special  Factors -  Certain
Effects of  the Offer,"   "The Offer -  1.  Number  of Shares; Extension  of the
Offer" and   "The Offer - 13.   Effects of the  Offer on the Market  for Shares;
Registration Under the Exchange Act" of the Offer to  Purchase, each of which is
herein incorporated by reference.  

          (c)  Reference is hereby  made to the "Introduction" and  "The Offer -
6.  Price Range of Shares; Dividends" of the Offer to Purchase, each of which is
herein incorporated by reference.

          (d)  Reference is  hereby made  to "The  Offer -  6.   Price Range  of
Shares;  Dividends" of  the Offer to  Purchase, which is  herein incorporated by
reference. 

          (e)  Not applicable.

          (f)  Reference is hereby  made to the "Special  Factors - Relationship
Between  Major  Stockholders"  and "The  Offer  -  6.   Price  Range  of Shares;
Dividends" of  the Offer to  Purchase, each of  which is herein  incorporated by
reference.


ITEM 2.   IDENTITY AND BACKGROUND.

     This  Statement is being filed by  the Company, which is  the issuer of the
class of equity securities which is the subject of the Rule 13e-3 transaction.

          (a)-(d) and (g).    Reference   is  hereby   made   to  "Schedule   I.
Directors and  Executive Officers of the Company"   and "Schedule II.  Directors
and Executive Officers of HII" of the Offer to Purchase, each of which is herein
incorporated by reference. 

          (e)-(f).  During   the  last  five  years,  neither  the  Company  nor
Horsehead Industries,  Inc. nor,  to their  knowledge, any of  the directors  or
executive  officers  thereof  has  been   convicted  in  a  criminal  proceeding
(excluding traffic violations or similar misdemeanors) or was a party to a civil
proceeding of a  judicial or administrative body of competent  jurisdiction as a
result of which any such person was or is subject to a judgment, decree or final
order enjoining  further violations  of, or  prohibiting activities subject  to,
federal or state securities laws or finding any violation of those laws.







                                        4







<PAGE>






ITEM 3.   PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS.

     (a)  Not applicable.

     (b)  Reference is  hereby  made  to the  "Special  Factors  -  Relationship
Between  Major Stockholders" and "The Offer - 11.  Transactions and Arrangements
Concerning the  Shares"  of the  Offer  to Purchase,  each  of which  is  herein
incorporated by reference.


ITEM 4.   TERMS OF THE TRANSACTION.

     (a)  Reference is  hereby made  to the "Introduction,"  "Special Factors  -
Certain Effects of the Offer,"  "The Offer - 1.  Number of  Shares; Extension of
the Offer," "The  Offer - 2.  Procedure  for Tendering Shares," "The  Offer - 3.
Withdrawal  Rights," "The  Offer -  4.   Acceptance  for Payment  of  Shares and
Payment of Purchase Price,"  "The Offer - 5.  Certain  Conditions of the Offer,"
"The  Offer -  12.   Certain Legal  Matters; Regulatory Approvals;  No Appraisal
Rights," "The Offer - 14.   Extension of Tender Period; Termination; Amendments"
and "The Offer - 16.  Miscellaneous" of the Offer to Purchase,  each of which is
herein incorporated by reference.

     (b)  None.


ITEM 5.   PLANS OR PROPOSALS OF THE ISSUER OR AFFILIATE.

     (a)-(g)   Reference  is hereby made to the "Introduction," "Special Factors
- - Certain Effects  of the Offer" and "The  Offer - 13.  Effects  of the Offer on
the  Market for  Shares; Registration under  the Exchange  Act" of the  Offer to
Purchase, each of which is herein incorporated by reference.


ITEM 6.   SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

     (a)  Reference is  hereby made to  "The Offer  - 9.   Source and Amount  of
Funds" of  the  Offer to  Purchase,  which  Section is  herein  incorporated  by
reference.

     (b)  Reference is hereby made  to "The Offer -  15.  Fees and Expenses"  of
the Offer to Purchase, which Section is herein incorporated by reference.

     (c)  Not applicable.

     (d)  Not applicable.


ITEM 7.   PURPOSE(S), ALTERNATIVES, REASONS AND EFFECTS.

     (a)  Reference is  hereby made to  the "Introduction," "Special   Factors -
Purpose of the Offer" and "The  Offer - 7.  Background and Purpose  of the Offer
and the Purchase" of the Offer to Purchase, each of which is herein incorporated
by reference.


















                                        5







<PAGE>







     (b)  Reference is hereby  made to "Special  Factors - Relationship  Between
Major Stockholders"  of the Offer to  Purchase, which is herein  incorporated by
reference.

     (c)  Reference is  hereby made  to the  "Introduction," "Special  Factors -
Purpose of the Offer"  and "The Offer - 7.  Background and  Purpose of the Offer
and the Purchase" of the Offer to Purchase, each of which is herein incorporated
by reference.

     (d)  Reference is hereby  made to  the "Introduction,"  "Special Factors  -
Certain Effects of the Offer," "The  Offer -  7.  Background and  Purpose of the
Offer and  the Purchase,"  "The Offer -  9.  Source  and Amount of  Funds," "The
Offer  -  10.   Certain Federal  Income  Tax Considerations,"  "The Offer  - 11.
Transactions  and Arrangements  Concerning  the  Shares" and  "The  Offer -  13.
Effects  of the Offer on the Market for Shares;  Registration under the Exchange
Act"  of  the  Offer  to Purchase,  each  of  which  is  herein incorporated  by
reference. 


ITEM 8.   FAIRNESS OF THE TRANSACTION.

     (a)  Reference is hereby made to the "Special Factors - Potential Conflicts
of Interest" and  "Special Factors -  Position of the Board of Directors" of the
Offer to Purchase, each of which is herein incorporated by reference.  

     (b)  Reference  is hereby  made to  the "Introduction," "Special  Factors -
Position of the  Board of Directors," "Special  Factors  - Opinion  of Financial
Advisor"  and  "Annex A.  Opinion of  Bear Stearns & Co., Inc."  of the Offer to
Purchase, each of which is herein incorporated by reference.  

     (c)  Reference is hereby  made to  "The Offer - 12.  Certain Legal Matters;
Regulatory Approvals; No Appraisal  Rights" of the  Offer to Purchase, which  is
herein incorporated by reference.

     (d)  Reference  is hereby  made to  the "Introduction," "Special  Factors -
Background of  the  Offer" and  "Special  Factors -  Position  of the  Board  of
Directors" of the  Offer to Purchase,  each of which  is herein incorporated  by
reference.  

     (e)  Reference is  hereby made  to the  "Introduction," "Special Factors  -
Background of  the Offer" and "Annex A.  Opinion of Bear Stearns & Co., Inc." of
the Offer to Purchase, each of which is herein incorporated by reference.  

     (f)  Not applicable.


ITEM 9.   REPORTS, OPINIONS, APPRAISALS AND CERTAIN NEGOTIATIONS.

     (a)-(c)   Reference  is hereby made to the "Introduction," "Special Factors
- -  Background  of  the Offer,"  "Special  Factors  - Position  of  the  Board of
Directors," "Special Factors -  Opinion of Financial Advisor," "The Offer  - 15.
Fees and  Expenses" and "Annex A.   Opinion of Bear Stearns &  Co., Inc." of the
Offer to Purchase, each of which is herein incorporated by reference.  

















                                        6







<PAGE>







ITEM 10.  INTEREST IN SECURITIES OF THE ISSUER.

     (a)  Reference is  hereby made to  the "Introduction,"  "Special  Factors -
Relationship Between Major Stockholders,"  and "The Offer - 7.    Background and
Purpose  of the Offer and the Purchase" of  the Offer to Purchase, each of which
is herein incorporated by reference.  

     (b)  Reference  is  hereby made  to  "The  Offer -  11.    Transactions and
Arrangements Concerning  the Shares" of  the Offer to Purchase,  which is herein
incorporated by reference.


ITEM 11.  CONTRACTS, ARRANGEMENTS OR UNDERSTANDINGS WITH RESPECT TO THE ISSUER'S
          SECURITIES.

     Reference  is  hereby  made  to  the  "Introduction,"  "Special  Factors  -
Relationship  Between Major  Stockholders,"  "The  Offer -  7.   Background  and
Purpose of the Offer and  the Purchase" and "The Offer  - 11.  Transactions  and
Arrangements Concerning the Shares"  of the Offer to Purchase, each  of which is
herein incorporated by reference.


ITEM 12.  PRESENT INTENTION AND RECOMMENDATION OF CERTAIN PERSONS WITH REGARD TO
          THE TRANSACTION.

     (a)  Reference  is hereby  made to  the "Introduction," "Special  Factors -
Potential Conflicts of Interest," "The Offer - 7.  Background and Purpose of the
Offer and  the Purchase"  and "The  Offer -  11.  Transactions and  Arrangements
Concerning  the Shares"  of the  Offer   to Purchase,  each of  which is  herein
incorporated by reference.

     (b)  Reference  is hereby  made to  "Special  Factors -  Background of  the
Offer" of the Offer to Purchase, which is herein incorporated by reference.

ITEM 13.  OTHER PROVISIONS OF THE TRANSACTION.

     (a)  Reference is hereby made  to "The Offer - 12.   Certain Legal Matters;
Regulatory  Approvals; No Appraisal Rights"  of the Offer  to Purchase, which is
herein incorporated by reference.

     (b)  None

     (c)  Not applicable

ITEM 14.  FINANCIAL INFORMATION.

     (a)-(b)   Reference is hereby made to "The Offer -  8.  Certain Information
Concerning  the  Company" of  the  Offer to  Purchase,  which Section  is herein
incorporated  by reference.  The audited financial statements of the Company set
forth in  the Company's Report on Form 10-K for the year ended December 31, 1995
are incorporated herein by reference.  The unaudited financial statements of the
Company set forth in  the Company's Report on Form 10-Q for the quarterly period
ended March 31, 1996 are incorporated herein by reference.

















                                        7







<PAGE>






ITEM 15.  PERSONS AND ASSETS EMPLOYED, RETAINED OR UTILIZED.

     (a)  Not applicable.

     (b)  Reference is hereby  made to the  "Introduction" and "The Offer  - 15.
Fees  and  Expenses"  of  the  Offer  to  Purchase,  each  of  which  is  herein
incorporated by reference.


ITEM 16.  ADDITIONAL INFORMATION.

     Reference is hereby made to the Offer to Purchase and the related Letter of
Transmittal, copies of which  are attached hereto as Exhibits (d)(1) and (d)(2),
respectively, and are herein incorporated by reference in their entirety.


ITEM 17.  MATERIAL TO BE FILED AS EXHIBITS.

     (a)       Not applicable.
     (b)       Opinion of Bear Stearns & Co., Inc. 
     (c)(1)    Shareholders  Agreement, dated  as  of July  26, 1988,  among the
               Company, HII and B.U.S. Environmental Services, Inc.
     (c)(2)    Amendment  to Shareholders Agreement,  dated July 24,  1990 among
               B.U.S. Environmental  Services, Inc.,  HII, Horsehead  Investment
               Management Corporation and the Company.
     (d)(1)    Offer to Purchase, dated May 16, 1996.
     (d)(2)    Letter of Transmittal, dated May 16, 1996.
     (d)(3)    Notice of Guaranteed Delivery, dated May 16, 1996.
     (d)(4)    Letter to Brokers, Dealers, Commercial Banks, Trust Companies and
               Other Nominees, dated May 16, 1996.
     (d)(5)    Letter  to Clients for use by Brokers, Dealers, Commercial Banks,
               Trust Companies and Other Nominees, dated May 16, 1996.
     (d)(6)    Guidelines for Certification of Taxpayer Identification Number on
               Substitute Form W-9.
     (d)(7)    Letter to the Company's Stockholders from the President and Chief
               Executive Officer of the Company.
     (d)(8)    Press Release, dated May 16, 1996.
     (e)       Not applicable.
     (f)       None, except  those materials referred  to in (d)(1),  (d)(2), 
               (d)(3), (d)(4), (d)(5) and (d)(6).
     (g)       Issuer Tender Offer Statement on Schedule 13E-4.



                                        8







<PAGE>






                                    SIGNATURE

     After due inquiry  and to the  best of my  knowledge and belief,  I certify
that the information set forth in this statement is true, complete and correct.

                              HORSEHEAD RESOURCE DEVELOPMENT 
                              COMPANY, INC.


                              By:  /s/ William M. Quirk                        
                                  ---------------------------------------------
                                   William M. Quirk
                                   President

Date: May 16, 1996































                                        9







<PAGE>








 Exhibit No.               Description                       Page No.
 -----------               -----------                       -------

 (b)        Opinion of Bear Stearns & Co., Inc. 

 (c)(1)     Shareholders Agreement, dated as of July
            26, 1988, among the Company, HII and
            B.U.S. Environmental Services, Inc.*

 (c)(2)     Amendment to Shareholders Agreement, dated
            July 24, 1990 among B.U.S. Environmental
            Services, Inc., HII, Horsehead Investment
            Management Corporation and the Company.**

 (d)(1)     Offer to Purchase, dated May 16, 1996.

 (d)(2)     Letter of Transmittal, dated May 16, 1996.

 (d)(3)     Notice of Guaranteed Delivery, dated May
            16, 1996.

 (d)(4)     Letter to Brokers, Dealers, Commercial
            Banks, Trust Companies and Other Nominees,
            dated May 16, 1996.

 (d)(5)     Letter to Clients for use by Brokers,
            Dealers, Commercial Banks, Trust Companies
            and Other Nominees, dated May 16, 1996.

 (d)(6)     Guidelines for Certification of Taxpayer
            Identification Number on Substitute Form
            W-9.

 (d)(7)     Letter to the Company's Stockholders from
            the President and Chief Executive Officer
            of the Company, dated May 16, 1996.

 (d)(8)     Press Release, dated May 16, 1996.

 (g)        Issuer Tender Offer Statement on Schedule
            13E-4.

___________
*         Filed as  an Exhibit to  Horsehead Resource Development  Company, Inc.
          Registration  Statement on Form S-1 (File  No. 33-34808) as filed with
          the Securities and Exchange Commission.

**        Filed as  an Exhibit to  Horsehead Resource Development  Company, Inc.
          Annual Report of  the Company on Form  10-K for the fiscal  year ended
          December   31,  1990  as  filed  with   the  Securities  and  Exchange
          Commission.








                                       10


                                   EXHIBIT (B)
                       OPINION OF BEAR STEARNS & CO., INC.


<PAGE>

[BEAR STEARNS LETTERHEAD]


                                                                  May 16, 1996



Board of Directors
Horsehead Resource Development Company, Inc.
110 East 59th Street
New York, NY 10022


Dear Sirs:

We understand that Horsehead Resource Development Company, Inc. ("HRD") intends
to purchase all of the 1,751,600 shares of outstanding HRD common stock
currently held by holders other than Horsehead Industries, Inc. and B.U.S.
Environmental Services, Inc. and their respective affiliates (the "Public
Shareholders") at a price of $5.75 per share through a cash tender offer (the
"Transaction"). You have provided us with a draft offer to purchase (the
"Offer").

You have asked us to render our opinion as to whether the Transaction is fair,
from a financial point of view, to the Public Shareholders of HRD.

In the course of our analyses for rendering this opinion, we have:

         1. reviewed the Offer;

         2. reviewed HRD's Annual Reports to Shareholders and Annual
            Reports on Form 10-K for the fiscal years ended December 31,
            1990 through 1995, and its Quarterly Reports on Form 10-Q for
            the 1993 through 1995 periods;

         3. reviewed  certain  operating  and  financial   information,   
            including  estimates  of  future financial results, provided to us
            by management relating to HRD's business and prospects;

         4. met with certain  members of HRD's senior  management  to discuss
            its  operations,  historical financial statements and future 
            prospects;

         5. reviewed the historical prices and trading volumes of the common
            shares of HRD;

                                                                           1
<PAGE>

         6. reviewed publicly available financial data and stock market
            performance data of companies which we deemed generally comparable
            HRD;

         7. reviewed the terms of recent acquisitions of companies which we
            deemed generally comparable to HRD; and

         8. conducted such other studies, analyses, inquiries and
            investigations as we deemed appropriate.


In the course of our review, we have relied upon and assumed the accuracy and
completeness of the financial and other information provided to us by HRD. With
respect to HRD's estimated future financial results, we have assumed that they
have been reasonably prepared on bases reflecting the best currently available
estimates and judgments of the management of HRD as to the estimated future
performance of HRD. We have not assumed any responsibility for the information
or estimates of future financial results provided to us and we have further
relied upon the assurances of the management of HRD that it is unaware of any
facts that would make the information or estimates provided to us incomplete or
misleading in any material respect. In arriving at our opinion, we have not
performed or obtained any independent appraisal of the assets of HRD. Our
opinion is necessarily based on economic, market and other conditions, and the
information made available to us, as of the date hereof.

Based on the foregoing, it is our opinion that the Transaction is fair, from a
financial point of view, to the Public Shareholders of HRD.

We have acted as financial advisor to HRD in connection with the Transaction and
will receive a fee for such services.


                                                      Very truly yours,

                                                      BEAR, STEARNS & CO. INC.


                                                      By: _________________
                                                          Managing Director








                                                                           2

















































                                 EXHIBIT (D)(1)
                                OFFER TO PURCHASE

































<PAGE>


                           OFFER TO PURCHASE FOR CASH
                                       BY
                  HORSEHEAD RESOURCE DEVELOPMENT COMPANY, INC.
                                      UP TO
                      1,751,600 SHARES OF ITS COMMON STOCK
                             AT $5.75 NET PER SHARE

THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
TIME, ON FRIDAY, JUNE 14, 1996, UNLESS THE OFFER IS EXTENDED.

     Horsehead Resource Development Company, Inc., a Delaware corporation (the
"Company"), is offering to purchase up to 1,751,600 shares of its common stock,
par value $.01 per share ("Shares"), for $5.75 per Share, net to the seller in
cash, upon the terms and subject to the conditions set forth in this Offer to
Purchase and in the related Letter of Transmittal (which together constitute the
"Offer").  The Company reserves the right, in its sole discretion, to purchase
more than 1,751,600 Shares pursuant to the Offer.  See Section 14.

                            -------------------------

THE OFFER IS NOT CONDITIONED UPON ANY MINIMUM NUMBER OF SHARES BEING TENDERED. 
THE OFFER IS, HOWEVER, SUBJECT TO CERTAIN OTHER CONDITIONS.  SEE SECTION 5.
                            -------------------------

     The Shares are traded on the Nasdaq Stock Market's National Market (the
"NNM").  On May 6, 1996, the last reported sale before the announcement of the
terms of the Offer on the NNM was $4.125 per Share.  On May 15, 1996, the last
full trading day before the commencement of the Offer, the closing bid price of
the Shares on the NNM was $6.00 per Share.   Stockholders are urged to obtain a
current market quotation for the Shares.

     UPON TERMINATION OF THE OFFER, THE SHARES WILL CEASE TO BE LISTED ON THE
NNM AND THE COMPANY WILL CEASE TO BE A REPORTING COMPANY UNDER THE SECURITIES
EXCHANGE ACT OF 1934, AS AMENDED  ("EXCHANGE ACT").  ACCORDINGLY, NO PUBLIC
MARKET FOR THE SHARES WILL EXIST AFTER THE OFFER.  SEE SECTION 13. 
                             -------------------------

     THE BOARD OF DIRECTORS OF THE COMPANY BY MAJORITY VOTE HAS DETERMINED THAT
BASED UPON THE OPINION OF THE FINANCIAL ADVISOR OF THE COMPANY THE OFFER
DESCRIBED HEREIN IS FAIR TO, AND IN THE BEST INTERESTS OF, THE PUBLIC
STOCKHOLDERS OF THE COMPANY, AND RECOMMENDS THAT STOCKHOLDERS ACCEPT THE OFFER
AND TENDER THEIR SHARES IN THE OFFER.  SEE "SPECIAL FACTORS - BACKGROUND OF THE
OFFER."

     THIS TRANSACTION HAS NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION (THE "SEC") NOR HAS THE SEC PASSED UPON THE FAIRNESS OR
MERITS OF SUCH TRANSACTION NOR UPON THE ACCURACY OR ADEQUACY OF THE INFORMATION
CONTAINED IN THIS DOCUMENT.  ANY REPRESENTATION TO THE CONTRARY IS UNLAWFUL.

                           --------------------------
                     The Information Agent for the Offer is:

                               Morrow & Co., Inc.
                                  May 16, 1996















<PAGE>






                                    IMPORTANT

     Any stockholder desiring to tender all or any portion of such stockholder's
Shares should either (1) complete and sign the Letter of Transmittal or a
facsimile copy thereof in accordance with the instructions in the Letter of
Transmittal, mail or deliver it and any other documents  required by the Letter
of Transmittal to Chemical Mellon Shareholder Services, L.L.C., the depositary
for the Offer (the "Depositary"), and either mail or deliver the certificates
for such Shares to the Depositary along with the Letter of Transmittal or follow
the procedure for book-entry transfer set forth in Section 2, or (2) request
such stockholder's broker, dealer, commercial bank, trust company or other
nominee to effect the transaction for such stockholder.  A stockholder having
Shares registered in the name of a broker, dealer, commercial bank, trust
company or other nominee must contact such broker, dealer, commercial bank,
trust company or other nominee if such stockholder desires to tender such
Shares.

     A stockholder who desires to tender Shares and whose certificates for such
Shares are not immediately available (or who cannot follow the procedure for
book-entry transfer on a timely basis) or who cannot transmit the Letter of
Transmittal and all other required documents to the Depositary before the
Expiration Date (as defined in Section 1) should tender such Shares by following
the procedure for guaranteed delivery set forth in Section 2.

                           ---------------------------

     Any questions or requests for assistance may be directed to the Information
Agent (as defined herein) at its address and telephone number set forth on the
back cover of this Offer to Purchase and requests for additional copies of this
Offer to Purchase, the Letter of Transmittal and the Notice of Guaranteed
Delivery may be directed to the Information Agent.  Stockholders may also
contact their broker, dealer, commercial bank, trust company or other nominee
for assistance concerning the Offer.

                           ---------------------------

     NO PERSON HAS BEEN AUTHORIZED TO MAKE ANY RECOMMENDATION ON BEHALF OF THE
COMPANY AS TO WHETHER STOCKHOLDERS SHOULD TENDER OR REFRAIN FROM TENDERING
SHARES PURSUANT TO THE OFFER.  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS IN CONNECTION WITH THE OFFER OTHER
THAN THOSE CONTAINED IN THIS OFFER TO PURCHASE OR IN THE LETTER OF TRANSMITTAL. 
IF MADE OR GIVEN, SUCH RECOMMENDATION AND SUCH INFORMATION AND REPRESENTATIONS
MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY.




















<PAGE>






                                TABLE OF CONTENTS


SECTION                                                                     PAGE
- -------                                                                     ----

INTRODUCTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
SPECIAL FACTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
     RELATIONSHIP BETWEEN MAJOR STOCKHOLDERS  . . . . . . . . . . . . . . . .  3
     BACKGROUND OF THE OFFER  . . . . . . . . . . . . . . . . . . . . . . . .  5
     PURPOSE OF THE OFFER . . . . . . . . . . . . . . . . . . . . . . . . . .  6
     CERTAIN EFFECTS OF THE OFFER . . . . . . . . . . . . . . . . . . . . . .  6
     POTENTIAL CONFLICTS OF INTEREST  . . . . . . . . . . . . . . . . . . . .  8
     POSITION OF THE BOARD OF DIRECTORS . . . . . . . . . . . . . . . . . . .  9
     OPINION OF FINANCIAL ADVISOR . . . . . . . . . . . . . . . . . . . . . . 10
THE OFFER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
     1.   NUMBER OF SHARES; EXTENSION OF THE OFFER  . . . . . . . . . . . . . 14
     2.   PROCEDURE FOR TENDERING SHARES  . . . . . . . . . . . . . . . . . . 15
     3.   WITHDRAWAL RIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . 17
     4.   ACCEPTANCE FOR PAYMENT OF SHARES AND PAYMENT OF PURCHASE PRICE  . . 18
     5.   CERTAIN CONDITIONS OF THE OFFER . . . . . . . . . . . . . . . . . . 19
     6.   PRICE RANGE OF SHARES; DIVIDENDS  . . . . . . . . . . . . . . . . . 20
     7.   BACKGROUND AND PURPOSE OF THE OFFER AND 
          THE PURCHASE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
     8.   CERTAIN INFORMATION CONCERNING THE COMPANY  . . . . . . . . . . . . 22
     9.   SOURCE AND AMOUNT OF FUNDS  . . . . . . . . . . . . . . . . . . . . 24
     10.  CERTAIN FEDERAL INCOME TAX CONSIDERATIONS . . . . . . . . . . . . . 24
     11.  TRANSACTIONS AND ARRANGEMENTS CONCERNING 
          THE SHARES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
     12.  CERTAIN LEGAL MATTERS; REGULATORY APPROVALS; NO APPRAISAL RIGHTS  . 28
     13.  EFFECTS OF THE OFFER ON THE MARKET FOR SHARES; REGISTRATION UNDER THE
          EXCHANGE ACT  . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
     14.  EXTENSION OF TENDER PERIOD; TERMINATION; AMENDMENTS . . . . . . . . 30
     15.  FEES AND EXPENSES . . . . . . . . . . . . . . . . . . . . . . . . . 31
     16.  MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . . . . . 32


Schedule I     Directors and Executive Officers of the Company

Schedule II    Directors and Executive Officers of  HII

Annex A        Opinion of Bear, Stearns & Co. Inc.






















<PAGE>






To the holders of common stock of Horsehead Resource Development Company, Inc.:

                                  INTRODUCTION

     Horsehead Resource Development Company, Inc., a Delaware corporation (the
"Company"), is offering to purchase up to 1,751,600 shares of its common stock,
par value $.01 per share ("Shares"), at the price of $5.75 per Share (the
"Purchase Price"), net to the seller in cash, upon the terms and subject to the
conditions set forth in this Offer to Purchase and in the related Letter of
Transmittal (which together constitute the "Offer").

     Upon termination of the Offer, the Company intends to delist the Shares
from the Nasdaq Stock Market National Market (the "NNM") and to cease to be a
reporting company under the Securities Exchange Act of 1934, as amended 
("Exchange Act").  Accordingly, no public market for the Shares will exist after
the Offer.  See Section 13.

     A special committee of independent directors ("Special Committee") of the
Company retained Bear, Stearns & Co. Inc. ("Bear Stearns") to determine the fair
price to be paid to the Company's public stockholders.  Based upon the opinion
of Bear Stearns, the Special Committee reported to the full Board of Directors
that $5.75 per Share was fair to the Company's public stockholders.

     The Board of Directors of the Company, after review of the opinion of Bear
Stearns, determined that the Company should make the Offer and that the $5.75
per Share price was fair to the Company's public stockholders.  

     THE OFFER IS NOT CONDITIONED UPON ANY MINIMUM NUMBER OF SHARES BEING
TENDERED.  THE OFFER IS, HOWEVER, SUBJECT TO CERTAIN OTHER CONDITIONS.  SEE
SECTION 5.

     As of May 15, 1996, there were 36,237,500 Shares outstanding and 337,500
Shares were reserved for issuance in connection with outstanding stock options
under the Company's stock option plan.  As of May 15, 1996, the Company's
directors and executive officers as a group beneficially own 34,607,600 Shares,
or 95.2% of the Shares outstanding, which includes 100,000 Shares issuable upon
exercise of stock options.  The 1,751,600 Shares that the Company is offering to
purchase in the Offer represent approximately 4.8% of the fully-diluted Shares
outstanding as of May 15, 1996.

     The Board of Directors has determined that it is no longer in the Company's
best interest that it remain a public company subject to the reporting
requirements of the Exchange Act.  The Offer is intended to afford the Company's
public stockholders the opportunity to sell their Shares at a price which the
Company believes is fair to its public stockholders.

     The Company has been informed by Horsehead Industries, Inc. ("HII"), which
owns 50.3% of the outstanding Shares,  that HII does  not intend to tender any
of its Shares.  B.U.S. Environmental Services, Inc. ("BES"), a wholly owned
subsidiary of B.U.S. Berzelius Umwelt-Service AG ("BUS AG," and together with
BES, "BUS"), which owns 44.9% of the outstanding 












<PAGE>






Shares, has declined to inform the Company of its intention with respect to its
Shares.  See "SPECIAL FACTORS - Relationship Between Major Stockholders,"
"Background of the Offer" and "Potential Conflicts of Interest."  After giving
effect to the repurchase of Shares by the Company pursuant to the Offer
(assuming 1,751,600 Shares are tendered by public stockholders and purchased
pursuant to the Offer), HII and BUS will own beneficially approximately 53% and
47% of the outstanding Shares, respectively. 

     Tendering stockholders will not be obligated to pay brokerage commissions,
solicitation fees or, subject to Instruction 6 of the Letter of Transmittal,
stock transfer taxes on the purchase of Shares by the Company.  The Company will
pay all fees and expenses of Morrow & Co., Inc. (the "Information Agent") and
Chemical Mellon Shareholder Services, L.L.C. (the "Depositary"), in connection
with the Offer.  See Section 15.

     The Shares are traded on the NNM.  On May 6, 1996, the last reported sale
before the announcement of the terms of the Offer on the NNM was $4.125 per
Share.  On May 15, 1996, the last full trading day before the commencement of
the Offer, the closing bid price of the Shares on the NNM was $6.00 per Share. 
See Section 6.  Stockholders are urged to obtain a current market quotation for
the Shares.

































                                        2







<PAGE>






                                 SPECIAL FACTORS


RELATIONSHIP BETWEEN MAJOR STOCKHOLDERS

     Prior to its initial public offering, the Company was privately held by HII
and BUS.  These major stockholders caused the Company to go public in 1990. 
Since going public in 1990, the Company has not raised additional capital
through the public market.

     It had been the intention of HII and BUS that the Company would exploit
BUS' technology in the United States and that BUS would exploit the Company's
technology in Europe.  In 1994, the Company terminated its efforts to
commercialize in the United States certain technology of BUS and also asserted
claims against BUS that it had not offered technology controlled by BUS to the
Company and such technology is currently being marketed by a competitor of the
Company.

     In an amendment to its Schedule 13D dated July 8, 1994, BUS disclosed its
intention to nominate a nine-member Board of Directors at the Company's Annual
Meeting originally called for June 30, 1994.  BUS' proposal was for the Board to
consist of four designees of HII, two designees of BUS and three "independent"
directors selected by BUS.  The Company was aware that BUS had contacted certain
of its public shareholders for the purpose of soliciting their votes for the BUS
slate.  In order to avoid a potentially costly and divisive proxy contest, at
the Board of Directors meeting held on August 12, 1994, the Board of Directors
unanimously nominated a slate of nominees which both HII and BUS voted for at
the Annual Meeting held on September 7, 1994.

     Until July 1995, the Company was 44.9% owned by HII and BUS, respectively. 
Pursuant to a Standstill Agreement and a Shareholders Agreement, HII and BUS had
agreed not to acquire additional Shares or take certain other actions without
the consent or vote of the other major stockholder.  In July 1995, after the
expiration of the Standstill Agreement, HII purchased 1,985,900 Shares at prices
of $8.00 to $10.25 per Share and, as a result, HII now beneficially owns 50.3%
of the outstanding Shares.  Management believes that BUS currently owns 44.9% of
the outstanding Shares.

     In August 1995, the Company filed suit (Horsehead Resource Development
                                             ------------------------------
Company, Inc. v. B.U.S. Environmental Services, Inc., et al., Docket No. 95 Civ.
- ------------------------------------------------------------
5802) in the U.S. District Court for the Southern District of New York against
BES, BUS AG and Lobbert Holding GmbH ("Lobbert") and certain of their officials
for violation of securities laws in failing to make adequate disclosures in
Schedule 13D filings with the Securities and Exchange Commission ("SEC") of the
nature and extent of Lobbert's interest in shares of the Company and of
information regarding environmental and criminal violations required by law to
be disclosed concerning Lobbert and its affiliates.  Since this lawsuit was
commenced Lobbert and BUS have amended their Schedule 13D filings twice in
response to information identified by the Company.  On February 20, 1996, the
Court ruled that Lobbert and its affiliates are required to disclose in 





                                        3







<PAGE>






their Schedule 13D filings all pending criminal proceedings against them
relating to environmental matters.

     The Company currently sells most of its recovered zinc to Zinc Corporation
of America ("ZCA"), a division of HII, under a long-term sales agreement (the
"Zinc Sales Agreement").  ZCA has notified the Company that the pricing terms of
the Zinc Sales Agreement no longer reflect market terms and that pursuant to the
Zinc Sales Agreement, ZCA intends to negotiate new lower pricing terms.  In
addition, the Company and ZCA each hold an equal ownership interest in Equidae
Partners, a partnership formed in 1990 to process, at a facility in
Bartlesville, Oklahoma, metal-bearing feedstocks to produce products for sale. 
The facility is owned by the partnership and situated on land leased from ZCA. 
ZCA has informed the Company that it does not want to continue the partnership
in its current form.  The Company is considering several responses to ZCA,
including possibly offering to purchase ZCA's interest in the partnership.

     The Company's management has expressed to the Board concerns regarding the
disadvantages which the Company encounters by virtue of being a single business
public company.  Among those disadvantages are the availability of information
regarding the Company's business that the Company believes has been used to its
disadvantage by its  competitors, the dependence of the Company on a single line
of business and customer for its zinc products and the small equity float
limiting the likelihood of equity appreciation.  Management has considered a
number of alternatives to addressing these concerns, including "going private"
to eliminate the requirement that the Company file reports with the SEC and
diversifying the Company's business through a business combination.  In this
connection, management has considered the possibility of seeking to combine with
ZCA on a non-leveraged basis.  Management has reached the conclusion, however,
that the need to obtain a super majority shareholder vote (which would require
the affirmative vote of BUS) to issue the equity necessary for such a
combination together with HII's reluctance to sell ZCA to a public company for
illiquid securities made this alternative impractical as a near term solution
for the problems faced by the Company.

     On March 7, 1996, HII by written consent as majority stockholder of the
Company removed Seymour Preston, Jr. as a director.  Mr. Preston had been
designated by BUS for election at the 1994 Annual Meeting.


















                                        4







<PAGE>







BACKGROUND OF THE OFFER

     In February 1994, because of the uncertainty of its prospects in the
industry, the competitive disadvantages to the Company of providing public
disclosure of its business operations, the relatively small public float and the
relative illiquidity of its publicly held shares, the Company considered
becoming a privately held corporation pursuant to a transaction in which the
common stock held by the public would have been purchased by the Company for
$5.75 per share in cash (the "Prior Proposal").  The Company engaged Bear
Stearns as a financial advisor to assist in its consideration of the Prior
Proposal.  In April 1994, the Company received an opinion of Bear Stearns
stating that, based upon the matters described therein, the Prior Proposal was
fair to the public stockholders of the Company.  However, because the directors
of the Company representing the interests of BUS stated that BUS would vote
against the Prior Proposal, the Company did not pursue the Prior Proposal at
that time.

     In February 1996, the Board of Directors began consideration of purchasing
1,751,600 Shares (representing 4.8% of the outstanding Shares) held by the
public and established the Special Committee to consider and report to the full
Board of Directors a fair price for the repurchase of the Shares held by the
public stockholders.  The Special Committee consists of Mark G. Solow and James
H. Dowling.  (Messrs. Solow and Dowling currently are not, and have not been in
the past, officers or employees of either HII or BUS or any of their affiliates.
Mr. Dowling was elected by shareholders at the annual meeting on September 7,
1994, and Mr. Solow was appointed by unanimous vote of the directors on August
7, 1995.)  The Special Committee retained Bear Stearns and based upon the report
of Bear Stearns, reported to the full Board of Directors that a price of $5.75
per Share for the Shares held by the Company's public stockholders would be
fair.

     On April 30, 1996, the Board of Directors received the report of the
Special Committee, a review by Bear Stearns of the procedures and basis for its
opinion and the opinion of Bear Stearns that, as of the date of such opinion,
based upon and subject to the considerations set forth therein, the Offer at
$5.75 per Share was fair, from a financial point of view, to the public
stockholders of the Company.  A majority of the Company's Board of Directors
(including both members of the Special Committee) approved the making of the
Offer.  None of the Company's directors are employed by the Company.  Gunter
Okon and Rolf Kola, the two designees of BUS on the Company's Board of
Directors, voted against the Offer.  Messrs. Okon and Kola, who had elected not
to attend the meeting in person and participated by teleconference,  explained
the reason for their dissent, noting that they were not physically present at
the meeting and could not participate in person (but only by telephone) in the
review by Bear Stearns of the basis for its opinion.  See "SPECIAL FACTORS --
Potential Conflicts of Interest."








                                        5







<PAGE>






PURPOSE OF THE OFFER

     The purpose of the Offer is to enable public stockholders of the Company to
sell their Shares at a fair price and without the usual transaction costs
associated with market sales, before the Company's Shares are delisted from the
NNM and deregistered under the Exchange Act.  Management believes that, even as
a public stock, there is a very limited market for the Shares, especially for
the sale of large blocks of Shares, and that the Company's public stockholders
derive little benefit from the Company's status as a publicly-held corporation. 
The limited supply of Shares traded in the public market and the predominant
ownership by HII and BUS provides little opportunity for a public stockholder to
realize the value of his investment in the Company after payment of commissions
and other market transaction costs.  To management's knowledge, no analysts
follow the Company or provide any research with regard to the Company.  The
Offer is intended to afford public stockholders the opportunity to sell their
Shares in light of the current relative illiquidity and lack of public float of
the Shares.  In addition, since going public in 1990, the Company has paid a
total of $0.18 per share in dividends and does not expect to pay further
dividends in the foreseeable future.  Moreover, the Offer will allow public
stockholders of the Company to dispose of an investment in a company which is
owned by two large stockholders which are unable to agree on the proper course
of business for the Company's future.  Following consummation of the Offer, the
Company will delist the Shares from the NNM and terminate registration of the
Shares under the Exchange Act as soon as possible.

     Since 1994, management of the Company has recommended to the Board of
Directors that the Company repurchase the Shares held by the public and thereby
cease to be a public company.  Since the Company has not diversified, management
believes that as a public company with essentially one product (i.e., the
processing of EAF dust), the Company suffers a severe competitive disadvantage. 
In particular, competitors of the Company can easily analyze the Company's
operations which puts the Company at a competitive disadvantage in the
marketplace.  In addition, the Company incurs costs related to its status as a
public reporting corporation under the federal securities laws including
indirect costs as a result of, among other things, the executive time expended
to prepare and review various filings, furnish information to stockholders and
attend to other stockholder matters.  Termination of registration as a public
company eliminates the costs and expenses of various federal securities filings
incurred with respect to regulatory and reporting requirements of the Company
and reduces the amount of time devoted by management in connection therewith. 

CERTAIN EFFECTS OF THE OFFER

     The trading of the Shares is currently reported on the NNM.  Following the
Offer, the Company intends to delist the Shares from the NNM and deregister
under the Exchange Act.  As of March 11, 1996, there were 1,751,600 Shares
publicly held and 190 shareholders of record of the outstanding Shares.  Due to
the foregoing number of record holders, the Shares no longer meet the
requirements for continued quotation on the NNM.  Pursuant to the NNM's
published guidelines, shares of common stock are not eligible to be included for
listing if, among other things, the number of shares publicly held falls below
200,000, the number of holders of shares 



                                        6







<PAGE>






falls below 400 or the aggregate market value of such publicly held shares does
not exceed $1,000,000.  If these standards are not met, quotations might
continue to be published in the NASDAQ SmallCap Market, Inc., but if the number
of holders of the shares falls below 300, or if the number of publicly held
shares falls below 100,000, or there is not at least one market maker for the
shares, NASD rules provide that the securities would no longer be "authorized"
for NASDAQ reporting and NASDAQ would cease to provide any quotations.  Shares
held directly or indirectly by an officer or director of the issuer or by any
beneficial owner of more than 10% of the shares of the issuer will ordinarily
not be considered as being publicly held for this purpose.  In the event the
Shares were no longer quoted on NASDAQ, quotations might still be available from
other sources.  The extent of the public market for the Shares and availability
of such quotations would, however, depend upon the number of holders of Shares
remaining at such time, the interest in maintaining a market in the Shares on
the part of securities firms, the termination of registration under the Exchange
Act as described below and other factors. 

     The Shares are currently "margin securities" under the rules of the Board
of Governors of the Federal Reserve System (the "Federal Reserve Board").  Among
other things, this has the effect of allowing brokers to extend credit on the
collateral of such Shares.  Depending upon factors similar to those described
above regarding listing and market quotations, it is likely that, following the
purchase of the Shares pursuant to the Offer the Shares will no longer
constitute "margin securities" for purposes of the Federal Reserve Board's
margin regulations.  In such event, Shares could no longer be used as collateral
for margin loans made by brokers.

     The Shares are currently registered under the Exchange Act which requires,
among other things, that the Company furnish certain information to its
stockholders and to the SEC and comply with the SEC's proxy rules in connection
with meetings of the Company's stockholders.  Registration of the Shares under
the Exchange Act is planned to be terminated upon application by the Company to
the SEC promptly following the termination of the Offer.

     The termination of the registration of the Shares under the Exchange Act
would substantially reduce the information required to be furnished by the
Company to its stockholders and to the SEC and would render inapplicable certain
provisions of the Exchange Act, including requirements that the Company file
periodic reports (including financial statements), the requirements of Rule 13e-
3 under the Exchange Act with respect to "going private" transactions,
requirements that the Company's officers, directors and ten-percent shareholders
file certain reports concerning ownership of the Company's equity securities and
provisions that any profit by such officers, directors and shareholders through
purchases and sales of the Company's equity securities within any six-month
period may be recaptured by the Company.  In addition, the ability of
"affiliates" of the Company and other persons to dispose of Shares which are
"restricted securities" under Rule 144 under the Securities Act of 1933, as
amended, may be impaired or eliminated.  If registration of the Shares under the
Exchange Act were terminated, the Shares would no longer be "margin securities"
or eligible for NNM reporting.

     Except as disclosed in this section and elsewhere in this Offer to
Purchase, the Company has no other present plans or proposals that relate to or
would result in (i) the acquisition by any person of additional securities of
the Company,
                                        7







<PAGE>






or the disposition of securities of the Company, (ii) an
extraordinary corporate  transaction, such as a merger, reorganization,
liquidation or sale or transfer of a material amount of assets, involving the
Company, (iii) any change in the present Board of Directors of the Company or
management of the Company, including, but not limited to, a plan or proposal to
change the number or term of the directors, to fill any existing vacancy on the
Board of Directors or to change any material term of the employment contract of
any executive officer, (iv) any material change in the present dividend rate or
policy or indebtedness or capitalization of the Company, (v) any other material
change in the Company's corporate structure or business or (vi) any change in
the Company's charter, by-laws or instruments corresponding thereto or any other
actions which may impede the acquisition of control of the Company by any
person.

     Following the Offer and deregistration of the Shares under the Exchange
Act, the Company may take certain action to eliminate any interests in the
Shares held by remaining minority public stockholders of the Company including,
but not limited to, merging out any remaining minority public stockholders of
the Company on such terms and conditions as the Company may determine.

POTENTIAL CONFLICTS OF INTEREST

     Stockholders should be aware that members of the Board of Directors of the
Company, other than the members of the Special Committee, have certain interests
which may present them with actual or potential conflicts of interest in
connection with the Offer.  William E. Flaherty, David W. Judelson, David O.
Carpenter and Tinkham Veale II are members of the Board of Directors of the
Company and are also stockholders and members of the board of directors of HII. 
William M. Quirk is President and Chief Executive Officer of the Company and
Senior Vice President of HII.  Peter W. Nelson is Senior Vice President of the
Company and Vice President of HII.  Robert P. Marshall is Vice President,
General Counsel and Secretary of the Company and Vice President and General
Counsel of HII.  Gunter Okon is a member of the Board of Directors of the
Company and is also Chairman of the Board of Directors, President and Treasurer
of  BES and Speaker of the Executive Board of BUS AG.  Rolf Kola is a member of
the Board of Directors of the Company and is also a Director and Vice President
of BES and a member of the Executive Board of BUS AG.  Gunter Okon and Rolf
Kola, designees of BUS, were the only directors of the Company who voted against
the Offer.  The Company has been informed that BUS has publicly disclosed that
it may be seeking to sell its Shares of the Company.  BUS has not approached HII
or the Company concerning the purchase of such Shares.














                                        8







<PAGE>







POSITION OF THE BOARD OF DIRECTORS

     The Board of Directors, based on the recommendation of its advisors and
after considering the purposes and effects of the Offer and other factors, has
concluded that the Offer is fair to, and in the best interest of, the public
stockholders of the Company and has approved the making of the Offer.  The Board
of Directors considered that the Offer is being made available to all public
stockholders on the same basis and each such stockholder may choose whether or
not to tender any Shares pursuant to the Offer.  In approving making the Offer
and determining that the Offer is fair to, and in the best interest of,  the
public stockholders of the Company, the Board of Directors consulted with its
legal and financial advisors as well as the Company's management and considered
numerous factors, including but not limited to (i) the business, operations,
capital structure, earnings, properties and prospects of the Company, as well as
the risks associated therewith, (ii) the fact that the Offer will provide public
stockholders with an opportunity to receive a fair price for their tendered
Shares prior to the Company's delisting and deregistering, (iii) recent market
prices for the Shares as well as market prices for the past several years, (iv)
the opinion of Bear Stearns, a nationally recognized investment banking firm,
that, based upon the matters described therein, as of the date of such opinion,
the Offer is fair from a financial point of view, to the public stockholders of
the Company and (v) the relatively small number of Shares (4.8% of the
outstanding shares) held by public stockholders.  In light of the number and
variety of factors that the Board of Directors considered in connection with its
evaluation of the Offer, it did not find it practicable to, and did not,
quantify or otherwise assign relative weights to these factors.

     The resolution of the Board of Directors approving the Offer authorizes the
Company to repurchase 1,751,600 Shares from its public stockholders.  BUS has
declined to disclose whether it intends to tender any of its Shares.  In the
event BUS tenders any of its Shares, the Board of Directors will determine
whether to increase the number of Shares to be repurchased pursuant to BUS.  See
Section 5.

     THE BOARD OF DIRECTORS OF THE COMPANY BY MAJORITY VOTE HAS DETERMINED THAT
BASED UPON THE OPINION OF THE FINANCIAL ADVISOR OF THE COMPANY THE OFFER
DESCRIBED HEREIN IS FAIR TO, AND IN THE BEST INTERESTS OF, THE PUBLIC
STOCKHOLDERS OF THE COMPANY AND RECOMMENDS THAT STOCKHOLDERS ACCEPT THE OFFER
AND TENDER THEIR SHARES IN THE OFFER.















                                        9







<PAGE>







OPINION OF FINANCIAL ADVISOR

     The Special Committee of the Board of Directors of the Company retained
Bear Stearns by letter agreement dated March 13, 1996 to act as its financial
advisor and to render its opinion to the Company's Board of Directors as to the
fairness of the Offer, from a financial point of view, to the public
stockholders of the Company.

     Bear Stearns delivered its oral opinion on April 30, 1996 to the Board of
Directors of the Company to the effect that, as of such date, the Offer was
fair, from a financial point of view, to the Company's public stockholders. 
Bear Stearns also has delivered an updated written opinion, dated the date of
this Offer to Purchase to the Company's Board of Directors to the effect that,
as of such date, the Offer was fair, from a financial point of view, to the
public stockholders of the Company.  No restrictions were imposed by the
Company's Board of Directors upon Bear Stearns with respect to the
investigations made or procedures followed by Bear Stearns in rendering its
opinions.

     The full text of Bear Stearns' fairness opinion, dated the date of this
Offer to Purchase, which sets forth certain assumptions made, certain procedures
followed and certain matters considered by Bear Stearns, is attached as Annex A
to this Offer to Purchase.  As set forth therein, Bear Stearns relied upon and
assumed the accuracy and completeness of the financial and other information
provided to it by the Company.  With respect to the Company's estimated future
financial results, Bear Stearns assumed that such estimates were reasonably
prepared on bases reflecting the best currently available estimates and
judgments of the management of the Company as to the estimated future
performance of the Company.  Bear Stearns did not perform any independent
verification of the information or estimates provided to it and Bear Stearns
relied upon the assurances of the management of the Company that they are
unaware of any facts that would make the information or estimates provided to
Bear Stearns incomplete or misleading in any material respect.  In arriving at
its opinion, Bear Stearns did not perform or obtain any independent appraisal of
the assets and liabilities of the Company, nor was it furnished with any such
appraisals.  Bear Stearns' opinion is necessarily based on economic, market and
other conditions, and the information made available to it as of the date of its
opinion.  Bear Stearns' opinion addresses only the fairness of the Offer from a
financial point of view, and does not constitute a recommendation to any
stockholder of the Company as to if such stockholder should tender in the Offer.

     The summary of the opinion of Bear Stearns set forth in this Offer to
Purchase is qualified in its entirety by reference to the full text of such
opinion.  The Company's stockholders are urged to, and should, read this opinion
carefully in its entirety in conjunction with this Offer to Purchase for
assumptions made, matters considered and limits of the review by Bear Stearns.

     In rendering its updated fairness opinion, Bear Stearns, among other
things:  (i) reviewed the Offer to purchase in substantially final form, (ii)
reviewed the Company's Annual Report to Stockholders and its Annual Report on
Form 10-K  for the fiscal years ended December 31, 1990 through 1995, (iii)
reviewed certain operating and financial information, including projections,


                                       10







<PAGE>






provided to Bear Stearns by the management of the Company, (iv) met with certain
members of the Company's senior management to discuss the Company's operations,
historical financial statements and future prospects, (v) reviewed the
historical stock prices, trading activity and valuation parameters of the
Company's common stock, (vi) reviewed publicly available financial data and
stock market performance data of companies which Bear Stearns deemed generally
comparable to the Company, (vii) reviewed the terms of recent acquisitions of
companies which Bear Stearns deemed generally comparable to the Company and
(viii) conducted such other studies, analyses, inquiries and investigations as
Bear Stearns deemed appropriate.

     The following is a brief summary of the financial, valuation and
comparative analyses used by Bear Stearns in connection with providing its
opinion to the Board of Directors of the Company.

     Comparative Company Analysis.  Using publicly available data, Bear Stearns
compared selected historical and estimated future financial and operating data,
and selected stock market data, of the Company to the corresponding data of
EnviroSource, Inc. ("EnviroSource"); IMCO Recycling, Inc. ("IMCO"); and Rollins
Environmental Services, Inc. ("Rollins") (collectively, the "Peer Group").

     In comparing the Company's recent operating performance to the recent
operating performance of EnviroSource, IMCO and Rollins, Bear Stearns noted,
among other things, that (i) the Company's growth rate in revenues for the three
year and one year periods ended December 31, 1995 were 0.2% and 3.1%, compared
with average growth rates for the Peer Group during the  same periods of 18.7%
and 20.5%; (ii) the Company's growth rate in earnings before interest and taxes
("EBIT") for the three year  and one year periods ended December 31, 1995 were
3.1% and (10.9%) compared to average growth rates for the Peer Group of 21.8%
and 14.8% (excluding Rollins which reported losses in the most recent period and
for whom growth rates were not meaningful); (iii) for the year ended December
31, 1996 the Company estimated a decline in earnings per share ("EPS") ranging
from 44.4% to 6.7% compared to an average growth rate of 24.4% for the Peer
Group (excluding Rollins for which data was not meaningful); (iv) the Company's
earnings before interest, taxes, depreciation and amortization ("EBITDA") as a
percent of sales for the latest twelve months ("LTM") ended December  31, 1995
was 36.1% compared to 28.7% and 21.4% for EnviroSource and IMCO, respectively
(Rollins reported EBITDA losses) and (v) the Company's latest twelve month
return on equity as 13.2% compared to 26.9% and 15.0% for EnviroSource and IMCO,
respectively (Rollins reported a negative return on equity of 14.7%).

     Bear Stearns performed an analysis of the Company's financial performance
and stock market trading data by comparing the stock price to latest twelve
months earnings per share (LTM EPS), stock price to estimated 1996 earnings per
share (1996 EPS), market equity value plus debt minus cash ("Enterprise Value")
to LTM EBITDA and EBIT, and Enterprise Value to estimated 1996 EBITDA and EBIT
of the Company to the Peer Group.  Bear Stearns performed such analysis using
closing stock prices on April 12, 1996.  In connection with such analysis, Bear
Stearns noted, among other things, that (i) the multiple of stock price to LTM
EPS was 12.7x for the Company compared to 16.7x for EnviroSource and 20.4x for
IMCO; (ii) the 




                                       11







<PAGE>
multiple of stock price to estimated 1996 EPS ranged from 23.0x to 13.7x for the
Company compared to 12.9x for EnviroSource and 16.8x for IMCO; (iii) the
multiple of Enterprise Value to LTM revenues was 1.9x for the Company compared
to 1.7x for EnviroSource and 1.9x for IMCO; (iv) the multiples of Enterprise
Value to LTM EBITDA and estimated 1996 EBITDA were 5.2x and a range of 7.8x to
5.5x for the Company compared to 6.0x and 5.8x for EnviroSource and 8.9x and
7.0x for IMCO; and (v) the multiples of Enterprise Value to LTM EBIT and
estimated 1996 EBIT were 7.4x and a range of 13.6x to 8.0x for the Company
compared to 10.7x and 9.9x for EnviroSource and 12.9x and 9.2x for IMCO. 
Valuation multiples for Rollins were deemed not meaningful as a result of
Rollins' reported losses.

     Precedent Transaction Analysis.  Bear Stearns reviewed and analyzed
publicly available information for six transactions in the metals reclamation
and hazardous waste industries.  The transactions considered included the
acquisitions of Allwaste Inc. by Equus II Inc.; Rust Environment Services, Inc.
by OHM Group; Aptus, Inc. by Rollins Environmental Services, Inc.; Chemical
Waste Management by WMX Technologies Inc.; HazWaste Industries, Inc. by Earth
Technology Corporation, USA; and Burlington Environmental, Inc. by Philip
Environmental, Inc. Although these various merger and acquisition transactions
were used for comparison purposes, none of such transactions is directly
comparable to the Company or the Offer.  Accordingly, an analysis of the results
described below is not mathematical; rather it involves complex considerations
and judgments concerning differences in financial and operating characteristics
and other factors that would necessarily affect the value of the Company versus
the acquisition values of the companies to which it was being compared.

     For the selected transactions, Bear Stearns reviewed the financial terms
and prices paid in such transactions in terms of the equity purchase price plus
assumed debt and preferred stock net of cash ("Total Transaction Value") of such
transactions as a multiple of sales, EBITDA and EBIT for the LTM period prior to
the announcement of such transactions.  The average ratio of the Total
Transaction Value to LTM sales, EBITDA and EBIT was 0.7x, 7.0x and 11.9x,
respectively, for the six transactions selected.  These ratios compare to 1.9x
LTM sales, 5.2x LTM EBITDA and 7.4x LTM EBIT for the Company pursuant to the
terms of the Offer.  Bear Stearns noted that the transaction multiples were
calculated using LTM earnings and, that with respect to the Company, do not
reflect management's assessment of the impact on future earnings of changing
industry conditions and a more competitive operating environment.  Bear Stearns
also noted that in the context of evaluating comparable acquisitions, many of
the transactions selected involved a sale of a majority of the outstanding
common stock of the acquired company and, therefore, the resulting valuation
multiples reflected a change of control premium which, with respect to the
Offer, would not be applicable.

     Discounted Cash Flow Analysis.  Bear Stearns performed a discounted cash
flow analysis upon the estimate of future financial results of the Company.  In
conducting such analysis, Bear Stearns relied on certain assumptions, future
financial estimates and other information provided by the management of the
Company.  Using discount rates ranging from 11% to 15% per annum reflecting Bear
Stearns' estimate of the Company's weighted average after-tax cost of capital,
Bear Stearns calculated the present value of the estimated future Free Cash
Flows (as defined below) for each of the twelve-month periods ending December
31, 1996 through 1999 and the 













                                       12

<PAGE>
present value of the terminal value (the "Terminal Value") of the Company at
December 31, 1999.  As used in Bear Stearns' analysis, "Free Cash Flow" means,
for each fiscal year, earnings before interest, taxes, depreciation and
amortization, less estimated taxes, less capital expenditures and less
incremental working capital requirements.  The Terminal Value was computed by
applying multiples of between 5.0 times and 7.0 times the forecasted EBITDA of
the Company for the twelve-month period ended December 31, 1999.  The range of
multiples and discount rates used in the analysis described above were chosen to
reflect the growth prospects and relative risk of the Company's operations and
were selected by Bear Stearns based on its review (including discussions with
the management of the Company) of the results and prospects of the Company and
Bear Stearns' expertise in securities valuation generally.  To calculate the
aggregate net present value of the equity of the Company, Bear Stearns
subtracted net debt (total debt less cash and cash equivalents) of the Company
from the sum of the present value of the estimated future Free Cash Flows and
the present value of the Terminal Value.  Based on this analysis and the
assumptions set forth above, Bear Stearns determined that the proposed Offer
price of $5.75 per Share was in excess of the per share values calculated
pursuant to this analysis.

     Historical Trading Analysis.  Bear Stearns reviewed the weekly trading
prices of the Company's common stock from January 1, 1993 to April 12, 1996. 
Bear Stearns also compared the weekly trading prices of the Company's common
stock versus the Peer Group, the Dow Jones Pollution Control Index (which
includes Browning-Ferris Industries, Dames & Moore, Inc., Donaldson Company,
Ogden Corporation, Rollins Environmental Services, Inc. and WMX Technologies)
and the S&P 500.  Bear Stearns noted that the price of the Company's common
stock traded in a range of $23/4 to $73/4 per share during 1993, $21/2 to $61/8
per share during 1994, $33/8 to $71/4 per share during 1995 and $37/8 to $6 per
share from January 1, 1996 to April 12, 1996.  Bear Stearns also noted that the
proposed Offer of $5.75 per Share represented a premium of 10.6% and 28.8% to
the average closing stock price for the one month and three month periods,
respectively, prior to April 12, 1996.

     The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to partial analysis or summary description.  Selecting
portions of the analyses or of the summary set forth above, without considering
the analysis as a whole, could create an incomplete view of the processes
underlying Bear Stearns' opinion.  In arriving at its opinion, Bear Stearns
considered the results of all such analyses.  In its analysis, Bear Stearns made
numerous assumptions with respect to business, industry performance, economic
conditions and other factors, many of which are beyond the control of Bear
Stearns or the Company.  No company or transaction used in the above analysis
for comparison is identical to the Company or the proposed Offer.  Accordingly,
an analysis of the results of the foregoing involves complex considerations and
judgments concerning differences in financial and operating characteristics and
other factors that could affect the public trading value of the companies being
compared.  Analyses based upon forecasts of future results are not necessarily
indicative of actual future results, which may be significantly more or less
favorable than suggested by such analyses.  The analyses were prepared by Bear
Stearns solely for purposes of providing its opinion as to the fairness of the
Offer, from a financial point of view, to the public stockholders of the
Company.  As described above, Bear Stearns' opinion and presentation to the
Company's Board of Directors 













                                       13

<PAGE>
was one of many factors taken into consideration by the Board of Directors in
making its determination to approve the Offer.  The foregoing summary does not
purport to be a complete description of the analysis performed by Bear Stearns.

     In the ordinary course of its business, Bear Stearns may actively trade the
equity securities of the Company for its own account and for the accounts of
customers and, accordingly, may, at any time, hold a long or short position in
such securities.

     Pursuant to a letter agreement, dated as of March 13, 1996, the Company
agreed to pay Bear Stearns a fee of $400,000 for rendering its opinion in
connection with the Offer.  The Company has also agreed to reimburse Bear
Stearns for its reasonable out-of-pocket expenses, including the reasonable fees
and disbursements of counsel, and to indemnify Bear Stearns and certain related
persons against certain liabilities in connection with the engagement of Bear
Stearns, including certain liabilities under the federal securities laws.

                                    THE OFFER

1.   NUMBER OF SHARES; EXTENSION OF THE OFFER

     Upon the terms and subject to the conditions of the Offer, the Company will
accept for payment  (and will thereby purchase) up to 1,751,600 Shares or such
lesser number of Shares as are properly tendered (and not withdrawn in
accordance with Section 3) before the Expiration Date at the Purchase Price. 
The term "Expiration Date" means 12:00 Midnight, New York City time, on Friday,
June 14, 1996, unless and until the Company shall have extended the period of
time for which the Offer is open, in which event the term "Expiration Date"
shall refer to the latest time and date at which the Offer, as so extended by
the Company, shall expire.  For a description of the Company's rights to extend
the period of time during which the Offer is open and to delay, terminate or
amend the Offer, see Section 14.  See also Section 5. 

     The Company reserves the right, in its sole discretion, at any time or from
time to time, to extend the period of time during which the Offer is open by
giving oral or written notice of such extension to the Depositary and making a
public announcement thereof.  See Section 14.  There can be no assurance,
however, that the Company will exercise its right to extend the Offer.

     The Offer is not conditioned upon any minimum number of Shares being
tendered.  The Offer is, however, subject to certain other conditions.  See
Section 5.

     All Shares purchased pursuant to the Offer will be purchased at the
Purchase Price, net to the seller in cash.  The Company reserves the right, in
its sole discretion, to purchase more than 1,751,600 Shares pursuant to the
Offer.  If (a) the Company (i) increases or decreases the price to be paid for
Shares or (ii) decreases the number of Shares being sought, and (b) the Offer is
scheduled to expire at any time earlier than the expiration of a period ending
on the tenth business day from and including the date that notice of such
increase or decrease is first published, sent or given in the manner specified
in Section 15, the Offer will be extended until the expiration of such ten
business day period.  For the purposes of the Offer, a "business day" 














                                       14

<PAGE>
means any day other than a Saturday, Sunday or federal holiday and consists of
the time period from 12:01 A.M. through 12:00 Midnight, New York City time.

     All Shares not purchased pursuant to the Offer will be returned to the
tendering stockholders at the Company's expense as promptly as practicable
following the Expiration Date.  The Company, upon the terms and subject to the
conditions of the Offer, will purchase at the Purchase Price all Shares tendered
and not withdrawn.

2.   PROCEDURE FOR TENDERING SHARES

     Proper Tender of Shares.  For Shares to be properly tendered pursuant to
the Offer:

          (a)  the certificates for such Shares (or confirmation of receipt of
     such Shares pursuant to the procedure for book-entry transfer set forth
     below), together with a properly completed and duly executed Letter of
     Transmittal (or a facsimile copy thereof) with any required signature
     guarantees, and any other documents required by the Letter of Transmittal,
     must be received before the Expiration Date by the Depositary at one of its
     addresses set forth on the back cover of this Offer to Purchase; or

          (b)  the tendering stockholder must comply with the guaranteed
     delivery procedure set forth below.

     Signature Guarantees and Methods of Delivery.  No signature guarantee is
required on the Letter of Transmittal if the Letter of Transmittal is signed by
the registered owner of the Shares (which term, for purposes of this Section 2,
includes any participant in The Depository Trust Company or the Philadelphia
Depository Trust Company (collectively, the "Book-Entry Transfer Facilities")
whose name appears on a security position listing as the owner of the Shares)
tendered therewith, and payment and delivery are to be made directly to such
registered owner at such owner's address shown on the records of the Company, or
if Shares are tendered for the account of a financial institution (including
most banks, savings and loan associations, and brokerage houses) that is a
participant in the Securities Transfer Agents Medallion Program, the New York
Stock Exchange Medallion Signature Program or the Stock Exchange Medallion
Program (each such entity being hereinafter referred to as an "Eligible
Institution").  In all other cases , all signatures on the Letter of Transmittal
must be guaranteed by an Eligible Institution.  See Instruction 1 of the Letter
of Transmittal.  If a certificate representing Shares is registered in the name
of a person other than the person signing a Letter of Transmittal, or if payment
is to be made, or certificates for Shares not purchased or tendered are to be
issued, to a person other than the registered owner, the certificate must be
endorsed or accompanied by an appropriate stock power, in either case signed
exactly as the name of the registered owner appears on the certificate, with the
signature on the certificate or stock power guaranteed by an Eligible
Institution.  In all cases, payment for Shares tendered and accepted for payment
pursuant to the Offer will be made only after timely receipt by the Depositary
of certificates for such Shares (or a timely confirmation of a book-entry
transfer of such Shares into the Depositary's account at one of the Book-Entry
Transfer Facilities), a properly completed and duly executed Letter of 















                                       15

<PAGE>
Transmittal (or a facsimile thereof) and any other documents required by the
Letter of Transmittal.

     The method of delivery of all documents, including stock certificates, the
Letter of Transmittal and any other required documents, is at the election and
risk of the tendering stockholder.  If delivery is by mail, registered mail with
return receipt requested, properly insured, is recommended.

     Federal Backup Withholding.  Absent an exemption applying under the
applicable law concerning "backup withholding" of federal income tax, the
Depositary will be required to withhold, and will withhold, 31% of the gross
proceeds otherwise payable to a stockholder (or other payee) pursuant to the
Offer unless the stockholder (or other payee) provides such person's tax
identification number (social security number or employer identification
number), certifies that such number is correct and certifies that such person is
not subject to backup federal income tax withholding.  Each tendering
stockholder, other than a non-corporate foreign stockholder, should complete and
sign the main signature form and the Substitute Form W-9 included as part of the
Letter of Transmittal so as to provide the information and certifications
necessary to avoid backup withholding, unless an applicable exemption exists and
is proved in a manner satisfactory to the Company and the Depositary.  Non-
corporate foreign stockholders generally should complete and sign a Form W-8,
Certificate of Foreign Status, a copy of which may be obtained from the
Depositary, in order to avoid backup withholding.  Backup withholding is not an
additional tax, and any taxes so withheld may be claimed as a credit against
such stockholder's federal income tax liability.

     For a discussion of certain other federal income tax consequences of the
Offer, see Section 10.

     Book-Entry Delivery.  The Depositary will establish an account with respect
to the Shares at each of the Book-Entry Transfer Facilities for purposes of the
Offer within two business days after the date of this Offer to Purchase.  Any
financial institution that is a participant in a Book-Entry Transfer Facility's
system may make book-entry delivery of the Shares by causing such facility to
transfer such Shares into the Depositary's account in accordance with such
facility's procedure for such transfer.  Even though delivery of Shares may be
effected through book-entry transfer into the Depositary's account at one of the
Book-Entry Transfer  Facilities, a properly completed and duly executed Letter
of Transmittal (or a facsimile thereof), with any required signature guarantees
and other required documents, must, in  any case, be transmitted to and received
by the Depositary at one of its addresses set forth on the back cover of this
Offer to Purchase before the Expiration Date, or the guaranteed delivery
procedure set forth below must be followed.  Delivery of the Letter of
Transmittal and any other required documents to one of the Book-Entry Transfer
Facilities does not constitute delivery to the Depositary.

     Guaranteed Delivery.  If a stockholder desires to tender Shares pursuant to
the Offer and such stockholder's stock certificates are not immediately
available (or the procedure for book-entry transfer cannot be followed on a
timely basis) or time will not permit the Letter of 
















                                       16

<PAGE>
Transmittal and all other required documents to reach the Depositary before the
Expiration Date, such Shares may nevertheless be tendered provided that all the
foregoing conditions are satisfied:

          (a)  such tender is made by or through an Eligible Institution;

          (b)  the Depositary receives (by hand, mail or facsimile transmission)
     before the Expiration Date, a properly completed and duly executed Notice
     of Guaranteed Delivery substantially in the form the Company has provided
     with this Offer to Purchase; and

          (c)  the certificates for all tendered Shares in proper form for
     transfer (or confirmation of book-entry transfer of such Shares into the
     Depositary's account at one of the Book-Entry Transfer Facilities),
     together with a properly completed and duly executed Letter of Transmittal
     (or a facsimile thereof) and other documents required by the Letter of
     Transmittal, are received by the Depositary within three NNM trading days
     after the date of execution of such Notice of Guaranteed Delivery.

     Validity of Delivery; Rejection of Shares; Waiver of Defects; No Obligation
To Give Notice of Defects.  All questions as to the number of Shares to be
accepted and the validity, form, eligibility (including time of receipt) and
acceptance for payment of any tender of Shares will be determined by the
Company, in its sole discretion, which determination shall be final and binding
on all parties.  The Company reserves the absolute right to reject any or all
tenders determined by it not to be in proper form or the acceptance for payment
of which may, in the opinion of the Company's counsel, be unlawful.  The Company
also reserves the absolute right to waive any of the conditions of the Offer
(except as otherwise provided in Section 5) and any defect or irregularity in
the tender of any particular Shares.   No tender of Shares will be deemed
properly made until all defects or irregularities have been cured or waived. 
None of the Company, the Information Agent, the Depositary or any other person
is or will be obligated to give notice of any defects or irregularities in
tenders, and none of them will incur any liability for failure to give any such
notice.

3.   WITHDRAWAL RIGHTS

     Except as otherwise provided in this Section 3, a tender of Shares pursuant
to the Offer is irrevocable.  Shares tendered pursuant to the Offer may be
withdrawn at any time before the Expiration Date and, unless theretofore
accepted for payment by the Company, after 12:00 Midnight, New York City time,
on July 16, 1996.

     For a withdrawal to be effective, the Depositary must timely receive (at
one of its addresses set forth on the back cover of this Offer to Purchase) a
written or facsimile transmission notice of withdrawal.  Any notice of
withdrawal must specify the name of the person having tendered the Shares to be
withdrawn, the number of Shares to be withdrawn and, if different from the name
of the person who tendered the Shares, the name of the registered owner of such
Shares.  If the certificates have been delivered or otherwise identified to the
Depositary, then, prior to the release of such certificates, the tendering
stockholder must also submit the 














                                       17

<PAGE>
serial numbers shown on the particular certificates evidencing such Shares and
the signature on the notice of withdrawal must be guaranteed by an Eligible
Institution (except in the case of Shares tendered by an Eligible Institution). 
If Shares have been delivered pursuant to the procedure for book-entry transfer
set forth in Section 2, the notice of withdrawal must specify the name and the
number of the account at the applicable Book-Entry Transfer Facility to be
credited with the withdrawn Shares and otherwise comply with the procedures of
such facility.

     All questions as to the form and validity (including time of receipt) of
notices of withdrawal will be determined by the Company, in its sole discretion,
which determination shall be final and binding on all parties.  None of the
Company, the Information Agent, the Depositary  or any other person is or will
be obligated to give any notice of any defects or irregularities in any notice
of withdrawal, and none of them will incur any liability for failure to give any
such notice.  A withdrawal of a tender of Shares may not be rescinded and Shares
properly withdrawn shall thereafter be deemed not to be validly tendered for
purposes of the Offer.  Withdrawn Shares, however, may be retendered before the
Expiration Date by again following one of the procedures described in Section 2.

4.   ACCEPTANCE FOR PAYMENT OF SHARES AND PAYMENT OF PURCHASE PRICE

     Upon the terms and subject to the conditions of the Offer, as soon as
practicable after the Expiration Date, the Company will purchase and pay the
Purchase Price for 1,751,600 Shares (subject to increase or decrease as provided
in Sections 1 and 14) or such lesser number of Shares as are properly tendered
and not withdrawn as permitted in Section 3.  For purposes of the Offer, the
Company will be deemed to have accepted for payment (and thereby purchased)
Shares which are tendered and not withdrawn when, as and if the Company gives
oral or written notice to the Depositary of the Company's acceptance of such
Shares for payment pursuant to the Offer.

     Certificates for all Shares not purchased pursuant to the Offer will be
returned to the tendering stockholders (or, in the case of Shares delivered by
book-entry transfer, such Shares will be credited to the account maintained with
one of the Book-Entry Transfer Facilities by the participant therein who so
delivered such Shares) at the Company's expense as promptly as practicable.

     Payment for Shares purchased pursuant to the Offer will be made by the
Company by depositing the Purchase Price therefor with the Depositary, which
will act as agent for tendering stockholders for the purpose of receiving
payment from the Company and transmitting payment to the tendering stockholders.
Notwithstanding any other provision hereof, payment for Shares accepted for
payment pursuant to the Offer will in all cases be made only after timely
receipt by the Depositary of certificates for such Shares (or a timely
confirmation by a Book-Entry Transfer Facility of book-entry transfer of such
Shares to the Depositary), a properly completed and duly executed Letter of
Transmittal (or a facsimile thereof) with any required signature guarantees and
any other required documents.  Under no circumstance will interest be paid on
the Purchase Price of the Shares to be paid by the Company, regardless of any
delay in making such payment.
















                                       18

<PAGE>
     The Company will pay any stock transfer taxes with respect to the transfer
and sale of Shares to it or its order pursuant to the Offer.  If, however,
payment is to be made to, or certificates for Shares not purchased or tendered
are to be registered in the name of, any person other than the registered
holder, or if tendered certificates are registered in the name of any person
other than the person(s) signing the Letter of Transmittal, the amount of any
stock transfer taxes (whether imposed on the registered holder or such other
person) payable on account of the transfer to such person will be deducted from
the Purchase Price unless evidence satisfactory to the Company of the payment of
such taxes or an exemption therefrom is submitted.  See Instruction 6 of the
Letter of Transmittal.

     ANY TENDERING STOCKHOLDER OR OTHER PAYEE WHO FAILS TO COMPLETE FULLY AND
SIGN THE SUBSTITUTE FORM W-9 INCLUDED IN THE LETTER OF TRANSMITTAL (OR, IN THE
CASE OF A NONCORPORATE FOREIGN STOCKHOLDER, A FORM W-8, WHICH IS OBTAINABLE FROM
THE DEPOSITARY) MAY BE SUBJECT TO A FEDERAL BACKUP WITHHOLDING TAX OF 31% OF THE
GROSS PROCEEDS TO BE PAID TO SUCH STOCKHOLDER OR OTHER PAYEE PURSUANT TO THE
OFFER.  SEE SECTIONS 2 AND 10.

5.   CERTAIN CONDITIONS OF THE OFFER

     Notwithstanding any other provision of the Offer, and in addition to (and
not in limitation of) the Company's right to extend, amend or terminate the
Offer at any time in its sole discretion, the Company shall not be required to
accept for payment or pay for any Shares tendered, and may extend, amend or
terminate the Offer if, before acceptance for payment of or payment for any
Shares, any of the following shall have occurred (or shall have been determined
by the Company to have occurred):

          (a)  there shall have been threatened, instituted or pending any
     action or proceeding by any government or governmental, regulatory or
     administrative agency or authority or tribunal, domestic or foreign, or by
     any person, domestic or foreign, before any court or governmental authority
     or regulatory or administrative agency, domestic or foreign which
     challenges the making of the Offer or the acquisition of Shares pursuant to
     the Offer, or otherwise, directly or indirectly, relates in any manner to
     or affecting the Offer; or

          (b)  there shall have been any action threatened, pending or taken, or
     approval withheld, or any statute, rule, regulation, judgment, order or
     injunction proposed, sought, promulgated, enacted, entered, amended,
     enforced or deemed to be applicable to the Offer or the Company, by any
     court or any government or governmental, regulatory or administrative
     authority, agency or tribunal, domestic or foreign, which, in the Company's
     sole judgment, would or might directly or indirectly (i) make the
     acceptance for payment of, or payment for, some or all the Shares illegal
     or otherwise restrict or prohibit consummation of the Offer, or (ii) delay
     or restrict the ability of the Company, or render the Company unable, to
     accept for payment, or pay for, some or all of the Shares; or 


















                                       19

<PAGE>
          (c) HII or BUS shall have tendered any of their Shares; or 

          (d) there shall have been any material adverse change in the business,
     condition (financial or other), assets, operations or prospects of the
     Company; 

which, in the reasonable good-faith judgment of the Company, in any such case
and regardless of the circumstances (including any action or inaction by the
Company) giving rise to such condition, makes it inadvisable to proceed with the
Offer or with such acceptance for payment or payment.

     On May 8, 1996, an action was filed (Brickell Partners v. William E.
                                          -------------------------------
Flaherty, et al., Civ. Action No. 14986) in the Delaware Court of Chancery by a
- -----------------
stockholder of the Company against the Company and certain members of its Board
of Directors (the "Action").  The Action alleges that the Offer is at an unfair
and inadequate price; that the Company's directors had breached their fiduciary
duties and that the Offer was wrongful, unfair and harmful to the Company's
public stockholders.  The Action seeks to enjoin the Offer (however plaintiff
has not moved for any injunctive relief) or require its rescission; and
compensatory damages.  The Company believes the Action to be without merit and
intends to vigorously defend this action.  The Company does not currently intend
to terminate the Offer by reason of the Action.

     The foregoing conditions are for the sole benefit of the Company and may be
asserted by the Company regardless of the circumstances (including any action or
inaction by the Company) giving rise to any such condition, and, except as set
forth in the next sentence, any such condition may be waived by the Company, in
whole or in part, at any time from time to time in its sole discretion.  The
Exchange Act requires that all conditions to the Offer must be satisfied or
waived before the final Expiration Date.  In certain cases, waiver of a
condition to the Offer would require an extension of the Offer.  See Section 14.

     The Company's failure at any time to exercise any of the foregoing rights
shall not be deemed a waiver of any such right; the waiver of any such right
with respect to particular facts and circumstances shall not be deemed a waiver
with respect to any other facts or circumstances; and each such right shall be
deemed an ongoing right which may be asserted at any time and from time to time.
Any determination by the Company concerning the events described above and any
related judgment by the Company regarding the inadvisability of proceeding with
the acceptance for payment or payment for any tendered Shares will be final and
binding on all parties.

6.   PRICE RANGE OF SHARES; DIVIDENDS

     The Shares are traded on the NNM under the symbol "HHRD."  The table below
sets forth, for the periods indicated, the high and low closing bid prices per
Share on the NNM and the dividends declared per Share.




















                                       20

<PAGE>

                                                          Per Share
                             High           Low           Dividend
                             ----           ---           ---------
FISCAL YEAR ENDED
December 31, 1993
     First Quarter           $7 3/4              $5 1/4            --
     Second Quarter           5 3/4               4                --
     Third Quarter            5 1/2               3 3/4            --
     Fourth Quarter           4 1/2               2 3/4           $0.11

FISCAL YEAR ENDED
December 31, 1994
     First Quarter            5 3/4               3 1/2            --
     Second Quarter           4 1/2               2 1/2            --
     Third Quarter            4 7/8                   3            --
     Fourth Quarter           6 1/8                   4            --

FISCAL YEAR ENDED
December 31, 1995
     First Quarter            7 1/4               4 1/2            --
     Second Quarter           5 7/8               3 7/8            --
     Third Quarter            7 1/4               3 5/8            --
     Fourth Quarter          5 23/32              4 1/4            --


     The Board of Directors expects that the Company's earnings, if any, will
generally be retained to invest in the operations of the business.  On December
17, 1993, the Board declared a cash dividend of 11 cents per share which was 
paid on January 3, 1994 to stockholders of record on December 28, 1993.  The 
Board has not adopted a policy of paying regular dividends.  Any future 
determination as to the payment of dividends will depend upon the Company's 
financial condition, results of operations, capital requirements and such 
other factors as the Board of Directors deems relevant.  The Company's 
revolving credit agreement restricts the Company's ability to pay dividends 
under certain circumstances.

     On May 6, 1996, the last reported sale before the announcement of the Offer
on the NNM was $4.125 per Share.  On May 15, 1996, the last full trading day
before the commencement of the Offer, the closing bid price of the Shares on the
NNM was $6.00 per Share.  Stockholders are urged to obtain a current market
quotation for the Shares.

7.   BACKGROUND AND PURPOSE OF THE OFFER AND THE PURCHASE

     The Offer is designed to enable stockholders of the Company to sell their
Shares without the usual transaction costs associated with market sales before
the Company is deregistered. However, proceeds of sales pursuant to the Offer
may be treated as a dividend taxable as ordinary income to a stockholder rather
than capital gain.  See Section 10. 



















                                       21

<PAGE>

     Shares acquired by the Company pursuant to the Offer will be held in the
Company's treasury and will be available for the Company to issue without
further stockholder action (except as required by applicable law or the rules of
the NNM on which the Shares are traded).  

     The Company has been informed by its directors and executive officers that
they or members of their families intend to tender approximately 21,700 Shares
owned by them in their individual capacity pursuant to the Offer.  HII has
informed the Company that none of the Shares beneficially owned by it will be
tendered to the Company pursuant to the Offer.  BUS has declined to inform the
Company whether or not it will tender any of the Shares beneficially owned by
it.  After giving effect to the repurchase of Shares by the Company pursuant to
the Offer (assuming 1,751,600 Shares are tendered by the public stockholders and
purchased pursuant to the Offer), HII and BUS will beneficially own
approximately 53% and 47% of the outstanding Shares, respectively.

8.   CERTAIN INFORMATION CONCERNING THE COMPANY

     The Company is an environmental services company engaged in inorganic
hazardous waste resource recovery.  The Company's primary business consists of
processing electric arc furnace dust ("EAF dust"), a listed hazardous waste
under the Resource Conservation and Recovery Act.  The Company also processes
zinc-bearing wastes other than EAF dust, which include sludges from metal
platers and filtercakes from wastewater treatment.

     The Company converts hazardous wastes into four useful products:  zinc
calcine, crude zinc oxide, iron rich material ("IRM") and lead concentrate.  The
Company accepts wastes for a fee charged to the generator and processes the
material utilizing high temperature metals recovery technologies.  The Company
sells most of the recovered zinc to ZCA pursuant to long-term sales agreements,
and the balance to other zinc refineries around the world.  The Company's IRM is
sold for a number of applications including as an aggregate for use in hot-mix
asphalt, as an iron additive in the manufacture of cement, as aggregate for
construction and road maintenance, and as a feedstock in the production of
steel.  The Company's lead concentrate product is further processed into
additional products.

     The Company's principal executive office is located at 110 East 59th
Street, New York, New York 10022, and its telephone number is (212) 527-3003.

     Summary Historical Financial Information.  The summary financial
information for the years ended December 31, 1995 and 1994 set forth below has
been derived from, and should be read in conjunction with, the audited financial
statements (including the related notes thereto) included in the Company's
Annual Report on Form 10-K for the year ended December 31, 1995 (the "Form 10-
K"), which is being provided to the Company's public stockholders simultaneously
with the delivery of this Offer to Purchase.  The summary financial information
for the three month periods ended March 31, 1996 and 1995, has been derived
from, and should be read in conjunction with, the unaudited financial statements
for such periods included in the Company's Quarterly Report on Form 10-Q for the
period ended March 31, 1996 (the "Form 















                                       22

<PAGE>

10-Q").  Such summary financial information is qualified in its entirety by
reference to such reports and all financial statements and related notes
contained therein.  The Form 10-K and the Form 10-Q should be available for
examination, and copies should be obtainable, in the manner set forth below
under "Additional Information."

     The financial information for the three month periods ended March 31, 1996
and 1995 has not been audited, and in the opinion of management reflects all
adjustments (consisting of normal recurring adjustments) which are necessary for
a fair presentation of such information.  Results for the three month periods
are not necessarily indicative of results for the full year. 

                  Horsehead Resource Development Company, Inc.
                    Summary Historical Financial Information
           (Dollars In Thousands, Except Per Share And Ratio Amounts)

                                        Quarter Ended      Year Ended
                                           March 31,       December 31, 
                                      ----------------  ----------------
                                       1996     1995      1995     1994
                                       ----     ----      ----     ----

       Income Statement:

         Net sales . . . . . . . . .  $24,938  $27,337   $101,500  $103,336
         Operating profit  . . . . .    3,962    6,921    26,120     23,716
         Income before income 
          taxes  . . . . . . . . . .    4,203    6,864    26,162     22,441
         Income before extraordinary    
          items. . . . . . . . . . .    2,730    4,203    16,395     11,154
         Net income  . . . . . . . .    2,730    4,203    16,395     11,154

       Balance Sheet (at end of                                    
           period):                                                    
         Working capital . . . . . .   74,559   52,222    70,823     45,484
         Total assets  . . . . . . .  208,295  196,505   205,479    192,453
         Total long-term              
          indebtedness   . . . . . .   34,100   34,100    34,100     34,100
         Shareholder's equity  . . .  127,163  112,241   124,433    108,038

       Per Share(a)                                                
         Net income per common share    $0.08    $0.12     $0.45      $0.31
         Net income per common share                               
           (and common share                               
           equivalents)  . . . . . .    $0.08    $0.12     $0.45      $0.31
         Net income per share on a                                 
           fully diluted basis . . .    $0.08    $0.12     $0.45      $0.31
         Ratio of earnings to fixed                                
           charges . . . . . . . . .     8.3x    13.6x     13.0x      15.1x
         Book value per share  . . .    $3.51    $3.10     $3.43      $2.98


- --------------
(a) Average number of shares of common stock outstanding for all periods was
    36,237,500.
 






                                       23

<PAGE>







     Additional Information.  The Company is subject to the informational
reporting requirements of the Exchange Act and in accordance therewith the
Company files reports, proxy statements and other information with the SEC
relating to its business, financial condition and other matters.  The Company is
required to disclose in such proxy statements and reports certain information,
as of particular dates, concerning the Company's directors and officers, their
remuneration, stock options granted to them, the principal owners of the
Company's securities and any material interest of such persons in transactions
with the Company.  Additionally, information concerning the Company is set forth
in the Form 10-K.  The Company has also filed a Transaction Statement on
Schedule 13E-3 and an Issuer Tender Offer Statement on Schedule 13E-4 with the
SEC which includes certain additional information relating to the Offer.  The
reports, proxy statements and other information filed by the Company with the
SEC can be inspected and copied at the public reference facilities maintained by
the SEC at Judiciary Plaza, Room 1024, 450 Fifth Street, N.W., Washington, D.C.
20549, and (except for the Schedule 13E-3 and Schedule 13E-4) at the regional
offices of the SEC at Seven World Trade Center, 13th Floor, New York, New York
10048 and Citicorp Center, 500 West Madison Street (Suite 1400), Chicago,
Illinois 60661.  Copies of such material also can be obtained at prescribed
rates from the Public Reference Section of the SEC, 450 Fifth Street, N.W.,
Washington, D.C. 20549.

9.   SOURCE AND AMOUNT OF FUNDS

     If the Company were to purchase 1,751,600 Shares pursuant to the Offer at a
Purchase Price of $5.75 per Share, the maximum aggregate cost of the Offer would
be $10,071,700, which would be paid from cash and cash equivalents of the
Company.  The fees and expenses associated with the Offer are estimated by the
Company to be $655,000.

10.  CERTAIN FEDERAL INCOME TAX CONSIDERATIONS

     The following is a general summary under currently applicable law of
certain federal income tax considerations generally applicable to the Offer. 
The discussion set forth below is for general information only and the tax
treatment described herein may vary depending upon each stockholder's particular
circumstances and tax position. Certain stockholders (including insurance
companies, tax-exempt organizations, financial institutions or broker-dealers,
regulated investment companies, foreign corporations, persons who are not
citizens or residents of the United States, stockholders who do not hold their
Shares as capital assets, stockholders who hold their Shares as part of a
straddle hedging transaction or conversion transaction, and stockholders who
have acquired their Shares upon the exercise of options or otherwise as
compensation) may be subject to special rules not discussed below.  No ruling
from the Internal Revenue Service ("IRS") will be applied for with respect to
the federal income tax consequences discussed herein and, accordingly, there can
be no assurance that the IRS will agree with the conclusions stated.  The
discussion does not consider the effect of any applicable foreign, state, local
or other tax laws.  EACH STOCKHOLDER SHOULD CONSULT HIS OR HER OWN TAX ADVISOR
AS TO THE PARTICULAR TAX CONSEQUENCES TO HIM OR HER OF THE OFFER, INCLUDING THE
APPLICABILITY AND EFFECT OF ANY FOREIGN, STATE, LOCAL OR OTHER TAX LAWS, ANY
RECENT CHANGES IN APPLICABLE TAX LAWS AND ANY PROPOSED LEGISLATION.


                                       24







<PAGE>






     IN GENERAL.  A stockholder's exchange of Shares for cash pursuant to the
Offer will be a taxable transaction for federal income tax purposes, and may
also be a taxable transaction under applicable state, local, foreign or other
tax laws.  The federal income tax consequences to a stockholder may vary
depending upon the stockholder's particular facts and circumstances.

     TREATMENT AS A SALE OR EXCHANGE.  Under Section 302 of the Code, a transfer
of Shares to the Company pursuant to the Offer will, as a general rule, be
treated as a sale or exchange of the Shares if the receipt of cash upon the sale
(a) is "substantially disproportionate" with respect to the stockholder, (b)
results in a "complete redemption" of the stockholder's interest in the Company
or (c) is "not essentially equivalent to a dividend" with respect to the
stockholder.  These tests (the "Section 302 tests") are explained more fully
below.

     If any of the Section 302 tests is satisfied, a tendering stockholder will
recognize gain or loss equal to the difference between the amount of cash
received by the stockholder pursuant to the Offer (less any portion thereof
attributable to accrued but unpaid dividends which is taxable as a dividend) and
the stockholder's basis in the Shares sold pursuant to the Offer.  If the Shares
are held as capital assets, the gain or loss will be capital gain or loss, which
will be long-term capital gain or loss if the Shares have been held for more
than one year.

     TREATMENT AS A DIVIDEND.  If none of the Section 302 tests is satisfied and
the Company has sufficient earnings and profits, a tendering stockholder will be
treated as having received a dividend taxable as ordinary income in an amount
equal to the entire amount of cash received by the stockholder pursuant to the
Offer.  This amount will not be reduced by the stockholder's basis in the Shares
sold pursuant to the Offer, and (except as described below for corporate
stockholders eligible for the dividends-received deduction) the stockholder's
basis in those Shares will be added to the stockholder's basis in his or her
remaining Shares.  No assurance can be given that any of the Section 302 tests
will be satisfied as to any particular stockholder, and thus no assurance can be
given that any particular stockholder will not be treated as having received a
dividend taxable as ordinary income.

     CONSTRUCTIVE OWNERSHIP OF STOCK.  In determining whether any of the Section
302 tests is satisfied, a stockholder must take into account not only stock of
the Company actually owned by the stockholder, but also stock of the Company
that is constructively owned within the meaning of Section 318 of the Code. 
Under Section 318, a stockholder may constructively own stock of the Company
actually owned, and in some cases constructively owned, by certain related
individuals and certain entities in which the stockholder has an interest, as
well as any stock of the Company the stockholder has a right to acquire by
exercise of an option or by the conversion or exchange of a security.

     THE SECTION 302 TESTS.  One of the following tests must be satisfied in
order for the sale of Shares pursuant to the Offer to be treated as a sale or
exchange rather than as a dividend distribution.

          (a)  Substantially Disproportionate Test.  The receipt of cash by a
     stockholder will be substantially disproportionate with respect to the
     stockholder if the percentage of 

                                       25







<PAGE>






     the outstanding voting stock of the Company actually and constructively 
     owned by the stockholder immediately following the sale of Shares pursuant
     to the Offer (treating Shares purchased pursuant to the Offer as not
     outstanding) is less than 80% of the percentage of the outstanding voting
     stock of the Company actually and constructively owned by the stockholder
     immediately before the exchange (treating Shares purchased pursuant to the
     Offer as outstanding).  Stockholders should consult their tax advisors
     concerning the application of the substantially disproportionate test to
     their particular circumstances.

          (b)  Complete Redemption Test.  The receipt of cash by a stockholder
     will be a complete redemption of the stockholder's interest if either (i)
     all of the stock of the Company actually and constructively owned by the
     stockholder is sold pursuant to the Offer or (ii) all of the stock of the
     Company actually owned by the stockholder is sold pursuant to the Offer and
     the stockholder is eligible to waive, and effectively waives, the
     attribution of all stock of the Company constructively owned by the
     stockholder in accordance with the procedures described in Section
     302(c)(2) of the Code.

          (c)  Not Essentially Equivalent To A Dividend Test.  The receipt of
     cash by a stockholder will not be essentially equivalent to a dividend if
     the stockholder's exchange of Shares pursuant to the Offer results in a
     meaningful reduction of the stockholder's proportionate interest in the
     Company.  Whether the receipt of cash by a stockholder will not be
     essentially equivalent to a dividend will depend on the stockholder's
     particular facts and circumstances.  However, in certain circumstances, in
     the case of a small minority stockholder, even a small reduction may
     satisfy this test.  For example, the IRS has indicated in a published
     ruling that in the case of a small minority stockholder of a publicly held
     corporation who exercises no control over corporate affairs, a reduction in
     the stockholder's proportionate interest in the corporation from .0001118%
     to .0001081% (which represented only a 3.3% reduction in the stockholder's
     percentage ownership of outstanding shares for purposes of the
     substantially disproportionate test) would constitute a meaningful
     reduction.  Stockholders expecting to rely on the "not essentially
     equivalent to a dividend test" should consult their own tax advisors
     regarding its application in their particular circumstances.

     Under certain circumstances, it may be possible for a tendering stockholder
to satisfy one of the Section 302 tests by contemporaneously selling or
otherwise disposing of all or some of the stock of the Company that is actually
or constructively owned by the stockholder but that is not purchased pursuant to
the Offer.  Correspondingly, a stockholder may not be able to satisfy any of the
Section 302 tests because of contemporaneous acquisitions of stock of the
Company by the stockholder or by a related party whose stock is constructively
owned by the stockholder.  Stockholders should consult their tax advisors
regarding the consequences of such sales or acquisitions in their particular
circumstances.

     SPECIAL RULES FOR CORPORATE STOCKHOLDERS.  If the exchange of Shares by a
corporate stockholder does not satisfy any of the Section 302 tests and is
therefore treated as a dividend, the stockholder may be entitled to a dividends-
received deduction equal to 70% of 

                                       26







<PAGE>






the dividend.  There are a number of limitations on the availability of the
deduction, however, and the dividends-received deduction may not be available or
could be limited if, for example, the Company does not satisfy certain holding
period requirements with respect to the Shares or the Shares are treated as
"debt financed portfolio stock."  Finally, it is expected that if a dividends-
received deduction is available, the dividend will generally constitute an
extraordinary dividend under Section 1059 of the Code.  As a result, a corporate
stockholder will be required to reduce its tax basis in its Shares (but not
below zero) by the non-taxed portion of the dividend (that is, the portion of
the dividend equal to the dividends-received deduction).  If the non-taxed
portion of the dividend exceeds the corporate stockholder's tax basis in its
Shares, the excess must be treated as gain from the sale of the Shares for the
taxable year in which a sale or disposition of the Shares occurs.

     BACKUP WITHHOLDING.  See Section 3 concerning the potential application of
federal backup withholding.

11.  TRANSACTIONS AND ARRANGEMENTS CONCERNING THE SHARES

     Based upon the Company's records and upon information provided to the
Company by its directors, executive officers and affiliates, neither the Company
nor, to the best of the Company's knowledge, any of the directors or executive
officers of the Company, any person controlling the Company, nor any associate
of any of the foregoing, has effected any transactions in the Shares during the
60 days prior to the date hereof.

     Except as set forth in this Offer to Purchase, neither the Company nor, to
the best of the Company's knowledge, any of its affiliates, directors or
executive officers or any person controlling the Company, is a party to any
contract, arrangement, understanding or relationship with any other person
relating, directly or indirectly, to, or in connection with, the Offer with
respect to any securities of the Company (including, but not limited to, any
contract, arrangement, understanding or relationship concerning the transfer or
the voting of any such securities, joint ventures, loan or option arrangements,
puts or calls, guarantees of loans, guarantees against loss or the giving or
withholding of proxies, consents or authorizations).  Except as set forth in
this Offer to Purchase, since the commencement of the Company's second full
fiscal year preceding the date of this Offer to Purchase, no contacts or
negotiation concerning a merger, consolidation, or acquisition, a tender offer
for or other acquisition of any securities of the Company, an election of
directors of the Company, or a sale or other transfer of a material amount of
assets of the Company, has been entered into or occurred between any affiliates
of the Company or between the Company or any of its affiliates and any
unaffiliated person.

     The Company has been informed by its directors and executive officers that
they currently intend to tender Shares owned by them pursuant to the Offer.








                                       27







<PAGE>






12.  CERTAIN LEGAL MATTERS; REGULATORY APPROVALS; NO APPRAISAL RIGHTS

     The Company is not aware of any license or regulatory permit that appears
to be material to its business that might be adversely affected by its
acquisition of Shares as contemplated in the Offer or of any approval or other
action by any government or governmental, administrative or regulatory authority
or agency, domestic or foreign, that would be required for the Company's
acquisition or ownership of Shares pursuant to the Offer.  Should any such
approval or other action be required, the Company currently contemplates that it
will seek such approval or other action.  The Company cannot predict whether it
may determine that it is required to delay the acceptance for payment of Shares
tendered pursuant to the Offer pending the outcome of any such matter.  There
can be no assurance that any such approval or other action, if needed, would be
obtained or would be obtained without substantial conditions or that the failure
to obtain any such approval or other action might not result in adverse
consequences to the Company's business.  The Company intends to make all
required filings under the Exchange Act.  The Company's obligation under the
Offer to accept Shares for payment is subject to certain conditions.  See
Section 5.  No appraisal rights are available to holders of the Shares in
connection with the Offer.

13.  EFFECTS OF THE OFFER ON THE MARKET FOR SHARES; REGISTRATION UNDER THE
     EXCHANGE ACT

     The Company's purchase of Shares pursuant to the Offer will reduce the
number of Shares that might otherwise trade publicly and will reduce the number
of stockholders.

     The trading of the Shares is currently reported on the NNM.  Following the
Offer, the Company intends to delist the Shares from the NNM and deregister
under the Exchange Act.  As of March 11,1996, there were 1,751,600 Shares
publicly held and 190 shareholders of record of the outstanding Shares.  Due to
the foregoing number of record holders, the Shares no longer meet the
requirements for continued quotation on the NNM.  Pursuant to the NNM's
published guidelines, shares of common stock are not eligible to be included for
listing if, among other things, the number of shares publicly held falls below
200,000, the number of holders of shares falls below 400 or the aggregate market
value of such publicly held shares does not exceed $1,000,000.  If these
standards are not met, quotations might continue to be published in the NASDAQ
SmallCap Market, Inc., but if the number of holders of the shares falls below
300, or if the number of publicly held shares falls below 100,000, or there is
not at least one market maker for the shares, NASD rules provide that the
securities would no longer be "authorized" for NASDAQ reporting and NASDAQ would
cease to provide any quotations.  Shares held directly or indirectly by an
officer or director of the issuer or by any beneficial owner of more than 10% of
the shares of the issuer will ordinarily not be considered as being publicly
held for this purpose.  In the event the Shares were no longer quoted on NASDAQ,
quotations might still be available from other sources.  The extent of the
public market for the Shares and availability of such quotations would, however,
depend upon the number of holders of Shares remaining at such time, the interest
in maintaining a market in the Shares on the part of securities firms, the
termination of registration under the Exchange Act as described below and other
factors. 


                                       28







<PAGE>







     The Shares are currently "margin securities" under the rules of the Federal
Reserve Board.  Among other things, this has the effect of allowing brokers to
extend credit on the collateral of such Shares.  Depending upon factors similar
to those described above regarding listing and market quotations, it is likely
that, following the purchase of the Shares pursuant to the Offer the Shares will
no longer constitute "margin securities" for purposes of the Federal Reserve
Board's margin regulations.  In such event, Shares could no longer be used as
collateral for margin loans made by brokers.

     The Shares are currently registered under the Exchange Act which requires,
among other things, that the Company furnish certain information to its
stockholders and to the SEC and comply with the SEC's proxy rules in connection
with meetings of the Company's stockholders.  Registration of the Shares under
the Exchange Act is planned to be terminated upon application by the Company to
the SEC promptly following the termination of the Offer.

     The termination of the registration of the Shares under the Exchange Act
would substantially reduce the information required to be furnished by the
Company to its stockholders and to the SEC and would render inapplicable certain
provisions of the Exchange Act, including requirements that the Company file
periodic reports (including financial statements), the requirements of Rule 13e-
3 under the Exchange Act with respect to "going private" transactions,
requirements that the Company's officers, directors and ten-percent shareholders
file certain reports concerning ownership of the Company's equity securities and
provisions that any profit by such officers, directors and shareholders through
purchases and sales of the Company's equity securities within any six-month
period may be recaptured by the Company.  In addition, the ability of
"affiliates" of the Company and other persons to dispose of Shares which are
"restricted securities" under Rule 144 under the Securities Act of 1933, as
amended, may be impaired or eliminated.  If registration of the Shares under the
Exchange Act were terminated, the Shares would no longer be "margin securities"
or eligible for NNM reporting.

     Following the Offer and deregistration of the Shares under the Exchange
Act, the Company may take certain action to eliminate any interests in the
Shares held by remaining minority public stockholders of the Company including,
but not limited to, merging out any remaining minority public stockholders of
the Company on such terms and conditions as the Company may determine.
















                                       29







<PAGE>






14.  EXTENSION OF TENDER PERIOD; TERMINATION; AMENDMENTS

     The Company expressly reserves the right, in its sole discretion, at any
time or from time to time and regardless of whether or not any of the events set
forth in Section 5 shall have occurred or shall be deemed by the Company to have
occurred, to extend the period of time during which the Offer is open and
thereby delay acceptance for payment of any Shares by giving oral or written
notice of such extension to the Depositary and making a public announcement
thereof.  During any such extension, all Shares previously tendered and not
purchased or withdrawn will remain subject to the Offer, except to the extent
that such Shares may be withdrawn as set forth in Section 3.  The Company also
expressly reserves the right, in its sole discretion, to terminate the Offer and
not accept for payment or pay for any Shares not theretofore accepted for
payment or paid for or, subject to applicable law, to postpone payment for
Shares upon the occurrence of any of the conditions specified in Section 6 or
otherwise by giving oral or written notice of such termination or postponement
to the Depositary and making a public announcement thereof.  The Company's
reservation of the right to delay payment for Shares which it has accepted for
payment is limited by Rule 13e-4(f)(5) promulgated under the Exchange Act, which
requires that the Company must pay the consideration offered or return the
Shares tendered promptly after termination or withdrawal of a tender offer. 
Subject to compliance with applicable law, the Company further reserves the
right, in its sole discretion, and regardless of whether or not any of the
events set forth in Section 6 shall have occurred or shall be deemed by the
Company to have occurred, to amend the Offer in any respect (including, without
limitation, by decreasing or increasing the consideration offered in the Offer
to owners of Shares or by decreasing the number of Shares being sought in the
Offer) or to waive the limitation on the maximum number of shares to be
purchased pursuant to the Offer.  Amendments to the Offer may be made at any
time or from time to time effected by public announcement thereof, such
announcement, in the case of an extension, to be issued no later than 9:00 a.m.,
New York City time, on the next business day after the previously scheduled
Expiration Date.  Any disclosure of a material change in the information
published, sent or given to stockholders will be disseminated promptly to
stockholders in a manner reasonably designed to inform stockholders of such
change.  Without limiting the manner in which the Company may choose to make a
public announcement pursuant to or concerning the Offer, except as required by
applicable law, the Company shall have no obligation to publish, advertise or
otherwise communicate any such public announcement other than by making a
release to the Dow Jones News Service.

     If the Company makes a material change in the terms of the Offer or the
information concerning the Offer or waives a material condition of the Offer,
the Company will disseminate additional tender offer materials and extend the
Offer to the extent required by Rules 13e-4(d)(2) and 13e-4(e)(2) promulgated
under the Exchange Act.  The minimum period during which an offer must remain
open following material changes in the terms of the offer or information
concerning the offer (other than a change in price or a change in percentage of
securities sought) will depend on the facts and circumstances then existing,
including the relative materiality of the changed terms or information.  If (a)
the Company (i) increases or decreases the price at which Shares may be properly
tendered or (ii) decreases the number of Shares being sought, and (b) the Offer
is scheduled to expire at any time earlier than the expiration of a period
ending on the tenth 

                                       30







<PAGE>






business day from and including the date that notice of such increase or
decrease is first published, sent or given, the Offer will be extended until the
expiration of such ten-business-day period.

15.  FEES AND EXPENSES

     The Company has retained Bear Stearns as its financial advisor in
connection with the Offer.  Bear Stearns will receive a fee of $400,000 for its
services as financial advisor.  The Company will also reimburse Bear Stearns for
its reasonable out-of-pocket expenses relating to the Offer.  The Company has
agreed to indemnify Bear Stearns against certain liabilities in connection with
the Offer, including certain liabilities under the federal securities laws.  The
Company paid to Bear Stearns a fee of $125,000 for its services as financial
advisor with respect to the Prior Proposal.

     The Company has retained Morrow & Co., Inc. as Information Agent and
Chemical Mellon Shareholder Services, L.L.C. as Depositary in connection with
the Offer.  The Information Agent and the Depositary will each receive
reasonable and customary compensation for customary services in connection with
the Offer and will be reimbursed for customary and reasonable out-of-pocket
expenses.   The Company has agreed to indemnify the Information Agent and the
Depositary against certain liabilities in connection with the Offer, including
certain liabilities under the federal securities laws.  Neither the Information
Agent nor the Depositary has been retained to, or is authorized to, make
solicitations or recommendations in connection with the Offer.

     The Company will not pay any fees or commissions to any broker, dealer,
commercial bank, trust company or other person for soliciting Shares pursuant to
the Offer.  The Company will, however, on request, reimburse such persons for
customary handling and mailing expenses incurred in forwarding materials in
respect of the Offer to the beneficial owners for which they act as nominees. 
No broker, dealer, commercial bank or trust company has been authorized to act
as an agent for the Company for the purpose of the Offer.  The Company will not
pay (or cause to be paid) any stock transfer taxes on its purchase of Shares
pursuant to the Offer, except as otherwise provided in Instruction 6 of the
Letter of Transmittal.

          Estimated costs and fees in connection with the Offer, all of which
are the obligation of the Company, are as follows:

 Solicitation fees and expenses  . . . . .            $   25,000
 Financial advisory fees . . . . . . . . .               400,000
 Filing fees . . . . . . . . . . . . . . .                 2,000
 Legal, accounting, and other professional               200,000
 fees  . . . . . . . . . . . . . . . . . .
 Printing and distribution costs . . . . .                20,000
 Miscellaneous . . . . . . . . . . . . . .                 8,000
                                                        --------
           Total . . . . . . . . . . . . .             $ 655,000
                                                         =======






                                       31







<PAGE>







     The above amounts are estimates only and actual expenditures may vary
substantially from the estimates depending on the circumstances.

16.  MISCELLANEOUS

     The Offer is not being made to, nor will the Company accept tenders from or
on behalf of, holders of Shares in any jurisdiction in which the making of the
Offer or its acceptance would not be in compliance with the laws of such
jurisdiction.  The Company is not aware of any jurisdiction where the making of
the Offer or the tender of Shares would not be in compliance with applicable
law.  If the Company becomes aware of any jurisdiction where the making of the
Offer or the tender of Shares is not in compliance with any applicable law, the
Company will make a good faith effort to comply with such law.  If, after such
good-faith effort, the Company cannot comply with such law, the Offer will not
be made to (nor will tenders be accepted from or on behalf of) the holders of
Shares residing in such jurisdiction.  In any jurisdiction in which the
securities, blue sky or other laws require the Offer to be made by a licensed
broker or dealer, the Offer will be deemed to be made on the Company's behalf by
one or more registered brokers or dealers licensed under the laws of such
jurisdiction.


                              HORSEHEAD RESOURCE DEVELOPMENT
                                COMPANY, INC.


May 16, 1996


























                                       32







<PAGE>






                                                SCHEDULE I

                             DIRECTORS AND EXECUTIVE OFFICERS OF THE COMPANY

     The following  table sets  forth the  name, age,  business address  and
current  and past  principal occupation  or employment  of the  directors and 
executive officers  of the  Company.   Unless otherwise indicated, each
individual listed below is a citizen of the United States.
<TABLE><CAPTION>

      Name and Age           Business Address                  Employment
      ------------           ----------------                  ----------

<S>                      <C>                        <C> 
 William E. Flaherty,    Horsehead Resource         Chairman  of  the  Board  of the
 63                       Development Company,      Company since  its inception  in
 Chairman of the Board    Inc.                      1986.  Chairman of the Board and
                         110 East 59th Street       Chief Executive  Officer of  HII
                         New York, NY 10022         since 1989.  President and Chief
                                                    Executive Officer  of  HII  from
                                                    1981 to 1989.

 David O. Carpenter, 58  ITTG, LLP                  Director since 1986.   President
 Director                329 Riverside Avenue       and Chief  Executive Officer  of
                         Westport, CT  06880        the Company  from its  inception
                                                    in  1986  until  February  1990.
                                                    President  of HII  from  1989 to
                                                    1994.   Vice  President  of  HII
                                                    from 1981  to 1983;  Senior Vice
                                                    President  from  1983  to  1987;
                                                    Executive  Vice  President  from
                                                    1987 to 1989.  Director of HII.

 James H. Dowling, 64    Burson-Marsteller          Chairman Emeritus and consultant
 Director                601 Brickell Key Drive     to Burson-Marsteller since 1994.
                         Suite 900                  Chairman of the Board of Burson-
                         Miami, FL  33131           Marsteller from  1992  to  1994,
                                                    Chief   Executive   Officer   of
                                                    Burson-Marsteller  from  1988 to
                                                    1992.

 David N. Judelson, 67   375 Park Avenue            Director  since   1986.     Vice
 Director                Suite 2507                 Chairman of HII since 1989.  Co-
                         New York, NY  10152        founder  of   Gulf   &   Western
                                                    Industries,  Inc.  in  1956  and
                                                    member of its Board of Directors
                                                    from 1959 to 1983; President and
                                                    Chief  Operating  Officer   from
                                                    1967 through 1983.   Director of
                                                    HII.

 Rolf Kola, 54*          B.U.S Berzelius Umwelt-    Member of the Executive Board of
 Director                 Service AG                B.U.S  Berzelius  Umwelt-Service
                         Dag-Hamarskjold - Weg 3    AG since 1990; Managing Director
                         D-65760 Eschborn, Germany  of "Berzelius" Metallhutten GmbH
                                                    from 1989 to 1991.
</TABLE>

<PAGE>





<TABLE><CAPTION>

      Name and Age           Business Address                  Employment
      ------------           ----------------                  ----------
<S>                      <C>                       <C>
 Gunter Okon, 52*        B.U.S Berzelius Umwelt-    Member of the Executive Board of
 Director                 Service AG                B.U.S  Berzelius  Umwelt-Umwelt-
                         Dag-Hamarskjold - Weg 3    Service AG since  1994; Managing
                         D-65760 Eschborn, Germany  Director of  Sachtelben  Chernie
                                                    GmbH from 1991 to 1994.

 Tinkham Veale II, 81    1700 Epping Road           Director since 1986, Chairman of
 Director                Gates Mills, OH  44040     the  Board of  HII from  1981 to
                                                    1989 and Chairman Emeritus since
                                                    1989.  Founder of Alco  Standard
                                                    Corporation,  Chairman   of  the
                                                    Board until  1986  and  Chairman
                                                    Emeritus since  1986.   Director
                                                    of HII.

 Mark G. Solow, 47       GarMark Advisors, LLC      Director since 1995.  Founder of
 Director                1285 Avenue of the         and Partner in  GarMark Advisors
                              Americas              L.L.C.  since   1995.     Senior
                         New York, New York  10019  Executive   Vice   President  in
                                                    charge  of   the   Banking   and
                                                    Corporate   Finance   Group   of
                                                    Chemical   Banking   Corporation
                                                    from 1992 through 1994.  Co-head
                                                    of  Manufacturers  Hanover Trust
                                                    Global Banking Group, 1990-1991.

 William M. Quirk, 39    Horsehead Resource         President  and  Chief  Executive
 President and Chief       Development Company,     Officer  of  the  Company  since
 Executive Officer         Inc.                     1994.  President of the  Company
                         110 East 59th Street       since   1993.      Senior   Vice
                         New York, NY 10022         President  of HII  from 1988  to
                                                    1991     and     since     1992.
                                                    Independent Consultant from 1991
                                                    to 1992.  Vice  President of HII
                                                    from 1987 to 1988.

 William A. Smelas, 58   Horsehead Resource         Executive Vice President  of the
 Executive Vice            Development Company,     Company since  1989  and  Senior
 President                 Inc.                     Vice President,  Operations from
                         110 East 59th Street       1986 to  1989.   Executive  Vice
                         New York, NY 10022         President of ZCA since 1994.

 Peter W. Nelson, 36     Horsehead Resource         Senior  Vice  President  of  the
 Senior Vice President     Development Company,     Company  since   1993.      Vice
                           Inc.                     President  of  HII  since  1989.
                         110 East 59th Street       Manager of  Business Development
                         New York, NY 10022         of HII from 1987 to 1989.









                                                2




<PAGE>



</TABLE>
<TABLE><CAPTION>

      Name and Age           Business Address                  Employment
      ------------           ----------------                  ----------
<S>                      <C>                        <C> 
 Robert P. Marshall, 55  Horsehead Resource         Vice President, General  Counsel
 Vice President,           Development Company,     and  Secretary  of  the  Company
 General Counsel &       Inc.                       since 1994.  Vice President  and
 Secretary               110 East 59th Street       General  Counsel  of  HII  since
                         New York, NY 10022         1994.     Vice   President   and
                                                    Environmental  Counsel  of   HII
                                                    from  1992   to  1994.      Vice
                                                    President, General  Counsel  and
                                                    Secretary of  the  Company  from
                                                    1986 to 1992.

 Richard Krablin, 51     Horsehead Resource         Vice President, Environmental of
 Vice President,           Development Company,     the    Company    since    1995.
 Environmental           Inc.                       Consultant   with  Environmental
                         110 East 59th Street       Management,      Science     and
                         New York, NY 10022         Strategic Services, Los Angeles,
                                                    CA,  1995.    Various  positions
                                                    with Atlantic Richfield Company,
                                                    Los Angeles, CA, 1979-1994.
</TABLE>

______________________
*Denotes a citizen of Germany, to the knowledge of the Company.











                                                    3




<PAGE>

                                    SCHEDULE II

                      DIRECTORS AND EXECUTIVE OFFICERS OF HII

 The following  table  sets  forth  the name,  age,  business  address and 
current  and  past  principal occupation or  employment of the directors  and
executive officers  of HII.  Unless  otherwise indicated, each individual listed
below is a citizen of the United States.

       Name and Age         Business Address          Employment
       ------------         ----------------          ----------

 William E. Flaherty, 63  Horsehead           Chairman of the Board  and
 Chairman and              Industries, Inc.   Chief  Executive   Officer
 Chief Executive Officer  110 East 59th       of    HII    since   1989.
                           Street             President    and     Chief
                          New York, NY 10022  Executive  Officer  of HII
                                              from    1981    to   1989.
                                              Chairman  of the  Board of
                                              the   Company   since  its
                                              inception in 1986.

 David O. Carpenter, 58   ITTG, LLP           Director      of      HII.
 Director                 329 Riverside       President   of  HII   from
                           Avenue             1989   to   1994.     Vice
                          Westport, CT        President   of  HII   from
                           06880              1981 to 1983; Senior  Vice
                                              President  from   1983  to
                                              1987;    Executive    Vice
                                              President  from   1987  to
                                              1989.    Director  of  the
                                              Company    since     1986.
                                              President    and     Chief
                                              Executive  Officer of  the
                                              Company      from      its
                                              inception  in  1986  until
                                              February 1990.  

 David N. Judelson, 67    375 Park Avenue     Director  of  HII.    Vice
 Director                 Suite 2507          Chairman   of  HII   since
                          New York, NY        1989.  Co-founder of  Gulf
                           10152              &   Western    Industries,
                                              Inc.  in  1956 and  member
                                              of its Board of  Directors
                                              from    1959   to    1983;
                                              President    and     Chief
                                              Operating   Officer   from
                                              1967     through     1983.
                                              Director  of  the  Company
                                              since 1986.

 Tinkham Veale II, 81     1700 Epping Road    Director      of      HII.
 Director                 Gates Mills, OH     Chairman  of the  Board of
                          44040               HII from 1981  to 1989 and
                                              Chairman  Emeritus   since
                                              1989.    Founder  of  Alco
                                              Standard      Corporation,
                                              Chairman   of   the  Board
                                              until  1986  and  Chairman
                                              Emeritus    since    1986.
                                              Director  of  the  Company
                                              since 1986.

 William M. Quirk, 39     Horsehead           Senior  Vice  President of
 Senior Vice President     Industries, Inc.   HII.        Senior    Vice
                          110 East 59th       President   of   HII  from
                           Street             1988  to  1991  and  since
                          New York, NY 10022  1992.   Vice  President of
                                              HII  from  1987  to  1988.
                                              President    and     Chief
                                              Executive  Officer  of the
                                              Company    since     1994.
                                              President  of  the Company
                                              since  1993.   Independent
                                              Consultant  from  1991  to
                                              1992. 




<PAGE>


       Name and Age         Business Address          Employment
       ------------         ----------------          ----------
                                              
 Peter W. Nelson, 36      Horsehead           Vice   President   of  HII
 Vice President            Industries, Inc.   since  1989.   Manager  of
                          110 East 59th       Business  Development   of
                           Street             HII  from  1987  to  1989.
                          New York, NY 10022  Senior  Vice  President of
                                              the Company since 1993.  

 Robert P. Marshall, 55   Horsehead           Vice     President     and
 Vice President and        Industries, Inc.   General  Counsel   of  HII
 General Counsel          110 East 59th       since    1994.        Vice
                           Street             P r e s i d e n t    a n d
                          New York, NY 10022  Environmental  Counsel  of
                                              HII  from  1992  to  1994.
                                              Vice  President,   General
                                              Counsel  and Secretary  of
                                              the  Company   since  1994
                                              and from 1986 to 1992. 

 Ronald J. Statile, 48    Horsehead           Vice   President  of   HII
 Vice President            Industries, Inc.   since 1988.
                          110 East 59th
                           Street
                          New York, NY 10022

 Neil R. Kurlander, 36    Horsehead           Vice     President     and
 Vice President and        Industries, Inc.   Assistant General  Counsel
 Assistant General        110 East 59th       of HII  since 1995.   Vice
 Counsel                   Street             President  and   Corporate
                          New York, NY        Counsel  of HII  from 1992
                          10022               to   1995.       Corporate
                                              Counsel  of HII  from 1990
                                              to 1992.

                                         2




<PAGE>






 Facsimile copies  of the  Letter of  Transmittal, properly  completed and  duly
executed, will be accepted.  The Letter  of Transmittal, certificates for Shares
and any other required documents should be sent or delivered by each stockholder
of the  Company or  such stockholder's  broker, dealer,  commercial bank,  trust
company or other  nominee to the Depositary  at one of  its addresses set  forth
below.
                        The Depositary for the Offer is:

                  Chemical Mellon Shareholder Services, L.L.C.


           By Mail:                                       By
                                                       Hand/Overnight Delivery:
           P.O. Box 817                                   120 Broadway
           Midtown Station                                13th Floor
           New York, NY 10018                             NewYork,NY10271


                                
                             By Facsimile Transmission:
                                (201) 296-4291 or 4293
                                Confirm by Telephone:
                                (201) 296-4983


             ______________________________________________________

Any questions or requests for assistance or  for additional copies of this Offer
to Purchase, the Letter of Transmittal or the Notice of Guaranteed Delivery may
be directed to the Information Agent at its address and the telephone numbers
set forth below.  Stockholders may also contact their broker, dealer, commercial
bank, trust company or other nominee for assistance concerning the Offer.  To
confirm delivery of your Shares, stockholders are directed to contact the
Depositary.

                     The Information Agent for the Offer is:

                               Morrow & Co., Inc.

                                909 Third Avenue
                            New York, New York 10022
                          (212) 754-8000 (Call Collect)
                                       or
                           1-800-662-5200 (Toll Free)






                                 EXHIBIT (D)(2)
                              LETTER OF TRANSMITTAL



<PAGE>
                              LETTER OF TRANSMITTAL
                       TO TENDER SHARES OF COMMON STOCK OF

                  HORSEHEAD RESOURCE DEVELOPMENT COMPANY, INC. 

                        Pursuant to the Offer to Purchase
                               Dated May 16, 1996

  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
                        TIME, ON FRIDAY, JUNE 14, 1996, 
                          UNLESS THE OFFER IS EXTENDED.

                        The Depositary for the Offer is:
                  Chemical Mellon Shareholder Services, L.L.C.

        By Mail:                                 By Hand/Overnight Delivery:
      P.O. Box 817                             120 Broadway, 13th Floor      
      Midtown Station                          New York, NY 10271            
      New York, NY 10018


                           By Facsimile Transmission:
                             (201) 296-4291 or 4293

                             Confirm by Telephone:
                                 (201) 296-4983
                         ______________________________

     DELIVERY OF THIS INSTRUMENT  TO AN ADDRESS OTHER THAN THOSE  SHOWN ABOVE OR
TRANSMISSION OF  INSTRUCTIONS TO A  FACSIMILE NUMBER OTHER  THAN THE ONE  LISTED
ABOVE DOES NOT CONSTITUTE A VALID DELIVERY.

     This Letter  of Transmittal  is to  be used  only if  (a) certificates  for
Shares (as defined  below) are to be  delivered with it or (b)  Shares are being
delivered by book-entry transfer to the account maintained by the Depositary  at
The  Depository  Trust Company  ("DTC")  or  the Philadelphia  Depository  Trust
Company ("PDTC")  (collectively, the  "Book-Entry Transfer  Facilities") as  set
forth in Section 2 of the Offer to Purchase (as defined below).

     Stockholders whose stock certificates are not immediately available (or who
cannot follow the  procedure for book-entry transfer  on a timely basis)  or who
cannot transmit this Letter of Transmittal  and all other required documents  to
the Depositary before the Expiration Date (as  defined in Section 1 of the Offer
to Purchase) may nevertheless  tender their Shares  according to the  guaranteed
delivery procedure  set  forth in  Section  2 of  the Offer  to  Purchase.   See
Instruction 2.

     Delivery of this Letter  of Transmittal and the other required documents to
one of  the Book-Entry Transfer Facilities  does not constitute delivery  to the
Depositary.




<PAGE>


[ ]   CHECK HERE IF TENDERED SHARES ARE BEING DELIVERED BY BOOK-ENTRY TRANSFER
      TO AN ACCOUNT MAINTAINED BY THE DEPOSITARY AT ONE OF THE BOOK-ENTRY
      FACILITIES AND COMPLETE THE FOLLOWING:  

      Name of Tendering Institution:                                           
                                       ----------------------------------------

      Check Box of Applicable Book-Entry Transfer Facility:

      [ ]  The Depository Trust Company
       
      [ ]  Philadelphia Depository Trust Company 
       


 Account                            Transaction Code
 Number:                            Number:                                    
        -----------------------            ------------------------------------






[ ]   CHECK HERE IF CERTIFICATES FOR TENDERED SHARES ARE BEING DELIVERED
  
      PURSUANT TO A NOTICE OF GUARANTEED DELIVERY PREVIOUSLY SENT TO THE
      DEPOSITARY AND COMPLETE THE FOLLOWING:

      Name(s) of Tendering Stockholder(s):                                     
                                          ------------------------------------

      Date of Execution of Notice of Guaranteed Delivery:                      
                                                         ---------------------

      Name of Institution which Guaranteed Delivery:                           
                                                    --------------------------

      Check Box of Applicable Book-Entry Transfer Facility and Give Account
      Number if Delivered by Book-Entry Transfer:

      [ ]  The Depository Trust Company
       
      [ ]  Philadelphia Depository Trust Company 
       


 Account                            Transaction Code
 Number:                            Number:                                    
        -----------------------            ------------------------------------


                                      2

<PAGE>


                         DESCRIPTION OF SHARES TENDERED
                           (SEE INSTRUCTIONS 3 AND 4)


 NAMES(S) AND ADDRESSES(ES) OF
  REGISTERED HOLDER(S) (PLEASE
   FILL IN EXACTLY AS NAME(S)                   SHARES TENDERED
  APPEAR(S) ON CERTIFICATE(S))      (ATTACH ADDITIONAL LIST, IF NECESSARY)

                                                      NUMBER OF
                                                        SHARES       NUMBER OF
                                   CERTIFICATE      REPRESENTED BY    SHARES
                                    NUMBER(S)*     CERTIFICATE(S)*  TENDERED**




                                TOTAL SHARES:


 *    Need not be completed if Shares are delivered by book-entry transfer.
 **   Unless otherwise indicated, it will be assumed that all Shares
      represented by any certificates delivered to the Depositary are being
      tendered.  See Instruction 4.

                                      3





<PAGE>


                     NOTE: SIGNATURES MUST BE PROVIDED BELOW
               PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY


Ladies and Gentlemen:

     The undersigned hereby  tenders to Horsehead Resource  Development Company,
Inc., a  Delaware corporation  (the  "Company"), the  above-described shares  of
common stock, par value $.01 per  share ("Shares"), of the Company , at  a price
of $5.75 per Share  (the "Purchase Price"), net to the seller  in cash, upon the
terms and subject to the conditions set forth in the Offer to Purchase dated May
16, 1996 (the "Offer to Purchase"), receipt of which is hereby acknowledged, and
in this Letter of Transmittal dated May 16, 1996 (which together  constitute the
"Offer").

     Subject to and effective upon acceptance for payment of the Shares tendered
herewith in accordance with  the terms of the Offer (including,  if the Offer is
extended  or  amended,  the  terms  or  conditions  of  any  such  extension  or
amendment), the undersigned  hereby sells, assigns and transfers to  or upon the
order of  the Company  all right, title  and interest in  and to all  the Shares
tendered hereby,  or orders the  registration of such Shares  delivered by book-
entry transfer, that are purchased pursuant to the Offer and hereby  irrevocably
constitutes and  appoints the  depositary for the  Offer (the  "Depositary") the
true and lawful agent  and attorney-in-fact of the  undersigned with respect  to
such  Shares, with  full power  of substitution  (such power  of attorney  being
deemed to be an irrevocable power coupled with an interest), to:

          (a)  deliver  certificates for such  Shares, or transfer  ownership of
               such Shares on the account books  maintained by any of the  Book-
               Entry  Transfer Facilities, together, in any  such case, with all
               accompanying  evidence of transfer  and authenticity, to  or upon
               the order of the Company, upon receipt by the  Depositary, as the
               undersigned's agent, of  the Purchase Price with  respect to such
               Shares;

          (b)  present  certificates   for  such  Shares  for  cancellation  and
               transfer of such Shares on the Company's books; and 

          (c)  receive  all  benefits  and  otherwise  exercise  all  rights  of
               beneficial ownership of  such Shares, all in accordance  with the
               terms of the Offer. 

     The undersigned hereby represents and warrants that:

          (a)  The undersigned has full  power and authority to validly  tender,
               sell, assign and transfer the Shares tendered hereby;

          (b)  when  and  to the  extent  the  Company  accepts the  Shares  for
               purchase,  the  Company   will  acquire   good,  marketable   and
               unencumbered  title thereto,  free  and  clear  of  all  security
               interests,  liens,   charges,  encumbrances,   conditional  sales
               agreements  or  other  obligations  relating  to  their  sale  or
               transfer, and not subject to any adverse claim;

          (c)  on   request,  the  undersigned  will  execute  and  deliver  any
               additional  documents  the   Depositary  or  the  Company   deems
               necessary or desirable  to complete the assignment,  transfer and
               purchase of the Shares tendered hereby; and



                                       4





<PAGE>


          (d)  the  undersigned has  read and  agrees to  all the  terms  of the
               Offer.

     The  undersigned  understands that  all  Shares properly  tendered  and not
withdrawn will be purchased  at $5.75 per Share (or such other price that may be
set forth  in an amendment to  the Offer), net to  the seller in cash,  upon the
terms and subject  to the  conditions of the  Offer, and  that the Company  will
return all other Shares.

     The undersigned understands  that tenders of Shares pursuant  to any one of
the  procedures described  in Section  2 of  the Offer  to Purchase  and in  the
instructions  hereto will constitute a binding agreement between the undersigned
and the Company upon the terms and subject to the conditions of the Offer.

     The undersigned recognizes that, under  certain circumstances set forth  in
the Offer to Purchase,  the Company may terminate or amend the  Offer or may not
be required to  accept for payment  any of the  Shares tendered herewith or  may
accept for payment fewer than all the Shares tendered herewith.

     All  authority conferred  or  agreed to  be  conferred  in this  Letter  of
Transmittal shall survive the  death or incapacity  of the undersigned, and  any
obligation  of  the undersigned  hereunder  shall  be  binding upon  the  heirs,
personal representatives, successors and assigns  of the undersigned.  Except as
stated in the Offer to Purchase, this tender is irrevocable.

     Unless otherwise  indicated under  "Special  Payment Instructions,"  please
issue  the   check  for  the   Purchase  Price  and/or   return  or  issue   the
certificates(s) evidencing any  Shares not tendered or not  accepted for payment
in the  names(s) of  the registered holders(s)  appearing under  "Description of
Shares Tendered."      Similarly,  unless  otherwise  indicated  under  "Special
Delivery Instructions", please mail the check for the Purchase  Price and/or the
certificates(s) evidencing any  Shares not tendered or not  accepted for payment
(and  accompanying  documents,  as  appropriate)  to  the   address(es)  of  the
registered holder(s) appearing  under "Description of Shares Tendered."   In the
event that  both the  "Special Delivery Instructions"  and the  "Special Payment
Instructions"  are completed,  please issue  the  check for  the Purchase  Price
and/or issue or return the certificate(s) evidencing any Shares not  tendered or
accepted  for  payment  in  the  name(s)  of,  and  deliver  said  check  and/or
certificate(s) to,  the person or persons  so indicated.   In the case  of book-
entry delivery of Shares, please credit the account maintained at the Book-Entry
Transfer Facility indicated above with any Shares not accepted for payment.  The
undersigned  recognizes that  the  Company  has no  obligation  pursuant to  the
"Special Payment Instructions" to  transfer any Shares  from the name(s) of  the
registered holder(s) thereof if the Company  does not accept for payment any  of
the Shares so tendered.


                                        5





<PAGE>

               PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY


                  SPECIAL DELIVERY INSTRUCTIONS 
               (SEE INSTRUCTIONS 1, 4, 5, 6 AND 8)

      To be completed  ONLY if the check  for the Purchase Price
 of Shares purchased and/or certificates for Shares not tendered
 or not purchased are  to be  mailed to someone  other than  the
 undersigned or to the undersigned at an address other than that
 shown below the undersigned's signature.

 Mail  [ ] check and/or       [ ] certificates to:

 Name:                                                          
       ---------------------------------------------------------
                          (Please Print)

 Address:                                                       
          ------------------------------------------------------
                                                                
 ---------------------------------------------------------------
                                                                
 ---------------------------------------------------------------
                                                                
 ---------------------------------------------------------------
                                                                
 ---------------------------------------------------------------
                                                    (Zip Code)  


                       SPECIAL PAYMENT INSTRUCTIONS
                  (SEE INSTRUCTIONS 1, 4, 5, 6, 7 AND 8)

      To be completed ONLY if the check for the Purchase Price of Shares
 purchased and/or certificates for Shares not tendered or not purchased
 are to be issued in the name of someone other than the undersigned.

 Issue any  [ ] check and/or           [ ]  certificates to:


 Name:                                                                   
      ----------------------------------------------------------
                              (PLEASE PRINT)

 Address:                                                                
         -------------------------------------------------------
                                                                         
 ---------------------------------------------------------------
                                                                         
 ---------------------------------------------------------------
                                                                         
 ---------------------------------------------------------------
                                                      (Zip Code)  

                                                                         
 ---------------------------------------------------------------
                   (TAXPAYER IDENTIFICATION NUMBER)


                                        6


<PAGE>


                            SIGN HERE
                    (SEE INSTRUCTIONS 1 AND 5)
           (PLEASE COMPLETE SUBSTITUTE FORM W-9 BELOW)

                                                                
 ---------------------------------------------------------------

                                                                
 ---------------------------------------------------------------
                     SIGNATURE(S) OF OWNER(S)

 Name(s)                                                        
        --------------------------------------------------------
                          (PLEASE PRINT)

                                                                
 ---------------------------------------------------------------

 Capacity (full title)                                          
                       -----------------------------------------


 Address                                                        
         -------------------------------------------------------

                                                                
 ---------------------------------------------------------------

                                                                
 ---------------------------------------------------------------
                        (INCLUDE ZIP CODE)


 Area Code and Telephone Number                                 
                                --------------------------------

 Taxpayer Identification Number                                 
                                --------------------------------
                                    (SEE INSTRUCTION 10)

 Dated:              , 1996

 (Must be signed by registered holder(s) exactly as name(s)
 appear(s) on stock certificates(s) or on a security position
 listing or by person(s) authorized to become registered
 holder(s) by certificates and documents transmitted herewith. 
 If signature is by a trustee, executor, administrator,
 guardian, attorney-in-fact, agent, officer of a corporation or
 other person acting in a fiduciary or representative capacity,
 please set forth full title.  See Instruction 5.)


                    GUARANTEE OF SIGNATURE(S)
                    (SEE INSTRUCTIONS 1 AND 5)

 Authorized Signature                                           
                     -------------------------------------------


 Name                                                           
     -----------------------------------------------------------
                          (PLEASE PRINT)

 Title                                                          
       ---------------------------------------------------------

 Name of Firm                                                   
             ---------------------------------------------------


 Address                                                        
         -------------------------------------------------------
                        (INCLUDE ZIP CODE)

 Area Code and Telephone No.                                    
                             -----------------------------------

 Dated:                            , 1996



                                        7





<PAGE>



                                  INSTRUCTIONS

              FORMING PART OF THE TERMS AND CONDITIONS OF THE OFFER


     1.   GUARANTEE OF  SIGNATURES.   Except  as otherwise  provided below,  all
signatures on  this Letter  of Transmittal  must be  guaranteed  by a  financial
institution (including most banks, savings and loan associations, and  brokerage
houses)  that is  a  participant  in the  Securities  Transfer Agents  Medallion
Program, the  New York Stock  Exchange Medallion Signature Program  or the Stock
Exchange Medallion Program (each such entity being hereinafter referred to as an
"Eligible Institution").  Signatures on  this Letter of Transmittal need  not be
guaranteed if  (a) this Letter of Transmittal is  signed by the registered owner
of the Shares  (which term,  for purposes  of this document,  shall include  any
participant in one of the Book-Entry Transfer Facilities whose name appears on a
security position listing  as the owner  of Shares) tendered  herewith and  such
owner  has  not  completed  either   of  the  boxes  entitled  "Special  Payment
Instructions" or "Special Delivery  Instructions" on this Letter of  Transmittal
or (b) such Shares are tendered for the account of an Eligible Institution.  See
Instruction 5.

     2.   DELIVERY  OF LETTER  OF  TRANSMITTAL AND  SHARES; GUARANTEED  DELIVERY
PROCEDURES.  This Letter of Transmittal is  to be used only if (a)  certificates
are to be forwarded with it to the Depositary or (b) delivery of Shares is to be
made by book-entry transfer pursuant to the  procedure set forth in Section 2 of
the Offer to Purchase.   Certificates for all physically delivered  Shares, or a
confirmation  of a  book-entry transfer  of all Shares  delivered electronically
into  the Depositary's  account at  one of  the Book-Entry  Transfer Facilities,
together in each  case with  a properly  completed and duly  executed Letter  of
Transmittal (or  a facsimile thereof),  with any required  signature guarantees,
and any other documents required by this Letter of Transmittal, must be received
by the  Depositary at one of its  addresses set forth on the  front page of this
Letter of Transmittal before the Expiration Date (as defined in Section 1 of the
Offer  to Purchase).   Delivery of documents  to one of  the Book-Entry Transfer
Facilities does not constitute delivery to the Depositary.

     Stockholders  whose  certificates  are not  immediately  available  (or who
cannot follow the procedures  for book-entry transfer on a timely  basis) or who
cannot transmit this Letter  of Transmittal and all other  required documents to
reach the Depositary  before the Expiration Date, may  nevertheless tender their
Shares pursuant to the  guaranteed delivery procedure set forth in  Section 2 of
the Offer to  Purchase.  Pursuant to  such procedure:   (a) such tender must  be
made by or through an Eligible Institution, (b) the Depositary must  receive (by
hand, mail  or facsimile transmission),  before the Expiration Date,  a properly
completed and duly  executed Notice of Guaranteed Delivery  substantially in the
form  the  Company  has  provided  with  the  Offer  to  Purchase  and  (c)  the
certificates  for  all   tendered  Shares  in  proper  form   for  transfer  (or
confirmation of a book-entry transfer  of all such Shares into the  Depositary's
account at one of the Book-Entry Transfer Facilities), together with  a properly
completed and duly executed Letter of Transmittal (or facsimile thereof) and any
other documents required  by this Letter of Transmittal, must be received by the
Depositary within three  (3) Nasdaq National Market trading days  after the date
of execution of such Notice of Guaranteed Delivery, all as provided in Section 2
of the Offer to Purchase.

     The method of delivery of all documents, including stock certificates, this
Letter of Transmittal and any other  required documents, is at the election  and
risk of the tendering stockholder.  If delivery is by mail, registered mail with
return receipt requested, properly insured, is recommended.



                                        8





<PAGE>







     No alternative, conditional or contingent  tenders will be accepted, and no
fractional Shares  will be purchased.   By executing this Letter  of Transmittal
(or a facsimile thereof), each tendering stockholder waives any right to receive
any notice of the acceptance of such stockholder's tender.

     3.    INADEQUATE  SPACE.    If  the  space  provided  in  the  box entitled
"Description of  Shares Tendered" is inadequate, the  certificate numbers and/or
the number of Shares should be listed on a separate signed schedule and attached
to this Letter of Transmittal.

     4.    PARTIAL   TENDERS  AND  UNPURCHASED  SHARES.     (Not  applicable  to
stockholders who deliver Shares by book-entry transfer.)  If fewer than  all the
Shares  evidenced by  any  certificate delivered  to the  Depositary  are to  be
tendered, fill  in the  number of  Shares that  are to  be tendered  in the  box
entitled "Number  of Shares  Tendered."   If such  Shares are  purchased, a  new
certificate  for the remainder of the Shares evidenced by the old certificate(s)
will  be sent to and in the name  of the registered holders(s) (unless otherwise
specified  by such  holders(s) having  completed  either of  the boxes  entitled
"Special Delivery Instructions" or "Special Payment Instructions" in this Letter
of Transmittal) as  soon as practicable following the  expiration or termination
of the Offer.  All Shares represented by the certificate(s) listed and delivered
to  the  Depositary  will  be deemed  to  have  been  tendered unless  otherwise
indicated.

     5.  SIGNATURES ON LETTER OF TRANSMITTAL; STOCK POWERS; ENDORSEMENTS.

     (a) If this Letter of Transmittal is signed by the registered  holder(s) of
the Shares tendered herewith, the  signature(s) must correspond exactly with the
name(s)  and  written  on  the  face of  the  certificates  without  any  change
whatsoever.

     (b) If any of the  Shares tendered herewith are registered in  the names of
two or more joint owners, each such owner must sign this Letter of Transmittal.

     (c) If  any of  the Shares  tendered herewith  are registered  in different
names  on different certificates,  it will  be necessary  to complete,  sign and
submit  as  many  separate  Letters   of  Transmittal  as  there  are  different
registrations of certificates.

     (d) If this Letter of Transmittal is  signed by the registered holder(s) of
the Shares tendered herewith, no  endorsements of certificates or separate stock
powers are required unless payment is to be made and/or certificates  for Shares
not tendered  or not  purchased are  to be  issued to  a person  other than  the
registered holder(s).  If this Letter of Transmittal is signed by a person other
than  the registered  holder(s) of  the Shares  tendered herewith,  however, the
certificates must  be endorsed  or accompanied by  appropriate stock  powers, in
either case, signed exactly as the name(s) of the registered holder(s) appear on
the certificates for such Shares.  Signatures on any such certificates  or stock
powers must be guaranteed by an Eligible Institution.  See Instruction 1.

     (e) If  this Letter of Transmittal is, or  any certificates or stock powers
are, signed by  a trustee, executor, administrator,  guardian, attorney-in-fact,
agent,  officer of  a  corporation or  other  person acting  in  a fiduciary  or
representative capacity, such person should  so indicate when signing and proper
evidence satisfactory to the  Company of the authority of such  person so to act
must be submitted.


     6.  STOCK TRANSFER  TAXES.  The Company will  pay any stock transfer  taxes
with respect to the  transfer and sale of Shares to it or  its order pursuant to
the Offer.   If, however, payment  of the Purchase  Price is to  be made to,  or
certificates  for  Shares not  tendered  or  accepted  for  purchase are  to  be
registered 

                                       9





<PAGE>



in  the name of,  any person other  than the  registered holder, or  if tendered
certificates are registered in  the name of any person other  than the person(s)
signing  this Letter  of Transmittal,  the amount  of any  stock transfer  taxes
(whether imposed on the registered holder or such person) payable on  account of
the transfer to  such person  will be  deducted from the  Purchase Price  unless
evidence  satisfactory  to  the Company  of  the  payment of  such  taxes  or an
exemption therefrom is submitted.

     7.   IRREGULARITIES.    All questions  as  to the  number of  Shares  to be
accepted and  the validity,  form, eligibility (including  time of  receipt) and
acceptance  for  payment of  any  tender of  Shares  will be  determined  by the
Company, in  its sole discretion, which determination shall be final and binding
on all parties.   The Company reserves the absolute  right to reject any or  all
tenders determined by it not to be in  proper form or the acceptance for payment
of which may, in the opinion of the Company's counsel, be unlawful.  The Company
also reserves the  absolute right to  waive any of  the conditions of  the Offer
(except as  provided in Section 5  of the Offer  to Purchase) and any  defect or
irregularity  in   the  tender  of   any  particular  Shares.     The  Company's
interpretation  of  the terms  and  conditions  of  the Offer  (including  these
instructions) shall be final  and binding on all  parties.  No tender  of Shares
will be deemed properly made until all defects or irregularities have been cured
or  waived.  None of  the Company, the Depositary,  the Information Agent or any
other  person  is  or  will  be  obligated to  give  notice  of  any  defects or
irregularities in tenders, and none of them will incur any liability for failure
to give any such notice.

     8.   SPECIAL  PAYMENT AND  DELIVERY INSTRUCTIONS.   If  the  check for  the
Purchase Price of  any Shares purchased is  to be issued  to, or any Shares  not
tendered or not purchased are to be returned in the name of, a person other than
the  person(s)  signing  this Letter  of  Transmittal  or if  the  check  or any
certificates  for Shares  not tendered  or  not purchased  are to  be  mailed to
someone other than  the person(s) signing this  Letter of Transmittal or  to the
person(s) signing this Letter of Transmittal at an address other than that shown
in  the box  entitled  "Descriptions  of Shares  Tendered,"  the boxes  entitled
"Special  Payment Instructions" and/or  "Special Delivery Instructions"  on this
Letter of Transmittal should be completed.

     9.   REQUEST FOR ASSISTANCE OR ADDITIONAL  COPIES.  Requests for assistance
may be  directed to the Information Agent at one  of its addresses and telephone
numbers set  forth below  and requests  for additional  copies of  the Offer  to
Purchase, this Letter  of Transmittal and the Notice of  Guaranteed Delivery may
be directed to the Information Agent.

     10.  SUBSTITUTE  FORM W-9.  Except  as provided above under  "Important Tax
Information," each tendering stockholder  is required to provide the  Depositary
with a correct  taxpayer identification number, i.e., social  security number or
employer identification number ("TIN"), on Substitute Form W-9 which is provided
under "Important Tax Information" below.  Failure to  provide the information on
the form  may subject  the tendering stockholder  to a  penalty and  31% federal
backup  withholding  tax  imposed on  the  gross  proceeds to  be  paid  to such
stockholder  or other  payee with  respect to  Shares purchased pursuant  to the
Offer.

     11.   FOREIGN  STOCKHOLDER WITHHOLDING.   Foreign stockholders  should note
that  the   31%  U.S.   withholding  tax   generally  applicable   to  corporate
distributions will apply to the  proceeds payable pursuant to the  Offer, unless
either  a reduced rate of withholding is applicable  pursuant to a tax treaty or
an  exemption from  withholding is  applicable because  such gross  proceeds are
effectively connected with  the conduct of  a trade or  business by the  foreign
stockholder within the United States.

     Facsimile copies of this Letter of Transmittal, properly completed and duly
executed, will be accepted.  This Letter of Transmittal, certificates for Shares
and any other required documents should be sent 



                                       10





<PAGE>



or delivered  by each stockholder of  the Company or  such stockholder's broker,
dealer, commercial bank, trust company or other nominee to the Depositary at one
of its addresses set forth above.

                            IMPORTANT TAX INFORMATION

     Under current  U.S. federal  income tax law,  a stockholder  whose tendered
Shares are accepted  for payment is  required by law  to provide the  Depositary
with  such stockholder's correct TIN  on the Substitute Form  W-9 below.  If the
Depositary is  not provided with  the correct TIN, the  Internal Revenue Service
may subject  the stockholder or other payee to a penalty.  In addition, payments
that  are made  to  such stockholders  or  other payee  with  respect to  Shares
purchased  pursuant to the  Offer may be  subject to 31%  backup withholding for
federal income tax purposes.

     Certain stockholders (including, among others, all corporations and certain
foreign individuals) are  not subject to these backup  withholding and reporting
requirements and  should indicate  their status by  writing "exempt"  across the
face of,  and by signing and  dating, the Substitute Form  W-9.  In order  for a
non-corporate  foreign  stockholder  to qualify  as  an  exempt recipient,  such
stockholder must submit a Form W-8, Certificate of Foreign  Status, signed under
penalties of perjury, attesting to that stockholder's exempt status.  A Form W-8
can  be obtained  from  the  Depositary.    See  the  enclosed  "Guidelines  for
Certification of Taxpayer Identification Number on Substitute Form W-9" for more
instructions.

     If backup withholding  applies, the Depositary is required  to withhold 31%
of  such  payments  to  be made  to  the  stockholder or  other  payee.   Backup
withholding is not an additional tax.   Rather, the federal income tax liability
of persons subject  to backup withholding will  be reduced by the  amount of tax
withheld.   If withholding results in an  overpayment of taxes, a  refund may be
obtained from the Internal Revenue Service.

PURPOSE OF SUBSTITUTE FORM W-9

     To  prevent backup  federal  income  tax  withholding  in  connection  with
payments that  are made with respect  to Shares tendered in the  Offer, you must
provide the  Depositary with your correct TIN  by completing the Substitute Form
W-9 below, certifying  that the TIN provided  on Substitute Form W-9  is correct
and  that either (A) you have not  been notified by the Internal Revenue Service
that you are subject  to backup withholding or (B) the  Internal Revenue Service
has notified you that you are no longer subject to backup withholding.

     If  you have  not been issued  a TIN  and have applied  for one,  or if you
intend  to apply for one in the near future,  check the box in Part III and sign
and date both the Substitute Form W-9 and the "Certificate of  Taxpayer Awaiting
Identification Number."  You then have generally 60 days within which to provide
the  Depositary with your TIN and a new Substitute  Form W-9.  If you fail to do
so, the Depositary will withhold 31% from any payments and distributions made to
you thereafter until a TIN and new Substitute Form W-9 are provided.

WHAT NUMBER TO GIVE THE DEPOSITARY

     The stockholder is  required to give the  Depositary the TIN of  the record
owner of  the  Shares or  of  the last  transferee  appearing on  the  transfers
attached to, or  endorsed on, the  certificates evidencing the  Shares.  If  the
Shares are registered in more than one name or are not registered in the name of
the actual owner, consult the enclosed "Guidelines for Certification of Taxpayer
Identification Number on  Substitute Form W-9" for additional  guidance on which
number to report.



                                       11





<PAGE>



 PAYER'S NAME:   CHEMICAL MELLON SHAREHOLDER SERVICES, L.L.C.

   SUBSTITUTE                PART I - PLEASE      ----------------------
   FORM W-9                  PROVIDE YOUR TIN IN  Social Security Number
                             THE BOX AT RIGHT AND           OR
   DEPARTMENT OF THE         CERTIFY BY SIGNING
   TREASURY INTERNAL         AND DATING BELOW.
   REVENUE SERVICE                                ----------------------
                                                           Employer
                                                    Identification Number

                             --------------------------------------------
   PAYER'S REQUEST FOR       PART II
   TAXPAYER IDENTIFICATION   CERTIFICATION -- Under penalties of
   NUMBER (TIN)              perjury, I certify that:
                             (1)       The number shown  on this form is
                                       my        current        taxpayer
                                       identification  number (or  I  am
                                       waiting for a number to be issued
                                       to me) and
                             (2)       I   am  not  subject   to  backup
                                       withholding under  the provisions
                                       of  Section 3486(a)(1)(c)  of the
                                       Internal Revenue Code because (i)
                                       I have  not been  notified by the
                                       Internal  Revenue   Service  (the
                                       "IRS")  that  I  am   subject  to
                                       backup withholding as a result of
                                       failure to report all interest or
                                       dividends,  or (ii)  the IRS  has
                                       notified me  that I  am no longer
                                       subject to backup withholding.
                             --------------------------------------------
                             PART III
                             Awaiting TIN 
                                          --------------------
                             --------------------------------------------

                                       CERTIFICATE INSTRUCTIONS -- You must
                                       cross out item (2) in Part II above
                                       if you have been notified by the IRS that
                                       you are subject to backup withholding
                                       because of underreporting interest or
                                       dividends on your tax return.  However, 
                                       if after being notified by the IRS that 
                                       you are subject to backup withholding you
                                       received another notification from the 
                                       IRS that you are no longer subject to 
                                       backup withholding, do not cross out 
                                       item (2).
                                       ------------------------------------
   SIGNATURE:                                        DATE:
- ---------------------------------------------------------------------------

   NOTE:  FAILURE  TO COMPLETE  AND  RETURN  THIS
   FORM MAY RESULT  IN BACKUP WITHHOLDING  OF 31%
   OF ANY  PAYMENT MADE  TO YOU  PURSUANT TO  THE
   OFFER.  PLEASE REVIEW  THE ENCLOSED GUIDELINES
   FOR CERTIFICATION  OF TAXPAYER  IDENTIFICATION
   NUMBER ON SUBSTITUTE  FORM W-9 FOR  ADDITIONAL
   DETAILS.

    YOU MUST COMPLETE THE FOLLOWING CERTIFICATE
       IF YOU CHECKED THE BOX IN PART III OF
                SUBSTITUTE FORM-W-9

   ----------------------------------------------
          CERTIFICATE OF AWAITING TAXPAYER
                IDENTIFICATION NUMBER

   I  certify under penalties  of perjury  that a
   taxpayer  identification  number has  not been
   issued to me, and either (a) I  have mailed or
   delivered   an   application   to  receive   a
   taxpayer      identification  number   to  the
   appropriate  IRS  Center  or  Social  Security
   Administration Office or (b) I  intend to mail
   or deliver  such an  application  in the  near
   future.    I  understand  that  if  I  do  not
   provide  a  taxpayer identification  number to
   the payer before the earliest of (i)  the date
   of payment  or (ii)  sixty (60)  days, 31%  of
   all reportable  payments  made  to me  may  be
   withheld.

   ------------------------  ---------------------,1996
          Signature                  Date



<PAGE>

                        The Depositary for the Offer is:

                  Chemical Mellon Shareholder Services, L.L.C.


By Mail:                                           By Hand/Overnight Delivery:
P.O. Box 817                                       120 Broadway, 13th Floor
Midtown Station                                    New York, NY 10271
New York, NY 10018                                 


                           By Facsimile Transmission:
                           (201) 296-4291 or 4293

                           Confirm by Telephone:
                           (201) 296-4983

             ------------------------------------------------------

  Any questions or requests for assistance or for additional copies of the
Offer to Purchase, this Letter of Transmittal and the Notice of Guaranteed
Delivery may be directed to the Information Agent at its address and the
telephone numbers set forth below. Stockholders may also contact their broker,
dealer, commercial bank, trust company or other nominee for assistance
concerning the Offer. 


                     The Information Agent for the Offer is:

                               MORROW & CO., INC.

                                909 Third Avenue
                            New York, New York 10022
                          (212) 754-8000 (Call Collect)
                                       or
                           1-800-662-5200 (Toll Free)


























                                 EXHIBIT (D)(3)
                          NOTICE OF GUARANTEED DELIVERY




<PAGE>


                  HORSEHEAD RESOURCE DEVELOPMENT COMPANY, INC.

                          NOTICE OF GUARANTEED DELIVERY
                                       FOR
                        TENDER OF SHARES OF COMMON STOCK

     This form  or a  facsimile hereof  must be  used to  accept  the Offer  (as
defined below) if:

          (a)  certificates for shares of common stock, par value $.01 per share
               ("Shares"), of  Horsehead Resource  Development Company,  Inc., a
               Delaware  corporation   (the  "Company"),  are   not  immediately
               available; or

          (b)  the procedure for book-entry transfer  (set forth in Section 2 of
               the Company's Offer  to Purchase, dated May 16,  1996 (the "Offer
               to Purchase")) cannot be followed on a timely basis; or

          (c)  time will  not permit  the Letter of  Transmittal, dated  May 16,
               1996, and all  other required documents  to reach the  depositary
               for the offer  (the "Depositary") before the  Expiration Date (as
               defined in Section 1 of the Offer to Purchase).

     This form, properly  completed and duly executed, may be delivered by hand,
mail or facsimile transmission to the Depositary.  See Section 2 of the Offer to
Purchase.
                                    To:
                                    ---
         Chemical Mellon Shareholder Services, L.L.C., Depositary 
         ---------------------------------------------------------

        By Mail:                               By Hand/Overnight Delivery:
        -------                                ---------------------------
      P.O. Box 817                             120 Broadway, 13th Floor
      Midtown Station                          New York, NY 10271
      New York, NY 10018

                         By Facsimile Transmission:
                         --------------------------
                           (201) 296-4291 or 4293
                           Confirm by Telephone:
                           ---------------------
                               (201) 296-4983
                                                               
             --------------------------------------------------

     DELIVERY OF THIS INSTRUMENT TO AN  ADDRESS OTHER THAN THOSE SHOWN ABOVE  OR
TRANSMISSION OF  INSTRUCTIONS TO A  FACSIMILE NUMBER  OTHER THAN THE  ONE LISTED
ABOVE WILL NOT CONSTITUTE A VALID DELIVERY.

     THIS FORM IS NOT TO  BE USED TO GUARANTEE SIGNATURES.  IF  A SIGNATURE ON A
LETTER OF TRANSMITTAL  IS REQUIRED TO BE GUARANTEED BY AN "ELIGIBLE INSTITUTION"
(AS  DEFINED IN  THE OFFER  TO PURCHASE)  UNDER THE  INSTRUCTIONS THERETO,  SUCH
SIGNATURE  GUARANTEE  MUST  APPEAR  IN  THE  APPLICABLE  SPACE  PROVIDED IN  THE
SIGNATURE BOX ON THE LETTER OF TRANSMITTAL.




<PAGE>
Ladies and Gentlemen:

     The  undersigned hereby  tenders to the  Company, at  a price of  $5.75 per
Share, net to the  seller in cash, upon the terms and  subject to the conditions
set forth in the Offer to Purchase  and the related Letter of Transmittal (which
together  constitute the  "Offer"),  receipt of  which  is hereby  acknowledged,
___________ Shares  pursuant to the  guaranteed delivery procedure set  forth in
Section 2 of the Offer to Purchase.



================================================================================

Number of Shares tendered:

- --------------------------------------------------------------------------------

Stock Certificate Nos. (if available):

- --------------------------------------------------------------------------------

If Shares will be delivered by book-entry transfer:
                                                   -----------------------------

Name of Tendering Institution:                                                  
                               -------------------------------------------------

- --------------------------------------------------------------------------------

 Account No.                             at:           SIGN HERE
             ----------------------------
                                              ----------------------------------
 [ ] The Depository Trust Company                    (Signature(s))
 [ ] Philadelphia Depository Trust Company

                                              ----------------------------------
                                                     (Signature(s))
 
                                              ----------------------------------
                                                    (Name(s)) (Please Print)

                                              ----------------------------------
                                                     (Address)

                                              ----------------------------------
                                                     (Zip Code)

                                              ----------------------------------
                                                 (Area Code and Telephone No.)


 Dated: ________________, 1996

                                        2

<PAGE>
                                    GUARANTEE

                    (Not to be used for signature guarantee)

    The  undersigned, an "Eligible Institution"  (as defined in Section 2 of the
Offer to Purchase), guarantees that the Depositary will receive either the stock
certificates  representing the  Shares  tendered  hereby,  in  proper  form  for
transfer,  or confirmation  of the book-entry  transfer of such  Shares into the
Depositary's  account  at  the  Depository  Trust Company  or  the  Philadelphia
Depository Trust  Company, in any such  case together with a  properly completed
and duly  executed  Letter of  Transmittal (or  a facsimile  thereof) and  other
documents required by  the Letter of  Transmittal, all within  three (3)  Nasdaq
National Market trading days after the date of execution of this notice.


                                              ----------------------------------
                                                          NAME OF FIRM

                                              ----------------------------------
                                                       AUTHORIZED SIGNATURE

                                              ----------------------------------
                                                       NAME (PLEASE PRINT)

                                              ----------------------------------
                                                             TITLE

                                              ----------------------------------
                                                            ADDRESS

                                              ----------------------------------
                                                            ZIP CODE

                                              ----------------------------------
                                                  (AREA CODE AND TELEPHONE NO.)


Dated:                                                        , 1996
       -------------------------------------------------------

            NOTE:  DO NOT SEND STOCK CERTIFICATES WITH THIS FORM.   
    YOUR STOCK CERTIFICATES MUST BE SENT WITH THE LETTER OF TRANSMITTAL.


                                     3





                                 EXHIBIT (D)(4)
                  LETTER TO BROKERS, DEALERS, COMMERCIAL BANKS,
                       TRUST COMPANIES AND OTHER NOMINEES





<PAGE>
                  HORSEHEAD RESOURCE DEVELOPMENT COMPANY, INC.

                           Offer to Purchase for Cash

                   Up to 1,751,600 Shares of its Common Stock

                                       at

                               $5.75 Net Per Share


                                                                    May 16, 1996

To Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees:

     Horsehead Resource Development  Company, Inc., a Delaware  corporation (the
"Company"), has appointed us to act as  Information Agent in connection with its
offer pursuant  to which  the  Company is  inviting its  stockholders to  tender
shares of  its common stock, par value $.01 per  share ("Shares"), at a price of
$5.75 per Share  (the "Purchase Price"),  net to  the seller in  cash, upon  the
terms and subject to  the conditions set forth  in the Offer to  Purchase, dated
May  16,  1996  (the  "Offer  to  Purchase"),  and  in  the  related  Letter  of
Transmittal, dated  May 16, 1996  (which together constitute  the "Offer").   We
enclose herewith the materials listed below relating to the Offer.

     The Company will  purchase, at  the Purchase  Price, net to  the seller  in
cash, up to  1,751,600 Shares that are  properly tendered (and not  withdrawn in
accordance with Section 3  of the Offer to Purchase), upon the terms and subject
to the  conditions of the  Offer.  The Company  reserves the right,  in its sole
discretion, to purchase more than 1,751,600  Shares pursuant to the Offer.   The
Offer  is  not conditioned  upon  any  minimum number  of  Shares being  validly
tendered.  The  Offer is,  however, subject  to certain other  conditions.   See
Section 5 of the Offer to Purchase.

     For your information and  for forwarding to your clients for  whom you hold
Shares registered in your name or in the name of  your nominee, we are enclosing
the following documents:

          (1)  Offer to Purchase, dated May 16, 1996;

          (2)  Letter of  Transmittal for  your use and  for the  information of
               your  clients (together  with  "Guidelines  for Certification  of
               Taxpayer Identification Number on Substitute Form W-9"  providing
               information relating to backup Federal income tax withholding);

          (3)  Notice of Guaranteed  Delivery to be used to  accept the Offer if
               certificates for  Shares are  not immediately  available (or  the
               procedures for book-entry transfer cannot be followed on a timely
               basis) or time will not permit  the Letter of Transmittal and all
               other required documents  to reach the  depositary for the  Offer
               (the "Depositary") before the Expiration Date (as defined  in the
               Offer to Purchase);


<PAGE>

          (4)  Letter to  Clients which  may be sent  to your clients  for whose
               accounts you hold Shares registered in  your name (or in the name
               of your nominee), with space provided for obtaining such client's
               instructions with regard to the Offer;

          (5)  Letter, dated May 16, 1996,  from William M. Quirk, President and
               Chief Executive Officer  of the Company,  to stockholders of  the
               Company; and 

          (6)  Return  envelope   addressed  to   Chemical  Mellon   Shareholder
               Services, LLC, as Depositary.

            PLEASE  BRING THE  OFFER TO  THE ATTENTION  OF YOUR  CLIENTS AS
            PROMPTLY AS  POSSIBLE.   THE OFFER  AND WITHDRAWAL RIGHTS  WILL
            EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY TIME, ON   FRIDAY, JUNE
            14, 1996, UNLESS THE OFFER IS EXTENDED.

     No fees or  commission will be payable to brokers, dealers or other persons
for  soliciting tenders  of Shares  pursuant  to the  Offer.   The  Company will
however, upon request, reimburse you for customary mailing and handling expenses
incurred by you in forwarding materials in respect of the Offer to your clients.
The Company will not pay (or  cause to be paid) any stock transfer taxes  on its
purchase of  Shares  pursuant to  the  Offer, except  as otherwise  provided  in
Instruction 6 of the Letter of Transmittal.

     In order  to take  advantage of  the Offer,  a duly  executed and  properly
completed Letter of Transmittal and any  other required documents should be sent
to the Depositary with either certificate(s) representing the tendered Shares or
confirmation  of   their  book-entry  transfer,  all  in   accordance  with  the
instructions set forth in the Offer.

     As  described in Section  2 of the  Offer to Purchase, tenders  may be made
even though  stock certificates are not immediately available (or the procedures
for book-entry transfer cannot  be followed on a timely basis)  or time will not
permit the Letter of  Transmittal and all other required documents  to reach the
Depositary before the Expiration Date, if such tenders are made by or through an
"Eligible Institution" (as  defined in the Offer to Purchase).  Certificates for
Shares so  tendered in proper  form for transfer  (or a confirmation  of a book-
entry transfer of such Shares into the Depositary's account at one of the "Book-
Entry Transfer Facilities" described in the Offer to Purchase),  together with a
properly completed  and  duly executed  Letter of  Transmittal  (or a  facsimile
thereof) and any  other documents required by the Letter of Transmittal, must be
received by the Depositary  within three (3) Nasdaq National Market trading days
after the date of  execution of a properly completed and duly executed Notice of
Guaranteed Delivery.

     Any questions you have with respect to the Offer should be addressed to the
Information  Agent at  its address and  telephone number  set forth on  the back
cover of the Offer to Purchase.  



                                        2

<PAGE>
Requests for  additional copies of the enclosed material  may be directed to the
Information Agent, Morrow & Co., Inc., at 1-800- 662-5200.

                                        Very truly yours,

                                        MORROW & CO., INC.



        NOTHING CONTAINED  HEREIN OR  IN THE  ENCLOSED DOCUMENTS  SHALL
        CONSTITUTE YOU  OR ANY OTHER  PERSON THE AGENT  OF THE COMPANY,
        THE INFORMATION AGENT OR THE DEPOSITARY OR AUTHORIZE YOU OR ANY
        OTHER  PERSON TO  MAKE ANY  STATEMENTS OR  USE ANY  MATERIAL ON
        BEHALF OF ANY OF THEM WITH RESPECT TO THE OFFER, OTHER THAN THE
        MATERIAL  ENCLOSED  HEREWITH  AND  THE  STATEMENTS SPECIFICALLY
        CONTAINED IN SUCH MATERIAL.


                                        3














                                 EXHIBIT (D)(5)
                          LETTER TO CLIENTS FOR USE BY
                       BROKERS, DEALERS, COMMERCIAL BANKS,
                       TRUST COMPANIES AND OTHER NOMINEES


<PAGE>
                  HORSEHEAD RESOURCE DEVELOPMENT COMPANY, INC.

                           Offer to Purchase for Cash

                   Up to 1,751,600 Shares of its Common Stock

                                       at

                               $5.75 Net Per Share


                                                                    May 16, 1996

To Our Clients:

     Enclosed for  your consideration are the  Offer to Purchase, dated  May 16,
1996 (the "Offer to Purchase"), and the related Letter of Transmittal, dated May
16, 1996  (which together constitute the "Offer"),  in connection with the Offer
by  Horsehead Resource Development  Company, Inc.,  a Delaware  corporation (the
"Company"), pursuant to which the Company is inviting its stockholders to tender
shares of its common  stock, par value $.01 per share ("Shares"),  at a price of
$5.75 per Share  (the "Purchase  Price"), net to  the seller  in cash, upon  the
terms and subject to the conditions of the Offer.

     All  Shares properly  tendered and not  withdrawn will be  purchased at the
Purchase Price, net to  the seller in  cash, upon the terms  and subject to  the
conditions of the Offer.  All Shares not purchased pursuant to the Offer will be
returned to the tendering stockholders  at the Company's expense as promptly  as
practicable following the Expiration Date (as defined  in Section 1 of the Offer
to Purchase).    The Company  reserves the  right, in  its  sole discretion,  to
purchase more than 1,751,600 Shares pursuant to  the Offer. See Section 1 of the
Offer to Purchase.

     We are the holder  of record of Shares held for your account.   As such, we
are the  only ones who can  tender your Shares,  and then only pursuant  to your
instructions.  The Letter of Transmittal is for your information only and cannot
be used by you to tender Shares we hold for your account.

     Please instruct  us as to whether you  wish us to tender any  of or all the
Shares we hold for your account upon the terms and subject to  the conditions of
the Offer.

     We call your attention to the following:

          (1)  You may tender  any portion of or all your Shares as indicated in
               the attached instruction form.

          (2)  The Offer  is not conditioned  upon any minimum number  of Shares
               being tendered.  The Offer  is, however, subject to certain other
               conditions.  See Section 5 of the Offer to Purchase.





<PAGE>

          (3)  The Offer and  withdrawal rights will  expire at 12:00  midnight,
               New York City time, on Friday, June 14, 1996, unless the Offer is
               extended.

          (4)  The  Offer   is  for   up  to   1,751,600  Shares,   representing
               approximately 4.8% of the Shares outstanding as of May 16, 1996.

          (5)  Tendering stockholders will not be obligated to pay any brokerage
               commissions, solicitation fees,  or, subject to Instruction  6 of
               the Letter of  Transmittal, any stock transfer taxes with respect
               to the transfer and sale of Shares to the Company pursuant to the
               Offer.

     If you wish to have us tender any of or all your Shares, please so instruct
us  by completing, executing and returning  to us the attached instruction form.
An envelope to return your instruction form to us is enclosed.  If you authorize
us to  tender your  Shares, we will  tender all such  Shares unless  you specify
otherwise on the instruction form.

         YOUR INSTRUCTIONS  SHOULD BE FORWARDED  TO US IN  AMPLE TIME TO
         PERMIT  US  TO  SUBMIT  A  TENDER  ON  YOUR BEHALF  BEFORE  THE
         EXPIRATION DATE.   THE OFFER AND WITHDRAWAL  RIGHTS WILL EXPIRE
         AT  12:00 MIDNIGHT,  NEW YORK  CITY TIME,  ON FRIDAY,  JUNE 14,
         1996, UNLESS THE OFFER IS EXTENDED.

     This Offer  is not being made to, nor  will the Company accept tenders from
or on behalf of, owners of Shares in any jurisdiction in which the making of the
Offer  or its  acceptance  would not  be in  compliance  with the  laws of  such
jurisdiction.  In  any jurisdiction in which  the securities, blue sky  or other
laws require the Offer to be made by a licensed broker or dealer, the Offer will
be deemed to be made  on the Company's behalf by one or  more registered brokers
or dealers licensed under the laws of such jurisdiction.





                                        2

<PAGE>


                                     INSTRUCTIONS

                                 With Respect to the

                              Offer to Purchase for Cash

                        Up to 1,751,600 Shares of Common Stock

                                          of

                     HORSEHEAD RESOURCE DEVELOPMENT COMPANY, INC.

          The undersigned acknowledge(s) receipt of your letter and the enclosed
     Offer  to  Purchase,  dated  May  16,  1996,  and  the  related  Letter  of
     Transmittal, dated May 16, 1996 (which together constitute the "Offer"), in
     connection with the Offer by  Horsehead Resource Development Company, Inc.,
     a  Delaware  corporation  (the  "Company"),  to purchase  for  cash  up  to
     1,751,600 shares  of its common stock, par value $.01 per share ("Shares"),
     at a price  of $5.75 per Share, net  to the seller in cash,  upon the terms
     and subject to the conditions of the Offer.

          The undersigned  hereby instruct(s) you  to tender to the  Company the
     number of Shares indicated below or, if  no number is indicated, all Shares
     you hold for the account of the undersigned, upon the terms  and subject to
     the conditions of the Offer.

      Aggregate number of Shares to be tendered by you for the account of the
      undersigned:*

                                              Shares
      ----------------------------------------

      *Unless otherwise indicated, all the Shares held for the account of the
      undersigned will be tendered.

                                  SIGNATURE BOX

      Dated:              , 1996
             ------------

                                           --------------------------------
                                                 (Signature(s))


                                           --------------------------------
                                            (Name(s)) (Please Print)


                                          --------------------------------
                                                    (Address)


                                           --------------------------------
                                                  (Zip Code)


                                           --------------------------------
                                          (Area Code and Telephone No.)


                                           --------------------------------
                                           Taxpayer Identification or Social
                                                  Security Number

                                         3

































                                 EXHIBIT (D)(6)
                         GUIDELINES FOR CERTIFICATION OF
              TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9




























<PAGE>
             GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                        NUMBER ON SUBSTITUTE FORM W-9

Guidelines for Determining the Proper Identification Number to Give the 
Payor--Social Security numbers have nine digits separated by two hyphens: 
i.e., 000-00-0000.  Employer identification numbers have nine digits separated 
by only one hyphen: i.e.. 00-0000000.  The table below will determine the 
number to give the Payor.

<TABLE><CAPTION>
- ---------------------------------------------------    --------------------------------------------------
                                   Give the                                         Give theEMPLOYER
For this type of account:     SOCIAL SECURITY          For this type of account:    IDENTIFICATION
                              number of--                                           number of--
- ---------------------------------------------------    --------------------------------------------------
<S>                          <C>                       <C>                          <C>
1.   An individual's account  The individual           8.   Sole proprietorship     The owner(4)
                                                            account

2.   Two or more individuals  The actual owner of      9.   A valid trust, estate,  The legal entity
     (joint account)          the account or, if            or pension trust        (Do not furnish the
                              combined funds, any                                   identifying number
                              one of the                                            of the personal representative or
                              individuals(1)                                        trustee unless the legal
                                                                                    entity itself is not designated
                                                                                    in the account title.)(5)

3    Husband and wife (joint  The actual owner of      10.  Corporate account       The corporation
     account)                 the account or, if
                              joint funds, either
                              person(1)

4.   Custodian account of a                            11.  Religious, charitable,  The organization
     minor (Uniform Gift to   The minor(2)                  or educational
     Minors Act)                                            organization account

5.   Adult and minor (joint   The adult or, if the     12.  Partnership account     The partnership
     account)                 minor is the only             held in the name of the
                              contributor, the              business
                              minor(1)

6.   Account in the name of   The ward, minor, or      13.  Association, club or    The organization
     guardian or committee    incompetent person(3)         other tax-exempt
     for a designated ward,                                 organization
     minor, or incompetent
     person

7.   a.   The usual                                    14.  A broker or registered  The broker or
          revocable savings                                 nominee                 nominee
          trust account       The grantor-trustee(1)
          (grantor is also
          trustee)
   
                                                       
    b.    So-called trust                              15.  Account with the        The public entity
          account that is                                   Department of
          not a legal or      The actual owner(1)           Agriculture in the name
          valid trust under                                 of a public entity
          State law                                         (such as a State or
                                                            local governmental,
                                                            school district or
                                                            prison) that receives
                                                            agricultural program
                                                            payments

</TABLE>

(1)  List first and circle the name of the person whose number you furnish.

(2)  Circle the minor's name and furnish the minor's social security number.

(3)  Circle the ward's, minor's or incompetent person's name and furnish such 
     person's social security number.

(4)  Show the name of the owner.

(5)  List first and circle the name of the legal trust, estate or pension trust.

NOTE: If no name is circled when there is more than one name, the number will 
      be considered to be that of the first name listed.


<PAGE>


               GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                            NUMBER ON SUBSTITUTE FORM W-9
                                        Page 2
Obtaining a Number
If you don't have a taxpayer
identification number or you don't         Payments of interest not generally
know your number, obtain Form SS-5,        subject to back- up withholding
Application for a Social Security          include the following:
Number Card, or Form SS-4,
Application for Employer                     Payments of interest on obligations
Identification Number, at the local          issued by individuals.  Note: You
office of the Social Security                may be subject to back- up
Administration or the Internal               withholding if this interest is
Revenue Service and apply for a              $600 or more and is paid in the
number.                                      course of the payer's trade or
                                             business and you have not provided
Payees Exempt from Backup Withholding        your correct taxpayer
                                             identification number to the payer.
Payees specifically exempted from
backup withholding on ALL payments           Payments of tax-exempt interest
include the following:                       (including exempt interest
                                             dividends under section 852).
   A corporation.
                                             Payments described in section
   A financial institution.                  6049(b)(5) to non-resident aliens.

   An organization exempt from tax           Payments on tax-free covenant bonds
   under section 501(a), or an               under section 1451.
   individual retirement plan.
                                             Payments made to a nominee.
   The United States or any agency or
   instrumentality thereof.                Exempt payees described above should
                                           file Form W-9 to avoid possible
   A State, the District of Columbia,      erroneous backup withholding.  FILE
   a possession of the United States,      THIS FORM WITH THE PAYER, FURNISH
   or any subdivision or                   YOUR TAXPAYER IDENTIFICATION NUMBER,
   instrumentality thereof.                WRITE "EXEMPT" ON THE FACE OF THE
                                           FORM, AND RETURN IT TO THE PAYER.  IF
   A foreign government, a political       THE PAYMENTS ARE INTEREST, DIVIDENDS,
   subdivision of a foreign                OR PATRONAGE DIVIDENDS, ALSO SIGN AND
   government, or any agency or            DATE THE FORM.
   instrumentality thereof.                  Certain payments other than
                                           interest, dividends, and patronage
   An international organization or        dividends that are not subject to
   any agency, or instrumentality          information reporting are also not
   thereof.                                subject to backup withholding.  For
                                           details, see the regulations under
   A registered dealer in securities       sections 6041, 6041A(a), 6045, and
   or commodities registered in the        6050A.
   U.S. or a possession of the U.S.        Privacy Act Notice--Section 6109
                                           requires most recipients of dividend
   A real estate investment trust.         interest, or other payments to give
                                           taxpayer identification numbers to
   A common trust fund operated by a       payers who must report the payments
   bank under section 584(a).              to IRS. IRS uses the numbers for
                                           identification purposes.  Payers must
   An exempt charitable remainder          be given the numbers whether or not
   trust, or a non-exempt trust            recipients are required to file tax
   described in section 4947(a)(1).        returns.  Beginning January 1, 1993,
                                           payers must generally withhold 31% of
   An entity registered at all times       taxable interest, dividend and
   under the Investment Company Act of     certain other payments to a payee who
   1940.                                   does not furnish a taxpayer
                                           identification number to a payer. 
   A foreign central bank of issue.        Certain penalties may also apply.

Payments of dividends and patronage        Penalties
dividends not generally subject to         (1)  Penalty for Failure to Furnish
backup withholding include the             Taxpayer Identification Number--If
following:                                 you fail to furnish your taxpayer
                                           identification number to a payer, you
   Payments to nonresident aliens          are subject to a penalty of $50 for
   subject to withholding under            each such failure unless your failure
   section 1441.                           is due to reasonable cause and not to
                                           willful neglect.
   Payments to partnerships not            (2)  Civil Penalty for False
   engaged in a trade or business in       Information With Respect to
   the U.S. and which have at least        Withholding--If you make a false
   one nonresident partner.                statement with no reasonable basis
                                           which results in no imposition of
   Payments of patronage dividends         backup withholding, you are subject
   where the amount received is not        to a penalty of $500.
   paid in money.                          (3)  Criminal Penalty for Falsifying
                                           Information-Falsifying certifications
   Payments made by certain foreign        or affirmations may subject you to
   organizations.                          criminal penalties including fines
                                           and/or imprisonment.
   Payments made to a nominee.
                                           FOR ADDITIONAL INFORMATION CONTACT
                                           YOUR TAX CONSULTANT OR THE INTERNAL
                                           REVENUE SERVICE.







                                 EXHIBIT (D)(7)
                    LETTER TO THE COMPANY'S STOCKHOLDERS FROM
            THE PRESIDENT AND CHIEF EXECUTIVE OFFICER OF THE COMPANY







<PAGE>






                            HORSEHEAD RESOURCE 
                           DEVELOPMENT CO., INC.

                            110 East 59th Street
                             New York, NY 10022
                               (212) 527-3003

                                                               May 16, 1996



To Our Stockholders:

          This letter is to inform you that Horsehead Resource Development
Company, Inc. (the "Company") is offering to purchase up to 1,751,600
shares (representing approximately 4.8% of the currently outstanding shares)
of its common stock from its public stockholders at a per share price of
$5.75, net to the seller in cash.

          Upon termination of the offer, the Company will delist its common
stock from the NASDAQ National Market and cease to be a reporting company
under the Securities Exchange Act of 1934, as amended.  Accordingly, no
public market for the shares will exist after the offer.

          The offer is explained in detail in the enclosed Offer to
Purchase and Letter of Transmittal.  If you wish to tender your shares,
detailed instructions on how to tender shares are also in the enclosed
materials.  Also enclosed is the Company's Annual Report on Form 10-K for
the year ended December 31, 1995.  We encourage you to read these materials
carefully before making any decision with respect to the offer.

          Please note that the offer is scheduled to expire at 12:00
midnight, New York City time, on Friday, June 14, 1996, unless extended by
the Company.  Questions regarding the offer may be directed to Morrow &
Co., Inc., the Information Agent, at 1-800-662-5200 (toll free).

                                        Sincerely,


                                        /s/ William M. Quirk
                                        William M. Quirk
                                        President and CEO











                                  EXHIBIT (D)(8)
                                  PRESS RELEASE





<PAGE>




Media Contact
- -------------
(212) 527-3003


                       HORSEHEAD RESOURCE DEVELOPMENT
                       ------------------------------
                 GOING PRIVATE, COMMENCES CASH TENDER OFFER
                 ------------------------------------------


New York, NY, May 16, 1996 (NASDAQ-HHRD).  Horsehead Resource Development
Co., Inc. (HRD) announced today the commencement of an offer to repurchase all
1,751,600 shares of its common stock held by its public stockholders.  The
offer will expire on June 14, 1996, unless extended.  The purchase price 
for each share of common stock is $5.75 per share in cash.  
The offer will be subject to various terms and
conditions described in offering materials to be distributed to public
stockholders.  Chemical Mellon Shareholder Services, L.L.C. will serve as
depositary and Morrow & Co., Inc. will serve as the information agent. 
After the repurchase, HRD will become a private company and its shares will
no longer be listed on NASDAQ or registered under the Federal securities
laws.




































                                   EXHIBIT (G)
                 ISSUER TENDER OFFER STATEMENT ON SCHEDULE 13E-4



<PAGE>

                                                                             
================================================================================
                                                        
                        ================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                              ____________________

                                 SCHEDULE 13E-4
                          ISSUER TENDER OFFER STATEMENT

      (Pursuant to Section 13(e)(1) of the Securities Exchange Act of 1934)

                  HORSEHEAD RESOURCE DEVELOPMENT COMPANY, INC.
                  (Name of Issuer and Person Filing Statement)

                     Common Stock, Par Value $.01 Per Share
                         (Title of Class of Securities)

                                   440699-10-6
                      (CUSIP Number of Class of Securities)

                           William M. Quirk, President
                  Horsehead Resource Development Company, Inc.
                              110 East 59th Street
                            New York, New York 10022
                                 (212) 527-3003
      (Name, Address and Telephone Number of Person Authorized to Receive 
      Notices and Communications on Behalf of the Person Filing Statement)

                                    Copy to:
                               Morris Orens, Esq.
                    Shereff, Friedman, Hoffman & Goodman, LLP
                                919 Third Avenue
                            New York, New York 10022
                                 (212) 758-9500

                                  May 16, 1996
     (Date Tender Offer First Published, Sent or Given to Security Holders)

                            CALCULATION OF FILING FEE
                                                                              
================================================================================

          Transaction  Valuation*                      Amount of Filing Fee
          ----------------------                       --------------------
               $10,071,700                             $2,014.34
                                                                              
================================================================================

 *   Based upon purchase of 1,751,600 shares at $5.75 per share.

[ ]  Check box if any part of  the fee is offset as provided by  Rule 0-11(a)(2)
     and identify  the filing with which the offsetting fee was previously paid.
     Identify the previous filing by  registration statement number, or the Form
     or Schedule and the date of its filing.

Amount Previously Paid:   Not Applicable

Form or Registration No.:   Not Applicable

Filing Party:  Not Applicable

Date Filed:  Not Applicable
                                                                                
================================================================================


<PAGE>


                                 SCHEDULE 13E-4

                                  INTRODUCTION

     This Issuer Tender Offer Statement  (this "Statement") relates to the offer
by  Horsehead Resource Development  Company, Inc.,  a Delaware  corporation (the
"Company"), to purchase  up to 1,751,600 shares  of its common stock,  par value
$.01 per  share (the "Shares"), for $5.75 per Share,  net to the seller in cash,
upon the terms and subject to the conditions set forth in the Offer to Purchase,
dated May  16, 1996  (the "Offer to  Purchase"), and  in the  related Letter  of
Transmittal, dated May 16, 1996  (which together constitute the "Offer"), copies
of which are attached hereto as Exhibits (a)(1) and (a)(2), respectively.  


ITEM 1.   SECURITY AND ISSUER.

          (a)  The name of the issuer is Horsehead Resource Development Company,
Inc., a Delaware corporation,  which has its principal executive offices  at 110
East 59th Street, New York, New York 10022.

          (b)  This Statement  relates to the  offer by the Company  to purchase
the Shares at a  price of $5.75 per  Share, net to the seller in cash, upon  the
terms  and  subject  to the  conditions  set  forth in  the  Offer  to Purchase.
Reference  is hereby  made to  the "Introduction,"  "The Offer  - 1.   Number of
Shares; Extension of the Offer," "The Offer - 7.   Background and Purpose of the
Offer and the Purchase," "The Offer  - 9. Source and Amount of Funds"  and  "The
Offer -  11.  Transactions and Arrangements concerning  the Shares" of the Offer
to Purchase, each of which is herein incorporated by reference.  

          (c)  Reference is hereby  made to the "Introduction" and  "The Offer -
6.  Price Range of Shares; Dividends" of the Offer to Purchase, each of which is
herein incorporated by reference.

          (d)  Not applicable.


ITEM 2.   SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

     (a)-(b)   Reference is hereby made to "The Offer - 9.  Source and Amount of
Funds"  of  the Offer  to  Purchase,  which Section  is  herein  incorporated by
reference.


ITEM 3.   PURPOSE OF THE  TENDER OFFER AND PLANS  OR PROPOSALS OF THE  ISSUER OR
          AFFILIATE.

     (a)-(j)  Reference is hereby made to the "Introduction," "Special Factors -
Purpose of the  Offer," "Special Factors -  Certain Effects of the  Offer," "The
Offer  - 6.  Price Range of Shares;  Dividends," "The Offer - 7.  Background and
Purpose of  the Offer and  the Purchase" and  "The Offer -  13.  Effects  of the
Offer  on the Market  for Shares;   Registration under the Exchange  Act" of the
Offer to Purchase, each of which is herein incorporated by reference.



                                        2
<PAGE>

ITEM 4.   INTEREST IN SECURITIES OF THE ISSUER.

     Reference is hereby made to "The Offer - 11.  Transactions and Arrangements
Concerning  the  Shares" of  the  Offer to  Purchase,  which  Section is  herein
incorporated by reference.


ITEM 5.   CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH  RESPECT
          TO THE ISSUER'S SECURITIES.

     Reference  is  hereby  made  to  the  "Introduction,"  "Special  Factors  -
Relationship  Between Major  Stockholders,"  "The  Offer -  7.   Background  and
Purpose of the Offer  and the Purchase" and  "The Offer - 11.   Transactions and
Arrangements Concerning the Shares" of the  Offer to Purchase, each of which  is
herein incorporated by reference.


ITEM 6.   PERSONS RETAINED, EMPLOYED OR TO BE COMPENSATED.

     Reference is  hereby made to  the front cover page,  the "Introduction" and
"The Offer - 15.   Fees and Expenses" of the Offer to Purchase, each of which is
herein incorporated by reference. 


ITEM 7.   FINANCIAL INFORMATION.

     (a)-(b)   Reference  is hereby made to "The Offer - 8.  Certain Information
Concerning  the Company"  of the  Offer  to Purchase,  which  Section is  herein
incorporated by reference.  The audited  financial statements of the Company set
forth in the Company's Report on Form  10-K for the year ended December 31, 1995
are incorporated herein by reference.  The unaudited financial statements of the
Company set forth in the Company's Report on  Form 10-Q for the quarterly period
ended March 31, 1996 are incorporated herein by reference.


ITEM 8.   ADDITIONAL INFORMATION.

     (a)  None.

     (b)  Reference is hereby made  to "The Offer - 12.   Certain Legal Matters;
Regulatory  Approvals; No  Appraisal Rights"  of  the Offer  to Purchase,  which
Section is herein incorporated by reference.

     (c)  Reference is  hereby made to "Special Factors - Certain Effects of the
Offer" and  "The Offer -  13.  Effects  of the Offer  on the Market  for Shares;
Registration under the Exchange Act" of the Offer to Purchase, each of which  is
herein incorporated by reference.

     (d)  Reference is  hereby made to "The Offer - 5.  Certain Conditions of 
the Offer" of the Offer to Purchase, which Section is herein incorporated by 
reference.  



                                        3

<PAGE>



     (e)  Reference is  hereby made  to the  Offer to  Purchase and the  related
Letter of  Transmittal, copies of which  are attached hereto as  Exhibits (a)(1)
and  (a)(2), respectively,  and are  herein incorporated  by reference  in their
entirety.


ITEM 9.   MATERIAL TO BE FILED AS EXHIBITS.

     (a)(1)    Offer to Purchase, dated May 16, 1996.
     (a)(2)    Letter of Transmittal, dated May 16, 1996.
     (a)(3)    Notice of Guaranteed Delivery, dated May 16, 1996.
     (a)(4)    Letter to Brokers, Dealers, Commercial Banks, Trust Companies and
               Other Nominees dated May 16, 1996.
     (a)(5)    Letter to Clients for use  by Brokers, Dealers, Commercial Banks,
               Trust Companies and Other Nominees, dated May 16, 1996.
     (a)(6)    Guidelines for Certification of Taxpayer Identification Number on
               Substitute Form W-9.
     (a)(7)    Letter to the Company's Stockholders from the President and Chief
               Executive Officer of the Company.
     (a)(8)    Press Release, dated May 16, 1996.
     (b)       Not applicable.
     (c)(1)    Shareholders  Agreement, dated  as of  July 26,  1988,  among the
               Company, HII and B.U.S. Environmental Services, Inc.
     (c)(2)    Amendment  to Shareholders Agreement,  dated July 24,  1990 among
               B.U.S. Environmental  Services, Inc.,  HII, Horsehead  Investment
               Management Corporation and the Company.
     (d)       Not applicable.
     (e)       Not applicable.
     (f)       None, except  those materials referred  to in (a)(1),  (a)(2), 
               (a)(3), (a)(4), (a)(5) and (a)(6). 


                                      4


<PAGE>


                                    SIGNATURE

     After due inquiry  and to the  best of my  knowledge and belief,  I certify
that the information set forth in this statement is true, complete and correct.

                              HORSEHEAD RESOURCE DEVELOPMENT 
                              COMPANY, INC.


                              By:  /s/  William M. Quirk                        
                                  ----------------------------------------------
                                   William M. Quirk
                                   President

Date: May 16, 1996



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