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                                                                    EXHIBIT 10.4

                                PLEDGE AGREEMENT


         THIS PLEDGE AGREEMENT (this "Pledge Agreement") is entered into as of
March 31, 1998 among SIMCALA, INC., a Delaware corporation (the "Borrower"),
SIMCALA HOLDINGS, INC., a Georgia corporation, and certain Subsidiaries of the
Borrower (individually a "Guarantor", and collectively the "Guarantors";
together with the Borrower, individually a "Pledgor", and collectively the
"Pledgors") and NATIONSBANK, N.A., in its capacity as agent (in such capacity,
the "Agent") for the lenders from time to time party to the Credit Agreement
described below (the "Lenders").

                                    RECITALS

         WHEREAS, pursuant to that certain Credit Agreement dated as of the date
hereof (as amended, modified, extended, renewed or replaced from time to time,
the "Credit Agreement") among the Borrower, the Guarantors, the Lenders and the
Agent, the Lenders have agreed to make Loans and issue Letters of Credit upon
the terms and subject to the conditions set forth therein; and

         WHEREAS, it is a condition precedent to the effectiveness of the Credit
Agreement and the obligations of the Lenders to make their respective Loans and
to issue Letters of Credit under the Credit Agreement that the Pledgors shall
have executed and delivered this Pledge Agreement to the Agent for the ratable
benefit of the Lenders.

         NOW, THEREFORE, in consideration of these premises and other good and
valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, the parties hereto agree as follows:

         1. Definitions. Unless otherwise defined herein, capitalized terms used
herein shall have the meanings ascribed to such terms in the Credit Agreement.
For purposes of this Pledge Agreement, the term "Lender" shall include any
Affiliate of any Lender which has entered into a Hedging Agreement with the
Borrower.

         2. Pledge and Grant of Security Interest. To secure the prompt payment
and performance in full when due, whether by lapse of time or otherwise, of the
Pledgor Obligations (as defined in Section 3 hereof), each Pledgor hereby
pledges and assigns to the Agent, for the benefit of the Lenders, and grants to
the Agent, for the benefit of the Lenders, a continuing security interest in any
and all right, title and interest of such Pledgor in and to the following,
whether now owned or existing or owned, acquired, or arising hereafter
(collectively, the "Pledged Collateral"):

                           (a) Pledged Shares. 100% (or, if less, the full
         amount owned by such Pledgor) of the issued and outstanding shares of
         capital stock owned by such Pledgor of each Subsidiary of such Pledgor
         set forth on Schedule 2(a) attached hereto, in each case together with
         the certificates (or other agreements or instruments), if any,
         representing


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         such shares, and all options and other rights, contractual or
         otherwise, with respect thereto (collectively, together with the shares
         of capital stock described in Section 2(b) and 2(c) below, the "Pledged
         Shares"), including, but not limited to, the following:

                           (y) all shares or securities representing a dividend
                  on any of the Pledged Shares, or representing a distribution
                  or return of capital upon or in respect of the Pledged Shares,
                  or resulting from a stock split, revision, reclassification or
                  other exchange therefor, and any subscriptions, warrants,
                  rights or options issued to the holder of, or otherwise in
                  respect of, the Pledged Shares; and

                           (z) without affecting the obligations of the Pledgors
                  under any provision prohibiting such action hereunder or under
                  the Credit Agreement, in the event of any consolidation or
                  merger involving the issuer of any Pledged Shares and in which
                  such issuer is not the surviving corporation, all shares of
                  each class of the capital stock of the successor corporation
                  formed by or resulting from such consolidation or merger.

                  (b) Additional Shares. 100% (or, if less, the full amount
         owned by such Pledgor) of the issued and outstanding shares of capital
         stock owned by such Pledgor of any Person which hereafter becomes a
         Subsidiary of such Pledgor, including, without limitation, the
         certificates representing such shares.

                  (c) Other Equity Interests. Any and all other Capital Stock in
         each Pledgor in any Subsidiary of such Pledgor.

                  (d) Proceeds. All proceeds and products of the foregoing,
         however and whenever acquired and in whatever form.

         Without limiting the generality of the foregoing, it is hereby
specifically understood and agreed that a Pledgor may from time to time
hereafter deliver additional shares of stock to the Agent as collateral security
for the Pledgor Obligations. Upon delivery to the Agent, such additional shares
of stock shall be deemed to be part of the Pledged Collateral of such Pledgor
and shall be subject to the terms of this Pledge Agreement whether or not
Schedule 2(a) is amended to refer to such additional shares.

         3. Security for Pledgor Obligations. The security interest created
hereby in the Pledged Collateral of each Pledgor constitutes continuing
collateral security for all of the following, whether now existing or hereafter
incurred (the "Pledgor Obligations"):

                  (a) In the case of the Borrower, the prompt performance and
         observance by the Borrower of all obligations of the Borrower under the
         Credit Agreement, the Notes, this Pledge Agreement and the other Credit
         Documents to which the Borrower is a party;


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                  (b) In the case of the Guarantors, the prompt performance and
         observance by such Guarantor of all obligations of such Guarantor under
         the Credit Agreement, this Pledge Agreement and the other Credit
         Documents to which such Guarantor is a party, including, without
         limitation, its guaranty obligations arising under Section 4 of the
         Credit Agreement; and

                  (c) All other indebtedness, liabilities and obligations of any
         kind or nature, now existing or hereafter arising, owing from any
         Pledgor to any Lender or the Agent, howsoever evidenced, created,
         incurred or acquired, whether primary, secondary, direct, contingent,
         or joint and several, including, without limitation, all liabilities
         arising under Hedging Agreements and all obligations and liabilities
         incurred in connection with collecting and enforcing the Pledgor
         Obligations.

         4. Delivery of the Pledged Collateral. Each Pledgor hereby agrees that:

                  (a) Each Pledgor shall deliver to the Agent (i) simultaneously
         with or prior to the execution and delivery of this Pledge Agreement,
         all certificates representing the Pledged Shares of such Pledgor and
         (ii) within a reasonable time upon the receipt thereof by or on behalf
         of a Pledgor, all other certificates and instruments constituting
         Pledged Collateral of a Pledgor. Prior to delivery to the Agent, all
         such certificates and instruments constituting Pledged Collateral of a
         Pledgor shall be held in trust by such Pledgor for the benefit of the
         Agent pursuant hereto. All such certificates shall be delivered in
         suitable form for transfer by delivery or shall be accompanied by duly
         executed instruments of transfer or assignment in blank, substantially
         in the form provided in Exhibit 4(a) attached hereto.

                  (b) Additional Securities. If such Pledgor shall receive by
         virtue of its being or having been the owner of any Pledged Collateral,
         any (i) stock certificate, including without limitation, any
         certificate representing a stock dividend or distribution in connection
         with any increase or reduction of capital, reclassification, merger,
         consolidation, sale of assets, combination of shares, stock splits,
         spin-off or split-off, promissory notes or other instrument; (ii)
         option or right, whether as an addition to, substitution for, or an
         exchange for, any Pledged Collateral or otherwise; (iii) dividends
         payable in securities; or (iv) distributions of securities in
         connection with a partial or total liquidation, dissolution or
         reduction of capital, capital surplus or paid-in surplus, then such
         Pledgor shall receive such stock certificate, instrument, option, right
         or distribution in trust for the benefit of the Agent, shall segregate
         it from such Pledgor's other property and shall deliver it forthwith to
         the Agent in the exact form received together with any necessary
         endorsement and/or appropriate stock power duly executed in blank,
         substantially in the form provided in Exhibit 4(a), to be held by the
         Agent as Pledged Collateral and as further collateral security for the
         Pledgor Obligations.

                  (c) Financing Statements. Each Pledgor shall execute and
         deliver to the Agent such UCC or other applicable financing statements
         as may be reasonably requested by 



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         the Agent in order to perfect and protect the security interest created
         hereby in the Pledged Collateral of such Pledgor.

         5. Representations and Warranties. Each Pledgor hereby represents and
warrants to the Agent, for the benefit of the Lenders, that so long as any of
the Pledgor Obligations remain outstanding or any Credit Document or Hedging
Agreement is in effect or any Letter of Credit shall remain outstanding, and
until all of the Commitments shall have been terminated:

                  (a) Authorization of Pledged Shares. The Pledged Shares are
         duly authorized and validly issued, are fully paid and nonassessable
         and are not subject to the preemptive rights of any Person. All other
         shares of stock constituting Pledged Collateral will be duly authorized
         and validly issued, fully paid and nonassessable and not subject to the
         preemptive rights of any Person.

                  (b) Title. Each Pledgor has good and indefeasible title to the
         Pledged Collateral of such Pledgor and will at all times be the legal
         and beneficial owner of such Pledged Collateral free and clear of any
         Lien, other than Permitted Liens. There exists no "adverse claim"
         within the meaning of Section 8-302 of the Uniform Commercial Code as
         in effect in the State of North Carolina (the "UCC") with respect to
         the Pledged Shares of such Pledgor.

                  (c) Exercising of Rights. The exercise by the Agent of its
         rights and remedies hereunder will not violate any law or governmental
         regulation or any material contractual restriction binding on or
         affecting a Pledgor or any of its property.

                  (d) Pledgor's Authority. No authorization, approval or action
         by, and no notice or filing with any Governmental Authority or with the
         issuer of any Pledged Stock is required either (i) for the pledge made
         by a Pledgor or for the granting of the security interest by a Pledgor
         pursuant to this Pledge Agreement or (ii) for the exercise by the Agent
         or the Lenders of their rights and remedies hereunder (except as may be
         required by laws affecting the offering and sale of securities).

                  (e) Security Interest/Priority. This Pledge Agreement creates
         a valid security interest in favor of the Agent for the benefit of the
         Lenders, in the Pledged Collateral. The taking possession by the Agent
         of the certificates representing the Pledged Shares and all other
         certificates and instruments constituting Pledged Collateral will
         perfect and establish the first priority of the Agent's security
         interest in the Pledged Shares and, when properly perfected by filing
         or registration, in all other Pledged Collateral represented by such
         Pledged Shares and instruments securing the Pledgor Obligations. Except
         as set forth in this Section 5(e), no action is necessary to perfect or
         otherwise protect such security interest.

                  (f) No Other Shares. No Pledgor owns any shares of stock other
         than as set forth on Schedule 2(a) attached hereto.


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         6. Covenants. Each Pledgor hereby covenants, that so long as any of the
Pledgor Obligations remain outstanding or any Credit Document or Hedging
Agreement is in effect or any Letter of Credit shall remain outstanding, and
until all of the Commitments shall have been terminated, such Pledgor shall:

                  (a) Books and Records. Mark its books and records (and shall
         cause the issuer of the Pledged Shares of such Pledgor to mark its
         books and records) to reflect the security interest granted to the
         Agent, for the benefit of the Lenders, pursuant to this Pledge
         Agreement.

                  (b) Defense of Title. Warrant and defend title to and
         ownership of the Pledged Collateral of such Pledgor at its own expense
         against the claims and demands of all other parties claiming an
         interest therein, keep the Pledged Collateral free from all Liens,
         except for Permitted Liens, and not sell, exchange, transfer, assign,
         lease or otherwise dispose of Pledged Collateral of such Pledgor or any
         interest therein, except as permitted under the Credit Agreement and
         the other Credit Documents.

                  (c) Further Assurances. Promptly execute and deliver at its
         expense all further instruments and documents and take all further
         action that may be necessary and desirable or that the Agent may
         reasonably request in order to (i) perfect and protect the security
         interest created hereby in the Pledged Collateral of such Pledgor
         (including without limitation any and all action necessary to satisfy
         the Agent that the Agent has obtained a first priority perfected
         security interest in any capital stock); (ii) enable the Agent to
         exercise and enforce its rights and remedies hereunder in respect of
         the Pledged Collateral of such Pledgor; and (iii) otherwise effect the
         purposes of this Pledge Agreement, including, without limitation and if
         requested by the Agent, delivering to the Agent irrevocable proxies in
         respect of the Pledged Collateral of such Pledgor.

                  (d) Amendments. Not allow to exist any restriction with
         respect to any of the Pledged Collateral of such Pledgor other than
         pursuant hereto or as may be permitted under the Credit Agreement.

                  (e) Compliance with Securities Laws. File all reports and
         other information now or hereafter required to be filed by such Pledgor
         with the United States Securities and Exchange Commission and any other
         state, federal or foreign agency in connection with the ownership of
         the Pledged Collateral of such Pledgor.

         7. Advances by Lenders. On failure of any Pledgor to perform any of the
covenants and agreements contained herein, the Agent may, at its sole option and
in its sole discretion, perform the same and in so doing may expend such sums as
the Agent may reasonably deem advisable in the performance thereof, including,
without limitation, the payment of any insurance premiums, the payment of any
taxes, a payment to obtain a release of a Lien or potential Lien, expenditures
made in defending against any adverse claim and all other expenditures which the
Agent or the Lenders may make for the protection of the security hereof or which
may be compelled to make by operation of law. All such sums and amounts so
expended shall be 



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repayable by the Pledgors on a joint and several basis promptly upon timely
notice thereof and demand therefor, shall constitute additional Pledgor
Obligations and shall bear interest from the date said amounts are expended at
the default rate specified in Section 3.1 of the Credit Agreement for Loans that
are Base Rate Loans. No such performance of any covenant or agreement by the
Agent or the Lenders on behalf of any Pledgor, and no such advance or
expenditure therefor, shall relieve the Pledgors of any default under the terms
of this Pledge Agreement, the other Credit Documents or any Hedging Agreement.
The Lenders may make any payment hereby authorized in accordance with any bill,
statement or estimate procured from the appropriate public office or holder of
the claim to be discharged without inquiry into the accuracy of such bill,
statement or estimate or into the validity of any tax assessment, sale,
forfeiture, tax lien, title or claim except to the extent such payment is being
contested in good faith by a Pledgor in appropriate proceedings and against
which adequate reserves are being maintained in accordance with GAAP.

         8. Events of Default. The occurrence of an event which under the Credit
Agreement would constitute an Event of Default shall be an Event of Default
hereunder (an "Event of Default").

         9. Remedies.

                  (a) General Remedies. Upon the occurrence of an Event of
         Default and during the continuation thereof, the Agent and the Lenders
         shall have, in respect of the Pledged Collateral of any Pledgor, in
         addition to the rights and remedies provided herein, in the Credit
         Documents, in the Hedging Agreements or by law, the rights and remedies
         of a secured party under the UCC or any other applicable law.

                  (b) Sale of Pledged Collateral. Upon the occurrence of an
         Event of Default and during the continuation thereof, without limiting
         the generality of this Section and without notice, the Agent may, in
         its sole discretion, sell or otherwise dispose of or realize upon the
         Pledged Collateral, or any part thereof, in one or more parcels, at
         public or private sale, at any exchange or broker's board or elsewhere,
         at such price or prices and on such other terms as the Agent may deem
         commercially reasonable, for cash, credit or for future delivery or
         otherwise in accordance with applicable law. To the extent permitted by
         law, any Lender may in such event, bid for the purchase of such
         securities. Each Pledgor agrees that, to the extent notice of sale
         shall be required by law and has not been waived by such Pledgor, any
         requirement of reasonable notice shall be met if notice, specifying the
         place of any public sale or the time after which any private sale is to
         be made, is personally served on or mailed, postage prepaid, to such
         Pledgor, in accordance with the notice provisions of Section 11.1 of
         the Credit Agreement at least 10 days before the time of such sale. The
         Agent shall not be obligated to make any sale of Pledged Collateral of
         such Pledgor regardless of notice of sale having been given. The Agent
         may adjourn any public or private sale from time to time by
         announcement at the time and place fixed therefor, and such sale may,
         without further notice, be made at the time and place to which it was
         so adjourned.



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                  (c) Private Sale. Upon the occurrence of an Event of Default
         and during the continuation thereof, the Pledgors recognize that the
         Agent may deem it impracticable to effect a public sale of all or any
         part of the Pledged Shares or any of the securities constituting
         Pledged Collateral and that the Agent may, therefore, determine to make
         one or more private sales of any such securities to a restricted group
         of purchasers who will be obligated to agree, among other things, to
         acquire such securities for their own account, for investment and not
         with a view to the distribution or resale thereof. Each Pledgor
         acknowledges that any such private sale may be at prices and on terms
         less favorable to the seller than the prices and other terms which
         might have been obtained at a public sale and, notwithstanding the
         foregoing, agrees that such private sale shall be deemed to have been
         made in a commercially reasonable manner and that the Agent shall have
         no obligation to delay sale of any such securities for the period of
         time necessary to permit the issuer of such securities to register such
         securities for public sale under the Securities Act of 1933. Each
         Pledgor further acknowledges and agrees that any offer to sell such
         securities which has been (i) publicly advertised on a bona fide basis
         in a newspaper or other publication of general circulation in the
         financial community of New York, New York (to the extent that such
         offer may be advertised without prior registration under the Securities
         Act of 1933), or (ii) made privately in the manner described above
         shall be deemed to involve a "public sale" under the UCC,
         notwithstanding that such sale may not constitute a "public offering"
         under the Securities Act of 1933, and the Agent may, in such event, bid
         for the purchase of such securities.

                  (d) Retention of Pledged Collateral. In addition to the rights
         and remedies hereunder, upon the occurrence of an Event of Default, the
         Agent may, after providing the notices required by Section 9-505(2) of
         the UCC or otherwise complying with the requirements of applicable law
         of the relevant jurisdiction, retain all or any portion of the Pledged
         Collateral in satisfaction of the Pledgor Obligations. Unless and until
         the Agent shall have provided such notices, however, the Agent shall
         not be deemed to have retained any Pledged Collateral in satisfaction
         of any Pledgor Obligations for any reason.

                  (e) Deficiency. In the event that the proceeds of any sale,
         collection or realization are insufficient to pay all amounts to which
         the Agent or the Lenders are legally entitled, the Pledgors shall be
         jointly and severally liable for the deficiency, together with interest
         thereon at the default rate specified in Section 3.1 of the Credit
         Agreement for Loans that are Base Rate Loans, together with the costs
         of collection and the reasonable fees of any attorneys employed by the
         Agent to collect such deficiency. Any surplus remaining after the full
         payment and satisfaction of the Pledgor Obligations shall be returned
         to the Pledgors or to whomsoever a court of competent jurisdiction
         shall determine to be entitled thereto.

         10. Rights of the Agent.

                  (a) Power of Attorney. In addition to other powers of attorney
         contained herein, each Pledgor hereby designates and appoints the
         Agent, on behalf of the Lenders, and each of its designees or agents as
         attorney-in-fact of such Pledgor, irrevocably and



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         with power of substitution, with authority to take any or all of the
         following actions upon the occurrence and during the continuance of an
         Event of Default:

                           (i)    to demand, collect, settle, compromise, adjust
                  and give discharges and releases concerning the Pledged
                  Collateral of such Pledgor, all as the Agent may reasonably
                  determine;

                           (ii)   to commence and prosecute any actions at any
                  court for the purposes of collecting any of the Pledged
                  Collateral of such Pledgor and enforcing any other right in
                  respect thereof;

                           (iii)  to defend, settle or compromise any action
                  brought and, in connection therewith, give such discharge or
                  release as the Agent may deem reasonably appropriate;

                           (iv)   to pay or discharge taxes, liens, security
                  interests, or other encumbrances levied or placed on or
                  threatened against the Pledged Collateral of such Pledgor;

                           (v)    to direct any parties liable for any payment
                  under any of the Pledged Collateral to make payment of any and
                  all monies due and to become due thereunder directly to the
                  Agent or as the Agent shall direct;

                           (vi)   to receive payment of and receipt for any and
                  all monies, claims, and other amounts due and to become due at
                  any time in respect of or arising out of any Pledged
                  Collateral of such Pledgor;

                           (vii)  to sign and endorse any drafts, assignments,
                  proxies, stock powers, verifications, notices and other
                  documents relating to the Pledged Collateral of such Pledgor;

                           (viii) to settle, compromise or adjust any suit,
                  action or proceeding described above and, in connection
                  therewith, to give such discharges or releases as the Agent
                  may deem reasonably appropriate;

                           (ix)   execute and deliver all assignments,
                  conveyances, statements, financing statements, renewal
                  financing statements, pledge agreements, affidavits, notices
                  and other agreements, instruments and documents that the Agent
                  may determine necessary in order to perfect and maintain the
                  security interests and liens granted in this Pledge Agreement
                  and in order to fully consummate all of the transactions
                  contemplated therein;

                           (x)    to exchange any of the Pledged Collateral of
                  such Pledgor or other property upon any merger, consolidation,
                  reorganization, recapitalization or other readjustment of the
                  issuer thereof and, in connection therewith, deposit


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                  any of the Pledged Collateral of such Pledgor with any
                  committee, depository, transfer agent, registrar or other
                  designated agency upon such terms as the Agent may determine;

                           (xi)  to vote for a shareholder resolution, or to
                  sign an instrument in writing, sanctioning the transfer of any
                  or all of the Pledged Shares of such Pledgor into the name of
                  the Agent or one or more of the Lenders or into the name of
                  any transferee to whom the Pledged Shares of such Pledgor or
                  any part thereof may be sold pursuant to Section 10 hereof;
                  and

                           (xii) to do and perform all such other acts and
                  things as the Agent may reasonably deem to be necessary,
                  proper or convenient in connection with the Pledged Collateral
                  of such Pledgor.

         This power of attorney is a power coupled with an interest and shall be
         irrevocable (i) for so long as any of the Pledgor Obligations remain
         outstanding, any Credit Document or any Hedging Agreement is in effect
         or any Letter of Credit shall remain outstanding and (ii) until all of
         the Commitments shall have been terminated. The Agent shall be under no
         duty to exercise or withhold the exercise of any of the rights, powers,
         privileges and options expressly or implicitly granted to the Agent in
         this Pledge Agreement, and shall not be liable for any failure to do so
         or any delay in doing so. The Agent shall not be liable for any act or
         omission or for any error of judgment or any mistake of fact or law in
         its individual capacity or its capacity as attorney-in-fact except acts
         or omissions resulting from its gross negligence or willful misconduct.
         This power of attorney is conferred on the Agent solely to protect,
         preserve and realize upon its security interest in Pledged Collateral.

                  (b) Performance by the Agent of Pledgor's Obligations. If any
         Pledgor fails to perform any agreement or obligation contained herein,
         upon prior written notice to such Pledgor, the Agent itself may
         reasonably perform, or cause performance of, such agreement or
         obligation, and the reasonable expenses of the Agent incurred in
         connection therewith shall be payable by the Pledgors on a joint and
         several basis pursuant to Section 13 hereof.

                  (c) Assignment by the Agent. The Agent may from time to time
         assign the Pledgor Obligations and any portion thereof and/or the
         Pledged Collateral and any portion thereof, and the assignee shall be
         entitled to all of the rights and remedies of the Agent under this
         Pledge Agreement in relation thereto.

                  (d) The Agent's Duty of Care. Other than the exercise of
         reasonable care to assure the safe custody of the Pledged Collateral
         while being held by the Agent hereunder, the Agent shall have no duty
         or liability to preserve rights pertaining thereto, it being understood
         and agreed that Pledgors shall be responsible for preservation of all
         rights in the Pledged Collateral of such Pledgor, and the Agent shall
         be relieved of all responsibility for Pledged Collateral upon
         surrendering it or tendering the surrender of it to the



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         Pledgors. The Agent shall be deemed to have exercised reasonable care
         in the custody and preservation of the Pledged Collateral in its
         possession if such Pledged Collateral is accorded treatment
         substantially equal to that which the Agent accords its own property,
         which shall be no less than the treatment employed by a reasonable and
         prudent agent in the industry, it being understood that the Agent shall
         not have responsibility for (i) ascertaining or taking action with
         respect to calls, conversions, exchanges, maturities, tenders or other
         matters relating to any Pledged Collateral, whether or not the Agent
         has or is deemed to have knowledge of such matters; or (ii) taking any
         necessary steps to preserve rights against any parties with respect to
         any Pledged Collateral.

                  (e) Voting Rights in Respect of the Pledged Collateral.

                           (i)  So long as no Event of Default shall have
                  occurred and be continuing, to the extent permitted by law,
                  each Pledgor may exercise any and all voting and other
                  consensual rights pertaining to the Pledged Collateral of such
                  Pledgor or any part thereof for any purpose not inconsistent
                  with the terms of this Pledge Agreement or the Credit
                  Agreement; and

                           (ii) Upon the occurrence and during the continuance
                  of an Event of Default, all rights of a Pledgor to exercise
                  the voting and other consensual rights which it would
                  otherwise be entitled to exercise pursuant to paragraph (i) of
                  this Section shall cease and all such rights shall thereupon
                  become vested in the Agent which shall then have the sole
                  right to exercise such voting and other consensual rights.

                  (f) Dividend Rights in Respect of the Pledged Collateral.

                           (i)  So long as no Event of Default shall have
                  occurred and be continuing and subject to Section 4(b) hereof,
                  each Pledgor may receive and retain any and all dividends
                  (other than stock dividends and other dividends constituting
                  Pledged Collateral which are addressed hereinabove) or
                  interest paid in respect of the Pledged Collateral to the
                  extent they are allowed under the Credit Agreement.

                           (ii) Upon the occurrence and during the continuance
                  of an Event of Default:

                                    (A) all rights of a Pledgor to receive the
                           dividends and interest payments which it would
                           otherwise be authorized to receive and retain
                           pursuant to paragraph (i) of this Section shall cease
                           and all such rights shall thereupon be vested in the
                           Agent which shall then have the sole right to receive
                           and hold as Pledged Collateral such dividends and
                           interest payments; and

                                    (B) all dividends and interest payments
                           which are received by a Pledgor contrary to the
                           provisions of paragraph (A) of this Section shall be



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                           received in trust for the benefit of the Agent, shall
                           be segregated from other property or funds of such
                           Pledgor, and shall be forthwith paid over to the
                           Agent as Pledged Collateral in the exact form
                           received, to be held by the Agent as Pledged
                           Collateral and as further collateral security for the
                           Pledgor Obligations.

                  (g) Release of Pledged Collateral. The Agent may release any
         of the Pledged Collateral from this Pledge Agreement or may substitute
         any of the Pledged Collateral for other Pledged Collateral without
         altering, varying or diminishing in any way the force, effect, lien,
         pledge or security interest of this Pledge Agreement as to any Pledged
         Collateral not expressly released or substituted, and this Pledge
         Agreement shall continue as a first priority lien on all Pledged
         Collateral not expressly released or substituted.

         11. Rights of Required Lenders. All rights of the Agent hereunder, if
not exercised by the Agent, may be exercised by the Required Lenders.

         12. Application of Proceeds. Upon the occurrence and during the
continuance of an Event of Default, any payments in respect of the Pledgor
Obligations and any proceeds of any Pledged Collateral, when received by the
Agent or any of the Lenders in cash or its equivalent, will be applied in
reduction of the Pledgor Obligations in the order set forth in Section 3.15(b)
of the Credit Agreement, and each Pledgor irrevocably waives the right to direct
the application of such payments and proceeds and acknowledges and agrees that
the Agent shall have the continuing and exclusive right to apply and reapply any
and all such payments and proceeds in the Agent's sole discretion,
notwithstanding any entry to the contrary upon any of its books and records.

         13. Costs of Counsel. At all times hereafter, the Pledgors agree to
promptly pay upon demand any and all reasonable costs and expenses of the Agent
or the Lenders, (a) as required under Section 11.5 of the Credit Agreement and
(b) as reasonably necessary to protect the Pledged Collateral or to reasonably
exercise any rights or remedies under this Pledge Agreement or with respect to
any Pledged Collateral. All of the foregoing costs and expenses shall constitute
Pledgor Obligations hereunder.

         14. Continuing Agreement.

                  (a) This Pledge Agreement shall be a continuing agreement in
         every respect and shall remain in full force and effect so long as any
         of the Pledgor Obligations remain outstanding or any Credit Document or
         Hedging Agreement is in effect or any Letter of Credit shall remain
         outstanding, and until all of the Commitments thereunder shall have
         terminated (other than any obligations with respect to the indemnities
         and the representations and warranties set forth in the Credit
         Documents). Upon such payment and termination, this Pledge Agreement
         shall be automatically terminated and the Agent and the Lenders shall,
         upon the request and at the expense of the Pledgors, forthwith release
         all of its liens and security interests hereunder and shall executed
         and deliver all UCC termination statements and/or other documents
         reasonably requested by the Pledgors 


                                     - 11 -
   12

         evidencing such termination. Notwithstanding the foregoing all releases
         and indemnities provided hereunder shall survive termination of this
         Pledge Agreement.

                  (b) This Pledge Agreement shall continue to be effective or be
         automatically reinstated, as the case may be, if at any time payment,
         in whole or in part, of any of the Pledgor Obligations is rescinded or
         must otherwise be restored or returned by the Agent or any Lender as a
         preference, fraudulent conveyance or otherwise under any bankruptcy,
         insolvency or similar law, all as though such payment had not been
         made; provided that in the event payment of all or any part of the
         Pledgor Obligations is rescinded or must be restored or returned, all
         reasonable costs and expenses (including without limitation any
         reasonable legal fees and disbursements) incurred by the Agent or any
         Lender in defending and enforcing such reinstatement shall be deemed to
         be included as a part of the Pledgor Obligations.

         15. Amendments; Waivers; Modifications. This Pledge Agreement and the
provisions hereof may not be amended, waived, modified, changed, discharged or
terminated except as set forth in Section 11.6 of the Credit Agreement.

         16. Successors in Interest. This Pledge Agreement shall create a
continuing security interest in the Collateral and shall be binding upon each
Pledgor, its successors and assigns and shall inure, together with the rights
and remedies of the Agent and the Lenders hereunder, to the benefit of the Agent
and the Lenders and their successors and permitted assigns; provided, however,
that none of the Pledgors may assign its rights or delegate its duties hereunder
without the prior written consent of each Lender or the Required Lenders, as
required by the Credit Agreement. To the fullest extent permitted by law, each
Pledgor hereby releases the Agent and each Lender, and its successors and
assigns, from any liability for any act or omission relating to this Pledge
Agreement or the Collateral, except for any liability arising from the gross
negligence or willful misconduct of the Agent, or such Lender, or its officers,
employees or agents.

         17. Notices. All notices required or permitted to be given under this
Pledge Agreement shall be in conformance with Section 11.1 of the Credit
Agreement.

         18. Counterparts. This Pledge Agreement may be executed in any number
of counterparts, each of which where so executed and delivered shall be an
original, but all of which shall constitute one and the same instrument. It
shall not be necessary in making proof of this Pledge Agreement to produce or
account for more than one such counterpart.

         19. Headings. The headings of the sections and subsections hereof are
provided for convenience only and shall not in any way affect the meaning or
construction of any provision of this Pledge Agreement.



                                     - 12 -
   13

         20. Governing Law; Submission to Jurisdiction; Venue.

                  (a) THIS PLEDGE AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF
         THE PARTIES HEREUNDER SHALL BE GOVERNED BY AND CONSTRUED AND
         INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NORTH CAROLINA.
         Any legal action or proceeding with respect to this Security Agreement
         may be brought in the courts of the State of North Carolina, or of the
         United States for the Western District of North Carolina, and, by
         execution and delivery of this Security Agreement, each Pledgor hereby
         irrevocably accepts for itself and in respect of its property,
         generally and unconditionally, the jurisdiction of such courts. Each
         Pledgor further irrevocably consents to the service of process out of
         any of the aforementioned courts in any such action or proceeding by
         the mailing of copies thereof by registered or certified mail, postage
         prepaid, to it at the address for notices pursuant to Section 11.1 of
         the Credit Agreement, such service to become effective 30 days after
         such mailing. Nothing herein shall affect the right of the Agent to
         serve process in any other manner permitted by law or to commence legal
         proceedings or to otherwise proceed against any Pledgor in any other
         jurisdiction.

                  (b) Each Pledgor hereby irrevocably waives any objection which
         it may now or hereafter have to the laying of venue of any of the
         aforesaid actions or proceedings arising out of or in connection with
         this Pledge Agreement brought in the courts referred to in subsection
         (a) hereof and hereby further irrevocably waives and agrees not to
         plead or claim in any such court that any such action or proceeding
         brought in any such court has been brought in an inconvenient forum.

         21. Waiver of Jury Trial. TO THE EXTENT PERMITTED BY APPLICABLE LAW,
EACH OF THE PARTIES TO THIS PLEDGE AGREEMENT HEREBY IRREVOCABLY WAIVES ALL RIGHT
TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR
RELATING TO THIS PLEDGE AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

         22. Severability. If any provision of any of the Pledge Agreement is
determined to be illegal, invalid or unenforceable, such provision shall be
fully severable and the remaining provisions shall remain in full force and
effect and shall be construed without giving effect to the illegal, invalid or
unenforceable provisions.

         23. Entirety. This Pledge Agreement, the other Credit Documents and the
Hedging Agreements represent the entire agreement of the parties hereto and
thereto, and supersede all prior agreements and understandings, oral or written,
if any, including any commitment letters or correspondence relating to the
Credit Documents, the Hedging Agreements or the transactions contemplated herein
and therein.

         24. Survival. All representations and warranties of the Pledgors
hereunder shall survive the execution and delivery of this Pledge Agreement, the
other Credit Documents and the 



                                     - 13 -
   14

Hedging Agreements, the delivery of the Notes and the making of the Loans and
the issuance of the Letters of Credit under the Credit Agreement.

         25. Other Security. To the extent that any of the Pledgor Obligations
are now or hereafter secured by property other than the Pledged Collateral
(including, without limitation, real and other personal property owned by a
Pledgor), or by a guarantee, endorsement or property of any other Person, then
the Agent and the Lenders shall have the right to proceed against such other
property, guarantee or endorsement upon the occurrence of and during the
contiuation of any Event of Default, and the Agent and the Lenders have the
right, in their sole discretion, to determine which rights, security, liens,
security interests or remedies the Agent and the Lenders shall at any time
pursue, relinquish, subordinate, modify or take with respect thereto, without in
any way modifying or affecting any of them or any of the Agent's and the
Lenders' rights or the Pledgor Obligations under this Pledge Agreement, under
any other of the Credit Documents or under any Hedging Agreement.

         26. Joint and Several Obligations of Pledgors.

                  (a) Each of the Pledgors is accepting joint and several
         liability hereunder in consideration of the financial accommodation to
         be provided by the Lenders under the Credit Agreement, for the mutual
         benefit, directly and indirectly, of each of the Pledgors and in
         consideration of the undertakings of each of the Pledgors to accept
         joint and several liability for the obligations of each of them.

                  (b) Each of the Pledgors jointly and severally hereby
         irrevocably and unconditionally accepts, not merely as a surety but
         also as a co-debtor, joint and several liability with the other
         Pledgors with respect to the payment and performance of all of the
         Pledgor Obligations arising under this Pledge Agreement, the other
         Credit Documents and the Hedging Agreements, it being the intention of
         the parties hereto that all the Pledgor Obligations shall be the joint
         and several obligations of each of the Pledgors without preferences or
         distinction among them.

                  (c) Notwithstanding any provision to the contrary contained
         herein or in any other of the Credit Documents, to the extent the
         obligations of a Guarantor shall be adjudicated to be invalid or
         unenforceable for any reason (including, without limitation, because of
         any applicable state or federal law relating to fraudulent conveyances
         or transfers) then the obligations of each Guarantor hereunder shall be
         limited to the maximum amount that is permissible under applicable law
         (whether federal or state and including, without limitation, the
         Bankruptcy Code).


                  [remainder of page intentionally left blank]



                                     - 14 -
   15


         Each of the parties hereto has caused a counterpart of this Pledge
Agreement to be duly executed and delivered as of the date first above written.


BORROWER:                           SIMCALA, INC.,
                                    a Delaware corporation

                                    By:    /s/ C.E. Boardwine
                                       -----------------------------------------
                                    Name:  C. E. Boardwine
                                    Title: President and Chief Executive Officer


GUARANTORS:                         SIMCALA HOLDINGS, INC.,
                                    a Georgia corporation

                                    By:    /s/ William A. Davies
                                       -----------------------------------------
                                    Name:  William A. Davies
                                    Title: Secretary, Treasurer


         Accepted and agreed to in Charlotte, North Carolina as of the date
first above written.

                                    NATIONSBANK, N.A., as Agent


                                    By:    /s/ Michael D. McKay
                                       -----------------------------------------
                                    Name:  Michael D. McKay
                                    Title: Senior Vice President



   16


                                  Schedule 2(a)

                                       to

                                Pledge Agreement

                           dated as of March 31, 1998

                          in favor of NationsBank, N.A.

                                    as Agent

                                  PLEDGED STOCK

PLEDGOR:  SIMCALA HOLDINGS, INC.



Name of Subsidiary         Number of Shares       Certificate Number       Percentage Ownership
- ------------------         ----------------       ------------------       --------------------
                                                                   
Simcala, Inc.                   10,889                                             100%


PLEDGOR: SIMCALA, INC.



Name of Subsidiary         Number of Shares       Certificate Number       Percentage Ownership
- ------------------         ----------------       ------------------       --------------------
                                                                   
 none





   17


                                  Exhibit 4(a)

                                       to

                                Pledge Agreement

                           dated as of March 31, 1998

                          in favor of NationsBank, N.A.

                                    as Agent


                             Irrevocable Stock Power


   FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers to



the following shares of capital stock of _____________________, a ____________ 
corporation:



                  No. of Shares              Certificate No.
                  -------------              ---------------
                                              





and irrevocably appoints __________________________________ its agent and
attorney-in-fact to transfer all or any part of such capital stock and to take
all necessary and appropriate action to effect any such transfer. The agent and
attorney-in-fact may substitute and appoint one or more persons to act for him.
The effectiveness of a transfer pursuant to this stock power shall be subject to
any and all transfer restrictions referenced on the face of the certificates
evidencing such interest or in the certificate of incorporation or bylaws of the
subject corporation, to the extent they may from time to time exist.

                                    ---------------,
                                    a ______________ corporation

                                    By:
                                       -------------------------------------
                                    Name:
                                         -----------------------------------
                                    Title:
                                          ----------------------------------