AMENDMENT NO. 1

                                    TO

                 LLC INTEREST SALE AND PURCHASE AGREEMENT



       AMENDMENT  NO.  1  TO  LLC  INTEREST  SALE  AND  PURCHASE  AGREEMENT
("Amendment No. 1") dated as of September 30, 1998 among OWENS  CORNING,  a
Delaware  corporation ("Seller"), ADVANCED GLASSFIBER YARNS LLC  (formerly,
Lincoln  Yarns, LLC), a Delaware limited liability company (the "Company"),
and AGY HOLDINGS, INC., a Delaware corporation ("Buyer").

                            W I T N E S S E T H

      WHEREAS, Seller, the Company and Glass Holdings, Inc. entered into  a
LLC  Interest Sale and Purchase Agreement dated as of July 31, 1998 (the  "
Purchase  Agreement"),  which  Purchase Agreement  was  assigned  by  Glass
Holdings,  Inc.  to Buyer by an Assignment and Assumption  Agreement  dated
September 30, 1998; and

      WHEREAS,  Seller,  the  Company and  Buyer  desire  to  make  certain
amendments to the Purchase Agreement, all as set forth below;

      NOW  THEREFORE, for good and valuable consideration, the receipt  and
sufficiency of which are hereby acknowledged, the parties agree as follows:

1.    Defined  Terms.   Except  as  otherwise  expressly  provided  herein,
capitalized terms used herein which are defined in the Purchase  Agreement,
as  amended hereby, shall have the meanings specified for such terms in the
Purchase Agreement, as so amended.

2.   Amendments to Purchase Agreement.

     (a)  Section 1.2 of the Purchase Agreement shall be amended to read as
follows:

          "The  aggregate  purchase price for the Buyer  Interest
          shall  be three hundred thirty one million five hundred
          thousand   Dollars  ($331,500,000)  in  the  aggregate,
          subject  to adjustment as provided in Section 1.4  (the
          "Purchase Price")."

      (b)   Section 1.4 of the Purchase Agreement is hereby amended to read
as follows:

          "1.4 Cash Payment for Change in Net Asset Value.
          (a)   Calculation of the Cash Payment.  The Company shall make  a





          cash  payment (the "NAV Payment") in the amount by which the  Net
          Asset  Value of the Company as of the Closing Date (the  "Closing
          NAV"), as finally determined pursuant to Section 1.4(d) below, is
          greater  or  less  than thirty one million seven  hundred  thirty
          eight  thousand  dollars  ($31,738,000)(the  "Base  NAV").    The
          calculation of the Base NAV is set forth on Schedule 1.4(a).   If
          the  Closing  NAV is greater than the Base NAV, then the  Company
          shall   make   the  NAV  Payment  to  Jefferson  Holdings,   Inc.
          ("Jefferson").   If the Closing NAV is less than  the  Base  NAV,
          then  the Company shall make the NAV Payment to Buyer.  Such  NAV
          Payment  shall  be paid as set forth in Sections 1.4(b)  and  (e)
          below.
          
          (b)   Estimated  Adjustment.  On the Closing Date,  Seller  shall
          deliver  to Buyer a statement (the "Estimated Closing Statement")
          prepared in accordance with GAAP setting forth a calculation of
          Seller's  good faith estimate of the Closing NAV (the  "Estimated
          Closing NAV").  If the Estimated Closing NAV as set forth on  the
          Estimated  Closing Statement is in excess of the  Base  NAV,  the
          Company  shall make the NAV Payment to Jefferson at Closing.   If
          the  Estimated Closing NAV as set forth on the Estimated  Closing
          Statement is less than the Base NAV, then the Company shall  make
          the NAV Payment to Buyer at Closing.

          (c)   Closing  NAV.  Within ninety (90) days after  the  Closing,
          Seller  will prepare and deliver to Buyer a balance sheet of  the
          Company  as of the Closing Date prepared in accordance with  GAAP
          together  with  a  statement setting forth a calculation  of  the
          Closing  NAV  (the "Closing Statement").  At the  option  of  the
          Buyer, exercisable in writing on or before the Closing Date,  the
          Closing Statement shall be audited by PricewaterhouseCoopers LLP.
          The  cost  of  such audit shall be borne by the  Company.   Buyer
          shall  cooperate  fully and shall cause the  Company  to  provide
          Seller  with  all  assistance and access  to  books  and  records
          necessary  for  Seller  to  prepare the  Closing  Statement.   In
          connection  therewith, Buyer and Seller will  jointly  conduct  a
          physical  inventory of the Inventory as of the  Closing  Date  in
          accordance with the procedures to be mutually agreed by Buyer and
          Seller  acting  reasonably  and in good  faith  and,  at  Buyer's
          option,  such  physical  inventory will be  observed  by  Buyer's
          auditors,  PricewaterhouseCoopers LLP, and, at  Seller's  option,
          such  physical  inventory will be observed by Seller's  auditors,
          Arthur Andersen LLP.

          (d)  Closing Calculation.

                (i)  Buyer shall be entitled to full access to the relevant
          records  and  working papers prepared by or for  Seller,  and  to
          Seller's  employees involved in such preparation, to aid  in  its
          review  of  the calculation of the Closing NAV set forth  on  the
          Closing  Statement.   If  Buyer believes  that  the  Closing  NAV
          calculation (hereinafter the "Closing Calculation") has not  been
          properly   calculated   in  accordance   with   the   calculation
          methodologies  set forth in this Section 1.4,  it  shall,  within





          thirty  (30) days after receipt of the Closing Calculation,  give
          written notice (the "Buyer's Objection") to Seller, setting forth
          the  basis of the Buyer's Objection in reasonable detail and,  to
          the   extent   practicable,  the  adjustments  to   the   Closing
          Calculation which Buyer believes should be made.  Failure  to  so
          notify Seller within such thirty (30) day period shall constitute
          acceptance and approval of the Closing Calculation.  There  shall
          be no adjustment to the Closing Calculation unless the cumulative
          amount of Buyer's Objection equals or exceeds one million dollars
          ($1,000,000.00)  and  provided  that  any  individual   item   of
          adjustment  contained in Buyer's Objection  which  is  less  than
          fifty  thousand  dollars ($50,000.00) shall be  excluded  in  its
          entirety.  If Seller agrees that any change proposed by Buyer  is
          appropriate, the change shall be made to the Closing Calculation,
          whereupon Buyer shall be deemed to have accepted and approved the
          Closing Calculation with respect to such change and any other non-
          disputed item of the Closing Calculation.  If the proposed change
          is  disputed by Seller, then Seller and Buyer shall negotiate  in
          good  faith to resolve such dispute as expeditiously as possible.
          If,  after  a  period of thirty (30) days following the  date  on
          which Buyer gives Seller notice of any such proposed change,  any
          such proposed change still remains disputed, then:

                (ii)  KPMG Peat Marwick LLP (the "Neutral Accounting Firm")
          shall be  engaged to resolve any remaining disputes.  The Neutral
          Accounting  Firm  shall act as an arbitrator to determine,  based
          solely on presentations submitted by Seller and Buyer, and not by
          independent review, only those issues still in dispute.  Each  of
          Buyer and Seller shall have made its complete submission  to  the 
          Neutral Accounting  Firm  within  ten  (10)  days  following  the  
          expiration  of the thirty  (30) day negotiation  period described  
          in Section 1.4(d)(i).  The failure  by  either  party  to  make a 
          complete submission prior to the expiration  of such ten (10) day 
          period shall be deemed a waiver of such party's  right  to make a 
          submission or a further submission to the Neutral Accounting Firm.   
          The Neutral  Accounting  Firm's  determination,  based  upon  the  
          calculation methodologies  set  forth  in this Section 1.4, shall 
          be made within thirty (30) days following  the date  on which the 
          dispute is submitted, shall be set forth in  a written  statement 
          delivered to Seller and Buyer,  and  shall  be final, binding and 
          conclusive.  The fees and any expenses of the Neutral  Accounting 
          Firm shall be shared equally by Seller and Buyer.  In the event a 
          party does not comply with the procedure  and  time  requirements 
          contained  herein,  the  Neutral  Accounting  Firm shall render a 
          decision  based  solely  on  the evidence it has which was timely 
          filed by either of the parties.

          (e)   Payment of Cash NAV Payment.  If the Closing NAV  shown  on
          the Closing Statement exceeds the Estimated Closing NAV, then the
          Company  shall  make  the NAV Payment to Jefferson,  and  if  the
          Closing  NAV  shown on the Closing Statement  is  less  than  the
          Estimated  Closing  NAV,  then the Company  shall  make  the  NAV
          Payment  to  Buyer. Payment of any NAV Payment pursuant  to  this
          Section  1.4(e)  shall  be made by wire transfer  to  an  account





          designated by Jefferson or Buyer, as the case may be,  in  United
          States  Dollars,  in immediately available federal  funds  within
          three  (3) business days after the Closing Calculation  has  been
          finally  determined together with interest from the Closing  Date
          to  the  date of payment at the "base rate" of Citibank, N.A.  or
          any  successor  thereto in New York, New York in  effect  on  the
          Closing Date, based on a 360-day year."

      (c)   Schedule 1.4(a) of the Purchase Agreement is hereby amended  to
read as set forth on Exhibit A hereto.

      (d)  Section 2.20 of the Purchase Agreement is hereby amended to read
as follows:

          "Section 2.20  Disclaimer of Warranty.

          SELLER MAKES NO WARRANTY WITH RESPECT TO THE VALUE, CONDITION OR,
          SUBJECT TO SECTION 2.19, USE OF THE ASSETS OWNED OR USED  BY  THE
          COMPANY,   WHETHER  EXPRESSED  OR  IMPLIED,  INCLUDING,   WITHOUT
          LIMITATION,  ANY IMPLIED WARRANTY OF MERCHANTABILITY  OR  FITNESS
          FOR A PARTICULAR PURPOSE."

      (e)   Section  4.20  of the Purchase Agreement is hereby  amended  to
insert  the  words  "to   execute and deliver" after the  words  "Jefferson
Holdings, Inc." in the first line.

      (f)  Section 4.29 of the Purchase Agreement is hereby amended to read
as follows:

          "4.29        Purchase   of   Assets    from    Seller's
          Subsidiaries.   The parties acknowledge that,  pursuant
          to agreements dated September 29, 1998, the Company has
          purchased certain assets from, and has assumed  certain
          liabilities  of, Owens-Corning (Japan)  Ltd.,  OCC  and
          NVOC (the "Subsidiary Asset Purchase Agreements").  The
          parties  agree  that to the extent that  there  is  any
          adjustment  to the Purchase Price pursuant  to  Section
          2(b)   of   each  of  the  Subsidiary  Asset   Purchase
          Agreements,  any payment required to  be  paid  by  the
          Company shall be paid  by the  Seller, and  any  amount 
          required to be paid to the Company shall be paid to the 
          Seller."

      (g)   Section 4.34(i) of the Purchase Agreement is hereby amended  to
read as follows:

          "(i)  Stock Options.  Each outstanding option to purchase  Seller
          common stock held by Transferred Employees shall vest immediately
          upon  the  Closing and expire on the earlier of (a) December  31,
          1999 or (b) the date on which the option expires by the terms  of
          the  applicable option contract.  The Company agrees to indemnify
          Seller  for  any  costs or other damages incurred  by  Seller  in
          connection  with  the extension of any option beyond  six  months
          following the Closing."
      (h) Section 4.38 of the Purchase Agreement is hereby amended to read
          as follows:




          "4.38     Post-Closing Distributions by the Company.

                Immediately upon the Closing, the parties shall  cause  the
          Company  to,  and the Company shall, make a cash distribution  in
          the  aggregate  amount  of three hundred ninety  million  Dollars
          ($390,000,000) to its members, pro rata in accordance with  their
          then  respective  ownership interests in the Company,  and  Buyer
          shall  have  caused the Company to obtain any and  all  financing
          necessary   to   fund  such   cash  distribution  (the   "Company
          Financing") in accordance with the terms and conditions set forth
          in  the  Commitments.  In addition, the parties shall  cause  the
          Company  to,  and  the Company shall, make  the  NAV  Payment  in
          accordance  with and in the form and manner described in  Section
          1.4 of this Amendment No. 1."

      (i)  Schedule 7.1 of the Purchase Agreement is hereby amended to read
as set forth on Exhibit B hereto.

      (j)  Section 10.10(a) of the Purchase Agreement is hereby amended  to
revise  the definitions of "Material Adverse Effect" and "Net Asset  Value"
to read as follows:

           "  "Material Adverse Effect" has the meaning ascribed to  it  in
Section 2.2.

          "Net Asset Value" means the sum of Total Current Assets
          less  Current Liabilities as reflected in the Pro Forma
          Statement  of Net Assets to be sold as of 12/31/97  but
          excluding Trade Payables (which shall be paid  in  full
          immediately  prior  to  the Closing  Date),  with  such
          amounts  determined in accordance with GAAP  using  the
          same  assumptions reflected in the 12/31/97  Historical
          Financial Statements and methodology in calculating the
          Base NAV as set forth in Schedule 1.4(a)."

      (k)  Section 10.10(a) of the Purchase Agreement  is hereby amended to
add the following new definitions in appropriate alphabetical order:

          " "Jefferson" has the meaning ascribed to it in Section 1.4(a).

           "NAV  Distribution" has the meaning ascribed to  it  in  Section
1.4(a).

          "Subsidiary Asset Purchase Agreement" has the meaning ascribed to
          it in Section 4.29."





      (l)  Section 10.10(a) of the Purchase Agreement is hereby amended  to
delete  the  following  definitions:  "NVOC Assets," "NVOC  Asset  Purchase
Agreement," "OCC Assets" and "OCC Asset Purchase Agreement."

     (m)  The Purchase Agreement is hereby amended to delete Exhibits V and
W therefrom.

3.   Condition to Effectiveness of Amendment No. 1.

      The  amendments contained in this Amendment No. 1 are subject to  and
conditioned upon the Closing occurring on or before September 30, 1998.

4.   Representations and Warranties.

     (a)  Seller represents and warrants to Buyer that:

           (i)  Each of Seller and the Company has the corporate power  and
authority to execute and deliver this Amendment No. 1.

           (ii)  This  Amendment  No.  1 is the legal,  valid  and  binding
obligation  of Seller and the Company enforceable against each of  them  in
accordance with the terms hereof.

     (b)  Buyer represents and warrants to Seller that:

           (i)  Buyer has the corporate power and authority to execute  and
deliver this Amendment No. 1.

           (ii)  This  Amendment  No.  1 is the legal,  valid  and  binding
obligation  of  Buyer enforceable against it in accordance with  the  terms
hereof.

5.   Miscellaneous.

      (a)  Amendment to Purchase Agreement.  This Amendment No. 1 shall  be
construed, administered and applied in accordance with all of the terms and
provisions of the Purchase Agreement.

      (b)  Successors and Assigns.  This Amendment No. 1 shall inure to the
benefit  of  and  be  binding on the parties hereto  and  their  respective
successors and permitted assigns.

      (c)   Effect of Amendment No. 1.  The amendments hereunder  shall  be
limited  precisely  as  written  and  shall  not  constitute  a  waiver  or
modification  of any other covenants, terms or provisions of  the  Purchase
Agreement, which shall remain in full force and effect.

      (d)   Amendment;  Waiver.   This Amendment  No.  1  may  be  amended,
supplemented or otherwise modified only by a written instrument executed by
the  parties  hereto.  No waiver by either party of any of  the  provisions
hereof  shall  be  effective unless explicitly set  forth  in  writing  and
executed by the party so waiving.






      (e)   Governing Law. This Amendment No. 1 shall be governed  by,  and
construed  in accordance with, the laws of the state of New York applicable
to a contract executed and performed in such State without giving effect to
the  conflicts  of  laws  principles thereof, except  that  matters  herein
strictly within the purview of the matters covered by the Limited Liability
Company  Act  of  the State of Delaware shall be governed by  such  Limited
Liability Company Act.

      (f)   Counterparts.    This Amendment No. 1 may be  executed  by  the
parties hereto in separate counterparts, each of which when so executed and
delivered  shall be an original, but all such counterparts  shall  together
constitute  one and the same agreement, and all signatures need not  appear
on any one counterpart.





     IN WITNESS WHEREOF, the parties have caused this Amendment No. 1 to be
duly executed as of the date first above written.



                              OWENS CORNING

                              By: /s/ Charles E. Dana
                                    Name:  Charles E. Dana
                                    Title: Vice President


                              GLASS HOLDINGS CORP.


                              By: /s/ Robert Porcher
                                     Name:  Robert Porcher
                                     Title: President


                              ADVANCED GLASSFIBER YARNS LLC
                              By: Owens Corning, Member


                              By: /s/ Charles E. Dana
                                    Name:  Charles E. Dana
                                    Title: Vice President