TWELFTH AMENDMENT TO LOAN AGREEMENT

         THIS TWELFTH AMENDMENT TO LOAN AGREEMENT (this "Amendment") is made and
entered into effective as of January 5, 2004, by and among LMI AEROSPACE,  INC.,
formerly known as Leonard's Metal, Inc., a Missouri  corporation,  LMI FINISHING
INC., an Oklahoma  corporation,  LEONARD'S  METAL,  INC.,  formerly known as LMI
Acquisition,  Inc., a Missouri corporation,  PRECISE MACHINE COMPANY, a Missouri
corporation, TEMPCO ENGINEERING, INC., a Missouri corporation, formerly known as
Metal  Corporation  and  doing  business  in the  state of  California  as Metal
Corporation  of Sun Valley and VERSAFORM  CORP.,  a California  corporation,  as
co-obligors and co-borrowers and not as accommodation parties (said corporations
being  jointly  and  severally  referred  to  herein as  "Borrower"),  and UNION
PLANTERS BANK,  N.A., a national banking  association,  successor to Magna Bank,
National Association ("Bank").

                                   WITNESSETH:

         WHEREAS,  Borrower and Bank have  heretofore  entered into that certain
Loan Agreement  dated August 15, 1996 as amended by that certain First Amendment
to Loan Agreement dated January 15, 1997, that certain Second  Amendment to Loan
Agreement dated November 1, 1997, that certain Third Amendment to Loan Agreement
dated March 30, 2000,  that certain  Fourth  Amendment to Loan  Agreement  dated
October 30,  2000,  that certain  Fifth  Amendment  to and  Restatement  of Loan
Agreement  dated April 2, 2001,  that certain Sixth  Amendment to Loan Agreement
dated October 30, 2001, that certain  Seventh  Amendment to Loan Agreement dated
November 30, 2001,  that certain  Eighth  Amendment to and  Restatement  of Loan
Agreement  dated May 15, 2002,  that certain Ninth  Amendment to Loan  Agreement
dated June 30,  2002,  that certain  Tenth  Amendment  to Loan  Agreement  dated
November 13, 2002, and that certain  Eleventh  Amendment to Loan Agreement dated
April 15, 2003 (as so amended, the "Loan Agreement"); and

         WHEREAS,  Borrower and Bank desire to further amend the Loan  Agreement
in the manner hereinafter set forth;

         NOW, THEREFORE, in consideration of the premises and for other good and
valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby
acknowledged, Borrower and Bank hereby agree as follows:

         1. The "Revolving  Credit Period",  as defined in Section 2 of the Loan
Agreement, is hereby extended to March 31, 2004.

         2. Section  3.01(a) of the Loan  Agreement is hereby amended to provide
in its entirety as follows:

              (a) Subject to the terms and conditions of this Agreement,  during
         the  Revolving  Credit  Period  of  this  Agreement,  and so long as no
         Default or Event of Default  under this  Agreement  has occurred and is
         continuing,  Bank  hereby  agrees to make such loans  (individually,  a
         "Revolving Credit Loan" and collectively, the "Revolving Credit Loans")
         to  Borrower  as  Borrower  may from time to time  request  pursuant to
         Section 3.02. The aggregate  principal amount of Revolving Credit Loans
         which Bank shall be required to have  outstanding  under this Agreement
         at any one time shall not exceed the lesser of (A) $9,088,323.00 or (B)
         the  Borrowing  Base.  Subject  to the  terms  and  conditions  of this
         Agreement, Borrower may borrow, repay and reborrow such sums from Bank,
         provided,  however,  that in no  event  may the  aggregate  outstanding
         principal  amount of Revolving Credit Loans on any given day exceed the
         applicable  amount specified in the preceding  sentence.  All Revolving
         Credit  Loans not paid  prior to the last day of the  Revolving  Credit
         Period, together with all accrued and unpaid interest thereon, shall be
         due and payable on the last day of the Revolving Credit Period.

         3. Bank  hereby  waives the  existing  Event of Default  under the Loan
Agreement  caused  by the  failure  of  Borrower  and Bank to  enter  into to an
amendment to the Loan  Agreement  establishing  minimum  levels of  Consolidated
EBITDA to apply for periods  after  December  31,  2003,  as required by Section
8.01(i) of the Loan Agreement.  This paragraph is not and shall not be construed
as a  commitment  on the part of Bank to waive  any  other  existing  or  future
Default  or  Event  of  Default  under  the Loan  Agreement  resulting  from any
violation of Section 8.01(i) of the Loan Agreement or any other Default or Event
of Default under the Loan Agreement.

         4.  Borrower  hereby agrees to pay Bank a  nonrefundable  amendment and
waiver  fee  in  the  amount  of   Seventy-five   Thousand  and  no/100  Dollars
($75,000.00)  (the  "Fee") on the  earlier of (i) the last day of the  Revolving
Credit  Period and (ii) the date of payment of  Borrower's  Obligations  and the
termination of the Loan Agreement. Borrower acknowledges and agrees that the Fee
is  fully  earned  upon  the  effectiveness  of,  and as of the  date  of,  this
Amendment.  Notwithstanding  the foregoing,  should Borrower pay its Obligations
before the last day of the  Revolving  Credit  Period and the Loan  Agreement be
terminated  before such date, Bank shall waive  Twenty-five  Thousand and no/100
Dollars ($25,000.00) of the Fee, and the Fee due hereunder  accordingly shall be
reduced to Fifty Thousand and no/100 Dollars ($50,000.00).

         5.  Contemporaneously  with the execution of this  Amendment,  Borrower
will  execute  and  deliver to Bank an Amended and  Restated  Revolving  Note in
substantially  the form of Exhibit A attached hereto and incorporated  herein by
reference.

         6.  Borrower  hereby  agrees  to  reimburse  Bank upon  demand  for all
out-of-pocket  costs and expenses  (including,  without  limitation,  reasonable
attorneys' fees and expenses)  incurred by Bank in the preparation,  negotiation
and  execution of this  Amendment and any and all other  agreements,  documents,
instruments and/or certificates relating to the amendment of Borrower's existing
credit  facilities  with Bank  (collectively,  the "Loan  Documents").  Borrower
further  agrees  to pay or  reimburse  Bank for (a) any  stamp  or  other  taxes
(excluding  income or gross receipts taxes) which may be payable with respect to
the execution,  delivery,  filing and/or recording of the Loan Documents and (b)
the cost of any filings and searches,  including,  without  limitation,  Uniform
Commercial  Code filings and searches.  All of the obligations of Borrower under
this paragraph  shall survive the payment of the Borrower's  Obligations and the
termination of the Loan Agreement.

         7. All  references in the Loan  Agreement to "this  Agreement"  and any
other  references of similar import shall  henceforth mean the Loan Agreement as
amended by this  Amendment.  All  references in the Loan Agreement and the other
Transaction Documents to the "Revolving Credit Note" and any other references of
similar import shall henceforth mean the Amended and Restated  Revolving Note in
the form of Exhibit A attached hereto.

         8. Except to the extent specifically amended by this Amendment,  all of
the terms,  provisions,  conditions,  covenants,  representations and warranties
contained in the Loan Agreement shall be and remain in full force and effect and
the same are hereby  ratified and confirmed.  This amendment is an amendment and
continuation  of the Loan  Agreement  and is not a novation  thereof  nor of any
obligations of Borrower outstanding thereunder on the date hereof.

         9. This  Amendment  shall be binding  upon and inure to the  benefit of
Borrower  and Bank and their  respective  successors  and  assigns,  except that
Borrower may not assign,  transfer or delegate any of its rights or  obligations
under the Loan Agreement, as amended by this Amendment.

         10. Each Borrower hereby represents and warrants to Bank that:

              (a) the  execution,  delivery and  performance by such Borrower of
         this Amendment are within the corporate  powers of such Borrower,  have
         been duly  authorized by all corporate  action and require no action by
         or in  respect  of,  consent  of  or  filing  or  recording  with,  any
         governmental  or  regulatory  body,  agency  or  official  or any other
         Person;

              (b) the  execution,  delivery and  performance by such Borrower of
         this  Amendment  do not  conflict  with,  or  result in a breach of the
         terms,  conditions or  provisions  of, or constitute a default under or
         result in any violation of, the terms of the Articles of  Incorporation
         or By-Laws of such  Borrower,  any applicable  law,  rule,  regulation,
         order,  writ,  judgment  or  decree  of any  court or  governmental  or
         regulatory  agency or  instrumentality  or any  agreement,  document or
         instrument  to which such Borrower is a party or by which such Borrower
         or any of its Property or assets is bound or to which such  Borrower or
         its Property or assets is subject;

              (c) this  Amendment  has been duly  executed and delivered by such
         Borrower and  constitutes  the legal,  valid and binding  obligation of
         such Borrower  enforceable against such Borrower in accordance with its
         terms,  except as such  enforceability may be limited by (i) applicable
         bankruptcy,  insolvency or similar laws  affecting the  enforcement  of
         creditors'  rights  generally  and (ii)  general  principles  of equity
         (regardless  of  whether  such   enforceability   is  considered  in  a
         proceeding in equity or at law); and

              (d) as of the date of this Amendment,  all of the  representations
         and  warranties  of Borrower  set forth in the Loan  Agreement  and the
         Transaction Documents are true and correct in all material respects and
         no Default or Event of Default  under or within the meaning of the Loan
         Agreement has occurred and is continuing.

         11.  In the  event  of  any  inconsistency  or  conflict  between  this
Amendment and the Loan Agreement, the terms, provisions and conditions contained
in this Amendment shall govern and control.

         12. This  Amendment  shall be governed by and  construed in  accordance
with  the  substantive  laws of the  State of  Missouri  (without  reference  to
conflict of law principles).

         13.  Notwithstanding  any provision  contained in this Amendment to the
contrary, this Amendment shall not be effective unless and until Bank shall have
received:

              (a) this Amendment, duly executed by Borrower;

              (b) the Amended and  Restated  Revolving  Note,  duly  executed by
         Borrower;

              (c) a copy of  resolutions  of the Board of Directors of Borrower,
         duly adopted,  which authorize the execution,  delivery and performance
         of this Amendment and the Amended and Restated Revolving Note; and

              (d)  an  incumbency  certificate,  executed  by the  Secretary  of
         Borrower,  which  shall  identify  by  name  and  title  and  bear  the
         signatures of all of the officers of Borrower executing this Amendment.

         14. ORAL  AGREEMENTS OR COMMITMENTS TO LOAN MONEY,  EXTEND CREDIT OR TO
FORBEAR  FROM  ENFORCING  REPAYMENT OF A DEBT,  INCLUDING  PROMISES TO EXTEND OR
RENEW  SUCH  DEBT,  ARE NOT  ENFORCEABLE.  TO  PROTECT  BORROWER  AND BANK  FROM
MISUNDERSTANDING OR DISAPPOINTMENT,  ANY AGREEMENTS REACHED BY BORROWER AND BANK
COVERING  SUCH MATTERS ARE  CONTAINED  IN THE LOAN  AGREEMENT AS AMENDED BY THIS
AMENDMENT  AND THE OTHER  AGREEMENTS,  WHICH LOAN  AGREEMENT  AS AMENDED BY THIS
AMENDMENT AND OTHER  AGREEMENTS  ARE A COMPLETE AND  EXCLUSIVE  STATEMENT OF THE
AGREEMENTS  BETWEEN  BORROWER  AND BANK,  EXCEPT AS BORROWER  AND BANK MAY LATER
AGREE IN WRITING TO MODIFY THEM.


                       [SIGNATURE PAGES FOLLOWS THIS PAGE]




         IN WITNESS WHEREOF, the parties have executed this Twelfth Amendment to
Loan Agreement as of the date first written above.


                                 LMI AEROSPACE, INC. (formerly known as
                                 Leonard's Metal, Inc.)

                                 By /s/ Lawrence E. Dickinson
                                    -----------------------------------------
                                    Lawrence E. Dickinson
                                    Title: Vice President


                                 LMI FINISHING, INC.

                                 By /s/ Lawrence E. Dickinson
                                    -----------------------------------------
                                    Lawrence E. Dickinson
                                    Title: Vice President


                                 LEONARD'S METAL, INC. (formerly known as
                                 LMI Acquisition, Inc.)

                                 By /s/ Lawrence E. Dickinson
                                    -----------------------------------------
                                    Lawrence E. Dickinson
                                    Title: Vice President


                                 PRECISE MACHINE COMPANY

                                 By /s/ Lawrence E. Dickinson
                                    -----------------------------------------
                                    Lawrence E. Dickinson
                                    Title: Vice President


                                 TEMPCO ENGINEERING, INC. (formerly known as
                                 Metal Corporation)

                                 By /s/ Lawrence E. Dickinson
                                    -----------------------------------------
                                    Lawrence E. Dickinson
                                    Title: Vice President


                                 VERSAFORM CORP.

                                 By /s/ Lawrence E. Dickinson
                                    -----------------------------------------
                                    Lawrence E. Dickinson
                                    Title: Vice President


                                 UNION PLANTERS BANK, N.A.

                                 By /s/ Patricia A. O'Herin
                                    -----------------------------------------
                                    Patricia A. O'Herin
                                    Title: Executive Vice President




                                    EXHIBIT A

                              AMENDED AND RESTATED
                                 REVOLVING NOTE


$9,088,323.00                                                St. Louis, Missouri
                                            Date of Original Note:  May 15, 2002
                        Date of this Amended and Restated Note:  January 5, 2004

For  value  received,   the  undersigned,   LMI  AEROSPACE,   INC.,  a  Missouri
corporation,  LMI FINISHING,  INC., an Oklahoma  corporation,  LEONARD'S  METAL,
INC., a Missouri  corporation,  PRECISE MACHINE COMPANY, a Missouri corporation,
TEMPCO  ENGINEERING,  INC.,  a Missouri  corporation,  and  VERSAFORM  CORP.,  a
California  corporation  (collectively,  the  "Borrower"),  hereby  jointly  and
severally  promise to pay on the last day of the  Revolving  Credit Period under
the Loan Agreement (defined below), to the order of UNION PLANTERS BANK, N.A., a
national  banking  association  (the  "Bank"),  at its main office in St. Louis,
Missouri,  or at any other place designated at any time by the holder hereof, in
lawful money of the United States of America and in immediately available funds,
the  principal  sum  of  Nine  Million   Eighty-eight   Thousand  Three  Hundred
Twenty-three  and no/100  Dollars  ($9,088,323.00)  or, if less,  the  aggregate
unpaid  principal  amount of all Revolving  Credit Loans made by the Bank to the
Borrower under the Loan Agreement  (defined below) together with interest on the
principal amount hereunder  remaining unpaid from time to time,  computed on the
basis of the actual  number of days  elapsed and a 360-day  year,  from the date
hereof  until  this  Note is fully  paid at the rate from time to time in effect
under the Eighth  Amendment to and  Restatement of Loan Agreement  dated May 15,
2002  (as the  same  has been and may  hereafter  be  amended,  supplemented  or
restated from time to time,  the "Loan  Agreement")  by and between the Bank and
the Borrower.  The principal  hereof and interest  accruing thereon shall be due
and payable as provided in the Loan Agreement.  This Note may be prepaid only in
accordance with the Loan Agreement.

This Note is issued  pursuant,  and is  subject,  to the Loan  Agreement,  which
provides,  among  other  things,  for  acceleration  hereof.  This  Note  is the
Revolving  Credit Note referred to in the Loan Agreement.  This Note is secured,
among other things, pursuant to the Security Agreements,  the Patent,  Trademark
and License Security  Agreement,  the Kansas Assignment of Leases and Rents, the
Kansas Mortgage,  the Missouri Deed of Trust, the Oklahoma  Assignment of Leases
and Rents, and the Oklahoma  Mortgage,  each defined in the Loan Agreement,  and
may now or  hereafter  be  secured  by one or more  other  security  agreements,
mortgages,  deeds of  trust,  assignments  or other  instruments  or  agreements
(collectively,  the "Security  Documents") to which Security Documents reference
is hereby made for a  description  of the  security and a statement of the terms
and conditions upon which this Note is secured.

The Borrower hereby agrees to pay all costs of collection,  including attorneys'
fees and legal expenses in the event this Note is not paid when due,  whether or
not legal proceedings are commenced.

Presentment  or other  demand for  payment,  notice of dishonor  and protest are
expressly waived.

This  Note  is an  amendment,  restatement  and  continuation  of  that  certain
Revolving Credit Note of Borrower dated May 15, 2002 and payable to the order of
Bank  in the  original  principal  amount  of up to  $7,000,000.00  and is not a
novation  thereof.  All interest  accrued on the  instrument  being  amended and
restated by this Note shall continue to be due and owing to Bank until paid.


                                    LMI AEROSPACE, INC.

                                    By -----------------------------------------
                                       Lawrence E. Dickinson, Vice President and
                                       Chief Financial Officer


                                    LMI FINISHING, INC.

                                    By -----------------------------------------
                                       Lawrence E. Dickinson, Vice President and
                                       Chief Financial Officer


                                    LEONARD'S METAL, INC.

                                    By -----------------------------------------
                                       Lawrence E. Dickinson, Vice President and
                                       Chief Financial Officer


                                    PRECISE MACHINE COMPANY

                                    By -----------------------------------------
                                       Lawrence E. Dickinson, Vice President and
                                       Chief Financial Officer


                                    TEMPCO ENGINEERING, INC.

                                    By -----------------------------------------
                                       Lawrence E. Dickinson, Vice President and
                                       Chief Financial Officer

                                    VERSAFORM CORP.

                                    By -----------------------------------------
                                       Lawrence E. Dickinson, Vice President and
                                       Chief Financial Officer