Document:

Exhibit 10.1

                         SIXTH AMENDMENT TO THE AMENDED
                   AND RESTATED RECEIVABLES PURCHASE AGREEMENT

     THIS  SIXTH  AMENDMENT  TO  THE AMENDED AND RESTATED  RECEIVABLES  PURCHASE
AGREEMENT, dated as of March 30, 2005 (this "Amendment"), is entered into by and
among  U.S.  STEEL  RECEIVABLES LLC, a Delaware limited  liability  company,  as
Seller (the "Seller"), UNITED STATES STEEL CORPORATION (formerly known as United
States  Steel LLC, in its individual capacity "USS"), a Delaware corporation  as
initial  Servicer (in such capacity, together with its successors and  permitted
assigns  in  such capacity, the "Servicer"), each FUNDING AGENT  listed  on  the
signature  pages hereto on behalf of their respective CP Conduit Purchasers  and
Committed Purchasers (collectively, the "Funding Agents") and THE BANK  OF  NOVA
SCOTIA,  a  Canadian  chartered bank acting through  its  New  York  Agency,  as
Collateral Agent for the CP Conduit Purchasers and Committed Purchasers (in such
capacity,  together  with  its  successors and assigns  in  such  capacity,  the
"Collateral  Agent").  Capitalized terms used and not otherwise  defined  herein
are  used as defined in the Amended and Restated Receivables Purchase Agreement,
dated as of November 28, 2001 (as amended or otherwise modified through the date
hereof,  the  "Agreement"),  among the Seller,  the  Servicer,  the  CP  Conduit
Purchasers from time to time party thereto, the Committed Purchasers  from  time
to time party thereto, the Funding Agents and the Collateral Agent.

     WHEREAS,  the  parties  hereto desire to amend  the  Agreement  in  certain
respects as provided herein.

     NOW  THEREFORE,  in  consideration  of  the  premises  and  other  material
covenants contained herein, the parties hereto agree as follows:

     SECTION 1.       Amendments.

          1.1   Paragraph  (c)  of  the definition of "Eligible  Receivable"  in
     Exhibit  I to the Agreement is hereby amended and restated in its  entirety
     to read as follows:

          "(c)       that does not have a stated maturity which is more than  64
     days after the original invoice date,"

          1.2   The definition of "Loss Reserve Percentage" in Exhibit I to  the
     Agreement  is  hereby  amended and restated in  its  entirety  to  read  as
     follows:

          ""Loss Reserve Percentage" means, on any date, the greater of: (a) the
     sum  of 12% and the Joint Venture Obligor Percentage at such time, and  (b)
     (i)  the  product  of (x) the Reserve Adjustment Factor times  the  highest
     average  of  the  Default Ratios for any three consecutive calendar  months
     during  the  twelve  most  recent calendar months  multiplied  by  (y)  the
     aggregate amount of Receivables generated by the Originators during (A) if,
     pursuant  to  Section 2(j) of Exhibit IV to the Agreement, the Servicer  is
     only  required  to provide a Monthly Report, the five most recent  calendar
     months,  (B) if, pursuant to Section 2(j) of Exhibit IV  to the  Agreement,
     the  Servicer is required to provide a Weekly Report, the sum of  the  four
     most  recent  calendar  months, plus 0.25,  times  the  fifth  most  recent
     calendar  month and (C) if, pursuant to Section 2(j) of Exhibit IV  to  the
     Agreement,  the  Servicer is required to provide a Daily Report,  the  four
     most  recent  calendar  months divided by (ii)  the  Net  Receivables  Pool
     Balance on such date."

           1.3   The  definition of "Payment Terms Factor" in Exhibit I  to  the
     Agreement is hereby deleted in its entirety.

           1.4   Section 2 in Exhibit II to the Agreement is hereby  amended  by
     adding the following clause (c) thereto:

           "(c)   Notwithstanding anything in this Agreement  or  in  any  other
     Transaction Document to the contrary, neither the Seller nor Servicer shall
     request  any  Transfer  from  a  CP Conduit Purchaser  and  no  CP  Conduit
     Purchaser shall be under any obligation whatsoever to fund any such request
     or  shall  be  liable  for the failure to fund any Transfer  so  requested,
     unless  and  until the Collateral Agent and each Funding Agent  shall  have
     (i) received a copy of all applicable documents, reports, or other records,
     in  each  case  in  form  and  substance  reasonably  satisfactory  to  the
     Collateral  Agent and each of the Funding Agents, reasonably  requested  by
     the  Collateral  Agent  or  any Funding Agent; and  (ii)  received  results
     satisfactory to each such Person (in their sole determination) of an agreed
     upon  procedures  field  exam,  in form and substance  acceptable  to  each
     Funding Agent and the Collateral Agent, performed by PricewaterhouseCoopers
     or   another  firm  of  certified  public  accountants  or  other  auditors
     reasonably  acceptable to each Funding Agent and the Collateral  Agent  and
     each  shall  have  confirmed  in writing to the Servicer  (a  "Satisfaction
     Notice")  that  all  the documents, reports, records and  the  agreed  upon
     procedures  field exam required by this clause (c) are satisfactory.   Upon
     Servicer's receipt of the Satisfaction Notice, this clause (c) shall be  of
     no  further force and effect, and all requests for transfers after the date
     of  the Satisfaction Notice shall be subject to the terms of this Agreement
     (including Section 1.2, but not including this clause (c)).

           1.5   Each  of  Sections 2(j)(vii) and (viii) in Exhibit  IV  to  the
     Agreement are hereby amended by adding the following proviso at the end  of
     each such section:

           ";  provided that no such report shall be required if, at such  time,
     there  is  no  Capital outstanding, the Servicer shall not be  required  to
     deliver the report referred to in this subsection".

     SECTION 2.       Agreement in Full Force and Effect as Amended.

     Except  as specifically amended hereby, the Agreement shall remain in  full
force  and effect.  All references to the Agreement shall be deemed to mean  the
Agreement as modified hereby.  This Amendment shall not constitute a novation of
the  Agreement,  but shall constitute an amendment thereof.  The parties  hereto
agree  to  be bound by the terms and conditions of the Agreement, as amended  by
this Amendment, as though such terms and conditions were set forth herein.

     SECTION 3.       Effectiveness of this Amendment.

     A.   This Amendment shall become effective as of the date hereof upon
receipt by the  Collateral  Agent  and  each  Funding Agent  of  counterparts
(whether  by facsimile  or otherwise) of this Amendment duly executed by each of
the  parties hereto.

     SECTION  4.       Representations and Warranties of USS and Seller; Further
Assurances.

     A.   USS and the Seller, each for itself only, hereby represent and warrant
that,  upon  this Amendment becoming effective, (i) each of the representations,
warranties,  covenants and agreements made by it under each of  the  Transaction
Documents to which it is a party are true and correct as of the date hereof.

     B.   USS and the Seller hereby agree to provide (or to cause to be
provided) to the Collateral Agent and each Funding Agent, a copy of all
documents, agreements, instruments, certificates or other records or receipts,
if any, relating to the subject matter of this Amendment, as the Collateral
Agent or any Funding Agent may reasonably request.

     SECTION 5.       Miscellaneous.

     A.   This Amendment may be executed in any number of counterparts, and by
the different  parties hereto on the same or separate counterparts, each of
which when so executed and delivered shall be deemed to be an original
instrument but all of which together shall constitute one and the same
agreement.

     B.   The descriptive headings of the various sections of this Amendment are
inserted for convenience of reference only and shall not be deemed to affect the
meaning or construction of any of the provisions hereof.

     C.   This Amendment may not be amended or otherwise modified except as
provided in the Agreement.

     D.   Each of the Collateral Agent and the Funding Agents do not waive and
have not waived, and hereby expressly reserve, its right at any time to take any
and all actions, and to exercise any and all remedies, authorized or permitted
under the Agreement, as amended, or any of the other Transaction Documents, or
available at law or equity or otherwise.

     E.   Any provision in this Amendment that is prohibited or unenforceable in
any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of
such prohibition or unenforceability without invalidating the remaining
provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any
other jurisdiction.

     F.   THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER
THIS AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE
WITH THE LAWS OF THE STATE OF NEW YORK (INCLUDING, WITHOUT LIMITATION, SECTIONS
5-1401 AND 5-1402 OF THE NEW YORK GENERAL OBLIGATION LAW).

     IN  WITNESS WHEREOF, the parties have caused this Amendment to be  executed
by  their  respective officers thereunto duly authorized, as of the  date  first
above written.

                              UNITED STATES STEEL CORPORATION,
                              as initial Servicer

                              By:    /s/ G. R. Haggerty
                                     ---------------------
                              Name:  G. R. Haggerty
                              Title: Executive Vice President and Chief
                                     Financial Officer

                              U.S. STEEL RECEIVABLES LLC, as Seller

                              By:    /s/ L. T. Brockway
                                     ---------------------
                              Name:  L.T. Brockway
                              Title: Vice President

                              FUNDING AGENTS AND PURCHASERS:

                              THE  BANK OF NOVA SCOTIA, as a Committed Purchaser
                              for  Liberty Street Funding Corp., and as  Funding
                              Agent  for  Liberty Street Funding Corp.  and  The
                              Bank of Nova Scotia, as Purchasers

                              By:    /s/ Norman Last
                                     ---------------------
                              Name:  Norman Last
                              Title: Managing Director

                              LIBERTY STREET FUNDING CORP.,
                              as a CP Conduit Purchaser

                              By:    /s/ Bernard J. Angelo
                                     ---------------------
                              Name:  Bernard J. Angelo
                              Title: Vice President

                              JPMORGAN CHASE BANK, as a Committed Purchaser  for
                              Delaware  Funding Corporation and  JPMorgan  Chase
                              Bank, as Purchasers

                              By:    /s/ Leo Loughead
                                     ---------------------
                              Name:  Leo Loughead
                              Title: Managing Director

                              JPMORGAN  CHASE  BANK,  as  a  Funding  Agent  for
                              Delaware Funding Corporation

                              By:    /s/ Leo Loughead
                                     ---------------------
                              Name:  Leo Loughead
                              Title: Managing Director

                              JPMORGAN  CHASE  BANK,  as  attorney-in-fact   for
                              Delaware  Funding Corporation,  as  a  CP  Conduit
                              Purchaser

                              By:    /s/ Leo Loughead
                                     ---------------------
                              Name:  Leo Loughead
                              Title: Managing Director

                              COLLATERAL AGENT:

                              THE BANK OF NOVA SCOTIA,
                              as Collateral Agent

                              By:    /s/ Norman Last
                                     ---------------------
                              Name:  Norman Last
                              Title: Managing DirectorExhibit 10.24

                                DEALER AGREEMENT

     American Soil Technologies, Inc., having its main office at 1224 Montague
Street, Pacoima, CA 91331 (hereinafter called "ASTI."), hereby appoints and
authorizes: Donald Weishuhn on behalf of a company to be formed (Newco), with
its principal place of business located at Fm Hwy 765, Eola, Texas 76937
(hereinafter called "Dealer"), to act as a dealer to sell on a nonexclusive
basis the products listed on SCHEDULE I hereto (the "Products"). Dealer hereby
accepts this appointment and agrees to purchase and resell the Products under
the terms and conditions set forth below.

     1. TERM.

     This Agreement shall be effective as of the date it is signed and accepted
by ASTI and continue for a period of three (3) years unless terminated pursuant
to the provisions set forth in Section 6. Sections 7(D) and (F) shall survive
termination hereof.

     2. PRIMARY TRADE AREA.

     The Dealer's Primary Trade Area is from south of Lubbock, Texas to the
Dallas area. Dealer acknowledges that it is a non-exclusive dealer of the
Products in its primary trade area and an exclusive dealer as to the accounts
established by the Dealer and made a part of SCHEDULE II.

     3. MINIMUM QUANTITY.

     Dealer will not be required to stock a minimum quantity of the Products for
the first two years of this Agreement. ASTI shall ship the Products directly to
Dealer's customers or to Dealer FOB ASTI's warehouse

     4. DIRECT PURCHASES.

     All purchases and return of Products from ASTI by Dealer shall be made
pursuant to a written purchase order from Dealer and shall be governed by
ASTI.'s price, delivery, payment and other terms then in effect. No inconsistent
terms in any purchase order, acknowledgement or transmittal or confirming
document shall be effective to alter the terms of this Agreement.

     5. SALES SUPPORT.

     Dealer shall support all sales of the Products in a commercially reasonable
manner as is customary in the industry and appropriate for each sale, including
but not limited to: maintaining a sales force, developing a marketing and sales
plan with ASTI.'s account manager, and post-sales follow up with ASTI.'s account
manager.
<PAGE>
     ASTI shall be the technical advisor to the Dealer and installation
directions received from ASTI for the Products shall be mandatory.

     6. TERM AND TERMINATION

     This Agreement may be terminated: (1) at any time by the mutual consent of
the parties in writing, effective as provided therein; (2) upon thirty (30) days
written notice by Dealer to ASTI without cause; or (3) with cause by either
party at any time by giving the other party thirty (30) days notice, in writing,
by registered or certified mail, of such termination. The Manufacturer shall
fill all orders for Products placed for Dealer's specific customers prior to
termination of this Agreement.

     (a) This Agreement shall expire three (3) years from the date of execution.
This Agreement shall automatically renew under the same terms and conditions in
additional three (3) year increments unless either party is in default of any
material term of this Agreement. If a material default exists hereunder, the
non-defaulting party shall give the defaulting party thirty (30) days written
notice to cure the default or, if the default may not be cured in such time, a
reasonable amount of time to cure the default. If the defaulting party is unable
to cure the within the time frame specified, this Agreement shall be voidable by
the non-defaulting party.

     (b) ASTI warrants that it shall conduct the renewal of this Agreement in
good faith. If, after the expiration of the three-year renewal period specified
in 11(a) above without renewal, ASTI elects to appoint a new dealer for an
exclusive customer of Dealer, ASTI shall provide a copy of such agreement to
Dealer. Dealer shall have thirty (30) days to match the terms of such agreement.
If Dealer agrees to the terms of such agreement, ASTI shall renew Dealer as the
exclusive dealer for that customer.

     (c) The Parties acknowledge that upon the expiration of this Agreement,
ASTI shall have no right to require Dealer to continue to act as a Dealer of
Products, or of any of them, and Dealer shall have no right to require ASTI to
continue to supply Products, or any of them, to Dealer. In the event of
expiration or termination of this Agreement ASTI shall execute delivery on all
orders placed with and accepted by it and Dealer shall accept shipment and make
payment for any such orders, all in accordance with the provisions of this
Agreement even though termination or expiration has been effected.

     This Agreement may be canceled by the non-offending party prior to the
expiration of the contract term on any of the following grounds:

     (1) A trustee, receiver, or other similar custodian is appointed for all or
any substantial part of the other party's property:

     (2) When the aggregate of one party's property, exclusive of any property
which it may have conveyed, transferred, concealed, removed or permitted to be
concealed or removed, with intent to defraud, hinder, or delay its creditors,

                                       2
<PAGE>
shall not at a fair valuation be sufficient in amount to pay its debts, or the
party is unable, by its available assets or the honest use of credit, to pay its
debts as they become due;

     (3) The other party files a petition, or an answer not denying
jurisdiction, in bankruptcy or under Chapter 7 or 11 of the Federal Bankruptcy
Code or any similar law, state or Federal, whether now or hereafter existing, or
such a petition is filed against the other party and not vacated or stayed
within fifteen (15) days;

     (4) The other party makes an assignment for the benefit of creditors;

     (5) An attachment, or any like process, is levied or filed against any
substantial part of the other party's property, and is not discharged within
fifteen (15) days;

     (6) A judgment is rendered against the other party and remains unsatisfied,
unstayed or otherwise unsuperseded for sixty days (60) and is substantial in
relation to other party's assets;

     (7) The other party ceases to have in effect a valid Federal, state or
local license required for the carrying out of the provisions of this Agreement,
whether through revocation, failure or renew, or suspension for more than thirty
(30) days;

     (8) A law is enacted making the sale of Products unlawful;

     (9) The other party engages in any act with respect to the Products which
is in violation of any Federal or state law, regardless of whether such
violation is prosecuted by any administrative of judicial body which violation
results in a loss of the licenses necessary to distribute or supply the
Products;

     (10) The other party does not comply with credit terms as agreed to between
the parties.

     (11) An assignment pledge or any other security interest is created in all,
or a substantial part of the other party's assets without the prior written
consent of the non-assigning party;

     (12) A breach of any provision of this Agreement, other than those set
forth in subparagraphs (1) through (11) above, if said breach remains
uncorrected for thirty (30) days after written notice thereof.

     (13) Failure by the Dealer to meet the minimum sales required, if any.

     (14) The Dealer sells competitive products that are substantially the same
as those supplied by ASTI without ASTI's written permission.

                                       3
<PAGE>
     A cancellation pursuant to paragraphs 6 (1) through 6 (14) above shall take
effect commencing with the thirtieth day after written notice is given to the
party whose rights are to be canceled.

     7. GENERAL PROVISIONS.

          A. The provisions of this Agreement shall apply to all Products
     shipped to Dealer's customers or Dealer under any prior agreement with
     ASTI. as well as Products shipped to Dealer's customer on or after the date
     hereof.

          B. Any notice to be given hereunder shall be in writing and delivered
     personally, sent by fax, sent by reputable courier service, or sent by
     certified or registered mail, postage prepaid, return receipt requested,
     addressed to the party concerned at the following address:

          If to ASTI.:

               American Soil Technologies, Inc.
               1224 Montague Street,
               Pacoima, CA 91331
               Attn:    Carl P. Ranno
               Telephone No.:   (818) 899 4686
               Telecopier No.:  (818) 899 4670

          If to Dealer:
               Donald Weishuhn
               Fm Hwy 765,
               Eola, Texas 76937
               Telephone No.:  (325) 656 0237
               Telecopier No.:  (325) 469 3734

          Any party may change its address for purposes of this Agreement by
     notice given in compliance with this paragraph. All such notices, requests,
     demands and communications shall be deemed to have been given on the date
     of delivery if personally delivered, sent by fax or sent by reputable
     courier service; or on the tenth (10th) business day following the mailing
     thereof if sent by mail, postage prepaid.

          C. This Agreement shall be governed by and construed in accordance
     with the internal substantive laws and judicial decisions of the State of
     California without giving effect to its conflict of laws provisions.

          D. Each party hereto consents to the exclusive jurisdiction of either
     the Superior Court of Los Angeles County, California or the United States

                                       4
<PAGE>
     District Court for the Middle District of California for purposes of any
     action brought under or as the result of a breach of this Agreement, and
     they each waive any objection thereto. The parties hereto each further
     consent and agree that the venue of any action brought under or as a result
     of a breach of this Agreement shall be proper in either of the above-named
     courts and they each waive any objection thereto.

          E. This Agreement shall be binding upon, and shall be for the benefit
     of, the parties and their respective successors and permitted assigns;
     provided, however, that Dealer may not assign this Agreement without
     ASTI.'s prior written consent. Failure of either party to enforce at any
     time the provisions of this Agreement shall not be construed to be a waiver
     of such provisions or of the right of such party thereafter to enforce such
     provisions.

          F. This Agreement contains the entire agreement of the parties
     relating to the subject matter hereof and replaces all other understandings
     and agreements, whether oral or in writing, previously entered into by the
     parties with respect to such subject matter. This Agreement will not be
     amended or modified in any way except by an agreement in writing signed by
     duly authorized representatives of the parties.

     IN WITNESS WHEREOF, the parties have executed this Agreement.

     Donald Weishuhn                           American Soil Technologies, Inc.

     By /s/ Donald Weishuhn                    By: /s/ Carl P. Ranno
       ------------------------------             ------------------------------
       Donald Weishuhn                            Carl P. Ranno
                                               Its President & CEO

     Date                                     Date NOVEMBER 19, 2004
         ----------------------------             ------------------------------

                                       5
<PAGE>
                                SCHEDULE I
                                 PRODUCTS

Agriblend (R), Nutrimoist (R)L, Nutrimoist (R) H-2.5, Nutrimoist Crystals,
Extend(TM) (a liquid PAM), Stockosorb (R) F, Stockosorb (R) C, Stockosorb (R) M,
Stockosorb (R) S, , Stockopam, Canal Seal, Dust Contain, Baraclear(R), ASTI Gras
120 Flocculant, Anchor MP, Nutrimoist Hydromulch, Nutrimoist Turf Bio Blend 1 &
2 and other products to be added from time to time.

It is also understood that the product names may be changed from time to time
with adequate notice to the Dealer.

                                       6
<PAGE>
                                SCHEDULE II

Exclusive Customers to be added and made a part of this Schedule.

                                       7

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