1
                                                                    EXHIBIT 10.9
                          SUPPLY AND PURCHASE AGREEMENT
                                  CAUSTIC SODA
BETWEEN :
"CHLORALP" a corporation organized under the laws of France , whose registered
office is located at ▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇ , hereinafter
referred to as "ChlorAlp",
                                             on the one hand,
AND :
▇▇▇▇▇-▇▇▇▇▇▇▇ CHIMIE, a Societe Anonyme organized under the laws of France,
having a corporate capital of 2.692.300.400 French Francs, whose registered
office is located at ▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇ ▇▇▇ ▇▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇, acting in
its own name and in the name and on the behalf of the Affiliates indicated in
Schedule 2 attached hereto, for as long as they are Affiliates (as defined in
Article 7.1. hereinbelow) of RPC, hereinafter collectively referred to as "RPC",
                                             on the other hand,
ChlorAlp and RPC being hereafter referred to as the "Parties" ;
WITNESSETH :
-    whereas ChlorAlp operates at Pont de Claix (Isere) a unit producing
     chlorine and caustic soda products,
-    whereas RPC operates several production units at Pont de Claix (Isere)
     and other sites in France, and needs regular supply of caustic soda for
     production of several products,
   2
-        whereas ChlorAlp and RPC wish to enter into a long-term supply and
         purchase agreement in order to provide RPC with caustic soda ;
ARTICLE 1 - OBJECT
The object of the present agreement (the "Agreement") is to define the terms and
conditions according to which ChlorAlp shall supply RPC, and RPC shall purchase
from ChlorAlp various grades of caustic soda, as indicated in Article 2.1. below
and as defined with their respective specifications ( the " Specifications " )
in Schedule 1 of this Agreement (hereinafter the "Product").
ARTICLE 2 - SUPPLY AND PURCHASE OBLIGATIONS
2.1. Caustic Soda Grades
         Caustic Soda purchased from ChlorAlp by RPC under this Agreement shall
         be of different grades according to the various uses and sites of RPC
         concerned, i.e :
         -   Desalinated Caustic Soda ("Soude dessalee" ou "DS")
         -   Standard Caustic Soda ("Soude Standard")
         -   Mixed Caustic Soda ("Soude Melangee")
         -   Mercury Caustic Soda ("Soude Mercure")
         -   Diluted Mercury Caustic Soda ("Soude Diluee Mercure")
         -   Diluted Standard Caustic Soda ("Soude Diluee Standard")
         -   Electrolytic Caustic Soda ("Soude Electrolytique")
2.2. Quantity
         The quantity of Product, which ChlorAlp undertakes to supply to RPC,
         and which RPC undertakes to purchase from ChlorAlp, during each
         calendar year of the Term of this Agreement as defined in Article 6
         hereafter is defined as follows (hereinafter the "Quantity" or "Q") :
         ChlorAlp undertakes to supply to RPC, and RPC undertakes to purchase
         from ChlorAlp, during each calendar year of the Term of this Agreement
         as defined in Article 6 hereafter, one hundred per cent (100 %) of the
         quantities of Caustic Soda (expressed as a 100 % NAOH ) needed by RPC
         for the captive use of any of its sites located in France (hereinafter
         the "Quantity" or "Q") .
   3
         For the calendar year 1996, the annual Quantity of Caustic Soda was
         approximately [*] Metric Tons and for the calendar year 1997, the
         annual Quantity is estimated to be around [*] Metric Tons.
         For the implementation of this Article 2.1., the term "captive use"
         shall mean the use of the Product made by RPC exclusively for its
         internal requirements, existing during the Term of this Agreement, in
         any of its sites located in France.
2.3. Supply Program
         Each year, prior to October 31, RPC will notify to ChlorAlp of its
         estimated purchase requirements for the Product during the subsequent
         calendar year (the "Estimated Purchase Requirements"). The Estimated
         Purchase Requirements divided by 12 months shall constitute the basis
         for RPC's monthly orders, except during the months when turnarounds are
         conducted. Therefore, RPC shall not unreasonably by more than 20 %
         decrease or increase its monthly orders without prior notice to
         ChlorAlp.
         At least five business days before the first business day of month (m),
         RPC shall send to ChlorAlp firm orders for deliveries of Product for
         month (m) and shall communicate to ChlorAlp its best estimations of the
         quantities of Product planned to be ordered for the two following
         months (m + 1) and (m + 2), unless otherwise agreed between the
         Parties. The calendar for weekly deliveries shall be sent by RPC to
         ChlorAlp each Thursday at the latest for the following week, unless
         otherwise agreed between the Parties.
         RPC and ChlorAlp shall meet at the minimum twice a year with a view to
         exchanging mutual information on RPC 's demands and needs, to updating
         schedules and solving any difficulties in applying this Agreement.
2.4. Delivery
         Caustic Soda shall be delivered by pipe, truck or railcar either EXW
         Pont de Claix or DDP, as indicated in Schedule 2 attached hereto with
         reference to the purchase prices, to the various delivery sites
         indicated in the said Schedule 2, in accordance with the 1990 Incoterms
         published by the International Chamber of Commerce . Turnarounds . The
         Parties agree to coordinate in order to decide jointly the date and
         duration of the turnarounds of their respective Pont de Claix
         production units .
* Indicates information deleted based on a Confidential Treatment Request
  pursuant to Rule 406 under the Securities Act of 1933.
   4
ARTICLE 3 - PRICE
3.1.     The "Initial Price" ("P0") of the Product applicable during the fourth
         quarter of 1997 and to be paid by RPC to ChlorAlp is defined - before
         taxes and per metric ton - in Schedule 2 attached hereto.
3.2.     Unless otherwise agreed upon between the Parties in specific cases,
         such Initial Price shall be revised for the first time on January 1st
         1998, and thereafter quarterly, in accordance with the following
         revision formula :
                          [*]
       where :
         P(n) is the revised Price to be applied for the current quarter (n)
(the "Revision Quarter").
         P(n - 1) : is the Price applied to the Product for quarter (n - 1)
         immediately preceding the Revision Quarter.
         H  is the average value for a quarter of the monthly prices ( middle of
         the range ) of Caustic Soda in France as published in the Harrimann
         Chemsult Monthly Report.
         H (n - 1) is the value of H for quarter (n - 1) immediatly preceding
the Revision Quarter.
         H (n - 2) is the value of H for quarter (n - 2) immediately preceding
         quarter (n - 1).
3.3. ChlorAlp shall invoice RPC on a monthly basis .
         Payment term shall be of thirty days, end of the month, the tenth, and
         made by bank transfer.
3.4. For purpose of this Section, Price and other prices of reference shall be
set in accordance with the INCOTERMS 1990 , as set forth in Schedule 2 , and
before taxes .
* Indicates information deleted based on a Confidential Treatment Request
  pursuant to Rule 406 under the Securities Act of 1933.
   5
ARTICLE 4 - QUALITY . PRODUCT  WARRANTY.
ChlorAlp warrants that the Product shall comply with the specifications as
described in Schedule 1 attached to the present Agreement (the
"Specifications"), and shall be free from defects and of good material and
▇▇▇▇▇▇▇ ship.
ChlorAlp shall be liable only for replacement of non-conforming lot of Product
under the following conditions :
All claims by RPC for non-conforming Products shall be deemed waived unless made
by RPC in writing within [twenty (20) days] from the delivery date of such
Product .
If ChlorAlp agrees with RPC's claim, it will, at its expense, immediately
replace the non-conforming lot of Product by a conforming lot of same.
If ChlorAlp does not agree with RPC's claim, either Party may request an expert
appraisal by an independant laboratory, to determine whether said Product
complies with said Specifications. The report of such independant laboratory
shall be conclusive and binding on the Parties hereto. All expenses related to
such appraisal shall be borne by the Party found in default .
RPC and ChlorAlp being "industrial of the same speciality", RPC acknowledge and
agree that the above warranty constitutes its exclusive remedy and ChlorAlp's
total liability for claims regarding any defective Product including but not
limited to "hidden defaults" ("vices caches") and that ChlorAlp excludes any
implied warranties of merchantability and fitness for a particular purpose and
all other express or implied representations or warranties. RPC waives all other
claims against ChlorAlp and ChlorAlp shall not be liable to RPC for any other
direct or indirect damages .
All limitations on RPC's remedies and on ChlorAlp's liability shall survive the
expiration, termination or cancellation of this Agreement.
ARTICLE 5 - TRANSFER OF TITLE AND RISK
Title to Caustic Soda and all risk for loss or any damage thereto shall pass to
RPC as the Product passes in accordance with the terms of delivery referred to
under Article 2.4 above .
   6
ARTICLE 6 - TERM
This Agreement shall come into force on October 1st, 1997, and, except as
provided in Article 7.2 below, shall remain in force for a period of five (5)
years (the "Term").Unless terminated by either Party giving written notice to
the other Party not less than one ( 1 ) year prior to the end of the Term , it
shall be renewed automatically for an unlimited period. Thereafter , it shall be
terminated by either Party giving at any time to the other Party not less than
(1) year prior written notice.
ARTICLE 7 - GENERAL PROVISIONS
7.1. Secrecy
       Each Party agree that all information disclosed to it by the other Party
       under the present Agreement (the "Information") shall be held and treated
       in the utmost and strictest confidence and neither Party shall use said
       Information to benefit itself or others, except for the purpose defined
       in Article 1 hereabove. The receiving Party shall not disclose any
       Information to a third Party unless ( i ) expressly authorized in writing
       to do so by the disclosing Party, which shall not unreasonably withhold
       its consent, provided, however, that, either Party may transmit any
       Information disclosed hereunder to any of its Affiliate or ( ii ) the
       disclosure of such Information is required by law, regulation, legal or
       judicial proceedings , further to a tax investigation or a request from
       any governmental or judicial authorities. Each Party shall be held
       accountable for the compliance of these Affiliates with the terms of this
       Article. For the implementation of this Agreement, the term "Affiliate"
       of either Party shall mean a company which, directly or indirectly,
       controls, is controlled by, or is under common control with said Party.
       "Control" shall mean the control as defined by Articles 355.1 and
       following of the law of July 24, 1996, on commercial companies.
       The Parties agree that, notwithstanding the preceding provision, the
       receiving Party shall be under no obligation with respect to any
       Information, which it can demonstrate that :
       -        was, at the time of disclosure, available to the general
                public, or
       -        became, at a later date, available to the general public
                through no fault of the receiving Party, or,
       -        was in it possession before receipt, or 
   7
       -        was disclosed to it without restriction on disclosure by a
                third party which has the lawful right to disclose said
                Information.
       All obligations contained in this Article 7.1 shall survive for ten years
       after termination of the present Agreement.
7.2. Early Termination
       If either Party is in material breach of any of the terms and conditions
       contained herein, the Party not in default shall be entitled to terminate
       this Agreement forthwith upon giving notice in writing to the Party in
       default and specifying the nature of the default, provided that the Party
       in default shall not be entitled to rely on this provision. The Party in
       default shall have a ninety (90) day delay after receipt of such a notice
       to cure its default. Unless such default is cured no later than 90 days
       following the receipt of such notice, this Agreement may be terminated at
       the sole option of the Party giving such notice , provided that , in such
       case, the terminating Party shall give the Party in default a prior
       written termination notice within a thirty days delay following the
       expiration of the 90 days delay .
       Any such termination hereunder shall not prejudice any rights or benefits
       accrued prior to the date of termination.
7.3. Force Majeure
       Neither Party shall be held liable for any failure or delay in supplying
       or taking delivery of the Product in accordance with the terms and
       conditions of the present Agreement, where such failure or delay is due
       to circumstances beyond its reasonable control, including, without
       limitation, acts of God, regulations or acts of Government, strikes,
       lock-outs, explosions, implosions, fires, floods, wars, insurrections,
       riots, embargoes.
       The Party affected by said circumstances shall promptly notify the other
       Party of the existence thereof and shall use every reasonable effort to
       eliminate or correct the cause preventing performance of this Agreement
       as soon as possible.
       Should ChlorAlp, under such Force Majeure circumstances, have a shortfall
       of Caustic Soda, then ChlorAlp shall make its best efforts to minimize
       the consequences of such 
   8
       Force Majeure for RPC and to resume as promptly as possible its
       obligations under the present Agreement.
       When the reason for invoking Force Majeure has ceased to exist, the
       affected Party shall notify the other Party thereof and promptly resume
       its obligations under this Agreement.
7.4. First Priority Supply
       It is agreed upon between the Parties that in case ChlorAlp has a
       shortfall of Caustic Soda due to whatever reason, including Force Majeure
       circumstances, ChlorAlp shall at any time supply RPC 's requirements on a
       first priority basis.
7.5. Hardship
       In entering in this long-term Agreement, the Parties hereto agree that it
       is impracticable to make provision for every contingency which may arise
       during the term thereof, and the Parties hereby agree it to be their
       intention that this Agreement shall operate between them with fairness
       and without substantial and disproportionate prejudice to the interests
       of either, and that, if in the course of the performance of this
       Agreement unfairness or substantial and disproportionate prejudice to
       either Party is expected or disclosed, then the Parties will use their
       best endeavours to agree upon such action as may be necessary to remove
       or modify such unfairness or prejudice and to reestablish as much as
       possible the initial fairness of the present Agreement.
7.6. Assignment
       No Party shall assign this Agreement to any third party without the prior
       written consent of the other Party, which consent shall not be
       unreasonably withheld.
       Notwithstanding the hereinabove provision, and provided that its assignee
       undertakes to take over all of its rights and obligations set forth in
       this Agreement, either Party hereto shall have the right to assign this
       Agreement, upon written notice to the other Party but without its prior
       written consent, to :
       -   any of its Affiliates, provided that, in such case, (i) the assignor
           shall remain jointly and severally liable for enforcement by the
           assignee of its obligations under this 
   9
       Agreement, and (ii) if the assignee cease to be an Affiliate company
       of the assignor, this Agreement shall have to be reassigned by the
       assignee to the assignor ;
       -    its successor in interest as a result of a statutory merger or
       consolidation, or to a company acquiring all or substantially all 
       of its business including the part concerned by this Agreement.
7.7. Applicable Law
       This Agreement shall be governed by and construed and enforced in
       accordance with the laws of France.
       All disputes, differences, or controversies between the Parties arising
       out of or relating to this Agreement, including the performance,
       breach, validity or interpretation thereof, that can not be amicably
       resolved between them shall be exclusively and finally settled under
       the Rules of Conciliation and Arbitration of the International Chamber
       of Commerce by three arbitrators appointed in accordance with said
       Rules. The arbitration proceedings shall take place in Paris and shall
       be conducted in French and/or in English.
ARTICLE 8 - MISCELLANEOUS
8.1. Entire Agreement
       This Agreement and the schedules attached hereto represent the entire
       understanding and agreement and supersedes all prior agreements,
       understandings or arrangements among the Parties hereto with respect to
       the subject matter hereof and can be amended, supplemented or changed,
       and any provision hereof can be waived, only by written instrument making
       specific reference to this Agreement and duly signed by or on behalf of
       the Parties to this Agreement.
8.2. Waiver
       Failure by any Party to this Agreement to enforce complete and
       punctual performance of any obligation of the other Party shall not be
       deemed a waiver of such Party's right thereafter to enforce that or any
       other term hereof.
8.3. Severability
       If at any time subsequent to the Effective Date, any provisions of this
       Agreement shall be held by any court of competent jurisdiction to be
       illegal, void or unenforceable, such
   10
       provision shall be of no force and effect, but the illegality or
       unenforceability of such provision shall have no effect upon and shall
       not impair the enforceability of any other provision of this
       Agreement.There will be added automatically as a part of this Agreement
       a legal, valid and enforceable provision as similar in terms to such
       illegal, invalid or unenforceable provision as may be possible.
8.4. Notices
       Any notice or other communications required or permitted between the
       Parties hereunder shall be sufficiently given if in writing and
       personally delivered or sent by registered or certified mail, return
       receipt requested, postage prepaid, or if sent by facsimile transmission
       with confirmation of receipt addressed as follows or to such other
       address as the Parties shall have given notice of pursuant hereto :
ChlorAlp  :       Attn : General Manager
                  25 Quai ▇▇▇▇ ▇▇▇▇▇▇
                  92 408 Courbevoie
RPC :  ▇▇▇▇▇-▇▇▇▇▇▇▇ Chimie S.A.
                  ▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇
                  ▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ Cedex
                  Attn :  M.POLAUD
IN WITNESS WHEREOF, the Parties hereto have duly executed this Agreement, as of
the day and year hereinafter written.
                                             made in  Paris
                                             on  October 17, 1997
▇▇▇▇▇-▇▇▇▇▇▇▇ CHIMIE S.A                     CHLORALP
   
By : /s/ M. Polaud                           By : /s/ ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇
    --------------------------------             ------------------------------
Title : President                            Title :
       -----------------------------                ---------------------------
        RP Basic Industrial Products
    
   11
                           SCHEDULE 1 - SPECIFICATIONS
                                  CAUSTIC SODA
                  Schedule 1 will be provided upon Request.
* Indicates information deleted based on a Confidential Treatment Request
  pursuant to Rule 406 under the Securities Act of 1933.
   12
                             SCHEDULE 2 - PRICES
                                     [*]
* Indicates information deleted based on a Confidential Treatment Request
  pursuant to Rule 406 under the Securities Act of 1933.