Document:

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                                                                   EXHIBIT 10.19

            STAT-PRO(R)3000 and STAT-PRO(R)3000 E PURCHASE AND SUPPLY
            ---------------------------------------------------------
                                 AGREEMENT
                                 ---------

     This agreement, by and between

     Miller Waste Mills, d/b/a RTP COMPANY, a corporation of the State of
Minnesota having offices at 580 Front Street, Winona, MN 55987 (hereafter "RTP")

                                       and

     FLUOROWARE, INC., a corporation of the State of Minnesota having offices at
3500 Lyman Blvd., Chaska, MN 55318 (hereafter "Fluoroware")

                           W I T N E S S E T H, That:
                           -------------------

     WHEREAS RTP manufactures and sells Compounded PEEK(TM)resins;

     WHEREAS Fluoroware has for some period of time purchased Compounded
PEEK(TM) resins from RTP; and

     WHEREAS RTP desires to continue to supply Compounded PEEK(TM) resins to
Fluoroware, and Fluoroware desires to continue to purchase such resins from RTP;

     NOW, THEREFORE, in consideration of the mutual covenants and promises set
forth herein, the parties agree as follows:

ARTICLE I - TERM AND SCOPE
---------------------------

     1.01 This Agreement shall cover the period July 1, 1998, to August 31,
2003. No less than six (6) months prior to the end of such five year period, the
parties will enter into discussions regarding the terms and conditions under
which this Agreement may be extended.

     1.02 Both Parties reserve the right to terminate this contract on August
31, 2001, at their sole discretion. This termination must be given via 90 day
written notice.

     1.03 This Agreement shall relate solely to the supply of Compounded
PEEK(TM) resins by RTP to any Fluoroware designated location world wide.

ARTICLE 2 - PRODUCT
-------------------

     2.01 RTP will sell, and Fluoroware will purchase the following Compounded
PEEK(TM) resins (hereafter "Product") as further described in the Fluoroware
Resin Specification & Control Plan" as set forth on Attachment A, hereto or as
such attachment is amended and mutually agreed upon from time to time (hereafter
"Fluoroware Resin Specification"):

                                       -1-
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                   Fluoroware Part Number 830 Stat-Pro(R) 3000
                          RTP 2299X59069 Natural/black

                  Fluoroware Part Number 900 Stat-Pro(R) 3000 E
                           RTP 2299X76246B Natural/black

     2.02 RTP recognizes that Fluoroware Stat-Pro(R) 3000, RTP 2299X59069 and
Stat-Pro(R) 3000 E, RTP 2299X76246B Natural/black, are proprietary resins to
Fluoroware and will not be sold to any other customer.

ARTICLE 3 - EXCLUSIVITY
-----------------------

     3.01 Provided that Fluoroware purchases at least 50% of the annual
quantities specified in Article 7 of this agreement, RTP shall use the
combination of PEEK(TM) and the high purity carbon fiber found in Fluoroware
Part Number 900, solely and exclusively for Fluoroware uses in storage and
transportation carriers, pods, wafer transport modules, boxes and other mutually
agreed upon products exclusively for the semiconductor market.

     3.02 In granting the above-referenced exclusivity, it is RTP's intent to
not knowingly sell to others who intend to utilize the Products for these
Applications,

     3.03 Nothing herein shall be construed as granting Fluoroware any exclusive
right to purchase any products other than Product set forth in paragraph 2.01
for use in the Applications nor prohibit RTP from selling Product for use in any
applications other than the Applications set forth in paragraph 3.01

ARTICLE 4 - QUALITY ASSURANCE
-----------------------------

     4.01 RTP warrants to Fluoroware that the Product will conform to Product
specifications and will provide certification with each shipment of Product
indicating compliance with such specification.

ARTICLE 5 - INSPECTION
----------------------

     5.01 For the purpose of confirming compliance with Fluoroware Resin
Specification all Product supplied hereunder shall be subject to inspection by
Fluoroware. RTP will submit two plaques molded from each lot of Product to
Fluoroware for use in inspection .

     5.02 In the event that any of the Product shipped to Fluoroware under this
Agreement does not meet the appropriate Fluoroware Resin Specification, then
Fluoroware shall have the right to reject such Product by giving RTP prompt
notice thereof. RTP may at its option obtain samples of the rejected Product
from Fluoroware for analysis. RTP will ship replacement Product to Fluoroware
within three (3) days of receipt of notification of such rejection provided

                                       -2-
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both parties agree on the cause of rejection, and RTP has a quantity of
acceptable raw materials to produce replacement material. RTP will fully credit
Fluoroware for the rejected Product provided RTP agrees that it is responsible
for causing the non-compliance. RTP will be responsible for any expenses
incurred in returning such rejected Product and in providing new product.

ARTICLE 6 - PACKAGING
---------------------

     6.01 Product will be delivered in Gaylord boxes with a sealed polyethylene
liner, or other container as acceptable to RTP subject to the prior written
approval of Fluoroware.

ARTICLE 7 - QUANTITY
--------------------

     7.01 Provided that raw materials are available in 1998, RTP agrees to sell,
at a minimum, (*) pounds of Product to Fluoroware. Provided its total
requirements for Product equal or exceed (*) pounds in 1998, Fluoroware agrees
to purchase a minimum of (*) pounds of Product from RTP.

     7.02 Provided that raw materials are available in 1999, RTP agrees to sell,
at a minimum, (*) pounds of Product to Fluoroware. Provided its total
requirements for Product equal or exceed (*) pounds in 1999, Fluoroware agrees
to purchase a minimum of (*) pounds of Product from RTP.

     7.03 Provided that raw materials are available in 2000, RTP agrees to sell,
at a minimum, (*) pounds of Product to Fluoroware. Provided its total
requirements for Product equal or exceed (*) pounds in 2000, Fluoroware agrees
to purchase a minimum of (*) pounds of Product from RTP.

     7.04 Provided that raw materials are available in 2001, RTP agrees to sell,
at a minimum, (*) pounds of Product to Fluoroware. Provided its total
requirements for Product equal or exceed (*) pounds in 2001, Fluoroware agrees
to purchase a minimum of (*) pounds of Product from RTP.

     7.05 Provided that raw materials are available in 2002, RTP agrees to sell,
at a minimum, (*) pounds of Product to Fluoroware. Provided its total
requirements for Product equal or exceed (*) pounds in 2002, Fluoroware agrees
to purchase a minimum of (*) pounds of Product from RTP.

(*)  Denotes confidential information that has been omitted and filed
     separately, accompanied by a confidential treatment request, with the
     Securities and Exchange Commission pursuant to Rule 406 of the Securities
     Act of 1933, as amended.

                                       -3-
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     7.06 In the event that Fluoroware's total requirements for Product exceed
the minimum purchase and supply obligations set forth in paragraphs 7.01 through
7.05, RTP shall utilize best efforts to provide additional pounds to meet
Fluoroware's requirements.

     7.07 RTP agrees to stock Product in quantities sufficient to meet
Fluoroware's forecast needs, during planned down times either at RTP or at RTP's
suppliers.

ARTICLE 8 - FORECAST REQUIREMENTS
---------------------------------

     8.01 Fluoroware will provide RTP a written forecast of its Product
quantities on an annual basis no later than ninety (90) days prior to this
Agreement's anniversary date.

     8.02 Quarterly forecast updates will be provided on or before the fifteenth
of the month preceding any quarter. This quarterly forecast will forecast
quantities in the following two quarters.

ARTICLE 9 - PURCHASE ORDERS
---------------------------

     9.01 Purchase orders will be issued for Product indicating Fluoroware Resin
Specification revision level and quantities. Shipments will be authorized by
P.O. releases.

ARTICLE 10 - PRICE
------------------

     10.01 RTP agrees the price of 830 shall not exceed $(*) per pound, and the
price for 900 shall not exceed $(*) per pound for the first year of this
Agreement and shall decrease each year thereafter. If Fluoroware purchases at
least 75% of the annual quantities called out in Article 7, the price shall
decrease a minimum of $0.30 per pound per year with reductions taking effect on
each anniversary date of this contract. If Fluoroware purchases 50%-74% of the
annual quantities called out in Article 7, the price shall decrease a minimum of
$0.15 per pound per year with reductions taking effect on each anniversary date
of this contract. If Fluoroware purchases less than 50% of the annual quantities
called out in Article 7, their will be no annual reduction required on the first
of each year, however both parties will continue to work in good faith to find
ways to reduce the cost of this material.

(*)  Denotes confidential information that has been omitted and filed
     separately, accompanied by a confidential treatment request, with the
     Securities and Exchange Commission pursuant to Rule 406 of the Securities
     Act of 1933, as amended.

                                       -4-
<PAGE>

These decreases may be achieved by RTP reducing internal costs, or by RTP
submitting cost savings suggestions to Fluoroware in writing, where Fluoroware
accepts the suggestion and the purchase price is reduced. All cost savings
suggestions submitted in writing which end up reducing the price to Fluoroware,
will be put towards the annual $0.30 per pound per year reduction requirements.

     10.02 Payment Terms are Net 15 days from date of Invoice. Invoices to be
consolidated monthly. Price of Product is FOB: Delivered, Freight Allowed, to
designated locations in the United States. Price of Product is FOB: Vessel, to
designated locations outside the United States.

     10.03 RTP and Fluoroware agree to meet annually to set price reduction
targets for Product and will work together for continuous improvement in the
supply chain of this Product. RTP will actively pursue raw material cost savings
through the use of alternate raw materials. Any raw material changes must be
approved by Fluoroware. RTP will pass along any savings resulting from use of
alternate raw materials in the form of a Product price reduction.

     10.04 RTP will make every effort to seek stable and/or decreasing prices
from its suppliers of the raw materials that make up the Stat Pro(R) 3000 and
Stat Pro(R) 3000 E. In the event there is a verified price increase in raw
materials during the term of this agreement, RTP may pass along that portion of
the price increase which directly impacts the cost of Fluoroware's Stat Pro(R)
3000 and Stat Pro(R) 3000 E, provided that RTP shares concrete evidence of the
price change, and negotiates in Fluoroware's behalf to neutralize any increases.
In the event of a reduction in the cost of any raw materials, RTP agrees to
share 50% of any raw material decreases with Fluoroware. These raw material
reductions will not affect the annual reductions called out in paragraph 10.01.

ARTICLE 11 -BEST PRICE
----------------------

     11.01 Should RTP sell a resin similar to this Product (in like quantities)
to a third party for use in applications like those currently sold by Fluoroware
at a price lower than the price of such Product sold to Fluoroware hereunder,
then RTP shall offer such lower price to Fluoroware for Product for such term as
the lower price is in effect with the third party.

ARTICLE 12 - SUPPLY ASSURANCE
-----------------------------

     12.01 Except for adverse circumstances beyond the control of RTP such as an
Act of God, fire, explosion, flood, unavailability of raw materials, or war
which impact RTP's ability to supply Product hereunder, Fluoroware's
requirements will be assured before similar products are sold to other
customers.

                                       -5-
<PAGE>

ARTICLE 13 - REPORTING
----------------------

     13.01 On a quarterly basis, Fluoroware will provide RTP with Quality and
Delivery Performance Ratings. RTP agrees to develop corrective action plans for
review and approval by Fluoroware when Quality Performance falls below on
hundred percent (100%) and/or Delivery Performance falls below ninety-seven
percent (97%).

ARTICLE 14 - MISCELLANEOUS
--------------------------

     14.01 This Agreement is not assignable or transferable by either party, in
whole or in part, except with prior written consent of the other party.

     14.02 This Agreement shall be governed by and interpreted in accordance
with the laws of the State of Minnesota. Any dispute relating to this Agreement
which the Parties are not able to resolve through amicable discussion and
negotiation shall be resolved by binding arbitration in Minneapolis, Minnesota,
pursuant to the COMMERCIAL RULES of the American Arbitration Association. The
decision of the arbitrator shall be final and shall be enforceable in any court
of competent jurisdiction.

     14.03 This Agreement embodies the entire agreement and understanding
between RTP and Fluoroware relative to the subject matter hereof and there are
no understandings, agreements, conditions or representations, oral or written,
expressed or implied, with reference to the subject matter hereof that are not
merged or superseded hereby. No amendment, modification or release from any
provision hereof shall be of any force or effect unless it is in writing, signed
by the party claimed to be bound thereby, and specifically refers to this
Agreement.

     IN WITNESS WHEREOF, the parties have caused this Agreement to be executed
by their duly authorized representatives on the dates indicated below.

RTP, INC.                                      FLUOROWARE, INC.

BY: /s/ Illegible                        BY: /s/ Ross Hanson
    -----------------------------------      -----------------------------------

TITLE: V.P., Business Management         TITLE: Corporate Purchasing Manager
       --------------------------------         --------------------------------

DATE: 6/29/98                            DATE:  6/17/98
      ---------------------------------         --------------------------------

BY: /s/ Illegible                        BY:  /s/ Illegible
    -----------------------------------       ----------------------------------

TITLE: C.E.O.                            TITLE: Supply Manager
       --------------------------------         --------------------------------

DATE: 6/30/98                            DATE: 6/17/98
      ---------------------------------        ---------------------------------

                                       -6-
<PAGE>

                            CONFIDENTIALITY AGREEMENT

     FLUOROWARE, INC. ("Recipient") has requested RTP Company ("RTP") to provide
certain specific technical and other information ("Material Information") highly
confidential to RTP regarding the following RTP materials ("Materials"):

COMPOUNDS FOR STAT PRO(R) 3000 LS
---------------------------------

     Because of the extremely sensitive nature of the Material Information, this
agreement shall exclusively govern Recipient's obligations regarding use and
nondisclosure of the Material Information, whether or not labeled as
confidential. Any samples of the Material shall be deemed Confidential Samples,
use and disclosure of which are also restricted below.

     1. Recipient's Obligations

          a) Recipient will use the Material Information solely in connection
     with and for the purpose of:

          Approving RTP's materials for use in recipient's production processes
          at its facility in Chaska, MN.

     Without limitation of the foregoing, Recipient may not use the Material
     Information to produce, or assist any other person to produce products
     competitive with the Materials. Recipient shall not disclose the Material
     Information to any person outside of Recipient, whether another Recipient
     supplier, a competitor of RTP, a customer of Recipient or otherwise.

          b) Confidential Samples shall be used solely for testing in connection
     with the Permitted Purpose and in no case shall they be analyzed for
     content, sold or made available to any other person.

          c) Within Recipient, Recipient shall protect and keep confidential the
     Material Information with the highest degree of care and shall disclose it
     solely to Recipient employees with a need to know for the Permitted
     Purpose. Recipient shall be responsible for enforcing this agreement for
     the benefit of RTP.

          d) All documents containing the Material Information (whether
     delivered by RTP or prepared by Recipient) are and will remain RTP's
     property. At RTP's written request, Recipient must promptly return to RTP
     all those materials and any copies promptly at RTP's request. Recipient's
     obligations under this Agreement will last indefinitely.

     2. Exclusions. Recipient's obligations under this Agreement shall not apply
to information which:

          a. is or becomes known to the public through no fault of Recipient or
     its employees;

                                       -7-
<PAGE>

          b. is already known to Recipient prior to its receipt as shown by the
     written records of Recipient (but Recipient acknowledges that the requested
     information is not now known to Recipient); or

          c. becomes known to Recipient by disclosure from a third party who has
     a lawful right to disclose the information.

     3. Entire Agreement. This is the complete Agreement between the parties
regarding the treatment of the Material Information and Confidential Samples,
and may be changed only by a written amendment.

Recipient: FLUOROWARE, INC.                  RTP COMPANY

BY: /s/ Illegible                     BY: /s/ Illegible
    ------------------------------        --------------------------------------

TITLE: Supply Manager                 TITLE: Vice President, Business Management
       ---------------------------           -----------------------------------

DATE: 4/6/98                          DATE: April 2, 1998
      ----------------------------          ------------------------------------

                                       -8-<PAGE>

                                                                   EXHIBIT 10.20

                 AMENDED AND RESTATED DISTRIBUTORSHIP AGREEMENT

     THIS AGREEMENT is made and entered into as of the 1st day of December,
1999, by and between ENTEGRIS, INC., a Minnesota corporation ("Entegris"),
EMPAK, INC., a Minnesota corporation ("Empak"), MARUBENI AMERICA CORPORATION, a
New York corporation (the "Exporter"), and MARUBENI CORPORATION, a Japanese
corporation (the "Distributor").

                                    Recitals

     WHEREAS, Entegris has acquired all of the issued and outstanding common
stock of Empak and Fluoroware, Inc., a Minnesota corporation ("Fluoroware"),
pursuant to that certain Consolidation Agreement under the terms of which both
Empak and Fluoroware will continue to independently manufacture some or all of
their respective product lines for a limited period of time until such time as
Entegris deems it appropriate to combine the manufacturing operations and
facilities of both entities, in which case each entity may cease to exist as
independent legal entities; and

     WHEREAS, Empak, the Exporter and the Distributor have been and continue to
be parties to a distribution agreement for the distribution of products
manufactured by Empak in the territory of Japan pursuant to that certain
Distributorship Agreement dated February 28, 1997 (the "First Distributorship
Agreement"); and

     WHEREAS, Entegris is now engaged in the manufacture and world-wide
distribution of products including, but not limited to, products of similar
design, function and application to products as defined in the First
Distributorship Agreement, directly or through its subsidiaries and affiliates;
and

     WHEREAS, by virtue of the combination, Entegris has elected to distribute
products by business line rather than by manufacturer as contemplated in the
First Distributorship Agreement, according to the following business line
categories: Test Assembly and Packaging ("TAP"), Critical Fluid Management
("CFM"), Wafer Management ("WM") and Integrated Shipping Systems ("ISS"). The
foregoing business lines shall, for purposes of this Agreement, be referred to
individually and/or collectively as "Business Lines;" and

     WHEREAS, the parties have agreed to modify the First Distributorship
Agreement to provide for the distribution of products manufactured by Entegris
and/or its subsidiaries and affiliates by Business Line.

                                    Agreement

     NOW, THEREFORE, in consideration of the foregoing premises and the mutual
covenants hereinafter set forth, the parties hereto hereby agree as follows:
<PAGE>

                                    Article I
                                   Definitions

          1.1) When used in this Agreement, the following terms shall have the
     following meanings:

               (a) "Products" shall mean ISS products (multiple wafer shippers,
          disk shippers and disk process cassettes) manufactured by Entegris
          and/or its subsidiaries and affiliates.

               (b) "Territory" shall mean Japan.

               (c) "Entegris" when used herein shall refer to Entegris and/or
          Empak as the context requires until the latter's dissolution or the
          assumption of manufacturing and sales operations by Entegris.

                                   Article II
                                   Appointment

          2.1) Entegris hereby appoints the Exporter as its exclusive exporter
     to purchase and export Products into the Territory during the term of this
     Agreement. Entegris hereby appoints the Distributor as its exclusive
     distributor to sell, market and distribute Products into the Territory
     during the term of this Agreement. Provided, however, the Exporter and
     Distributor shall cease the purchase and resale of SMIF type pods to all
     customers as soon as possible, with the exception that the purchase and
     resale of 200 mm SMIF type pods to Sony, Fujitsu and Dai Nippon Printing
     may continue through August 31, 2000 at which time all sales of SMIF type
     pods shall cease. Both the Exporter and the Distributor hereby accept such
     appointment, upon the terms and conditions hereinafter set forth.

          2.2) With respect to the disk shippers and disk process cassettes
     ("Disk Products"), the list of customers in the Territory for which the
     Exporter and the Distributor shall have the exclusive right to sell the
     Disk Products shall be as set forth in Exhibit A attached hereto and made
     an integral part hereof.

                                   Article III
                                  Relationship

          3.1) The relationship between Entegris, Empak and the Exporter and
     between the Exporter and the Distributor, respectively, created hereby is
     that of vendor and vendee only, and nothing contained in this Agreement
     shall be deemed or construed as constituting one party as an agent or legal
     representative of the other party for any purpose whatsoever, or as
     conferring upon one party any right or authority to assume or create any
     obligation or responsibility, express or implied, orally or in writing, on
     behalf of or in the name of the other party or to bind the other party in
     any manner whatsoever.

                                      -2-
<PAGE>

                                   Article IV
         Prices; Minimum Order; Forecasts; Withdrawal from Manufacturing

          4.1) The prices of Products purchased by the Exporter from Entegris
     shall be as set forth in the price list attached hereto as Exhibit B and
     made an integral part hereof. Entegris shall notify the Exporter of price
     changes not later than thirty (30) days prior to the respective effective
     date thereof.

          4.2) All duties and taxes applicable to or levied on Products sold to
     the Exporter hereunder by any level of government or any subdivision,
     agency or instrumentality thereof outside the Territory shall be borne and
     paid by the Exporter. All duties and taxes applicable to or levied on
     Products sold to the Distributor hereunder by any level of government or
     any subdivision, agency or instrumentality thereof in the Territory, except
     as hereinafter specified, shall be borne and paid by the Distributor.

          4.3) From time to time, Entegris shall furnish the Distributor with a
     suggested list price of the Products (the "Suggested List Price"). Both
     parties understand that the Suggested List Price shall have the character
     of price recommendations only. The Distributor shall provide Entegris when
     requested with a report describing: (i) the quantity of each type of
     Product sold; (ii) the prices charged by the Distributor for each type of
     Product; and (iii) a description of the costs incurred by the Distributor
     related to the Products, including, but not limited to, delivery, handling
     and document preparation charges.

          4.4) Unless approved by Entegris in writing, the Distributor shall
     purchase Products in case lots only; provided, however, the Distributor may
     order less than a full case for the sole purpose of providing evaluation
     samples of the Products, in which case the Distributor shall pay fifty
     percent (50%) of Entegris' list price plus one hundred percent (100%) of
     the shipping and handling charges.

          4.5) The Distributor shall provide to Entegris, no later than thirty
     (30) days prior to the beginning of each calendar quarter a forecast of
     sales by Product for each of the next twelve (12) months. Such forecast
     shall be updated on a rolling basis each month. The Distributor agrees to
     purchase and take delivery of a minimum of three (3) months' forecasted
     sales of each Product each calendar year.

          4.6) Entegris shall receive all orders at least thirty (30) days prior
     to the date specified in such order for delivery unless the specified
     Products are already in Entegris' available-for-shipment inventory. Subject
     to raw material availability, expected normal lead-time from order
     acceptance to shipment date is three weeks. A lead-time report will be
     provided by Entegris from time to time to reflect changes in capacity
     loading. Entegris will ship earlier than three weeks if requested by a
     customer on a best efforts basis. All such orders shall be subject to
     acceptance and confirmation by Entegris.

                                       -3-
<PAGE>

          4.7) In the event the Exporter and/or the Distributor request
     modifications or cancellations on an accepted order when the Cargo Ready
     Date (C/R) is less than 30 days away, no cancellations will be allowed,
     otherwise, the Distributor shall pay a fee equal to one hundred percent
     (100%) of the aggregate purchase price of Products covered by the
     cancellation through the Exporter. If the Cargo Ready Date is greater than
     30 days but less than 60 days, the order may not be cancelled but may be
     moved out by three weeks (21 days). If Entegris delays more than two (2)
     weeks from the acknowledged Cargo Ready Date, the difference between air
     and ocean freight costs shall be borne by Entegris.

          4.8) The prices of Products sold by the Distributor in the Territory
     shall be determined by the Distributor, subject to the Distributor
     Covenants (Article VIII, 8.1, 8.5).

          4.9) Entegris may withdraw a Product from manufacture or distribution
     upon ninety (90) days notice to the Exporter and/or Distributor.

                                    Article V
                        Payment Terms; Order Cancellation

          5.1) Payment for Products purchased by the Exporter shall be made to
     average net thirty (30) days after transfer to Exporter's designated
     transfer agent or carrier, F.O.B. point of origin or Entegris' designated
     manufacturing facility. Payments will be made each month by the 15th day of
     the month for shipments occurring the previous month, provided that the
     Exporter has received invoices for such Products by the 5th day of the
     month when the payment is due and there exists no known written dispute
     with respect to such invoices. If Entegris falls to receive a payment by
     the 15th day of the month, then the Exporter shall pay a finance charge of
     two percent (2%) per month in addition for the actual number of days
     elapsed. Entegris shall provide to the Exporter a statement of any
     outstanding finance charges on a quarterly basis.

                                   Article VI
                          Delivery Terms; Risk of Loss

          6.1) The terms of shipment of Products shall be F.O.B. point of origin
     or Entegris' designated manufacturing facility, unless otherwise agreed
     upon. Risk of loss shall pass to the Exporter upon transfer to the
     Exporter's designated transfer agent or carrier.

                                   Article VII
                           Individual Purchase Orders

          7.1) Individual purchase orders shall be submitted on the Exporter's
     purchase order (the "Purchase Order") bearing its standard terms and
     conditions of sale. Notwithstanding the Exporter's published standard terms
     and conditions, Entegris' standard terms and conditions shall apply. The
     form

                                       -4-
<PAGE>

     of Entegris' or Empak's terms and conditions of purchase, as the case may
     be, are attached hereto as Exhibit C and made an integral part hereof.
     Entegris shall have, as soon as possible, but not more than seven (7) days
     after receipt of each Purchase Order to note any exceptions thereto, which
     shall be distributed to the Exporter and/or the Distributor via facsimile.

          7.2) Each Purchase Order shall be deemed to incorporate all of the
     terms and conditions of this Agreement to the extent applicable. In the
     event of conflict between the terms and conditions of this Agreement and
     the terms and conditions contained on the reverse side of said Purchase
     Order, this Agreement shall control.

                                  Article VIII
                              Distributor Covenants

          8.1) The Distributor shall use its best efforts to actively promote
     the sale and distribution of Products in the Territory, shall maintain the
     highest standards of performance in sales, service, physical facilities,
     financial responsibility and general conduct toward the public, and shall
     otherwise carry out the terms of this Agreement. The Distributor shall
     conduct its relationships with the Exporter and other affiliates in such a
     manner that the competitiveness of Products in the marketplace will not be
     negatively affected.

          8.2) The Distributor shall designate whether a Product is ordered for
     sale and delivery to a particular customer or to be held in the
     Distributor's inventory. If a Product is ordered for sale and delivery to a
     particular customer, then the Distributor covenants that it shall not sell
     and deliver the Product to another customer without prior written notice to
     Entegris. The Distributor agrees, that during the term of this Agreement,
     it shall not sell Products to any customer who the Distributor knows or
     should reasonably know intends to resell or otherwise distribute Products
     outside the Territory. In the event empty Products sold by the Distributor
     are shipped or consigned for delivery outside of the Territory without the
     consent of Entegris, whether by a customer to a third party or to the
     customer's facilities outside of the Territory, Entegris shall backcharge
     the Distributor for all commissions or other compensation due Entegris'
     local representatives or distributors, and/or Entegris may terminate this
     Agreement if the Distributor knowingly violates the Territory restrictions
     as described herein.

          8.3) The Distributor shall establish a dedicated staff of sales and
     technical personnel whose exclusive duties will involve selling, marketing
     and distributing Products in the Territory, and otherwise fulfilling the
     terms and intent of this Agreement. A schedule setting forth the names and
     titles of each such persons shall be provided in writing to Entegris within
     thirty (30) days of the date of this Agreement, and the Distributor shall
     provide Entegris an amended schedule within thirty (30) days of any change
     in the composition of such staff of sales and technical personnel. The
     sales and technical personnel selected by the Distributor shall be
     sufficient in expertise and number to sell, market and distribute Products
     and otherwise fulfill the terms and intent of this Agreement. The
     Distributor

                                       -5-
<PAGE>

     acknowledges that temporarily assigning personnel from its other operations
     shall not be sufficient for purposes of fulfilling its obligations under
     this Article 8.3.

          8.4) During the term of this Agreement, the Distributor shall, by use
     of its best efforts, prompt delivery, efficient service and otherwise,
     actively builds, maintains and develops the full sales potential for
     Products within the Territory. To the best of its efforts, the Distributor
     shall devote time to expanding the sale of Products and the Distributor
     shall cooperate with Entegris in Entegris' plans for the building,
     maintenance and expansion of such sales. The Distributor shall regularly
     solicit customers within the Territory. The Distributor shall keep Entegris
     informed of the progress of the Distributor's marketing efforts, and shall
     provide to Entegris: (i) continuous market feedback and forecasts; (ii)
     monthly activity reports; and (iii) annual customer sales plans, so that
     Entegris may schedule its manufacturing activities accordingly.

          8.5) The Distributor shall not use subdistributors in connection with
     fulfilling its obligations under this Agreement without informing Entegris
     of the identity and affiliate relationship of the subdistributor to the
     Distributor. The Distributor shall have responsibility for the actions and
     performance of its subdistributors.

                                   Article IX
                               Entegris Covenants

          9.1) Entegris shall provide the Distributor, free of charge, from time
     to time, basic information and illustrative materials for the preparation
     of catalogs and advertising and promotional literature, together with
     technical data, new Product releases, and all other sales materials
     pertinent to Products. These illustrative materials may be supplied with
     terms and conditions (including Entegris' warranty terms and disclaimers).
     However, it shall be the responsibility of the Distributor to provide
     translation and delivery of the warranty for Products as required by
     Article X.

          Product samples provided by Entegris to the Distributor shall be paid
     for on a 50/50 basis between the parties with the Distributor paying for
     the cost of shipping. Samples provided for the purpose of qualifying an
     engineering change which accrue to the benefit of Entegris shall be
     provided at no charge by Entegris.

          9.2) Entegris reserves the right to communicate directly with
     customers of Products regarding technical support or Product quality; or
     for any reason if a customer requests to directly communicate with
     Entegris.

          9.3) Entegris agrees, that during the term of this Agreement, it shall
     not sell Products to any Distributor or customer located outside the
     Territory who Entegris knows or should reasonably know intends to resell or
     otherwise distribute Products inside the Territory. In the event Products
     sold by Entegris outside the Territory are shipped or consigned for
     delivery inside the Territory, whether by a

                                       -6-
<PAGE>

     distributor or customer to a third party or to a distributor's or
     customer's facilities inside the Territory, the Distributor shall receive a
     commission equal to ten percent (10%) of Gross Sales of such Products. The
     term "Gross Sales" means gross sales of Products net of freight and other
     customarily deductible costs.

                                    Article X
                                    Warranty

          10.1) Entegris warrants that Products sold and delivered to the
     Exporter and/or the Distributor hereunder are in accordance with Entegris'
     written warranty attached hereto as Exhibit D (the "Entegris' Written
     Warranty").

          10.2) The Distributor shall provide each customer of Products with a
     copy of Entegris' Written Warranty (as translated into Japanese): (i) on
     each occasion that it delivers Products to such customers or (ii) annually,
     in a writing to the customer which contains Entegris' Written Warranty. The
     Distributor shall provide, annually, certification of compliance with the
     foregoing and a list of customers to whom the translated Written Warranty
     was provided. The Distributor shall not warrant any Empak Product beyond
     the scope of Entegris' Written Warranty, and agrees not to make any oral or
     written representations concerning Products except as approved by Entegris
     in writing from time to time.

          10.3) In the event that any Product or part thereof are found to be
     defective or not in conformity with the agreed specifications within the
     written warranty period, Entegris' sole obligation shall be to replace such
     defective or non-conforming Product(s) free of charge within sixty (60)
     days or as soon as practicable after receipt of a claim from the
     Distributor. In no event shall Entegris have any responsibility or bear any
     liability for the cost of labor for the repair of any defective Product(s),
     the removal of any defective Product(s) or the installation of any
     replacement Product(s).

          10.4) All transportation and other costs incurred in connection with
     sorting or the return of any defective or non-conforming Products or part
     thereof and the replacement therefor pursuant to the foregoing Article 10.2
     shall be borne by Entegris; provided, however, that Entegris shall not be
     responsible for any of the foregoing costs until it has issued an
     authorization order, in writing to the Distributor, authorizing the
     Distributor to (i) return such defective or non-conforming Products; or
     (ii) take other remedial action.

          10.5) Entegris shall indemnify and hold the Distributor harmless from
     and against any loss, damage, cost, expense, claim or liability which may
     be incurred by or asserted against the Distributor as a result of any
     breach of the warranty contained in Article 10.1 above; provided, however,
     that Entegris shall not be required to indemnify and hold the Distributor
     harmless from any loss, damage, cost, expense, claim or liability which may
     be incurred by or against the Distributor as a result the Distributor's
     failure to comply with Article 10.2 above.

                                       -7-
<PAGE>

          10.6) ENTEGRIS WRITTEN WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES,
     EXPRESS OR IMPLIED, WHICH ARE HEREBY DISCLAIMED AND EXCLUDED BY ENTEGRIS,
     INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS
     FOR A PARTICULAR PURPOSE OR USE AND ALL OBLIGATIONS OR LIABILITIES ON THE
     PART OF ENTEGRIS FOR DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE USE,
     REPAIR OR PERFORMANCE OF THE PRODUCTS.

                                   Article XI
                             Proprietary Information

          11.1) It is expressly understood and agreed by the parties hereto that
     all information furnished by or obtained from one party to the other party
     during the term of this Agreement including, without limitation, all
     drawings, plans, data, instructions, hardware and software, whether
     furnished in writing, orally or in physical configuration, is the
     proprietary information and constitute the trade secrets of the party who
     furnished such information or from whom the same was obtained, and shall
     not be disclosed to any third party, nor shall the same be used by the
     other party for any purpose other than the performance of its obligations
     hereunder without the prior written consent of the party who originally
     furnished such information. This obligation of confidence shall extend for
     a period of three (3) years from the date of receipt of such information.

          11.2) As an exception to the obligation of confidence contained in the
     foregoing Article 11.1, a party may disclose proprietary information to
     such of its employees or third parties as may reasonably require access to
     such information in order for the party to fulfill its obligations under
     this Agreement; provided, however, that prior to any such disclosure, the
     receiving party shall have agreed in writing to use and protect such
     information in accordance with the terms of this Agreement.

          11.3) The provisions of this Article XI shall survive the termination
     of this Agreement for whatever reason.

                                   Article XII
                          Intellectual Property Rights

          12.1) Entegris warrants that the possession, use, sale or other
     transfer of Products in the Territory by the Distributor, an end user or
     any third party will not infringe any patent, trade name, trademark,
     utility model, design, copyright or other intellectual property right
     belonging to any third party in the Territory.

          12.2) Entegris shall defend any legal action or other proceeding
     brought against the Exporter and/or Distributor insofar as such legal
     action or other proceeding is based upon a claim that Products or any part
     thereof sold and delivered hereunder infringes any patent, trade name,
     trademark, utility

                                       -8-
<PAGE>

     model, design, copyright or other intellectual property right belonging to
     any third party in the Territory. The Exporter and/or Distributor shall
     notify Entegris of such legal action or other proceeding, and shall provide
     Entegris with such assistance and cooperation in the defense thereof as
     Entegris may reasonably request. Entegris shall have sole control over any
     such legal action or other proceeding and shall indemnify and hold the
     Exporter and/or Distributor harmless from and against any loss, damage,
     cost, expense, claim or liability which may be incurred by or asserted
     against it as the result of an alleged or actual infringement of any
     intellectual property right belonging to any third party in the Territory.

                                  Article XIII
                               Term; Annual Review

          13.1) This Agreement shall supercede the First Distributorship
     Agreement and shall terminate on February 27, 2003 (the "Termination Date")
     unless terminated by either party pursuant to Article 13.2 or 13.3. In the
     event this Agreement is not renewed by mutual agreement of the parties,
     Distributor shall receive a sales commission equal to four percent (4%) of
     the Gross Sales Price of all Products sold in the Territory by Entegris,
     its employees, agents or representatives during the twelve (12) month after
     termination and two percent (2%) of the Gross Sales Price of all Products
     sold in the Territory by Entegris during the second twelve (12) month
     period after termination.

          13.2) Either party hereto may terminate this Agreement by written
     notice to such effect to the other party if the other party commits a
     material breach of any material term or condition contained in this
     Agreement and fails to initiate to remedy the same within thirty (30) days
     after notice from the party not in breach setting out the nature of such
     breach and demanding that the same be remedied.

          13.3) Either party may terminate this Agreement upon notice to such
     effect to the other party if bankruptcy, insolvency or reorganization
     proceedings or any other proceedings analogous in nature or effect are
     instituted by or against the other party; the other party is dissolved or
     liquidated, whether voluntarily or involuntarily; a receiver or trustee is
     appointed for all or a substantial part of the assets of the other party;
     or the other party makes an assignment for the benefit of creditors.

          13.4) On each annual anniversary of the Effective Date, the parties
     shall conduct a mutual review of each other's performance under this
     Agreement at such time and place as the parties mutually agree upon. The
     Distributor shall be reviewed on the basis of its adherence to the
     standards set forth in this Agreement, including, but not limited to, its
     covenants set forth in Article VIII herein, the quality and accuracy of
     market forecasts and other information required to be supplied, customer
     satisfaction and market penetration. Entegris shall be reviewed on the
     basis of its adherence to the standards set forth in this Agreement,
     including, but not limited to, its covenants set forth in Article IX
     herein, Product quality and customer service.

                                       -9-
<PAGE>

          13.5) No termination of this Agreement, for whatever reason, shall
     affect any right or liability of either party which has accrued to the
     other party prior to the date of such termination or which thereafter may
     accrue in respect of any act or omission to act committed prior to such
     termination, nor shall any such termination affect any right or obligation
     of either party which is expressly stated elsewhere in the Agreement to
     survive the termination hereof.

          Entegris shall repurchase such Products from the Distributor at a
     price equal to the original purchase price paid by the Distributor plus
     transportation costs, duties, storage, interest and other costs incurred by
     distributor importing Products in the Territory and reasonably verifiable
     by Entegris, in which event, Distributor must refrain from further sales of
     Products. Only those Products, which are new and unused, currently
     manufactured, unopened and undamaged in their original packaging, are
     eligible for repurchase. Upon termination hereunder, the Distributor shall
     provide Entegris a detailed inventory of Products for repurchase under this
     paragraph. Said inventory shall be provided within thirty (30) days and
     contain the following information: (i) Product numbers; (ii) Product
     quantities; (iii) dates of purchase; (iv) purchase price; and (v) verified
     import costs.

          13.6) Upon termination, Distributor agrees to use its best efforts to
     transition customers to Entegris. Distributor's best efforts shall include,
     but not be limited to, introducing an Entegris representative to each
     customer, providing each customer's corporate name and buyer name, relevant
     addresses, communications information, each customer's detailed purchase
     history for the two (2) year period immediately preceding the date of
     termination by date and Product number, buying volumes, historical prices
     charged therefore and any other pertinent data which is available to
     Distributor.

                                   Article XIV
                                  Force Majeure

          14.1) Neither party shall be liable in any manner for failure to
     perform or delay in performing all or any part of this Agreement or of any
     individual purchase contract entered into pursuant hereto which is directly
     or indirectly due to any cause or circumstance beyond the control of such
     party including, without limitation, acts of God, fire, flood, storms,
     earthquake, typhoon, tidal wave, plague or other epidemics, governmental
     laws, orders, regulations, sanctions or restrictions, war (whether declared
     or not), armed conflict or the serious threat of the same, hostilities,
     mobilization, blockade, embargo, detention, revolution, riot, looting,
     lockout, strike or other labor dispute, unavailability of transportation or
     severe economic dislocation.

                                   Article XV
                                  Governing Law

          15.1) This Agreement shall be governed by and construed in accordance
     with the substantive laws (but not the laws of conflict) of the State of
     Minnesota, USA.

                                      -10-
<PAGE>

                                   Article XVI
                                   Arbitration

          16.1) All disputes, controversies or differences which may arise
     between the parties hereto, out of, in relation to or in connection with
     this Agreement or any Purchase Order entered into pursuant hereto, or for
     the breach hereof or thereof, which cannot be resolved amicably by the
     parties shall be finally settled by arbitration in Minneapolis, Minnesota
     before a panel of three (3) arbitrators. Each party shall select an
     arbitrator, and the two arbitrators so chosen shall mutually choose the
     third arbitrator. The arbitration and all proceedings related thereto shall
     be conducted in the English language. Provided, however, Entegris may seek
     injunctive relief to enjoin the threatened or actual disclosure of
     proprietary information. Any attempt to seek injunctive relieve shall not
     be deemed an election of remedies and shall not bar Entegris from seeking
     other remedies or forms of relief provided by law or this Agreement.

          16.2) The award rendered therein shall be final and binding upon all
     the parties and may be reduced to a judgment in a court of competent
     jurisdiction.

          16.3) The arbitration and all proceedings related thereto and any
     award of the arbitrators shall be held in strict confidence by the parties.

                                  Article XVII
                             Covenant Not to Compete

          17.1) The Distributor and the Exporter agree that Entegris would be
     substantially harmed if the Distributor and/or the Exporter were to compete
     with Entegris by manufacturing, selling, marketing or distributing items
     which compete with Products in the Territory, except as provided by the
     terms of this Agreement. In partial consideration for the benefits provided
     to the Distributor and the Exporter hereunder, the Distributor and the
     Exporter agree that:

          (i)  During the term of this Agreement and for a period of two (2)
               years following the termination of this Agreement for whatever
               reason and for such additional period during which either of
               Marubeni Corporation or Marubeni America Corporation be and
               remain shareholders of Entegris, the Distributor and/or the
               Exporter shall not, directly or indirectly, manufacture, sell,
               market or distribute Products which are in any way competitive to
               the Products, including, but not limited to, items which are
               alternatives or which are made of materials other than plastic
               but which are marketed in competition with any of the Products;
               and

          (ii) During the term of this Agreement the Distributor and/or the
               Exporter shall not, directly nor indirectly, manufacture, sell,
               market or distribute, in the Territory,

                                      -11-
<PAGE>

               items which are alternatives or which are marketed in competition
               with any of Products.

          17.2) The Distributor and the Exporter agree that Entegris would
     suffer irreparable injury if the Distributor and/or the Exporter were to
     breach, or threaten to breach any provisions of Article 17.1. The
     Distributor and the Exporter further agree that Entegris may seek to
     enforce this covenant not to compete by applying to the United States
     District Court, District of Minnesota, Fourth Division, for injunctive
     relief pending completion of arbitration proceedings. The court shall refer
     proceedings to the arbitrators selected under Article XVII to determine
     whether any injunction issued shall remain in effect or be dissolved.

                                  Article XVIII
                                Entire Agreement

          18.1) This Agreement constitutes the entire agreement between the
     parties hereto and wholly cancels, terminates and supersedes all previous
     negotiations, agreements and commitments, whether formal or informal, oral
     or written, with respect to the subject matter hereof.

                                   Article XIX
                                   Amendments

          19.1) This Agreement shall not be amended, changed or modified in any
     manner except by an instrument in writing signed by a duly authorized
     representative of each of the parties hereto.

                                   Article XX
                                   Assignment

          20.1) This Agreement shall be binding upon and inure to the benefit of
     Entegris, the Exporter and the Distributor, and their respective successors
     and permitted assigns.

          20.2) Entegris may not assign, transfer or otherwise dispose of its
     rights or obligations under this Agreement, in whole or in part, without
     the prior written consent of the Exporter or the Distributor, which consent
     shall not be unreasonably withheld.

                                   Article XXI
                                    No Waiver

          21.1) No failure to exercise or delay in exercising any right or
     remedy under this Agreement by a party shall operate as a waiver thereof or
     of any other right or remedy which such party may have hereunder nor shall
     any single or partial exercise of such right or remedy preclude any further
     exercise thereof or of any other right or remedy which such party may have
     hereunder.

                                      -12-
<PAGE>

          21.2) The rights and remedies provided herein are cumulative and not
     exclusive of any rights and remedies provided by law, in equity or
     otherwise.

                                  Article XXII
                                  Severability

          22.1) In the event that any provision or any portion of any provision
     of this Agreement is adjudged, by an arbitration panel or a court of
     competent jurisdiction, to be invalid, illegal, or unenforceable under
     either the laws of the United States of America or the Territory, such
     provision or portion thereof shall be deemed to be deleted from this
     Agreement and the validity of the remainder of this Agreement shall remain
     unaffected thereby.

                                  Article XXIII
                                     Notices

          23.1) Except as provided in Article 7.1 with regard to Purchase
     Orders, all notices, requests or other communications required or permitted
     to be given hereunder shall be sent by registered airmail letter, postage
     prepaid, or by telecopy or telex (both with confirmation by registered
     airmail letter, postage prepaid) to the other party at the respective
     address set forth below or to such other address as may from time to time
     be notified by a party to the other party in accordance with this Article
     23.1:

          If to Entegris:

                           Entegris, Inc.
                           3500 Lyman Boulevard
                           Chaska, MN  55318
                           Attn.:  Mr. Stan Geyer, Chief Executive Officer
                           Telecopy No.:  612-556-4480

          and

                           Empak, Inc.
                           3500 Lyman Boulevard
                           Chaska, MN  55318
                           Attention:  Mr. Del Jensen, Chief Executive Officer
                           Telecopy No.:  (612) 556-4480

                                      -13-
<PAGE>

          With a copy to:

                           Robert E. Boyle & Associates, P.A.
                           7831 Glenroy Road, Suite 145
                           Bloomington, Minnesota  55439
                           Attention:  Robert E. Boyle, Esq.
                           Telecopy:  612-837-0920

          If to the Distributor:

                           Marubeni Corporation
                           4-2, Ohtemachi 1-chome
                           Chiyoda-ku, Tokyo, Japan
                           Attention:  General Manager, Electronic Materials
                             Department
                           Telecopy No.:  03-3282-4201

          If to the Exporter:

                           Marubeni America Corporation
                           450 Lexington Avenue
                           New York, New York  10017
                           Attention:  General Manager, Plastics Division
                           Telecopy No.:  (212) 450-0791

          23.2) All notices shall be deemed to have been given when duly
     transmitted by telex or telecopy or deposited in the mail.

                                  Article XXIV
                                  Counterparts

          24.1) This Agreement may be executed in one or more counterparts, each
     of which shall be deemed an original, but all of which together shall
     constitute one and the same instrument.

                                      -14-
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their respective, duly authorized representatives as of the day and
year first above written.

ENTEGRIS, INC.                           EMPAK, INC.

By: /s/ Stan Geyer                       By: /s/ Stan Geyer
    ------------------------------          ------------------------------------
    Its: President/CEO                      Its: President/CEO
        --------------------------               -------------------------------

The Distributor:                         The Exporter:

MARUBENI CORPORATION                     MARUBENI AMERICA CORPORATION

By: /s/ Illegible                        By: /s/ Illegible
   -------------------------------           -----------------------------------
   Its: General Manager                      Its: Senior Vice President
        --------------------------                ------------------------------
        Electronic Materials Dept.
        --------------------------

                                      -15-

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