Document:

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                                                                    EXHIBIT 10.1

                       Manufacturing and Supply Agreement

          This Manufacturing and Supply Agreement ("Agreement") is dated as of
March 28, 2001 and is between Amerigon Incorporated, a California corporation,
with offices located at 5462 Irwindale Avenue, Irwindale, California 91760
("Amerigon") and FerrotecCorporation, with offices located at Sumitomo Bldg. #6,
5-24-8 Higashi Ueno, Taito-ku, Tokyo 110, Japan ("Ferrotec").

I.  Recitals
    --------

     WHEREAS, Amerigon and Ferrotec desire to enter into this Agreement to set
forth certain binding obligations of Amerigon and Ferrotec with respect to, and
the general terms and conditions of, an exclusive supplier arrangement pursuant
to which Amerigon receives a fee of US$ 2,000,000 and enters into a Common Stock
Subscription Agreement with Ferrotec (the "Subscription Agreement"), as set
forth in Section 11.2 of this Agreement, and Ferrotec receives the exclusive
rights for the Term (as defined in Section 10.1 of this Agreement) to
manufacture in the countries and geographic territories described in Exhibit A
to this Agreement (the "Territory") Amerigon Climate Control Seat System units
("CCS Units") for distribution by Amerigon to automotive parts manufacturing
facilities located in the Territory with the understanding that the parties
shall negotiate to enter into a joint venture for the marketing, sales and
distribution of CCS Units in the Territory.

     NOW THEREFORE, in consideration of the mutual promises contained in this
Agreement and for other good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, and intending to be legally bound,
Amerigon and Ferrotec agree as follows:

II.  Statement of Work
     -----------------
2.1  Manufacturing:

     (a)  Ferrotec shall manufacture in the Territory and shall supply to
          Amerigon all of the CCS Units required to be distributed by Amerigon
          to automotive parts manufacturing facilities located in the Territory,
          as set forth in the Production Schedule defined in Article IV of this
          Agreement (the "Production Schedule") or in purchase orders generated
          from time to time by Amerigon.

     (b)  Ferrotec shall purchase any and all parts necessary to manufacture and
          supply the CCS Units in accordance with the Production Schedule.

     (c)  Ferrotec shall provide to Amerigon CCS Units that are technologically
          equal to or better than any competitive product that can be
          substituted for the CCS Unit. Ferrotec shall manufacture and supply to
          Amerigon CCS Units that meet, at all times, the acceptance
          requirements and quality
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          standards specified by Amerigon from time to time with respect to CCS
          Units. Amerigon may, at its sole discretion and without breaching this
          Agreement, periodically conduct tests of CCS Units manufactured by
          Ferrotec and perform other studies to ensure that the technology,
          price and quality of the CCS Units manufactured by Ferrotec remain
          competitive.

     (d)  Ferrotec shall deliver CCS Units in a timely manner at the time
          specified in purchase orders generated from time to time by Amerigon
          or at the time specified in the Production Schedule.

     (e)  Ferrotec shall establish and adhere to local production capability
          requirements that are either required by law, regulation, or other
          government action or are otherwise necessary to avoid adverse economic
          impacts such as import or other tariffs.

     (f)  Ferrotec shall pay Amerigon the costs incurred by Amerigon associated
          with the purchase, delivery and installation and break-in at
          Ferrotec's facilities of the production equipment (the "Production
          Equipment") and related engineering and training services necessary
          for Ferrotec to commence production of CCS Units.

     (g)  Ferrotec shall obtain the prior written approval of Amerigon before
          changing any processes or specifications used in connection with the
          manufacture of CCS Units.

     (h)  Ferrotec shall not, under any circumstances or for any reason, sell,
          or in any other manner dispose of, any of the CCS Units or other
          machinery or equipment provided by Amerigon related to the manufacture
          of the CCS Units, or any parts or components thereof, in any manner
          other than to Amerigon, without Amerigon's written consent.

     (i)  If Ferrotec knows or has reason to believe that Ferrotec will not be
          able to supply all of the CCS Units required to be distributed by
          Amerigon in the Territory in any period, Ferrotec shall provide notice
          to Amerigon as soon as possible and in any event sufficiently in
          advance of such period to allow Amerigon to locate another source of
          CCS Units for such period.

     (j)  Ferrotec shall pay Amerigon any costs incurred by Amerigon caused by
          Ferrotec's inability to supply all of the CCS Units required to be
          distributed by Amerigon in the Territory in any period. Specifically,
          Ferrotec shall pay Amerigon:

          (1)  the difference between (i) the aggregate price paid by Amerigon
               to third parties for the manufacture and supply to Amerigon of
               (or the costs to Amerigon, including allocated overhead, to
               produce) CCS Units manufactured by third parties to replace the
               CCS Units not

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               supplied by Ferrotec (the "Substitute Units") and (ii) the
               aggregate price payable by Amerigon of the CCS Units not supplied
               by Ferrotec;

          (2)  any additional shipping charges and applicable duties and tariffs
               paid by Amerigon with respect to Substitute Units;

          (3)  all brokerage fees or agents' commissions paid by Amerigon with
               respect to Substitute Units.

     Notwithstanding any other provision of this Agreement to the contrary,
Ferrotec shall not delegate or attempt to delegate any of its obligations
pursuant to this Section 2.1 to a third party without Amerigon's prior written
consent. Amerigon's consent to such delegation may be conditioned on receipt by
Amerigon of evidence reasonably satisfactory to it that (i) such third party
shall abide by all of the restrictions imposed on Ferrotec by this Agreement,
and (ii) the ability of such third party to perform the delegated duties is at
least equivalent to the ability of Ferrotec to perform the delegated duties. To
the extent Ferrotec is unable to identify a third party acceptable to Amerigon,
Ferrotec shall be responsible for the manufacturing the CCS Units at its own
principal manufacturing facility.

2.2  Purchasing:

     (a)  Amerigon shall purchase from Ferrotec all of the CCS Units required to
          be distributed by Amerigon to automotive parts manufacturing
          facilities located in the Territory, provided such CCS Units are
          delivered in a timely manner and meet Amerigon's acceptance
          requirements and quality standards.

     (b)  Amerigon shall purchase the CCS Units for an initial price per CCS
          Unit agreed upon by Amerigon and Ferrotec, with mutually agreed upon
          price reductions to be determined during the Term. Ferrotec's prices
          for CCS Units shall, during the Term, be competitive, in the good
          faith determination of Amerigon, with any product offered by other
          suppliers offering features similar to those of the CCS Units.

     (c)  Without limiting any other right or remedy available to Amerigon
          pursuant to this Article II, if Ferrotec fails to supply sufficient
          CCS Units of the quality set forth in this Agreement and in the manner
          and at the time set forth in purchase orders or the Production
          Schedule, Amerigon shall have the absolute right to purchase or
          otherwise acquire from third parties or to manufacture for its own
          account, alternative products to use by it in lieu of the CCS Units
          that were to be supplied by Ferrotec.

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III.  Cost
      ----

     Ferrotec shall pay Amerigon US$ 2,000,000 (the "Royalty") by wire transfer
in immediately available funds to an account designated by Amerigon.  Ferrotec
shall also enter the Subscription Agreement.

IV.  Production Schedule; Commencement of Manufacturing
     --------------------------------------------------

     Every six months, Amerigon and Ferrotec shall prepare a mutually acceptable
detailed twelve month production schedule (the "Production Schedule") for the
manufacture of the CCS Units.  Ferrotec shall not commence the manufacture of
any CCS Units until Ferrotec receives written authorization permitting Ferrotec
to manufacture such CCS Units from Amerigon and/or the automobile manufacturers
and/or automotive parts manufacturers that will be the ultimate purchasers of
such CCS Units.

V.  Product Warranty
    ----------------

     Ferrotec warrants that CCS Units manufactured pursuant to Section 2.1 of
this Agreement shall, under reasonably anticipated use and conditions, meet all
of the specifications and other requirements developed and accepted by Amerigon
and Ferrotec and delivered to the other party pursuant to Article II of this
Agreement.  Ferrotec further warrants that each CCS Unit shall be free from
defects in material and workmanship.  With respect to parts and materials
manufactured by third parties and incorporated by Ferrotec in the CCS Units,
such parts and materials shall be covered only by the warranty of the
manufacturer thereof and Ferrotec shall assign to Amerigon any such warranty.

VI.  Grant of Licenses
     -----------------

     6.1  Definitions. For purposes of this Agreement, the following definitions
          shall apply:

          "Amerigon's Technology" shall mean that portion of Amerigon's
     Intellectual Property Rights, together with the tangible and intangible
     property to which such Intellectual Property Rights relate, used in or in
     connection with the manufacture of the CCS Units.

          "Ferrotec's Technology" shall mean that portion of Ferrotec's
     Intellectual Property Rights, together with the tangible and intangible
     property to which such Intellectual Property Rights relate that is not
     Amerigon's Technology and is used in or in connection with the
     manufacturing of the CCS Units.

          "Intellectual Property Rights" shall mean (a) those patents, design
     patents and other industrial property rights (excluding trademarks)
     relating to the manufacture of the CCS Units, which are owned by the
     licensing party or under which the licensing party is entitled to grant
     license to the other party; and (b) trade secrets, technical information,
     know how, data, formula and knowledge relating to the manufacture of the
     CCS Units

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     (except as set forth in clause (a) of this definition), including but not
     limited to designs, drawings, standards, specifications, technical records,
     material lists, process manuals and direction maps, all solely to the
     extent relating to the manufacture of the CCS Units, which are owned by the
     licensing party or under which the licensing party is entitled to grant
     license or permission to use to the other party.

     6.2  The Amerigon License

          Subject to the terms of this Agreement and only during the Term,
     Amerigon grants to Ferrotec an indivisible, terminable, non-transferable
     license, without the right to export or grant sublicenses (the "License")
     to use, and under, that portion, and only that portion, of Amerigon's
     Technology which is necessary to perform Ferrotec's obligations under this
     Agreement, solely and exclusively for the purpose of manufacturing in the
     Territory of the CCS Units required to be distributed by Amerigon to
     automotive parts manufacturing facilities located in the Territory.

     6.3  Limitations on Grant of the Amerigon License

          All grants of rights by Amerigon to Ferrotec to use Amerigon's
     Technology intended to be accomplished by this Agreement are specifically
     stated in this Agreement and no additional rights are granted or may be
     inferred or created by implication.  Without limiting the generality of the
     foregoing, Ferrotec acknowledges and agrees that it does not have any right
     to, and that it shall not:

         (a)  sublicense, grant any other rights in or with respect to, or take
              any actions which could result in the encumbrance of or damage to
              Amerigon's Technology;

         (b)  use or disclose Amerigon's Technology for any use other than that
              specified in Section 6.1 hereof;

         (c)  make any modifications to, or derivatives from, Amerigon's
              Technology;

         (d)  make any copies of Amerigon's Technology; or

         (e)  attempt to reverse engineer, disassemble, reverse translate,
              decompile or in any other manner decode Amerigon's Technology used
              or contained in the CCS Units in order to derive the source code
              or object code thereof or for any other reason.

     6.4  The Ferrotec License.

         (a)  Subject to the terms of this Agreement and only during the Term,
              Ferrotec grants to Amerigon an indivisible, terminable, non-
              transferable license, without the right to export or grant
              sublicenses (the "Ferrotec License") to use, and under, that
              portion, and only that portion, of Ferrotec's

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              Technology which is necessary to perform Amerigon's obligations
              under this Agreement.

         (b)  Ferrotec hereby grants to Amerigon a non-exclusive, fully paid,
              right and license to use any General Manufacturing Technology (as
              defined in Section 7) conceived or developed hereunder. The
              license granted in this Section will survive the termination of
              this Agreement for whatever reason.

VII. Proprietary Rights and Protection
     ---------------------------------

     7.1  Amerigon's Ownership Rights

         (a)  Amerigon shall own all rights in and to Amerigon's Technology,
              including, but not limited to, the Intellectual Property Rights
              associated therewith.

         (b)  Amerigon shall also own all rights, including, but not limited to,
              the Intellectual Property Rights, in and to the CCS Units, all
              components thereof and any parts of all such components including,
              without limitation the form factor and all other components of the
              CCS Units and parts of such components manufactured by Ferrotec in
              connection with the performance of Ferrotec's obligations under
              this Agreement.

         (c)  Amerigon shall own all rights to any technology developed
              individually or jointly by the parties hereto relating to the
              performance of the obligations hereunder which is (i) derived
              from, derivative of, or based upon Amerigon's Technology or
              Amerigon's Confidential Information, (ii) related to the CSS Unit
              or the manufacture thereof, or (iii) developed by Amerigon or
              jointly by Amerigon and Ferrotec under this Agreement (the
              "Developed Technology"), and Ferrotec hereby assigns to Amerigon
              Ferrotec's entire right, title and interest in and to Developed
              Technology, including without limitation the right of priority to
              file and prosecute corresponding applications in any and all
              countries, the rights to any divisions, continuations, reissues
              and extensions with respect thereto, and any right of Ferrotec to
              sue and recover damages for any infringement of any Developed
              Technology. Ferrotec shall own all rights to any intellectual
              property developed exclusively by Ferrotec that is not Developed
              Technology and which is developed without the use or assistance of
              Amerigon or Amerigon Technology ("General Manufacturing
              Technology"). Ferrotec agrees to take such further action and to
              execute such documents as Amerigon may reasonably request to
              effect or confirm the conveyance to Amerigon of the Developed
              Technology and any improvements thereunder.

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         (d)  No trademark license is granted by this Agreement, and Ferrotec
              shall not use in any manner any of the trademarks or trade names
              of Amerigon.

     7.2  Ferrotec's Ownership Rights

          Except as set forth in Section 7.1, Ferrotec shall solely own all
     rights in and to Ferrotec's Technology, including, but not limited to, the
     Intellectual Property Rights associated therewith.

VIII.  Representations, Warranties, and Indemnification
       ------------------------------------------------

     8.1  By Amerigon

          Amerigon represents and warrants that Amerigon's Technology does not
     infringe any patent, copyright, trademark or other Intellectual Property
     Right of any third-party.  Amerigon shall settle and/or defend at its own
     expense and indemnify, and hold harmless Ferrotec, from and against any
     cost, loss or damage arising out of any claim, demand, suit or action
     against Ferrotec to the extent such claim, demand, suit or action alleges
     that Amerigon's Technology infringes upon any Intellectual Property Right
     of any third party, provided that (1) Ferrotec promptly informs Amerigon in
     writing of any such claim, demand, suit or action and, where applicable,
     provides Amerigon with a copy of any demand or complaint with respect
     thereto, (2) Amerigon is given control over the defense or settlement
     thereof and Ferrotec cooperates, at Amerigon's expense, in such defense or
     settlement, and (3) Ferrotec does not agree to the settlement of any such
     claim, demand, suit or action prior to a final judgment thereon without the
     prior written consent of Amerigon, which consent shall not be unreasonably
     withheld.  Ferrotec shall have the right to select its own counsel to
     participate in any such defense at Ferrotec's expense.

     8.2  By Ferrotec

          Ferrotec represents and warrants that (a) Ferrotec's Technology does
     not infringe by patent, copyright, trademark or other Intellectual Property
     Rights of any third party, (b) the performance of its obligations hereunder
     does not, and the performance of its obligations in connection with the
     Production Schedule shall not, in each case, including without limitation,
     its manufacture and supply of the CCS Units to Amerigon, whether with or
     without notice and/or the passage of time, violate Intellectual Property
     Rights of any third party, (c) the CCS Units shall be manufactured in a
     good and workmanlike manner, (d) Ferrotec shall comply with local
     production capability requirements as set forth in Section 2.1(e), and (e)
     the CCS Units shall, under reasonably anticipated conditions and use,
     conform to and operate in accordance with the specifications and other
     requirements identified in Section 2.1 hereof.  Ferrotec shall settle
     and/or defend at its own expense and indemnify, and hold harmless Amerigon,
     from and against any cost, loss or damage arising out of any claim, demand,
     suit or action of any kind made by a third party against Amerigon and
     arising out of or in connection with the use of the CCS Units (except with
     respect to defects in the design or functionality of Amerigon's
     Technology), provided that (1) Amerigon promptly informs Ferrotec in
     writing of any

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     such claim, demand, suit or action and, where applicable, provides Ferrotec
     with a copy of any demand or complaint with respect thereto, (2) Ferrotec
     is given control over the defense or settlement thereof and Amerigon
     cooperates, at Ferrotec's expense, in such defense or settlement, and (3)
     Amerigon does not agree to the settlement of any such claim, demand, suit
     or action prior to a final judgment thereon without the prior written
     consent of Ferrotec, which consent shall not be unreasonably withheld.
     Amerigon shall have the right to select its own counsel to participate in
     any such defense at Amerigon's expense. Notwithstanding the foregoing,
     Ferrotec shall have no liability pursuant to this Section 8.2 if, and to
     the extent that, Ferrotec can demonstrate that its action or inaction was
     done at the direction of Amerigon.

IX.  Confidentiality
     ---------------

     9.1  Confidential and Proprietary Information

          "Confidential and Proprietary Information" of any party means all
     trade secrets, Intellectual Property Rights, Developed Technology and other
     confidential and/or proprietary information, reports, investigations,
     research, work in progress, source codes, object codes, marketing and sales
     programs, financial projections, cost summaries, pricing formula, contracts
     analyses, financial information, projections, confidential filings with any
     international, federal or state agency, and all other confidential
     concepts, methods of doing business, ideas, materials or information
     prepared or performed by or on behalf of such party by its employees,
     officers, directors, agents, representatives, or consultants, unless such
     information is not a trade secret and (a) was in the possession of the
     party receiving such information (the "Receiving Party") prior to
     disclosure hereunder; (b) was disclosed by a third party without breach of
     any obligation of confidentiality owed to the party disclosing such
     information ( the "Disclosing Party"); (c) was independently developed by
     personnel of the Receiving Party having no access to Confidential and
     Proprietary Information; or (d) became known or available to the public
     generally through no wrongful act of either party.  Ferrotec acknowledges
     that the term Confidential and Proprietary Information when applied to
     Amerigon shall include any of the foregoing types of information developed
     by Ferrotec while performing services pursuant to this Agreement.

     9.2  Disclosure

          Each Receiving Party shall not disclose to third parties nor use for
     any purpose other than for the proper fulfillment of the purposes of this
     Agreement any Confidential and Proprietary Information received from the
     Disclosing Party in whatever form under or in connection with this
     Agreement without the prior written permission of the Disclosing Party save
     for Confidential and Proprietary Information which is required by any
     international, federal or state statute, rule or regulation or the order of
     any court of competent jurisdiction or governmental entity, in each case
     applicable to the Disclosing Party, provided, that prior to disclosing any
     Confidential and Proprietary Information pursuant to such international,
     federal or state statute, rule, regulation or order, the Disclosing Party
     shall give prior written notice thereof to the Receiving Party, together

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     with a copy of any request or subpoena seeking disclosure of such
     information received and provided the Receiving Party with the opportunity
     to contest such disclosure.

     9.3  Affiliates

          Affiliates of a Party hereto engaged in the performance of this
     Agreement shall not be deemed to be third parties for the purposes of this
     Article IX so long as the respective Party ensures full compliance by such
     affiliates with all of the provisions of this Article IX.  Notwithstanding
     the foregoing, each Party shall be liable for the failure of any affiliate
     to whom such Party discloses such Confidential and Proprietary Information
     to comply with the provisions of this Article IX to the same extent as if
     such Party had itself failed to comply with the provisions of this Article
     IX.

     9.4  Personnel

          Each party shall limit access to Confidential and Proprietary
     Information to those of its personnel and the personnel of its affiliates
     for whom such access is reasonably necessary for the proper performance of
     this Agreement and obtain written undertakings of confidentiality from
     them.

     9.5  Duration

          The obligation to treat information as Confidential and Proprietary
     Information shall, with respect to each piece of information, continue so
     long as such piece of information continues to meet the definition of
     Confidential and Proprietary Information as set forth in this Article IX.

     9.6  Consent to Disclosure of the Terms of this Agreement

          Neither party shall provide a copy of, or disclose any of the terms or
     conditions of, this Agreement without the prior written permission of the
     other party, except as otherwise required by any international, federal or
     state statute, including the United States federal securities laws, rule or
     regulation or the order of any court of competent jurisdiction or
     governmental entity.

X.   Term and Termination
     --------------------

     10.1  Term

          The period of effectiveness of this Agreement (the "Term") shall
     commence at 12:00 am (Los Angeles time) on April 1, 2001 and shall extend
     until 12:00 am (Los Angeles time) on April 1, 2011 (the "Initial Term")
     and, thereafter, the Term shall automatically extend for successive one-
     year periods, unless this Agreement is sooner terminated as provided in
     this Agreement.

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     10.2  Termination for Breach

          Subject to Section 10.6, each party shall have the right to terminate
     this Agreement if the other Party fails to remedy any breach of a warranty,
     representation or covenant contained in this Agreement within 30 days of
     receipt of written notice of the breach.

     10.3  Termination for Competitive Reasons

          If during the Term, (a) the quality of the CCS Units manufactured by
     Ferrotec deteriorates below the acceptance requirements and quality
     standards specified by Amerigon with respect to the CSS Units, or (b) the
     technology, price or quality of the CCS Units manufactured by Ferrotec does
     not remain competitive, in each case as determined by Amerigon in good
     faith, Amerigon may immediately terminate this Agreement in whole or in
     part without further liability.  Amerigon shall provide written notice to
     Ferrotec which outlines its causes for termination and specifies a
     termination date at least three months after the date of the notice.  If
     Ferrotec demonstrates to Amerigon, at least one month prior to the
     specified date of termination, that Ferrotec shall correct the causes by
     the termination date or a subsequent date acceptable to Amerigon,
     termination shall be suspended and this Agreement shall continue in
     accordance with the terms hereof.  Termination of this Agreement pursuant
     to the termination rights set forth in this Section 10.3 does not negate,
     vitiate, or otherwise affect Ferrotec's obligations with respect to CCS
     Units previously supplied, including without limitation all warranty
     obligations.

     10.4  Termination after Initial Term.

          Either party may terminate this Agreement for any reason, if the other
     party receives written notice of termination at least one year prior to the
     date of termination; provided, however, that the earliest date of
                          --------
     termination permitted pursuant to this Section 10.4 shall be the day after
     expiration of the Initial Term.

     10.5  Bankruptcy

          Either party shall have the right to terminate this Agreement if a
     decree or order by a court having jurisdiction over the other party shall
     have been entered adjudging the other party bankrupt or insolvent, or
     approving as properly filed a petition seeking reorganization,
     readjustment, arrangement, composition or similar relief for or in respect
     of the other party under the federal bankruptcy laws, or any other similar
     applicable federal or state law, and such decree or order shall have
     continued undischarged and unstayed for a period of 60 days; or a decree or
     order of a court having jurisdiction over the other party for the
     appointment of a liquidator or trustee or assignee in bankruptcy or
     insolvency of the other party, or for the winding up or liquidation of the
     other party's affairs, shall have been entered, and such decree or order
     shall have remained in force, undischarged and unstayed for a period of 60
     days; or the other party shall institute proceedings to be adjudicated a
     voluntary bankrupt, or insolvent or shall consent to the

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     filing against it of a proceeding under the federal bankruptcy laws, or any
     other similar applicable federal or state law, or shall file a petition or
     answer or consent seeking reorganization, readjustment, arrangement,
     composition or similar relief under the federal bankruptcy laws, or any
     other similar applicable federal or state law, or admit its inability to
     pay its debts as they become due or the making by it of an assignment for
     the benefit of creditors.

XI.  Joint Venture Agreement;  Subscription Agreement.
     -------------------------------------------------

     11.1  Joint Venture Agreement

          It is the intention of Amerigon and Ferrotec to enter into a Joint
     Venture Agreement (the "Joint Venture Agreement") for the purpose of
     purchasing, marketing, selling and distributing the CCS Units in the
     Territory.  The terms of the Joint Venture Agreement shall be negotiated by
     Amerigon and Ferrotec in good faith subsequent to the commencement of this
     Agreement and shall contemplate that each party shall contribute capital to
     the formation of the Joint Venture.

     11.2  Common Stock Subscription Agreement.

          As additional consideration for the rights exchanged in this
     Agreement, Amerigon and Ferrotec have entered into the Subscription
     Agreement, whereby Amerigon sold to Ferrotec, and Ferrotec purchased,
     200,000 shares of Amerigon common stock, no par value per share, at a
     purchase price of US$ 5.00 per share.

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XII. Miscellaneous Provisions
     ------------------------

     12.1  No Obligations; License. Nothing contained in this Agreement shall be
           construed as (a) requiring either party to purchase, manufacture or
           develop any CCS Units not specifically identified in this Agreement
           or a purchase order or Production Schedule delivered pursuant to this
           Agreement; (b) requiring either party to discuss, negotiate or
           consummate the terms of a subsequent supply agreement; or (c)
           transferring the ownership of the Intellectual Property Rights now or
           hereafter owned by one party to the other party except as set forth
           in Section 7.1(c) of this Agreement.

     12.2  Independent Advice. The parties have read this Agreement, have had
           the benefit of their own legal counsel regarding this Agreement, or
           an opportunity to so obtain said benefit, and hereby warrant,
           represent, and agree that they understand all of the terms of this
           Agreement and that they are voluntarily executing the same of their
           own free will.

     12.3  Parties Bear Own Expenses. Each party shall each bear its own
           expenses incurred in negotiating, preparing and signing this
           Agreement.

     12.4  Further Assurances. The parties shall perform any further acts and
           execute and deliver any documents that may be reasonably necessary to
           carry out the intent of this Agreement.

     12.5  Integration. This Agreement, and all appendices and exhibits attached
           hereto, shall constitute the final, complete and exclusive agreement
           and understanding by and between the parties, and supersedes all
           prior or contemporaneous written or oral agreements. To the extent
           there is a conflict between the terms of an appendix or exhibit
           attached hereto and the terms of this Agreement, the terms of this
           Agreement shall control. The parties each acknowledge that there are
           no representations, warranties, agreements, arrangements or
           understandings other than as expressly contained in this Agreement
           and the appendices and exhibits attached hereto.

     12.6  Assignment and Transfer:

          (a)  Amerigon shall have the right to assign its rights and interests
               and delegate its obligations with respect to the purchase of the
               CCS Units manufactured by Ferrotec hereunder to any third party
               assignee whose financial condition and creditworthiness is at
               least equivalent to Amerigon's financial condition and
               creditworthiness at the time of execution of this Agreement.

          (b)  Ferrotec shall not have the right to assign its rights and
               benefits or delegate its obligations under this Agreement without
               the prior written consent of Amerigon.

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     12.7  Partial Invalidity. If, at any time, any provision hereof is or
           becomes illegal, invalid or unenforceable in any respect under the
           law of any jurisdiction, neither the legality, validity or
           enforceability of the remaining provisions hereof, nor the legality,
           validity or enforceability of such provision under the law of any
           other jurisdiction shall in any way be affected or impaired thereby.

     12.8  Counterparts. This Agreement may be executed in one or more
           counterparts all of which together shall constitute one and the same
           Agreement.

     12.9  Interpretation. Parties have each agreed to the use of the particular
           language of the provisions of this Agreement, and any question of
           doubtful interpretation shall not be resolved by any rule of
           interpretation providing for interpretation against a party who
           causes an uncertainty to exist or against the draft herein.

    12.10  Amendments and Modifications. This Agreement, any Exhibits,
           Appendices or any other attachments to this Agreement, and any
           purchase order or Production Schedule delivered pursuant to the terms
           of this Agreement may be amended or modified in writing only, signed
           by the parties to be charged or bound by such amendment or
           modifications.

    12.11  Remedies and Waivers. No failure to exercise, nor any delay in
           exercising, on the part of either party, any right or remedy
           hereunder shall operate as a waiver thereof, nor shall any single or
           partial exercise of any right or remedy prevent any further or other
           exercise thereof or the exercise of any other right or remedy.

    12.12  Notices. Any notice given by one party to the other shall be deemed
           properly given if specifically acknowledged by the receiving party in
           writing, upon receipt by the recipient by overnight delivery,
           messenger delivery or registered mail to the following addresses (or
           such other address as may be notified in writing from time to time by
           either party) or if made by telex, telecopy or facsimile
           transmission, at the time that receipt thereof has been acknowledged
           by electronic confirmation or otherwise:

           If to Amerigon:
               Amerigon Incorporated
               5462 Irwindale Avenue
               Irwindale, CA  91706
               Attention:  Richard Weisbart
               Facsimile No.:  (626) 815-7441

           with a copy to:
               O'Melveny & Myers LLP
               400 South Hope Street
               Los Angeles, CA 90071-2899
               Attention:  John Laco, Esq.
               Facsimile No.:  (213) 430-6407

                                       13
<PAGE>

           If to Ferrotec:
               Ferrotec Corporation
               Sumitomo Bldg. #6,
               5-24-8 Higashi Ueno Taito-ku,
               Tokyo 110, Japan
               Facsimile No.:

           with a copy to:
               Attention:
               Facsimile No.:

    12.13  Applicable Law. This Agreement shall be governed by and construed in
           accordance with the laws of the State of California without regards
           to its choice of law provision.

    12.14  Jurisdiction. Each party to this Agreement hereby irrevocably agrees
           that any legal action or proceeding arising out of or relating to
           this Agreement or any agreements or transactions contemplated hereby
           may be brought in the courts of the State of California or of the
           United States of America located in the Central District of
           California and hereby expressly submits to the personal jurisdiction
           and venue of such courts for the purposes thereof and expressly
           waives any claim of improper venue and any claim that such courts are
           an inconvenient forum. Each party hereby irrevocably consents to the
           service of process of any of the aforementioned courts in any such
           suit, action or proceeding by the mailing of copies thereof by
           registered or certified mail, postage prepaid, to the address set
           forth in Section 12.12 such service to become effective 10 days after
           such mailing.

    12.15  Waiver of Jury Trial. To the extent permitted by applicable law,
           Ferrotec and Amerigon irrevocably waive their respective rights to a
           jury trial with respect to any action, claim or other proceeding
           arising out of any dispute in connection with this agreement, any
           rights or obligations hereunder or thereunder, or the performance of
           such rights and obligations.

                                       14
<PAGE>

          IN WITNESS WHEREOF, the Parties have executed this Agreement on the
date first above mentioned.

Amerigon Incorporated                        Ferrotec Corporation

/s/ Richard Weisbart                         /s/ Akira Yamamura
--------------------------                   ------------------------------
Name:  Richard A. Weisbart                   Name:  Akira Yamamura
Title:  President and CEO                    Title:  President and CEO

                                       15
<PAGE>

                                                                           DRAFT

                                   EXHIBIT A
                                   ---------

     The countries included in the Territory are China, Japan, Taiwan, Korea,
India, Thailand, Vietnam, Malaysia, Indonesia, and the Philippines.

                                  Exhibit A-1<PAGE>

                                                                    EXHIBIT 10.2
                             AMERIGON INCORPORATED

                      COMMON STOCK SUBSCRIPTION AGREEMENT

          THIS COMMON STOCK SUBSCRIPTION AGREEMENT (this "Agreement") is entered
into as of March 29, 2001, by and among Amerigon Incorporated, a California
corporation (the "Company"), and Ferrotec Corporation, a Japanese corporation
(the "Purchaser").

                                    RECITALS

          WHEREAS, the Company has authorized the sale and issuance of an
aggregate of 200,000 shares of its Common Stock (the "Shares") in a private
placement pursuant to Regulation S under the Securities Act of 1933;

          WHEREAS, Purchaser desires to purchase, and the Company desires to
issue and sell, the Shares on the terms and conditions set forth herein; and

          WHEREAS, the Company and Purchaser are concurrently entering into a
Manufacturing and Supply Agreement (the "Manufacturing Agreement") in
conjunction with this Agreement;

          NOW, THEREFORE, in consideration of the foregoing recitals and the
mutual promises hereinafter set forth, the parties hereto agree as follows:

SECTION 1.  PURCHASE AND SALE OF STOCK.

          1.1  Authorization of Shares.  The Company has authorized the sale and
issuance to Purchaser of the Shares.

          1.2  Sale and Purchase.  Subject to the terms and conditions hereof,
the Company hereby agrees to issue and sell to Purchaser, and Purchaser agrees
to purchase from the Company, the Shares.  In exchange for the Shares, Purchaser
shall pay to the Company an aggregate purchase price of US $1,000,000 (the
"Purchase Price") or US $5.00 per Share.

SECTION 2.  CLOSING.

          2.1  Closing.  The closing of the sale and purchase of the Shares
under this Agreement (the "Closing") will take place at the offices of the
Purchaser on the date the Purchase Price is paid by the Purchaser and the Shares
are delivered by the Company (such date is hereinafter referred to as the
"Closing Date").

          2.2  Delivery.  At the Closing, subject to the terms and conditions
hereof, the Company will deliver to Purchaser certificates representing the
number of Shares to be purchased at the Closing by Purchaser, against payment of
the Purchase Price by check or wire transfer made payable to the order of the
Company, or any combination of the foregoing.

                                       1
<PAGE>

SECTION 3.  REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE COMPANY.

          The Company hereby represents, warrants and covenants to Purchaser as
follows:

          3.1  Organization, Good Standing, Corporate Power, Qualification and
Subsidiaries.  The Company is a corporation duly organized, validly existing and
in good standing under the laws of the State of California.  The Company has all
requisite corporate power and authority to own and operate its properties and
assets, to execute and deliver this Agreement, to issue and sell the Shares and
to carry out the provisions of this Agreement and to carry out its business as
presently conducted and as presently proposed to be conducted.  The Company is
duly qualified and is authorized to do business and is in good standing as a
foreign corporation in all jurisdictions in which the nature of its activities
and of its properties (both owned and leased) makes such qualification
necessary, except for those jurisdictions in which failure to do so would not
have a material adverse effect on the Company or its business.

          3.2  Due Authorization and Issuance.  The Shares have been duly
authorized for issuance and sale to Purchaser pursuant to this Agreement, and,
when issued and delivered by the Company against payment therefor in accordance
with the terms of this Agreement, will be duly and validly issued and fully paid
and nonassessable, and will be sold free and clear of any pledge, lien, security
interest, encumbrance, claim or equitable interest.  No further approval or
authorization of any shareholder or the Board of Directors of the Company is
required for the issuance and sale or transfer of the Shares.

          3.3  Authorization; Binding Obligations.  All corporate action on the
part of the Company, its officers, directors and shareholders necessary for the
authorization, sale and issuance of the Shares pursuant hereto and for the
performance of the Company's obligations hereunder has been taken or will be
taken prior to the Closing.  This Agreement, when executed and delivered, will
be valid and binding obligations of the Company enforceable in accordance with
their terms, except (i) as limited by applicable bankruptcy, insolvency,
reorganization, moratorium or other laws of general application affecting
enforcement of creditors' rights; (ii) general principles of equity that
restrict the availability of equitable remedies; and (iii) to the extent that
enforceability may be limited by applicable laws.

          3.4  Offering Valid.  Assuming the accuracy of the representations and
warranties of Purchaser contained in Section 4 hereof, the offer, sale and
issuance of the Shares will be exempt from the registration requirements of the
Securities Act of 1933, as amended (the "Securities Act"), and will have been
registered or qualified (or are exempt from registration and qualification)
under the registration, permit or qualification requirements of all applicable
state securities laws.  The Company will not engage in any directed selling
efforts (as defined in Regulation S under the Securities Act) with respect to
the Shares.  The Company has complied and will comply with the offering
restrictions requirement of Regulation S (Rule 901 through Rule 905 and
Preliminary Notes) of the Securities Act ("Regulation S").

SECTION 4.  REPRESENTATIONS, WARRANTIES AND COVENANTS OF PURCHASER.

                                       2
<PAGE>

          Purchaser hereby represents, warrants and covenants to the Company as
follows:

          4.1  Requisite Power and Authority.  Purchaser has all necessary power
and authority under all applicable provisions of law to execute and deliver this
Agreement and to carry out its provisions.  All actions on Purchaser's part
required for the lawful execution and delivery of this Agreement have been or
will be effectively taken prior to the Closing.  Upon their execution and
delivery, this Agreement will be valid and binding obligations of Purchaser,
enforceable in accordance with their terms, except (i) as limited by applicable
bankruptcy, insolvency, reorganization, moratorium or other laws of general
application affecting enforcement of creditors' rights, (ii) general principles
of equity that restrict the availability of equitable remedies, and (iii) to the
extent that enforceability may be limited by applicable laws.

          4.2  Investment Representations.  Purchaser understands that the
Shares have not been registered under the Securities Act.  Purchaser also
understands that the Shares are being offered and sold pursuant to an exemption
from registration contained in the Securities Act based in part upon Purchaser's
representations contained in the Agreement.

          4.3  Accredited Investor.  Purchaser represents that it is an
accredited investor within the meaning of Regulation D under the Securities Act.

          4.4  Purchaser Bears Economic Risk.  Purchaser has substantial
experience in evaluating and investing in private placement transactions of
securities in companies similar to the Company so that it is capable of
evaluating the merits and risks of its investment in the Company and has the
capacity to protect its own interests.  Purchaser must bear the economic risk of
this investment indefinitely unless the Shares are registered pursuant to the
Securities Act, or exemption from registration is available.

          4.5  Acquisition for Own Account.  Purchaser is not a U.S. person, as
defined in Section 902(k) of the Securities Act, and is acquiring the Shares for
Purchaser's own account for investment only, and not with a view towards their
distribution.

          4.6  Receipt of Company Information.  Purchaser has had an opportunity
to discuss the Company's business, management and financial affairs with
directors, officers and management of the Company and has had the opportunity to
review the Company's operations and facilities.  Purchaser has also had the
opportunity to ask questions of and receive answers from the Company and its
management regarding the terms and conditions of this investment.  The
foregoing, however, does not limit or modify the representations and warranties
of the Company in Section 3 of this Agreement or the right of Purchaser to rely
thereon.

          4.7  No Public Market.  Purchaser acknowledges and agrees that the
Shares must be held indefinitely unless they are subsequently registered under
the Securities Act or an exemption from such registration is available.
Purchaser understands that the Company has no present intention of registering
the Shares, or any shares of its Common Stock.  Purchaser also understands that
there is no assurance that any exemption from registration under the Securities
Act will be available and that, even if available, such exemption may not allow
Purchaser to transfer all or any portion of the Shares under the circumstances,
in the amounts or at the times Purchaser might propose.  Purchaser has been
advised or is aware of the provisions of Rule 144

                                       3
<PAGE>

promulgated under the Securities Act, which permits limited resale of shares
purchased in a private placement subject to the satisfaction of certain
conditions, including, among other things: the availability of certain current
public information about the Company, the resale occurring not less than one
year after a party has purchased and paid for the security to be sold, the sale
being through an unsolicited "broker's transaction" or in transactions directly
with a market maker (as said term is defined under the Securities Exchange Act
of 1934, as amended) and the number of shares being sold during any three-month
period not exceeding specified limitations.

          4.8  Transfer Restrictions.  Purchaser acknowledges and agrees that
the Shares are subject to restrictions on transfer as set forth in this Section
4.8 and in Appendix A hereto.  Purchaser understands that:  (a) the Shares shall
           ----------
not be transferable in the absence compliance with the provisions of Regulation
S, pursuant to registration under the Securities Act, or pursuant to an
exemption therefrom or in the absence of compliance with any term of this
Agreement; (b) the Company shall provide stop transfer instructions to its
transfer agent (the "Transfer Agent") with respect to the Shares in order to
enforce the restrictions contained in this Section 4.8 and in Appendix A hereto;
                                                              ----------
(c) hedging transactions involving the Shares may not be conducted unless in
compliance with the Securities Act; and (d) each certificate representing Shares
shall be in the name of Purchaser and shall bear substantially the following
legends (in addition to any legends required under applicable securities laws):

     "THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
     UNDER THE UNITED STATES OF AMERICA SECURITIES ACT OF 1933, AS AMENDED (THE
     "SECURITIES ACT").  THE SECURITIES REPRESENTED BY THIS CERTIFICATE SHALL
     NOT BE OFFERED OR SOLD IN THE UNITED STATES (AS DEFINED UNDER SECTIONS
     230.901 THROUGH 230.904 OF TITLE 17 OF THE UNITED STATES CODE OF FEDERAL
     REGULATIONS ("REGULATION S") OR OFFERED, SOLD, DELIVERED, PLEDGED OR
     OTHERWISE TRANSFERRED TO OR HELD BY OR FOR THE ACCOUNT OR BENEFIT OF (A) A
     CITIZEN OR RESIDENT OF THE UNITED STATES OF AMERICA OR ANY OF ITS
     TERRITORIES OR POSSESSIONS, (B) A CORPORATION, PARTNERSHIP OR OTHER ENTITY
     CREATED OR ORGANIZED UNDER THE LAWS OF THE UNITED STATES OF AMERICA OR (C)
     A U.S. PERSON (AS DEFINED UNDER REGULATION S), EXCEPT PURSUANT TO
     REGISTRATION UNDER THE SECURITIES ACT OR PURSUANT TO AN EXEMPTION FROM THE
     REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.  THIS CERTIFICATE MAY NOT
     BE OFFERED, SOLD, DELIVERED, PLEDGED OR OTHERWISE TRANSFERRED TO OR HELD BY
     ANY ENTITY, THE ASSETS OF WHICH ARE DEEMED TO INCLUDE THE ASSETS OF ANY
     EMPLOYEE BENEFIT PLAN THAT IS SUBJECT TO THE U.S. EMPLOYEE RETIREMENT
     INCOME SECURITY ACT OF 1974 ("ERISA").  EACH HOLDER OF THIS CERTIFICATE WHO
     IS A U.S. PERSON IS HEREBY NOTIFIED THAT, EXCEPT AS PROVIDED IN THE
     AGREEMENT, SUCH HOLDER SHALL NOT BE ENTITLED TO RECEIVE ANY PAYMENTS UNDER
     THIS CERTIFICATE.  BY ITS ACCEPTANCE OF THIS CERTIFICATE, EACH HOLDER OF
     THIS CERTIFICATES SHALL BE DEEMED TO HAVE REPRESENTED TO AMERIGON
     INCORPORATED

                                       4
<PAGE>

     THAT SUCH HOLDER EITHER IS NOT A U.S. PERSON AND THAT SUCH HOLDER IS NOT
     PURCHASING THIS CERTIFICATE FOR THE ACCOUNT OF ANY U.S. PERSON OR IS
     ACQUIRING THIS SECURITY IN A TRANSACTION THAT IS EXEMPT FROM THE
     REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

     ANY UNITED STATES PERSON WHO HOLDS THIS OBLIGATION WILL BE SUBJECT TO
     LIMITATIONS UNDER THE UNITED STATES INCOME TAX LAWS, INCLUDING THE
     LIMITATIONS PROVIDED IN SECTIONS 165(j) AND 1287(a) OF THE INTERNAL REVENUE
     CODE."

SECTION 5.  REGISTRATION RIGHTS.

          5.1  Demand Registration.

          (a)    Subject to the provisions set forth in this Section 5.1, if the
Company shall receive, at any time after twelve (12) months after the effective
date of the first registration statement for a public offering of securities of
the Company (other than a registration statement relating either to the sale of
securities to employees of the Company pursuant to a stock option, stock
purchase or similar plan or a SEC Rule 145 transaction), a written request from
Purchaser that the Company effect the registration under the Securities Act on
Form S-3 of all of the Purchaser's Shares and specifying the intended method of
disposition thereof (a "Demand Registration"), then the Company shall use its
reasonable best efforts to effect, as expeditiously as possible, the
registration under the Securities Act on Form S-3 of the Registrable Shares with
the Securities and Exchange Commission (the "SEC") which the Company has been so
requested to register by Purchaser then held by Purchaser, all to the extent
necessary to permit the disposition (in accordance with the intended methods
thereof as aforesaid) of the Registrable Shares so to be registered.

          Purchaser may, at any time prior to the effective date of the
registration statement relating to such registration, revoke a request for such
registration, without liability, by providing a written notice to the Company
revoking such request, in which case such request, so revoked, shall be
considered a Demand Registration unless such revocation arose out of the fault
of the Company or unless Purchaser reimburses the Company for all costs incurred
by the Company in connection with such registration, in which case such request
shall not be considered a Demand Registration.

          (b) The Company will not be required to effect more than one Demand
Registration, and Purchaser shall not be entitled to request a Demand
Registration until one year after the Closing.  The Company will not be
obligated to effect a Demand Registration (1) if the Registrable Securities
requested by Purchaser to be registered have an anticipated aggregate offering
price to the public (before deducting any underwriter discounts, concessions or
commissions) of less than $1,000,000 or (2) if Form S-3 is not available for
such offering.

          (c) Upon written notice to Purchaser, the Company may, as a matter of
right, postpone effecting a registration pursuant to this Section 5.1 on one
occasion during any period of six consecutive months for a reasonable time
specified in the notice but not exceeding

                                       5
<PAGE>

90 days (which period may not be extended or renewed except that it may be
extended for an additional 30 days if the request for registration is made
during the first quarter of any fiscal year).

          (d) For the purposes of this Agreement:  (A) "Registrable Shares"
means the Shares issued and acquired pursuant to this Agreement (and including
any shares issued in connection with any split or dividend in respect of any
such shares); provided, however, that any such Share will cease to be a
Registrable Share when (1) a Registration Statement covering a Registrable Share
has been declared effective by the SEC and such Share has been disposed of by
Purchaser pursuant to such effective Registration Statement, (2) the Registrable
Share is transferred to another person, (3) such share (after initial issuance)
is held by the Company or otherwise ceases to be outstanding, or (4) such share
may be traded without restriction pursuant to paragraph (k) of Rule 144, if
applicable; and (B) "Registration Statement" means any registration statement or
comparable document under the Securities Act through which a public sale or
disposition of the Registrable Shares may be registered, including the
prospectus, amendments and supplements to such registration statement, all
exhibits, and all material incorporated by reference or deemed to be
incorporated by reference in such registration statement.

      5.2  Piggy-back Registration Rights.

          (a) If the Company proposes to register any of its securities under
the Securities Act, in connection with the public offering of such securities
(other than a registration form relating to:  (i) a registration of a stock
option plan, stock purchase or compensation or incentive plan or of stock issued
or issuable pursuant to any such plan, or a dividend investment plan; (ii) a
registration of securities proposed to be issued in exchange for securities or
assets of or in connection with a merger or consolidation with, another entity;
or (iii) a registration of securities proposed to be issued in exchange for, or
as a right exercisable only by holders of, other securities of the Company), the
Company shall promptly (but in no event later than 30 days prior to such
registration) give Purchaser written notice of such registration together with a
list of the jurisdictions in which the Company intends to attempt to qualify
such securities under applicable state securities laws.  Upon the written
request of Purchaser given within 10 days after receipt of such written notice
from the Company in accordance with Section 6.6 of this Agreement, the Company
shall include in the Registration Statement to be filed by it under the
Securities Act in connection with such offering all of the Registrable Shares
that the Purchaser has requested to be registered.  The Purchaser may only
exercise the rights pursuant to this Section 5.2 once.

          (b) The right of Purchaser to "piggyback" in an underwritten public
offering of the Company's securities pursuant to Section 5.2(a) shall be
conditioned upon Purchaser's participation in such underwriting and the
inclusion of Purchaser's Registrable Shares in the underwriting to the extent
provided herein.  If Purchaser proposes to distribute its securities through
such underwriting, Purchaser shall (together with the Company and any other
stockholders of the Company distributing their securities through such
underwriting) enter into an underwriting agreement in customary form with the
underwriter or underwriters selected for underwriting by the Company and, if
requested, custody and power of attorney agreements in customary form.
Notwithstanding any other provision of this Section 5, if the underwriter

                                       6
<PAGE>

determines that marketing factors require a limitation of the number of shares
to be underwritten, the Company shall so advise Purchaser and all stockholders
of the Company participating in the underwriting and registration, and the
number of securities that may be included in the registration and underwriting
shall be allocated first to the Company, and then any remaining shares shall be
allocated among Purchaser and such stockholders of the Company pro rata based on
the number of shares for which registration was requested.

          (c) The following provisions will apply in the event the registration
relates to an offering other than an underwritten public offering:  Purchaser
shall promptly notify the Company of the proposed manner of sale of any Common
Stock to be sold pursuant to such Registration Statement other than in
unsolicited brokers' transactions including only usual and customary brokers'
commissions.  Purchaser shall not undertake any such transactions other than
unsolicited brokers' transactions including only usual and customary brokers'
commissions unless (i) Purchaser shall have furnished all information required
to be disclosed in any related prospectus or prospectus supplement, and (ii)
Purchaser shall have agreed in writing to bear all of the incremental costs
directly attributable to such manner of sale.

     5.3  Suspension Of Effectiveness. The Company's obligations under Section
this Section 5 shall not restrict its ability to suspend the effectiveness of,
or direct Purchaser not to offer or sell securities under, any Registration
Statement, at any time, for such reasonable period of time which the Company
believes is necessary to prevent the premature disclosure of any events or
information having a material effect on the Company. In addition, the Company
shall not be required to keep any Registration Statement effective, or may,
without suspending such effectiveness, instruct Purchaser not to sell such
securities, during any period during which the Company is instructed, directed,
ordered or otherwise requested by any governmental agency or self-regulatory
organization to stop or suspend such trading or sales.

     5.4  Holdback Agreement. In the event of any filing of a prospectus
supplement or the commencement of an underwritten public distribution of the
Company's Common Stock under a Registration Statement, whether or not
Registrable Shares are included, Purchaser agrees not to effect any public sale
or distribution of the Shares (except as part of such underwritten public
distribution), including a sale pursuant to Rule 144 or Rule 144A under the
Securities Act, during a period designated by the Company in a written notice
duly given to Purchaser, which period shall commence up to 14 days prior to the
effective date of any such filing of such prospectus supplement or the
commencement of such underwritten public distribution of such Common Stock under
a Registration Statement and shall continue for up to 134 consecutive days.

     5.5  Registration Procedures.  Except as otherwise expressly provided
herein, in connection with any registration of Registrable Shares pursuant to
this Agreement, the Company shall, as expeditiously as possible:

          (a) prepare and file with the SEC a Registration Statement with
respect to such Registrable Shares and use its reasonable best efforts to cause
such Registration Statement to become effective as soon as practicable
thereafter; and before filing a Registration Statement or prospectus or any
amendments or supplements thereto, furnish to Purchaser copies of such
Registration Statement and such other documents as proposed to be filed
(including

                                       7
<PAGE>

copies of any document to be incorporated by reference therein), and thereafter
furnish to Purchaser such number of copies as may be reasonably requested in
writing by Purchaser of such Registration Statement, each amendment and
supplement thereto (including copies of any document to be incorporated by
reference therein), including all exhibits thereto, the prospectus included in
such Registration Statement (including each preliminary prospectus), and,
promptly after the effectiveness of a Registration Statement, the definitive
final prospectus filed with the SEC;

          (b) notify Purchaser, at any time when a prospectus relating thereto
is required to be delivered under the Securities Act, of the occurrence of any
event as a result of which the prospectus included in such Registration
Statement (including any document to be incorporated by reference therein)
contains an untrue statement of a material fact or omits any fact necessary to
make the statements therein not misleading and, at the request of Purchaser, the
Company shall prepare a supplement or amendment to such prospectus so that, as
thereafter delivered to the purchasers of such Registrable Shares, such
prospectus will not contain an untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary to make the
statements therein not misleading and promptly make available to Purchaser any
such supplement or amendment;

          (c) notify Purchaser and the managing underwriters, if any, promptly,
and (if requested by any such Person) confirm such advice in writing, (i) when
the Registration Statement, the prospectus or any prospectus supplement or post-
effective amendment has been filed, and, with respect to the Registration
Statement or any post-effective amendment, when the same has become effective,
(ii) of the issuance by the SEC of any stop order suspending the effectiveness
of a Registration Statement or of any order preventing or suspending the use of
any preliminary prospectus or the initiation of any proceedings for that purpose
and the Company shall promptly use its reasonable best efforts to prevent the
issuance of any stop order or to obtain its withdrawal if such stop order should
be issued and (iii) of the receipt by the Company of any notification with
respect to the suspension of the qualification or exemption from qualification
of a Registration Statement or any of the Registrable Shares for offer or sale
in any jurisdiction, or the initiation or threatening of any proceeding for such
purpose.

          The Company may require Purchaser to furnish to the Company such
information regarding themselves and the distribution of such Registrable Shares
as the Company may from time to time reasonably request in writing and such
other information as may be legally required in connection with such
registration.  Purchaser agrees, by their acquisition of Registrable Shares and
their acceptance of the benefits provided to it hereunder, to furnish promptly
to the Company all information required to be disclosed in order to make any
previously furnished information not materially misleading.  If proposing to
distribute its Registrable Shares through such underwriting Purchaser shall
(together with the Company) enter into an underwriting agreement in customary
form with the underwriter or underwriters selected by the Company for such
underwriting and shall provide to such underwriter or underwriters any opinions
and certificates, and any indemnification with respect to Purchaser as
reasonably required by such underwriter or underwriters.

          Purchaser agrees that upon receipt of any notice from the Company of
the happening of any event of the kind described herein requiring the cessation
of the distribution of

                                       8
<PAGE>

a prospectus or the distribution of a supplemented or amended prospectus,
Purchaser will forthwith discontinue disposition of Registrable Shares pursuant
to the Registration Statement covering such Registrable Shares until Purchaser's
receipt of the copies of the supplemented or amended prospectus contemplated by
this Agreement, or until it is advised in writing by the Company that the use of
the prospectus may be resumed, and, if so directed by the Company, Purchaser
will deliver to the Company (at the Company's expense) all copies, other than
permanent file copies then in Purchaser's possession, of the prospectus covering
such Registrable Shares current at the time of receipt of such notice.

      5.6  Registration Expenses.  All expenses incident to the Company's
performance of or compliance with the registration of shares pursuant to this
Agreement, including, without limitation, all registration and filing fees, fees
and expenses of compliance with securities or blue sky laws (including
reasonable fees and disbursements of counsel of the Company and counsel for the
underwriters in connection with "blue sky" qualifications of the Registrable
Shares), fees and expenses associated with filings required to be made with the
National Association of Securities Dealers, Inc., and with listing on any
national securities exchange or exchanges in which listing may be sought,
printing expenses, messenger and delivery expenses, fees and expenses of counsel
for the Company and its independent certified public accountants, securities
acts liability insurance (if the Company elects to obtain such insurance), the
fees and expenses of any special experts retained by the Company in connection
with such registration, and fees and expenses of other persons retained by the
Company (all such expenses being herein called "Registration Expenses") will be
borne by the Company; provided that in no event shall Registration Expenses
payable by the Company include any (i) underwriting discounts, commissions, or
fees attributable to the sale of Registrable Shares, (ii) fees and expenses of
any counsel, accountants, or other persons retained or employed by Purchaser or
underwriters, or (iii) transfer taxes, if any.

SECTION 6.  MISCELLANEOUS.

      6.1  Entire Agreement.  This Agreement, the Exhibits and Schedules
hereto, the other documents delivered pursuant hereto, and the Manufacturing
Agreement constitute the full and entire understanding and agreement between the
parties with regard to the subjects hereof and thereof and no party will be
liable or bound to any other in any manner by any representations, warranties,
covenants and agreements except as specifically set forth herein and therein.

      6.2  Successors and Assigns.  Except as otherwise expressly provided
herein, the provisions hereof will inure to the benefit of, and be binding upon,
the successors, assigns, heirs, executors and administrators of the parties
hereto and will inure to the benefit of and be enforceable by each person who
will be a holder of the Shares from time to time.  Nothing in this Agreement,
express or implied, is intended to confer upon any party other than the parties
hereto or their respective successors and assigns any rights, remedies,
obligations, or liabilities under or by reason of this Agreement, except as
expressly provided in this Agreement.

      6.3  Governing Law.  This Agreement will be governed in all respects by
the laws of the State of California as such laws are applied to agreements
between California residents entered into and performed entirely in California.

                                       9
<PAGE>

      6.4  Counterparts.  This Agreement may be executed in any number of
counterparts, each of which will be an original, but all of which together will
constitute one instrument.

      6.5  Titles and Subtitles.  The title of the sections and subsections
of the Agreement are for convenience of reference only and are not to be
considered in construing or interpreting this Agreement.

      6.6  Notices.  All notices required or permitted hereunder will be in
writing and will be deemed effectively given:  (i) upon personal delivery to the
party to be noticed; (ii) five (5) days after having been sent by registered or
certified mail, return receipt requested, postage prepaid; (iii) one (1) day
after deposit with a nationally recognized overnight courier, specifying next
day delivery, with written verification of receipt; or (iv) when sent by
confirmed telex or facsimile if sent during normal business hours of the
recipient, if not, then on the next business day.  All communications will be
sent to the Company and Purchaser at their respective addresses as set forth on
the signature page hereof or at such other address as the Company or Purchaser
may designate by ten (10) days advance written notice to the other parties
hereto.  All communications shall be addressed as follows:

       if to the Company, to:

               Amerigon Incorporated
               5462 Irwindale Avenue
               Irwindale, CA  91706
               Attention:  Richard Weisbart
               Facsimile No.:  (626) 815-7441

               with a copy to:

               O'Melveny & Myers LLP
               400 South Hope Street
               Los Angeles, CA  90071-2899
               Attention:  John A. Laco, Esq.
               Facsimile No.:  (213) 430-6407

       if to Purchaser, to:

               FerrotecCorporation
               Sumitomo Bldg. #6,
               5-24-8 Higashi Ueno Taito-ku
               Tokyo 110, Japan
               Attention:
               Facsimile No.:

       6.7  Amendment and Waiver.  Any term of this Agreement may be amended
and the observance of any term of this Agreement may be waived (either generally
or in a particular instance and either retroactively or prospectively) only with
the written consent of the

                                      10
<PAGE>

Company and Purchaser. Any amendment or waiver effected in accordance with this
paragraph will be binding upon each holder of any securities purchased under
this Agreement at the time outstanding (including securities into which such
securities have been converted), each future holder of all such securities, and
the Company.

      6.8  Delays or Omissions.  It is agreed that no delay or omission to
exercise any right, power or remedy accruing to any party, upon any breach,
default or noncompliance by another party under this Agreement will impair any
such right, power or remedy, nor will it be construed to be a waiver of any such
breach, default or noncompliance, or any acquiescence therein, or of or in any
similar breach, default or noncompliance thereafter occurring.  It is further
agreed that any waiver, permit, consent or approval of any kind or character on
Purchaser's part of any breach, default or noncompliance under this Agreement or
any waiver on such party's part of any provisions or conditions of the Agreement
must be in writing and will be effective only to the extent specifically set
forth in such writing.  All remedies, either under this Agreement by law, or
otherwise afforded to any party, will be cumulative and not alternative.

      6.9  Severability.  In case any provision of the Agreement will be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions will not in any way be affected or impaired thereby.

      6.10  Expenses.  The Company and Purchaser will bear its own expenses
incurred on its behalf with respect to this Agreement and the transactions
contemplated thereby.

     6.11  Attorneys' Fees.  In the event that any dispute among the
parties to this Agreement should result in litigation, the prevailing party in
such dispute will be entitled to recover from the losing party all fees, costs
and expense of enforcing any right of such prevailing party under or with
respect to this Agreement, including without limitation, such reasonable fees
and expenses of attorneys and accountants, which will include, without
limitation, all fees, costs and expenses of appeals.

     6.12  Finder's and Broker's Fees.  Each party hereto represents and
warrants that no agent, broker, investment banker, person or firm acting on
behalf of or under the authority of such party hereto is or will be entitled to
any broker's or finder's fee or any other commission directly or indirectly in
connection with the transactions contemplated herein.  Each party hereto further
agrees to indemnify each other party for any claims, losses or expenses incurred
by such other party as a result of the representation in this Section 6.12 being
untrue.

     6.13  Pronouns.  All pronouns contained herein, and any variations thereof,
will be deemed to refer to the masculine, feminine or neutral, singular or
plural, as to the identity of the parties hereto may require.

           [remainder of this page has been intentionally left blank]

                                      11
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date set forth in the first paragraph hereof.

COMPANY:                                   PURCHASER:

AMERIGON INCORPORATED                      FERROTEC CORPORATION

/s/ Richard Weisbart                       /s/ Akira Yamamura
-----------------------------              -----------------------------------
Name:  Richard A. Weisbart                 Name:   Akira Yamamura
Title: President                           Title:  President
       and Chief Executive Officer                 and Chief Executive Officer

<PAGE>

                                   APPENDIX A
                                   ----------

                              SELLING RESTRICTIONS
                              --------------------

1.   United States
     -------------

     The Shares have not been and will not be registered under the Securities
     Act, and may not be offered or sold within the United States or to, or for
     the account or benefit of, U.S. persons except in accordance with
     Regulation S or pursuant to an exemption from the registration requirements
     of the Securities Act. Purchaser represents and agrees that it has offered
     and sold any Shares, and will offer and sell any Shares (i) as part of
     their distribution at any time and (ii) otherwise until one (1) year after
     the Closing Date (the "Restricted Period"), as determined and certified as
     provided below, only in accordance with Rule 903 of Regulation S.

     Purchaser shall determine and certify to the Transfer Agent that it has
     complied with the transfer restrictions as set forth in Section 4.8 of this
     Agreement and this Appendix A. Only upon receipt of such certification will
                        ----------
     the Transfer Agent be authorized to accept a transfer of the Shares upon
     the completion of the Restricted Period, or in accordance with Regulation
     S. Purchaser also agrees that, at or prior to confirmation of sale of
     Shares, it will have sent to each distributor, dealer or person receiving a
     selling concession, fee or other remuneration that purchases Shares from it
     during the Restricted Period a confirmation or notice to substantially the
     following effect:

          "The Securities covered hereby have not been registered under the U.S.
          Securities Act of 1933, as amended (the "Securities Act"), and may not
          be offered or sold within the United States or to, or for the account
          or benefit of, U.S. persons (i) as part of their distribution at any
          time or (ii) otherwise until one (1) year after the completion of the
          distribution of the Securities as determined and certified by the
          Company or its Transfer Agent, and except in accordance with
          Regulation S.  Terms used above have the meanings given to them by
          Regulation S."

     Purchaser represents and agrees that it, its affiliates or any persons
     acting on its or their behalf have not engaged and will not engage in any
     directed selling efforts with respect to any Shares, and it and they have
     complied and will comply with the offering restrictions requirement of
     Regulation S.

2.   Japan
     -----

     Purchaser understands that the Shares have not been and will not be
     registered under the Securities and Exchange Law of Japan (the "Securities
     and Exchange Law"). Accordingly, Purchaser represents and agrees that it
     will not offer or sell any Shares, directly or indirectly, in Japan or to,
     or for the benefit of, any resident of Japan ("Resident of Japan", which
     term as used herein means any person resident in Japan, including any
     corporation or other entity organized under the laws of Japan) except
     pursuant to an

<PAGE>

     exemption from the registration requirements of, and otherwise in
     compliance with, the Securities and Exchange Law and any other applicable
     laws, regulations and ministerial guidelines of Japan taken as a whole.

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