Document:

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                                                                     Exhibit 4.8

THIS WARRANT AND THE SHARES ISSUABLE HEREUNDER HAVE NOT BEEN REGISTERED UNDER
THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD, PLEDGED, OR
OTHERWISE TRANSFERRED WITHOUT AN EFFECTIVE REGISTRATION THEREOF UNDER SUCH ACT
OR PURSUANT TO RULE 144 OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO THE
CORPORATION AND ITS COUNSEL, THAT SUCH REGISTRATION IS NOT REQUIRED.

                            WARRANT TO PURCHASE STOCK

Corporation: E-SYNC NETWORKS, INC., a Delaware corporation
Number of Shares: 18,181
Class of Stock: Common
Initial Exercise Price: $3.3125 per share, subject to adjustment
Issue Date: September 22, 2000
Expiration Date: September 22, 2007

         THIS WARRANT CERTIFIES THAT, for the agreed upon value of $1.00 and for
other good and valuable consideration, SILICON VALLEY BANK ("Holder") is
entitled to purchase the number of fully paid and nonassessable shares of the
class of securities (the "Shares") of the corporation (the "Company") at the
initial exercise price per Share (the "Warrant Price") all as set forth above
and as adjusted pursuant to Article 2 of this Warrant, subject to the provisions
and upon the terms and conditions set forth in this Warrant.

ARTICLE 1. EXERCISE.

                  1.1 Method of Exercise. Holder may exercise this Warrant by
delivering a duly executed Notice of Exercise in substantially the form attached
as Appendix 1 to the principal office of the Company. Unless Holder is
exercising the conversion right set forth in Section 1.2, Holder shall also
deliver to the Company a check for the aggregate Warrant Price for the Shares
being purchased.

                  1.2 Conversion Right. In lieu of exercising this Warrant as
specified in Section 1.1, Holder may from time to time convert this Warrant, in
whole or in part, into a number of Shares determined by dividing (a) the
aggregate fair market value of the Shares or other securities otherwise issuable
upon exercise of this Warrant minus the aggregate Warrant Price of such Shares
by (b) the fair market value of one Share. The fair market value of the Shares
shall be determined pursuant to Section 1.3.

                  1.3 Fair Market Value. If the Shares are traded in a public
market, the fair market value of the Shares shall be the closing price of the
Shares (or the closing price of the Company's stock into which the Shares are
convertible) reported for the business day immediately before Holder delivers
its Notice of Exercise to the Company. If the Shares are not traded in a public
market, the Board of Directors of the Company shall determine fair market value
in its reasonable good faith judgment. The foregoing notwithstanding, if Holder
advises the Board of Directors in writing that Holder disagrees with such
determination, then the Company and Holder shall promptly agree upon a reputable
investment banking firm to undertake such valuation. If the valuation of such
investment banking firm is greater than that determined by the Board of
Directors, then all fees and expenses of such investment banking firm shall be
paid by the Company. In all other circumstances, such fees and expenses shall be
paid by Holder.

                  1.4 Delivery of Certificate and New Warrant. Promptly after
Holder exercises or converts this Warrant, the Company shall deliver to Holder
certificates for the Shares acquired and, if this Warrant has not been fully
exercised or converted and has not expired, a new Warrant representing the
Shares not so acquired.

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                  1.5 Replacement of Warrants. On receipt of evidence reasonably
satisfactory to the Company of the loss, theft, destruction or mutilation of
this Warrant and, in the case of loss, theft or destruction, on delivery of an
indemnity agreement reasonably satisfactory in form and amount to the Company
or, in the case of mutilation, on surrender and cancellation of this Warrant,
the Company shall execute and deliver, in lieu of this Warrant, a new warrant of
like tenor.

                  1.6 Assumption Upon Sale, Merger, or Consolidation of the
Company.

                           1.6.1. "Acquisition". For the purpose of this
Warrant, "Acquisition" means any sale, license, or other disposition of all or
substantially all of the assets of the Company, or any reorganization,
consolidation, or merger of the Company where the holders of the Company's
securities before the transaction beneficially own less than 50% of the
outstanding voting securities of the surviving entity after the transaction.

                           1.6.2. Assumption of Warrant. Upon the closing of any
Acquisition the successor entity shall assume the obligations of this Warrant,
and this Warrant shall be exercisable for the same securities, cash, and
property as would be payable for the Shares issuable upon exercise of the
unexercised portion of this Warrant as if such Shares were outstanding on the
record date for the Acquisition and subsequent closing. The Warrant Price shall
be adjusted accordingly.

ARTICLE 2. ADJUSTMENTS TO THE SHARES.

                  2.1 Stock Dividends, Splits, Etc. If the Company (i) declares
or pays a dividend on its common stock (or the Shares if the Shares are
securities other than common stock) payable in common stock, or other
securities, or (ii) subdivides the outstanding common stock into a greater
amount of common stock, or, if the Shares are securities other than common
stock, subdivides the Shares in a transaction that increases the amount of
common stock into which the Shares are convertible, then upon exercise of this
Warrant, for each Share acquired, Holder shall receive, without cost to Holder,
the total number and kind of securities to which Holder would have been entitled
had Holder owned the Shares of record as of the date the dividend or subdivision
occurred.

                  2.2 Reclassification, Exchange or Substitution. Upon any
reclassification, exchange, substitution, or other event that results in a
change of the number and/or class of the securities issuable upon exercise or
conversion of this Warrant, Holder shall be entitled to receive, upon exercise
or conversion of this Warrant, the number and kind of securities and property
that Holder would have received for the Shares if this Warrant had been
exercised immediately before such reclassification, exchange, substitution, or
other event. Such an event shall include any automatic conversion of the
outstanding or issuable securities of the Company of the same class or series as
the Shares to common stock pursuant to the terms of the Company's Articles of
Incorporation upon the closing of a registered public offering of the Company's
common stock. The Company or its successor shall promptly issue to Holder a new
Warrant for such new securities or other property. The new Warrant shall provide
for adjustments which shall be as nearly equivalent as may be practicable to the
adjustments provided for in this Article 2 including, without limitation,
adjustments to the Warrant Price and to the number of securities or property
issuable upon exercise of the new Warrant. The provisions of this Section 2.2
shall similarly apply to successive reclassifications, exchanges, substitutions,
or other events.

                  2.3 Adjustments for Combinations, Etc. If the outstanding
shares are combined or consolidated, by reclassification or otherwise, into a
lesser number of shares, the Warrant Price shall be proportionately increased
and number of shares for which this Warrant is exercisable appropriately
decreased.

                  2.4 Adjustments for Diluting Issuances. The Warrant Price and
the number of Shares issuable upon exercise of this Warrant or, if the Shares
are Preferred Stock, the number of shares of common stock issuable upon
conversion of the Shares, shall be subject to adjustment, from time to time in
the manner set forth on Exhibit A in the event of Diluting Issuances (as defined
on Exhibit A).

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                  2.5 No Impairment. The Company shall not, by amendment of its
Articles of Incorporation or through a reorganization, transfer of assets,
consolidation, merger, dissolution, issue, or sale of securities or any other
voluntary action, avoid or seek to avoid the observance or performance of any of
the terms to be observed or performed under this Warrant by the Company, but
shall at all times in good faith assist in carrying out of all the provisions of
this Article 2 and in taking all such action as may be necessary or appropriate
to protect Holder's rights under this Article against impairment. If the Company
takes any action affecting the Shares or its common stock other than as
described above that adversely affects Holder's rights under this Warrant, the
Warrant Price shall be adjusted downward and the number of Shares issuable upon
exercise of this Warrant shall be adjusted upward in such a manner that the
aggregate Warrant Price of this Warrant is unchanged.

                  2.6 Fractional Shares. No fractional shares shall be issuable
upon exercise or conversion of the Warrant and the number of Shares to be issued
shall be rounded down to the nearest whole Share. If a fractional share interest
arises upon any exercise or conversion of the Warrant, the Company shall
eliminate such fractional share interest by paying Holder an amount computed by
multiplying the fractional interest by the fair market value of a full Share.

                  2.7 Certificate as to Adjustments. Upon each adjustment of the
Warrant Price, the Company at its expense shall promptly compute such
adjustment, and furnish Holder with a certificate of its Chief Financial Officer
setting forth such adjustment and the facts upon which such adjustment is based.
The Company shall, upon written request, furnish Holder a certificate setting
forth the Warrant Price in effect upon the date thereof and the series of
adjustments leading to such Warrant Price.

ARTICLE 3. REPRESENTATIONS AND COVENANTS OF THE COMPANY.

                  3.1 Representations and Warranties. The Company hereby
represents and warrants to the Holder as follows:

                           (a) The initial Warrant Price referenced on the first
page of this Warrant is not greater than the fair market value of the Shares
(based upon the closing price of the shares on the trading day immediately
preceding the date hereof) as of the date of this Warrant.

                           (b) All Shares which may be issued upon the exercise
of the purchase right represented by this Warrant, and all securities, if any,
issuable upon conversion of the Shares, shall, upon issuance, be duly
authorized, validly issued, fully paid and nonassessable, and free of any liens
and encumbrances except for restrictions on transfer provided for herein or
under applicable federal and state securities laws.

                           (c) The Capitalization table attached hereto is true
and correct.

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                  3.2 Notice of Certain Events. If the Company proposes at any
time (a) to declare any dividend or distribution upon its common stock, whether
in cash, property, stock, or other securities and whether or not a regular cash
dividend; (b) to offer for subscription pro rata to the holders of any class or
series of its stock any additional shares of stock of any class or series or
other rights; (c) to effect any reclassification or recapitalization of common
stock; (d) to merge or consolidate with or into any other corporation, or sell,
lease, license, or convey all or substantially all of its assets, or to
liquidate, dissolve or wind up; or (e) offer holders of registration rights the
opportunity to participate in an underwritten public offering of the company's
securities for cash, then, in connection with each such event, the Company shall
give Holder (1) at least 20 days prior written notice of the date on which a
record will be taken for such dividend, distribution, or subscription rights
(and specifying the date on which the holders of common stock will be entitled
thereto) or for determining rights to vote, if any, in respect of the matters
referred to in (c) and (d) above; (2) in the case of the matters referred to in
(c) and (d) above at least 20 days prior written notice of the date when the
same will take place (and specifying the date on which the holders of common
stock will be entitled to exchange their common stock for securities or other
property deliverable upon the occurrence of such event); and (3) in the case of
the matter referred to in (e) above, the same notice as is given to the holders
of such registration rights.

                  3.3 Information Rights. So long as the Holder holds this
Warrant and/or any of the Shares, the Company shall deliver to the Holder (a)
promptly after mailing, copies of all notices or other written communications to
the shareholders of the Company, (b) within 90 days after the end of each fiscal
year of the Company, the annual audited financial statements of the Company
certified by independent public accountants of recognized standing and (c) such
other financial statements required under and in accordance with any loan
documents between Holder and the Company (or if there are no such requirements
or if the subject loan(s) no longer are outstanding), then within 45 days after
the end of each of the first three quarters of each fiscal year, the Company's
quarterly, unaudited financial statements.

                  3.4 Registration Under Securities Act of 1933, as amended. The
Company agrees that the Shares shall be subject to the registration rights set
forth on Exhibit B, if attached.

ARTICLE 4. MISCELLANEOUS.

                  4.1 Term; Automatic Conversion upon Expiration. This Warrant
is exercisable, in whole or in part, at any time and from time to time on or
before the Expiration Date set forth above. In the event that, upon the
Expiration Date, the fair market value of one Share (or other security issuable
upon the exercise hereof) as determined in accordance with Section 1.4 above is
greater than the Exercise Price in effect on such date, then this Warrant shall
automatically be deemed on and as of such date to be converted pursuant to
Section 1.2 above as to all Shares (or such other securities) for which it shall
not previously have been exercised or converted, and the Company shall promptly
deliver a certificate representing the Shares (or such other securities) issued
upon such conversion to the Holder.

                  4.2 Legends. This Warrant and the Shares (and the securities
issuable, directly or indirectly, upon conversion of the Shares, if any) shall
be imprinted with a legend in substantially the following form:

         THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT
         OF 1933, AS AMENDED, AND MAY NOT BE SOLD, PLEDGED OR OTHERWISE
         TRANSFERRED WITHOUT AN EFFECTIVE REGISTRATION THEREOF UNDER
         SUCH ACT OR PURSUANT TO RULE 144 OR AN OPINION OF COUNSEL
         REASONABLY SATISFACTORY TO THE CORPORATION AND ITS COUNSEL
         THAT SUCH REGISTRATION IS NOT REQUIRED.

                  4.3 Compliance with Securities Laws on Transfer. This Warrant
and the Shares issuable upon exercise of this Warrant (and the securities
issuable, directly or indirectly, upon conversion of the Shares, if any) may not
be transferred or assigned in whole or in part without compliance with
applicable federal and state securities laws by the transferor and the
transferee (including, without limitation, the delivery of investment
representation letters and legal opinions reasonably satisfactory to the
Company, as reasonably requested by the Company). The Company shall

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not require Holder to provide an opinion of counsel if the transfer is to an
affiliate of Holder or if there is no material question as to the availability
of current information as referenced in Rule 144(c), Holder represents that it
has complied with Rule 144(d) and (e) in reasonable detail, the selling broker
represents that it has complied with Rule 144(f), and the Company is provided
with a copy of Holder's notice of proposed sale.

                  4.4 Transfer Procedure. Subject to the provisions of Section
4.3, Holder may transfer all or part of this Warrant or the Shares issuable upon
exercise of this Warrant (or the securities issuable, directly or indirectly,
upon conversion of the Shares, if any) at any time to Silicon Valley Bancshares
or The Silicon Valley Bank Foundation, or, to any other transferee by giving
the Company notice of the portion of the Warrant being transferred setting forth
the name, address and taxpayer identification number of the transferee and
surrendering this Warrant to the Company for reissuance to the transferee(s)
(and Holder if applicable). Unless the Company is filing financial information
with the SEC pursuant to the Securities Exchange Act of 1934, the Company shall
have the right to refuse to transfer any portion of this Warrant to any person
who directly competes with the Company.

                  4.5 Notices. All notices and other communications from the
Company to the Holder, or vice versa, shall be deemed delivered and effective
when given personally or mailed by first-class registered or certified mail, at
such address as may have been furnished to the Company or the Holder, as the
case may be, in writing by the Company or such holder from time to time. All
notices to be provided under this Warrant shall be sent to the following
address:

                           Silicon Valley Bank
                           Attn: Treasury Department HG100
                           3003 Tasman Drive
                           Santa Clara, CA  95054

                  4.6 Waiver. This Warrant and any term hereof may be changed,
waived, discharged or terminated only by an instrument in writing signed by the
party against which enforcement of such change, waiver, discharge or termination
is sought.

                  4.7 Attorneys Fees. In the event of any dispute between the
parties concerning the terms and provisions of this Warrant, the party
prevailing in such dispute shall be entitled to collect from the other party all
costs incurred in such dispute, including reasonable attorneys' fees.

                  4.8 Governing Law. This Warrant shall be governed by and
construed in accordance with the laws of the State of Delaware, without giving
effect to its principles regarding conflicts of law.

                                     "COMPANY"

                                     E-SYNC NETWORKS, INC.

                                     By:    _________________________
                                     Name:  _________________________
                                            (Print)
                                     Title: Chairman of the Board, President or
                                            Vice President

                                     By:    _________________________
                                     Name:  _________________________
                                            (Print)
                                     Title: Chief Financial Officer, Secretary,
                                            Assistant Treasurer or Assistant
                                            Secretary

                                       5<PAGE>   1

Exhibit 10.1

                                                 November 6, 2000

Monsieur Philippe Choppin de Janvry
ERAMET
Tour Maine-Montparnasse 33
Avenue Du Maine F-75755
Paris Cedex 15, France

Dear Monsieur Choppin de Janvry:

                        AGREEMENT FOR EXECUTIVE SERVICES

       You are aware that Special Metals Corporation and its wholly-owned
subsidiaries wish to have you, Monsieur Philippe Choppin de Janvry (hereinafter
referred to as "EXECUTIVE") provide executive managerial services. With regard
thereto, Special Metals Corporation and its wholly-owned subsidiaries
(hereinafter referred to as "SPECIAL") offer this letter of Agreement.

1.     The scope of work (hereinafter referred to as "EXECUTIVE SERVICES") shall
       generally consist of, but not be limited to, providing assistance,
       advice, recommendations and direction to SPECIAL's personnel and other
       individuals specified by SPECIAL in all aspects of management.

2.     The EXECUTIVE SERVICES authorized hereby commenced on October 1, 2000 and
       shall continue thereafter through December 31, 2002.

3.     EXECUTIVE shall be an independent contractor and shall not be an employee
       of SPECIAL.

4.     Charges for EXECUTIVE SERVICES performed hereunder shall be based upon a
       rate of Five Thousand Three Hundred Fifty Dollars ($5,350.00) per month.
       SPECIAL is to pay, in addition to the foregoing, reasonable travel
       expenses incurred in the performance of EXECUTIVE SERVICES and
       subsistence during said travel.

5.     EXECUTIVE shall not receive One Thousand Dollars ($1,000.00) for each
       regularly scheduled meeting of the Board of Directors. EXECUTIVE shall
       not receive an annual fee of Fourteen Thousand Dollars ($14,000.00) for
       serving on the Board of Directors.

<PAGE>   2

6.     Payment for EXECUTIVE SERVICES performed hereunder and for associated
       travel expenses and subsistence for every month during the period of this
       Agreement shall be made within thirty (30) days following receipt, and
       acceptance, of an invoice for the said month supported by appropriate
       expense documentation.

7.     EXECUTIVE shall be eligible to receive a bonus for calendar years 2001
       and 2002, in accordance with the following equations:

<TABLE>
<S>                                     <C>
         2001
         ----

         Months in which
         EXECUTIVE SERVICES
         were provided
         in 2001                              2001
         -------------
             12                          x    EBIT                -30      x       $10,000.00
                                              (in millions)

         2002
         ----

         Months in which
         EXECUTIVE SERVICES
         were provided
         in 2002                              2002
         -------------
             12                          x    EBIT                -45      x       $10,000.00
                                              (in millions)
</TABLE>

       Any bonus earned shall be paid within thirty (30) days of the
       availability of audited financial figures for the particular year.

8.     EXECUTIVE is aware that he has in the past and may in the future be
       exposed to SPECIAL's confidential information (hereinafter referred to as
       "INFORMATION") concerning inventions, technology, development plans,
       experimental work and commercial operations. EXECUTIVE shall not
       disclose, during or after the period of this Agreement, to anyone other
       than SPECIAL's employees with whom EXECUTIVE may be associated in
       EXECUTIVE's work for SPECIAL, or other parties whom SPECIAL may
       designate, any INFORMATION which EXECUTIVE has or may acquire from
       SPECIAL, without first obtaining SPECIAL's written consent to make such
       disclosure. EXECUTIVE shall not use, other than in performing EXECUTIVE
       SERVICES, any INFORMATION which EXECUTIVE has or may acquire from SPECIAL
       without first obtaining SPECIAL's written consent to use such.

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<PAGE>   3

9.     EXECUTIVE shall not have any obligation of confidence to SPECIAL in
       respect of:

       a)     INFORMATION which is now in the public domain, or which, in the
              future, enters the public domain through no fault of the EXECUTIVE
              (in which event EXECUTIVE's obligation of strict confidence in
              respect thereto shall terminate on the date of entry of the
              INFORMATION into the public domain). INFORMATION in a form other
              than a printed publication or other tangible form shall not be
              deemed to be in the public domain.

       b)     INFORMATION which is disclosed to EXECUTIVE at any time by a third
              party having the right to make such disclosure to EXECUTIVE, and
              without any obligation of confidence on the part of EXECUTIVE to
              said third party in respect of said disclosure.

       c)     INFORMATION which is released from its confidential status by the
              prior written consent of SPECIAL.

10.    Either party may terminate this Agreement any time by thirty (30) days
       advance written notice to the other. The termination of the Agreement
       shall have no effect on the obligations assumed by EXECUTIVE under
       paragraphs 8 and 9. The bonus set forth in paragraph 7 shall be computed
       on a pro rata basis in the event of early termination.

11.    This Agreement will be governed and construed in accordance with the laws
       of the State of New York.

       If this Agreement is acceptable to you, please execute both copies of
this letter in the space provided below, have your signature attested and return
one fully executed Agreement to us.

                  Very truly yours,

                  SPECIAL METALS CORPORATION

                  /s/ Robert F. Dropkin

                  Robert F. Dropkin
                  Secretary on behalf of the Board of Directors

       Accepted and agreed to this 8th day of November, 2000.

Attested to:                       PHILIPPE CHOPPIN DE JANVRY

                                   By: /s/ Philippe Choppin de Janvry
----------------------------           ------------------------------

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