Exhibit 10.1
 CONFIDENTIAL PORTIONS OMITTED AND FILED SEPARATELY WITH THE SECURITIES
AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT. BRACKETED ASTERISK ([*]) DENOTES OMISSIONS.
 BRIDGE AMENDMENT TO THE
APPLIED MATERIALS  ADVANCED ENERGY GSA
 Amendment Date GSA Supplier
 1.
    
    Continuation and Extension of GSA.
 a.
    
    Capitalized terms used in this Amendment shall (unless separately defined in this
Amendment) have the same meaning as in the GSA. Except to the limited extent expressly
modified by this Amendment, the GSA shall remain unmodified and in full force and effect.
 b.
    
    The parties agree that the Addendum to the GSA dated as of July 13, 2005, as later
amended as of January 23, 2007 (sometimes called the TFG Addendum) was terminated as of
August 29, 2008, and neither party has any further obligations thereunder.
 c.
    
    The parties agree that the Applied part numbers, prices, and IP classifications listed
on the attached Attachment 1 are all included on Attachment 1 to the GSA as of the
Amendment Date. (This is a non-exclusive listing of the Items that are on Attachment 1 as
of the Amendment Date, and does not remove any Item from Attachment 1 or waive any
commitment either Party may have otherwise made in writing to include or add an Item to
Attachment 1 at a future date.)
 2.
    
    Continuation of Contracts and Amendments. The Parties expressly agree that all
amendments and addenda to the GSA and all separate contracts continue in effect without
modification by this Amendment. The amendments and contracts that remain in effect include,
by way of example and not limitation, the following: Amendment to the GSA regarding the [*],
Addendum to the GSA for the [*]Addendum, Shipping Amendment to the GSA, [*].
 3.
    
    Replacement, Insertion, and Deletion of Certain GSA Sections. The following
provisions of the GSA are hereby replaced, deleted or inserted as set forth below.
 a.
    
    Section1(b)is replaced with the following:
 Applied
 b.
    
    Section 1(l) is replaced with the following:
 Specifications




---



##### 



c.
    
    Section1(j)is replaced with the following:
  Sub-tier Supplier 
 d.
    
    Section2(b)is replaced with this following:
 4.
    
    Term. The GSA shall, unless terminated as set forth in Section 21 (Termination),
continue in effect for at least thirty-six (36) months after January 28, 2011. Subject to the
minimum thirty-six (36) month term, this Agreement shall continue until either party provides nine
(9) months prior written notice to the other party of such partys desire to allow this Agreement
to expire. The effective period of this Agreement is referenced as the Term.
 a.
    
    Section3(e)is replaced with the following:
 Purchases by Authorized Third Party [*] [*] [*]
 b.
    
    Section4(c)is replaced with the following:
 Transportation Costs
 c.
    
    Section4(d)is replaced with the following:
 Price Adjustments [*]
 d.
    
    In Section5(c), [*] in the last sentence is replaced with [*] In addition, the
following language is inserted at the end of Section5(c):
 [*] [*] [*] [*] [*] [*]
  Page 2 of 11




---



##### 



e.
    
    The following provision is added as a new subsection (p) to Section 11 of the GSA:
 Audit [*]
 f.
    
    The second and third sentences in Section12(e), Remedies, are deleted and replaced
with the following:
 [*] [*] [*] [*] [*] [*] [*] [*] [*] [*]
 g.
    
    The last sentence in Section12(e), Remedies, is deleted and replaced with the
following:
 DMR
  Page 3 of 11




---



##### 



h.
    
    Section15(b)is replaced with the following:
 Design and Process Change Communication. [*]
 i.
    
    Section15(c)is replaced with the following:
 Other Changes and Equitable Adjustments [*] [*] [*] [*] [*]
 j.
    
    Section15(e),Ozone Depleting Chemical,is replaced with the following:
 Compliance with Minimum Environmental, Health & Safety Requirements
 k.
    
    Section 16,Management of Inventory, is replaced with the following:
 Designation of Inventory [*] Items Inventory [*] Items [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*]
  Page 4 of 11




---



##### 



Forecasts Applied
Forecasts [*] [*] [*] [*]
 Inventory Levels and Tracking Requirements [*] [*] [*] Inventory [*] [*] [*] [*]
 Claim for [*] Items [*] [*] [*] * * Items [*] [*] [*] [*] [*] [*] [*]
 Claim for [*] Items [*] [*] [*] Item [*] [*] [*] [*] [*] [*] [*] [*] [*] [*]
 Scope of Claim [*] [*] [*] [*] [*] Commercial Off-the-Shelf
Items [*] [*] [*]
  Page 5 of 11




---



##### 



Claim Process [*] [*] [*] [*] [*] [*]
 Disposal of [*] and [*] Items. [*] [*] [*] [*] [*] [*] [*]
 Materials Liability Review Meetings. Inventory Review Meeting) [*] [*] [*] [*], [*]
 l.
    
    Section 17,Management of Sub-tier Suppliers, is replaced with the following:
 Sub-tier Suppliers [*] [*]
 Sub-tier Suppliers Obligations
   Page 6 of 11




---



##### 



Recipients
  Mandated Sub-tier Suppliers Special Process
 m.
    
    Section 21,Termination, is replaced with the following:
 Termination for Default
 Notice By Applied
 Notice By Supplier
 Notices of Default and Cure Period Defaulting Condition [*]
  Page 7 of 11




---



##### 



After Termination for Default
  [*]
 (a)
    
    if the termination for default is of an
Authorized Demand Signal, such additional costs shall be [*](which
cost may include premium costs for expedited delivery and
administrative costs), provided that [*], and
 (b)
    
    if the termination for default is of this
Agreement, such additional costs shall be for (i) the [*]at the time
of such termination, plus (ii) [*](which cost may include premium
costs for expedited delivery and administrative costs) for commercially
reasonable substitutes for those Items, provided that the cost
differential for each Item [*], and provided that the cost differential
will [*]where such purchases are made by Applied during the
Post-Termination Period as defined below; and
  Post-Termination Period [*] [*] [*]
 Termination of an Authorized Demand Signal for Convenience
 [*] [*] [*] [*]
 [*] [*] [*]
 [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*]
  Page 8 of 11




---



##### 



Post Termination Consequences.
 n.
    
    Section 22,Disclaimer and Limitation of Liability,is replaced with the
following:
 [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*] [*]
 [*] [*] * [*] [*] [*] [*] [*] [*] [*] [*]
  Page 9 of 11




---



##### 



o.
    
    Section 24,Import and Export Requirements, is replaced with the following:
 General Import and/or Export Laws Trade Compliance Information
 Country of Manufacture
 Duty Drawback
 p.
    
    Section26(d)is replaced with the following:
 Survival of Obligations
 q.
    
    Section26(f)is replaced with the following:
 General Compliance with Laws and EEO Regulations
  Page 10 of 11




---



##### 



r.
    
    Section26(k)is replaced with the following:
 General Representations
 s.
    
    Section26(i),Applicable Law, Jurisdiction, Venue,is replaced with the
following:
 Governing Law, Exclusive Forum .
 t.
    
    The following provisions are added as new subsections to Section 26 of the GSA:
 Electronics Industry Code of Conduct
 Notifications to Applied.
 IN WITNESS WHEREOF
 APPLIED MATERIALS, INC.
    
    
    
    ADVANCED ENERGY INDUSTRIES, INC.By:
    
    /s/ George Alasajan

Name: George Alasajan
    
    
    
    By:
    
    /s/ Hans Betz

Name: Hans BetzTitle: Not provided
    
    
    
    
    
    Title: CEO
 Note:
    
    This Amendment was not signed by Advanced Energy Industries until January 28, 2011  Page 11 of 11




---



##### 



LeadTime(businessdaysincludingtransit
    
    Leadtime
    
    Timeestimate
    
    (business
    
    
    
    Refurbusing
    
    days
    
    
    
    CycleAMAT
    
    excluding
    
    
    
    Timefreight
    
    in-transit
    
    Section 12
    
    (Typical
    
    
    
    Item
    
    Royaltyrouting
    
    time;
    
    Warranty
    
    business
    
    
    
    Category
    
    (% ofItem
    
    guide;
    
    item
    
    (Months
    
    days
    
    Contract
    
    Unrestricted
    
    itemAMAT
    
    
    
    AE
    
    AE
    
    Contract
    
    item on
    
    NOT on
    
    from AE
    
    required
    
    Type
    
    Royalty
    
    Contract
    
    
    
    
    
    AEAMAT
    
    Rev
    
    AE Part
    
    Rev
    
    Platform /
    
    Price per
    
    CSP
    
    CSP
    
    invoice
    
    by refurb
    
    1 = Direct
    
    Restricted
    
    Price per
    
    
    
    AMAT
    
    ProductPIN
    
    Level
    
    Number
    
    Level
    
    Description
    
    Unit
    
    forecast)
    
    forecast)
    
    date)
    
    process)
    
    5  VMI
    
    Exclusive
    
    Unit)
    
    Notes
    
    BU
    
    Family[*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]
    
    [*]