JOINT FILER INFORMATION
Published on April 27, 2006
Exhibit 99.1
Joint Filer Information
Astec America Inc., 5810 Van Allen Way, Carlsbad, California 92008, has designated Emerson Electric Co. as the Designated Filer for the purposes of the attached Form 4.
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Issuer & Ticker Symbol: |
MKS Instruments, Inc. (MKSI) |
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Date of Events Requiring Statement: |
04/25/06 |
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04/26/06 |
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Signature: |
/s/ Harley M. Smith | |
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By: |
Harley M. Smith, Assistant Secretary |
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of Emerson Electric Co. |
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Signature: |
/s/ Harley M. Smith | |
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By: |
Harley M. Smith, Secretary |
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of Astec America Inc. |