-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, RPuE9/rXnCIweli9cZySVN4lqgoQpHHIrRrufrW6XokkLuqqciWLcCTRxCuuc0uy buLELfnCFc6eKZWkVrv99Q== 0000950138-05-001037.txt : 20051024 0000950138-05-001037.hdr.sgml : 20051024 20051024174732 ACCESSION NUMBER: 0000950138-05-001037 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20050919 FILED AS OF DATE: 20051024 DATE AS OF CHANGE: 20051024 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MKS INSTRUMENTS INC CENTRAL INDEX KEY: 0001049502 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823] IRS NUMBER: 042277512 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 90 INDUSTRIAL WAY CITY: WILMINGTON STATE: MA ZIP: 01887 BUSINESS PHONE: 978-284-4000 MAIL ADDRESS: STREET 1: 90 INDUSTRIAL WAY CITY: WILMINGTON STATE: MA ZIP: 01887 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: EMERSON ELECTRIC CO CENTRAL INDEX KEY: 0000032604 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRONIC & OTHER ELECTRICAL EQUIPMENT (NO COMPUTER EQUIP) [3600] STATE OF INCORPORATION: MO FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-23621 FILM NUMBER: 051152878 BUSINESS ADDRESS: STREET 1: 8000 W FLORISSANT AVE STREET 2: P O BOX 4100 CITY: ST LOUIS STATE: MO ZIP: 63136 BUSINESS PHONE: 3145532000 MAIL ADDRESS: STREET 1: 8000 W. FLORISSANT STREET 2: P.O. BOX 4100 CITY: ST LOUIS STATE: MO ZIP: 63136 FORMER NAME: FORMER CONFORMED NAME: EMERSON ELECTRIC MANUFACTUING CO DATE OF NAME CHANGE: 19730710 4 1 form4_092105ex.xml X0202 4 2005-09-19 0 0001049502 MKS INSTRUMENTS INC MKSI 0000032604 EMERSON ELECTRIC CO 8000 W. FLORISSANT AVE. ST. LOUIS MO 63136 0 0 1 0 Common Stock 2005-09-19 5 G 0 300000 D 8663389 I Through a subsidiary. Common Stock 1065182 D Bona fide gift to the Emerson Charitable Trust. Price is not applicable to acquisitions or dispositions resulting from bona fide gifts. The reported securities are owned directly by Astec America, Inc. The Reporting Person is the ultimate parent company of Astec America, Inc. See Exhibit 99 - Joint Filer Information /s/ Harley M. Smith, Assistant Secretary of Emerson Electric Co. 2005-10-24 /s/ Harley M. Smith, Secretary of Astec America, Inc. 2005-10-24 EX-99 2 exh99.htm JOINT FILER INFORMATION

Exhibit 99

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.

Issuer & Ticker Symbol:	MKS Instruments, Inc. (MKSI)
Date of Event Requiring Statement:		9/19/05

Signature:	/s/ Harley M. Smith
	By: Harley M. Smith, Assistant Secretary
		of Emerson Electric Co.
Signature:	/s/ Harley M. Smith
	By: Harley M. Smith, Secretary
		of Astec America, Inc.

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