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                                                                    Exhibit 4(b)

                          2000 REORGANIZATION AMENDMENT
                          TO THE DEFERRED COMPENSATION
                         PLAN FOR NONEMPLOYEE DIRECTORS

     The title of the Deferred Compensation Plan for Nonemployee Directors (the
"Plan") shall be amended to read, in its entirety, as follows:

                         BRUSH ENGINEERED MATERIALS INC.

              DEFERRED COMPENSATION PLAN FOR NONEMPLOYEE DIRECTORS
                         (AS AMENDED AS OF MAY 16, 2000)

     The reference in Article I of the Plan to "Brush Wellman Inc." shall be
amended to read "Brush Engineered Materials Inc."

          Section 2.3 of the Plan shall be amended to read, in its entirety, as
          follows:

               2.3. "Common Shares" shall mean the Common Shares, without par
          value, of the Company.

               Section 2.4 of the Plan shall be amended to read, in its
          entirety, as follows:

                2.4. "Company" shall mean Brush Engineered Materials Inc.

                Section 2.9 of the Plan shall be amended to read, in its
          entirety, as follows:

                2.9. "Plan" shall mean the Brush Engineered Materials Inc.
          Deferred Compensation Plan for Nonemployee Directors, as amended from
          time to time.

                Section 5.5(a) of the Plan shall be amended to read, in its
          entirety, as follows:

                (a) The Board of Directors of the Company at any time shall
          fail to include a majority of directors who are either "Original
          Directors" or "Approved Directors". An Original Director is a director
          who was serving on the Board of Directors of Brush Wellman Inc. on
          January 1, 1992. An Approved Director is a director who, after such
          date, is elected to the Board of Directors of Brush Wellman Inc. or
          the Board of Directors of the Company, or is nominated for election by
          the shareholders, by a vote of at least two-thirds of the Original
          Directors and the previously elected Approved Directors, if any;<PAGE>   1
                                                                    Exhibit 4(a)

                                AMENDMENT NO. 10
                                       TO
               THE BRUSH WELLMAN INC. SAVINGS AND INVESTMENT PLAN
                 (AS AMENDED AND RESTATED AS OF JANUARY 1, 1995)
                 -----------------------------------------------

         Brush Wellman Inc., an Ohio corporation, hereby adopts this Amendment
No. 10 to the Brush Wellman Inc. Savings and Investment Plan (the "Plan").

                                       I.

         Paragraph (6) of Section 1.1 of the Plan is amended to provide as
follows:

          (6) COMPANY: Brush Wellman Inc., an Ohio corporation, in respect of
     periods prior to the Effective Time and Brush Engineered Materials Inc., an
     Ohio corporation, in respect of periods from and after the Effective Time.

                                       II.

         A new Paragraph (11A) is added to Section 1.1 of the Plan to provide as
follows:

          (11A) EFFECTIVE TIME: The "Effective Time" as defined in that certain
     Agreement of Merger executed or to be executed by and among Brush Merger
     Co., Brush Wellman Inc. and Brush Engineered Materials Inc.

                                      III.

         The first sentence of Paragraph (10) of Section 1.1 of the Plan is
amended to provide as follows:

          All non-deferred compensation (before withholdings and deductions for
     taxes or other purposes) paid in cash or by check by his Employer to an
     Employee except for (a) payment of, or reimbursement for, expenses or
     losses incurred or to be incurred by an Employee, (b) any payment in
     connection with the Brush Wellman Inc. 1995 Stock Incentive Plan, as
     amended, or the Brush Engineered Materials Inc. 1995 Stock Incentive Plan,
     as amended, (c) any payment in connection with the Brush Wellman Inc. Key
     Employee Share Option Plan, as amended, or the Brush Engineered Materials
     Inc. Key Employee Share Option Plan, as amended, and (d) all other payments
     which shall be determined by the Committee, under non-discriminatory rules
     uniformly applied, to represent a fringe or supplemental benefit with
     respect to such an Employee; provided, however, and subject to the
     exception made in the next sentence, Credited Compensation shall be
     determined as if there were no reduction of such Credited Compensation

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     pursuant to the CODA provisions of Article III or pursuant to any salary
     reduction agreement under a plan intended to be qualified under Section 125
     of the Code.

                                       IV.

          Paragraph (15) of Section 1.1 of the Plan is amended to provide as
     follows:

         (15) EMPLOYER: The Company, Brush Wellman Inc., and any other
     corporation or business organization that has adopted the Plan pursuant to
     Article XII.

                                       V.

          Paragraph (30) of Section 1.1 of the Plan is amended to provide as
     follows:

          (30) PLAN: The plan, the terms and provisions of which are herein set
     forth, and as it has been or may be amended or restated from time to time,
     designated as "The Brush Wellman Inc. Savings and Investment Plan" in
     respect of periods prior to the Effective Time and as "The Brush Engineered
     Materials Inc. Savings and Investment Plan" in respect of periods from and
     after the Effective Time.

                                       VI.

          The first sentence of Section 11.8 of the Plan is amended to provide
     as follows:

     Coverage under the Plan may be extended to any plant, location, operating
     unit, or classification of employees of an Employer that is not already
     covered under the Plan pursuant only to an amendment to Schedule I of the
     Plan in accordance with the procedures set forth for Plan amendments in
     Section 13.2.

                                      VII.

          The first sentence of Section 12.1 of the Plan is amended to provide
     as follows:

     Any corporation or other business organization other than the Company may,
     with the consent of the Board of Directors of the Company, adopt the Plan
     and thereby become an Employer hereunder by executing a duly authorized
     instrument and filing a copy thereof with the Company; provided, however,
     that Brush Wellman Inc. shall be deemed to have adopted the Plan and Brush
     Engineered Materials Inc. shall be deemed to have consented thereto,
     without further action on the part of either.

                                      -2-
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                                      VIII.

         Schedule I to the Plan is amended by changing all references to
"Company" contained therein to "Brush Wellman Inc."

                                       IX.

         The foregoing changes to the Plan shall be effective as of the
"Effective Time" as defined in that certain Agreement of Merger executed or to
be executed by and among Brush Merger Co., Brush Wellman Inc. and Brush
Engineered Materials Inc.

         Executed at Cleveland, Ohio, this 10th day of May, 2000.

                                         BRUSH WELLMAN INC.

                                         By: /s/ Michael C. Hasychak
                                            -----------------------------
                                            Title: Secretary

                                         And /s/ William M. Christoff
                                            -----------------------------
                                            Title: Assistant Treasurer

         Effective as of the "Effective Time" (as hereinbefore defined),
Brush Engineered Materials Inc. hereby assumes the status of the "Company"
under the Plan.

         Executed at Cleveland, Ohio, this 10th day of May, 2000.

                                         BRUSH ENGINEERED MATERIALS INC.

                                         By:/s/ Michael C. Hasychak
                                            -----------------------------
                                            Title: Secretary

                                         And /s/ William M. Christoff
                                            -----------------------------
                                            Title: Assistant Treasurer

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                                                                    Exhibit 4(b)

                               BRUSH WELLMAN INC.
                                       AND
                         BRUSH ENGINEERED MATERIALS INC.

             AMENDMENT TO BRUSH WELLMAN INC. 1989 STOCK OPTION PLAN

                  Brush Wellman Inc., an Ohio corporation ("BRUSH"), and Brush
Engineered Materials Inc., an Ohio corporation ("BEM"), hereby amend the Brush
Wellman Inc. 1989 Stock Option Plan (the "1989 PLAN") for the purpose of
substituting BEM for Brush under the 1989 Plan and to otherwise reflect the
terms of the reorganization of Brush through the merger of Brush Merger Co. into
Brush and the conversion of shares of common stock of Brush, par value $1.00 per
share, into shares of BEM, without par value:

         1. The 1989 Plan is hereby named the Brush Engineered Materials Inc.
1989 Stock Option Plan.

         2. In accordance with Paragraph 9 of the 1989 Plan, Paragraph 10 is
hereby added thereto, to read, in its entirety, as follows:

         "        10. Notwithstanding anything contained herein to the contrary,
         from and after the consummation of a merger of Brush Merger Co. into
         the Company on the terms approved by the shareholders of the Company on
         May 2, 2000 (the "Merger")

                  (i)      Brush Engineered Materials Inc. ("BEM") will (A)
                           automatically succeed to the Company as the issuer
                           under this Stock Option Plan, (B) be assigned, accept
                           and assume all the powers, rights, liabilities,
                           obligations and duties of the Company immediately
                           prior to the time BEM succeeded to this Stock Option
                           Plan and (C) perform the terms of this Stock Option
                           Plan in the same manner and to the same extent as the
                           Company was required to perform them immediately
                           prior to the succession;

                  (ii)     The terms of this Stock Option Plan will be binding
                           upon and inure to the benefit of BEM;

                  (iii)    References in this Stock Option Plan to the
                           "Company's Common Stock" will be interpreted to mean
                           the common stock of BEM, without par value, subject
                           to any adjustments authorized by Paragraph 5 of this
                           Stock Option Plan; and

                  (iv)     Each Stock Option Agreement entered into pursuant to
                           this Stock Option Plan will be interpreted to be
                           consistent with this Stock Option Plan to the extent
                           that it would have been consistent with this Stock
                           Option Plan had BEM not succeeded to Brush as issuer
                           hereunder."

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                  IN WITNESS WHEREOF, each of the undersigned has caused the
foregoing amendment to be duly executed and delivered.

                                    BRUSH WELLMAN INC.

                                    /s/ Michael C. Hasychak
                                    --------------------------------------------
                                    By:  Michael C. Hasychak
                                         Vice President, Secretary and Treasurer

                                    BRUSH ENGINEERED MATERIALS INC.

                                    /s/ Michael C. Hasychak
                                    --------------------------------------------
                                    By:  Michael C. Hasychak
                                         Vice President, Secretary and Treasurer

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