Graybar Electric Company, Inc. Supplemental Benefit Plan, amended and restated, effective January 1, 2016

Supplemental Pension Benefit. The supplemental pension benefit payable to an eligible Participant or the Participant’s spouse shall equal the excess, if any, of (A) over (B), where:

is the Retirement Income which would have been paid to such Participant or the Participant’s spouse under the Pension Plan if the provisions of Code §§401(a)(17) and 415 did not apply and Compensation as defined in Section 4 hereof were used in determining such Retirement Income; and

is the Retirement Income which is payable to the Participant or the Participant’s spouse under the Pension Plan.

Supplemental Profit Sharing Benefit. The supplemental profit sharing benefit credited on behalf of an eligible Participant for a Plan Year shall equal the excess, if any, of (C) over (D), where:

is the allocation which would have been made to such Participant's Account B under the Profit Sharing Plan for any Plan Year if the limitations imposed by Code §§401(a)(17) and 415 did not apply and Compensation as defined in Section 4 hereof were used in determining such allocation; and

is the allocation which is made to such Participant's Account B under the Profit Sharing Plan for such Plan Year.

Deferred Compensation Benefit. The deferred compensation benefit credited on behalf of an eligible Deferred Compensation Participant for a Plan Year shall equal the portion of the Participant’s annual base salary and annual incentive payment that such Participant has elected to defer with respect to such Plan Year in accordance with this Supplemental Benefit Plan and the terms of the deferred compensation agreement between the Participant and the Company. If the Participant elects to defer a portion of the Participant’s annual base salary with respect to a Plan Year, such Participant must defer at least two percent but no more than fifty percent of the Participant’s annual base salary. If the Participant elects to defer a portion of the Participant’s annual incentive payment, such Participant must defer at least two percent but no more than one hundred percent of the Participant’s annual incentive payment. Any deferral election hereunder must be made before the beginning of the Plan Year in which the compensation to be deferred is earned.

Supplemental Match Benefit. The supplemental match benefit credited on behalf of an eligible Match Participant for a Plan Year shall equal the excess, if any, of (E) over (F), where:

is the Company Match which would have been made to such Participant’s Account D under the Profit Sharing Plan for any Plan Year if the limitations imposed by Code §§401(a)(17), 402(g) and 415 did not apply (but specifically recognizing any limitations imposed by the ADP or ACP tests set forth in Code §§401(k) and 401(m), respectively) and Compensation as defined in Section 4 hereof were used in determining such Company Match; and

is the Company Match which was made to such Participant’s Account D under the Profit Sharing Plan for such Plan Year.

Supplemental Pension Benefit. A Participant who is age 55 or older (and has reached the earlier of his or her Early Retirement Date or Normal Retirement Date, each as defined in the Pension Plan) at the time of termination from employment and is entitled to a supplemental pension benefit shall be paid the Actuarial Present Value (as defined in the Pension Plan and determined below) of such benefit in ten annual installments, beginning as soon as administratively possible on or after the January 1 following the Participant’s termination of employment, but in no event later than March 15 of such year. For this purpose, the Actuarial Present Value of the Participant's benefit shall be determined as of the date of the Participant's termination of employment using the generally applicable actuarial factors set forth in the Pension Plan before any application of Code §§415 or 417(e). Interest on any unpaid installments shall be credited at the rate used to calculate the Actuarial Present Value through December 31 of the year prior to the applicable January 1. Notwithstanding the foregoing, a supplemental pension benefit shall be payable in the event the Participant terminates employment before age 55 or dies or in the event of a Change in Control Event, as defined in Section 409A of the Code (“Change in Control”) with respect to the Company, to the extent provided below.

In the event that the Participant’s employment terminates before the Participant attains age 55, but after the earlier of his or her Early Retirement Date or Normal Retirement Date, each as defined in the Pension Plan, the Actuarial Present Value of the Participant’s supplemental pension benefit, plus interest through December 31 of the year in which the termination of employment occurs, shall be payable in an immediate lump sum as soon as administratively possible on or after the January 1 following the Participant’s termination of employment, but in no event later than March 15 of such year.

In the event that the Participant’s employment terminates prior to the earlier of his or her Early Retirement Date or Normal Retirement Date, each as defined in the Pension Plan, the Actuarial Present Value of the Participant’s supplemental pension benefit and of the Retirement Income otherwise payable to the Participant shall be determined using the applicable interest rate and applicable mortality table prescribed by the Secretary of the Treasury pursuant to Code §417(e). For this purpose, the interest rate used for distributions made pursuant to this paragraph shall be the applicable interest rate for the month of November in the prior Plan Year. The Actuarial Present Value of the Participant’s supplemental pension benefit, plus interest at the first segment rate through December 31 of the year in which the termination of employment occurs, shall be payable in an immediate lump sum as soon as administratively possible on or after the January 1 following the Participant’s termination of employment, but in no event later than March 15 of such year.

(A)    Subject to Subsection (6), in the event of the death of a Participant before attaining age 55 and before supplemental pension benefit payments have commenced, as applicable, hereunder, the Actuarial Present Value of the supplemental pension benefit payable to the Participant, plus interest through December 31 of the year in which the death occurs, shall be payable to the Participant’s spouse in an immediate lump sum as soon as administratively possible on or after the January 1 following the Participant’s death, but in no event later than March 15 of such year. If the Participant is not married on the date of death, no supplemental pension benefit shall be payable hereunder on behalf of the Participant. In the event the Participant is married on the date of death, but his or her surviving spouse dies before the supplemental pension benefit is paid, such benefit shall be paid to the surviving spouse’s named beneficiary, or to the spouse’s estate if there is no beneficiary on file.

Subject to subsection (6), in the event of the death of a Participant on or after attaining age 55 and before supplemental pension benefit payments have commenced, as applicable, hereunder, any supplemental pension benefit, plus interest through December 31 of the year prior to the applicable January 1, shall be paid to the Participant’s spouse in ten annual installments, beginning as soon as administratively possible on or after the January 1 following the Participant’s death, but in no event later than March 15 of such year. Any installments remaining upon the death of the spouse shall continue to be made annually to the spouse’s named beneficiary or to the spouse’s estate if there is no beneficiary on file. Payments shall be made as soon as administratively possible beginning on or after the January 1 following the death of the spouse, but in no event later than March 15 of such year. Interest on any unpaid installments shall be determined as set forth in Section 6(a). If the Participant is not married on the date of death, no supplemental pension benefit shall be payable hereunder on behalf of the Participant.

In the event of a Change in Control with respect to the Company, the Actuarial Present Value of any unpaid supplemental pension benefit, plus interest to the date of payment, shall be payable in an immediate lump sum as soon as administratively possible on or after the date of the Change in Control, but in no event later than March 15 following the Plan Year in which the Change in Control occurs.

Notwithstanding anything herein to the contrary, the Participant may request, and, in its sole and absolute discretion, the Company may agree to allow the Participant to change the method or time for distribution of any supplemental pension benefit payable hereunder, in accordance with such form and procedures as the Company may establish from time to time; provided that such agreement is reached and recorded at least 12 months prior to the date the benefit payment hereunder would otherwise commence, as applicable, and such agreement shall not take effect until at least 12 months following the date on which such agreement was reached and recorded, and any such agreement defers the payment for a period of at least five years from the date it would otherwise be made.

Notwithstanding anything herein to the contrary, payment of the supplemental pension benefit shall commence, as applicable, at the time and in the manner provided with respect to the first to occur of a termination of employment, death or Change in Control, to the extent provided herein, and any such subsequent event (other than a Change

Supplemental Profit Sharing Benefit, Deferred Compensation Benefit and Supplemental Match Benefit. If the Participant has executed a deferred compensation agreement with the Company for the Plan Year prior to January 1 thereof, any Compensation the Participant has elected to defer in accordance with the terms hereof and the supplemental profit sharing benefit and supplemental match benefit, if any, to which the Participant is entitled hereunder for such Plan Year shall automatically be credited to the deferred compensation account established for the Participant on the Company's books pursuant to such agreement and this Supplemental Benefit Plan, shall be credited with interest at the rate determined under the Participant’s deferred compensation agreement and shall be payable, at or after the termination of the Participant's employment, as provided herein, in accordance with the terms of such deferred compensation agreement. With respect to the supplemental match benefit, such amount shall be paid in accordance with the terms of such deferred compensation agreement if and only if the Participant is fully vested in the value of the Participant’s interest in Account D under the Profit Sharing Plan. Any such election to defer shall remain in effect only for the given Plan Year. Any supplemental match benefits which are not fully vested at the time of termination shall be forfeited and never restored.

No Deferred Compensation Election. If no deferred compensation agreement is in force with respect to the Participant for the Plan Year, any supplemental profit sharing benefit payable for such Plan Year shall be paid to the Participant on April 1 following the Plan Year with respect to which such supplemental profit sharing benefit applies.

Employment Termination on or after Age 55. In the event that the Participant’s employment terminates on or after the Participant attains age 55, any supplemental profit sharing benefit, deferred compensation benefit and supplemental match benefit credited on behalf of such Participant, plus interest through December 31 of the Plan Year which immediately precedes the last applicable January 1 installment, as set forth below, shall be payable to the Participant beginning as soon as administratively possible on or after the January 1 following the Participant’s termination of employment, but in no event shall such benefits commence later than March 15 of such Plan Year.

With respect to a Participant who was hired, or was last re- hired, by the Company before July 1, 2015, such benefits shall be payable in ten equal annual installments.

With respect to a Participant who is hired, or is last re-hired, by the Company on or after July 1, 2015, such benefits shall be payable in five equal annual installments.

Employment Termination Before Age 55. In the event that the Participant’s employment terminates before the Participant’s attainment of age 55, any supplemental profit sharing benefit, deferred compensation benefit and supplemental match benefit credited on behalf of such Participant, plus interest through December 31 of the Plan Year in which the Participant terminates employment, shall be payable in an immediate lump sum as soon as administratively possible on or after the January 1 following the Participant’s termination of employment, but in no event later than March 15 of such Plan Year.

Death Before Age 55. Subject to subsection (10), in the event of the death of a Participant before attaining age 55 and before any supplemental profit sharing benefits, deferred compensation benefits or supplemental match benefits have commenced, any supplemental profit sharing benefit, deferred compensation benefit and supplemental match benefit credited on behalf of such Participant, plus interest through December 31 of the Plan Year in which the Participant dies, shall be payable to the Participant’s beneficiary in an immediate lump sum as soon as administratively possible on or after the January 1 following the date of the Participant’s death, but in no event later than March 15 of such Plan Year.

Death On Or After Age 55. Subject to subsection (10), in the event of the death of a Participant, on or after attaining age 55 and before any supplemental profit sharing benefits, deferred compensation benefits

With respect to a Participant who was hired, or was last re- hired, by the Company before July 1, 2015, such benefits shall be payable to the beneficiary in ten equal annual installments.

With respect to a Participant who is hired, or last re-hired, by the Company on or after July 1, 2015, such benefits shall be payable to the beneficiary in five equal annual installments.

Change in Control. In the event of a Change in Control of the Company, any unpaid supplemental profit sharing benefit, deferred compensation benefit and supplemental match benefit, plus interest to the date of payment, shall be payable in an immediate lump sum as soon as administratively possible on or after the date of the Change in Control, but in no event later than March 15 following the Plan Year in which the Change in Control occurs.

Disability.

Subject to subsection (10), in the event that a Participant is Disabled, as determined in accordance with Section 409A of the Code, prior to age 55 and before any supplemental profit sharing benefits, deferred compensation benefits or supplemental match benefits have commenced, any supplemental profit sharing benefit, deferred compensation benefit and supplemental match benefit, plus interest through the end of the calendar month in which the Disability occurred, shall be payable in an immediate lump sum as soon as possible on or after the first day of the calendar month following the date of such Disability, but in no event later than March 15 following the Plan Year in which the Disability occurs.

In the event that a Participant is so Disabled on or after age 55 and before any such benefits have commenced, any supplemental profit sharing benefit, deferred compensation benefit and supplemental match benefit credited on behalf of such Participant, plus interest through December 31 of the Plan

Unforeseeable Emergency. A Participant may apply in writing to the Company for, and the Company may permit, the acceleration of a distribution of all or part of a Participant’s unpaid supplemental profit sharing benefit, deferred compensation benefit and/or supplemental match benefit (to which such Participant is vested) if the Company, in its sole discretion, determines that the Participant has incurred an Unforeseeable Emergency. For purposes of this Supplemental Benefit Plan, an Unforeseeable Emergency shall be deemed to exist when the Company, in its sole and absolute discretion, determines that a Participant requires a distribution to meet an Unforeseeable Emergency, as determined in accordance with Section 409A of the Code. A distribution based upon Unforeseeable Emergency shall be limited to the amount reasonably necessary to meet the immediate financial need created by such Unforeseeable Emergency, plus the federal and state taxes due on such amount, as determined by the Company. The Company may require a Participant who requests such a distribution to submit such evidence as the Company, in its sole discretion, deems necessary or appropriate to substantiate the circumstances upon which the request is based. Any distribution due to an Unforeseeable Emergency hereunder shall be made as soon as administratively possible on or after the first day of the calendar month following the date on which the Company has determined, in its sole and absolute discretion, that an Unforeseeable Emergency exists.

Change in Distribution Method or Timing. Notwithstanding anything herein to the contrary, the Participant may request, and, in its sole and absolute discretion, the Company may agree to allow the Participant to change the method or time for distribution of any supplemental profit sharing benefits, deferred compensation benefits or supplemental match benefits payable hereunder, in accordance with such form and procedures as the Company may establish from time to time; provided that such agreement is reached and recorded at least 12 months prior

Impact of Subsequent Distributable Events. Notwithstanding anything herein to the contrary, payment of the supplemental profit sharing benefit, deferred compensation benefit and supplemental match benefit shall commence, as applicable, at the time and in the manner provided herein with respect to the first to occur of a termination of employment, death, Disability or Change in Control, to the extent provided herein, and any such subsequent event (other than a Change in Control, as provided below) shall not change the time and form of payment. Upon a Change in Control subsequent to a termination of employment, death or Disability of the Participant, payment of any unpaid benefit shall be payable in accordance with subsection (6) above. In the event of the death of a Participant after a termination of employment, Disability or Change in Control, distribution of any unpaid supplement profit sharing benefits, deferred compensation benefits and supplemental match benefits shall commence or continue, as applicable, to the Participant’s beneficiary at such time and in such form as provided on account of such termination of employment, Disability or Change in Control, without regard to such death.

Interest Crediting on Installments. For purposes of Section 6(b) interest paid on any unpaid installments shall be credited at the rate determined under the Participant’s deferred compensation agreement.

To avoid administrative difficulties: (i) If and only if Section 6 otherwise provides for the payment of a benefit following the death of the Participant or beneficiary, a Participant may name a beneficiary to receive his or her interest in the Plan in the event of the Participant’s death and the beneficiary of a Participant may also name a beneficiary to receive benefits in the event of the beneficiary’s death; (ii) Notwithstanding the preceding, in the event a Participant or beneficiary fails to name a beneficiary to whom benefits can be paid, the benefit shall be paid to the estate of the Participant or the beneficiary as the case may be. In the event a Participant or a beneficiary dies with no beneficiary on file and no estate has been opened, the Company has the discretion, upon presentation of satisfactory documentation, to pay benefits to specific individuals in lieu of requiring that an estate be opened for the purpose of receiving said benefits; and (iii) If any beneficiary, including a spouse of a Participant, shall die simultaneously with the person whose death gives rise to the beneficiary’s right to receive benefits under the Plan,

For purposes of this Section 6, in order to constitute a termination of employment, a Participant must terminate employment with the Company, as well as any affiliate or subsidiary of the Company. If a Participant terminates employment with the Company, but becomes employed with a subsidiary or affiliate of the Company, he shall not be treated as having terminated employment for purposes of this Section 6. In order to qualify as a termination of employment under the Plan, the termination must also satisfy the definition of a separation from service under Code §409A and Treasury Regulations promulgated under Code §409A.

Claim - The Participant or other person who believes that he or she is being denied a benefit to which he or she is entitled (hereinafter referred to as “Claimant”) may file a written request for such benefit with the Company setting forth his or her claim. The Company shall advise the Claimant that a reply will be forthcoming within thirty (30) days and deliver a reply within thirty (30) days. However, the Company may extend the reply period for an additional fifteen (15) days for reasonable cause. If the claim is denied in whole or in part, the Company will adopt a written opinion using language calculated to be understood by the Claimant setting forth:

the specific reason or reasons for denial;

the specific references to pertinent Plan provisions on which the denial is based;

a description of any additional material or information necessary for the Claimant to perfect the claim and an explanation why such material or such information is necessary;

appropriate information as to the steps to be taken if the Claimant wishes to submit the claim for review, including a statement of the Claimant’s right to bring a civil action under Section 502(a) of ERISA following an adverse benefit determination on review; and

the time limits for review under Subsection 11(b), below.

Review – Within sixty (60) days after the receipt by the Claimant of the written opinion described above, the Claimant may request in writing that the previous determination be reviewed by the Employees’ Benefit Committee (hereinafter referred to as the “Committee”). If the Claimant does not request a review of the Company’s determination within such 60- day period, he or she shall be barred and estopped from challenging the Company’s decision. The Claimant or his or her duly authorized representative may, but need not, review the pertinent documents and submit issues and comments in writing for consideration by the Committee. Within thirty (30) days after the Committee’s receipt of a request for review, it will render a written opinion setting forth the specific reasons for the decision, the specific references to

The Supplemental Benefit Plan shall be administered by the Company in a manner generally consistent with the substance of Article VIII of the Pension Plan. The Company may designate such person(s) as it deems appropriate to assume all or any portion of such administration.

This Supplemental Benefit Plan is intended to comply with Code Section 409A and related U.S. Treasury Regulations or pronouncements and any ambiguous provision will be construed in a manner that is compliant with or exempt from the application of Code Section 409A.