EXHIBIT 1.8(c) FIRST AMENDMENT TO PARTICIPATION AGREEMENT AMONG AMERICAN GENERAL LIFE INSURANCE COMPANY, AMERICAN GENERAL SECURITIES INCORPORATED, AMERICAN GENERAL SERIES PORTFOLIO COMPANY AND THE VARIABLE ANNUITY LIFE INSURANCE COMPANY THIS FIRST AMENDMENT TO PARTICIPATION AGREEMENT ("Amendment") dated as of July 21, 1998, amends the Participation Agreement dated as of February 26, 1998 (the "Agreement"), among AMERICAN GENERAL LIFE INSURANCE COMPANY (the "Company"), on its own behalf and on behalf of each separate account of the Company set forth on Schedule B of the Agreement (the "Account"), AMERICAN GENERAL SECURITIES INCORPORATED ("AGSI"), AMERICAN GENERAL SERIES PORTFOLIO COMPANY (the "Fund"), and THE VARIABLE ANNUITY LIFE INSURANCE COMPANY (the "Adviser"), collectively, the "Parties." All capitalized terms not otherwise defined in this Amendment, shall have the same meaning as ascribed in the Agreement. WHEREAS, from time to time, the Company will offer new Variable Insurance Products which are not covered under the Agreement, but for which the Fund will act as an investment vehicle for the Company's Accounts; and WHEREAS, the Company and the Adviser have reached an agreement to provide for the reimbursement to the Company by the Adviser of certain of the administrative costs and expenses incurred by the Company in connection with the servicing of owners of Contracts covered under the Agreement, who have allocated Contract values to a Portfolio, including, but not limited to, responding by the Company to various Contract owner inquiries regarding a Portfolio, and record keeping relating thereto; and WHEREAS, the parties now desire to amend the Agreement to reflect, among other things, (i) the new Variable Insurance Product for which the Fund will act as an investment vehicle for the Accounts, and (ii) the agreement of the Parties with respect to the Adviser's reimbursement to the Company of certain of the Company's administrative costs and expenses; NOW, THEREFORE, in consideration of their mutual promises, the Parties agree as follows: 1. Schedule B to the Agreement, a revised copy of which is attached hereto, is hereby amended to add the Legacy Plus Contract. 2. The Parties acknowledge that from time to time the Company will introduce new Variable Insurance Products for which the Fund will act as an investment vehicle for certain of the Company's Accounts. In this regard, the Parties agree that the Company may, upon written notice to the other Parties, add such new Variable Insurance Products and Separate Accounts of the Company to Schedule B of the Agreement, and thereby amend Schedule B of the Agreement. 3. The following new 3.2(e) paragraph is added to the Agreement: "3.2. Expenses. . . . . (e) Certain Administrative Expenses of the Company. The Adviser will reimburse the Company on a calendar quarterly basis, for certain of the administrative costs and expenses incurred by the Company as a result of operations necessitated by the beneficial ownership of shares of the Portfolios of the Fund by owners of those Contracts which are subject to such reimbursement as indicated on Schedule B hereto. Such reimbursement shall be in an amount equal to fifteen (15) basis points per annum of the net assets of the Funds attributable to such Contracts. The determination of applicable assets shall be made by averaging assets in applicable Portfolios of the Fund as of the last Business Day of each calendar month falling within the applicable calendar quarter. In no event shall such fee be paid by the Fund, its shareholders or by any Contract owner. 4. Except as amended hereby, the Agreement is hereby ratified and confirmed in all respects. IN WITNESS WHEREOF, the Parties hereto has caused this Agreement to be executed in its name and on its behalf by its duly authorized representative hereto as of the date specified above. AMERICAN GENERAL LIFE INSURANCE COMPANY, on behalf of itself and each of its Accounts named in Schedule B hereto, as amended from time to time. By: ----------------------------- Don M. Ward Senior Vice President - Variable Products AMERICAN GENERAL SECURITIES INCORPORATED By: ----------------------------- F. Paul Kovach, Jr. President THE VARIABLE ANNUITY LIFE INSURANCE COMPANY By: ----------------------------- Thomas L. West, Jr. President and CEO AMERICAN GENERAL SERIES PORTFOLIO COMPANY By: ----------------------------- Cynthia A. Toles General Counsel and Secretary SCHEDULE B SEPARATE ACCOUNTS AND CONTRACTS+ NAME OF SEPARATE ACCOUNT AND REGISTRATION NUMBERS AND NAMES OF CONTRACTS DATE ESTABLISHED BY BOARD OF DIRECTORS FUNDED BY SEPARATE ACCOUNT American General Life Insurance Company Registration Nos.: Name of Contract: Separate Account A 33-44744 Group and Individual Variable Established: August 14, 1967 811-1491 Annuity 33-44745 Individual Variable Annuity 811-1491 American General Life Insurance Company 333-40637 Select Reserve Flexible Payment Separate Account D 811-02441 Variable and Fixed Individual Established: November 19, 1973 Deferred Annuity* 33-43390 VAriety Plus Variable Annuity 811-2441 American General Life Insurance Company 333-42567 Platinum Investor I and Platinum Separate Account VL-R 811-08561 Investor II Variable Life Insurance Established: May 6, 1997 Policies* 333-53909 Legacy Plus Variable Life Insurance 811-08561 Policies* *Subject to reimbursement of certain administrative expenses as set forth in Paragraph 3.2(e) of the Participation Agreement above. +The parties hereto agree that this Schedule B may be revised and replaced as necessary to accurately reflect the Separate Accounts and Contracts covered under this Agreement.