WSP USA RETIREMENT SAVINGS PLAN

Profit-sharing plan.

Cash or deferred arrangement described in Code section 401(k) that is part of a qualified defined contribution plan under which employees may elect to defer part of their compensation or receive these amounts in cash.

Employee contributions are allocated to separate accounts under the plan or employer contributions are based in whole or in part on employee deferrals or contributions to the plan. Not applicable to 401(k) plans with only QNECs and/or QMACs or to 403(b)(1) 403(b)(7) or 408 arrangements.

Participant-directed brokerage accounts provided as an investment option under the plan.

Plan provides for automatic enrollment in plan that has elective contributions deducted from payroll.

Total or partial participant-directed account plan where plan uses a default investment account for participants who fail to direct assets in their account.

U.S.-based plan that covers residents of Puerto Rico and is qualified under both Code section 401 and section 1165 of the Internal Revenue Code of Puerto Rico.