Corporate

Workplace Safety & Prevention Services Notes to Financial Statements March 31, 2022 3 (ii) WSIB Employees' Pension Plan Employees belong to the WSIB Employees' Pension Plan, which is a defined benefit plan that meets the definition of a multi-employer plan under ASPE 3462 and therefore is accounted for as a defined contribution plan. The plan provides for partially indexed pensions based on years of service and earnings rates near retirement. The investment activities and the administrative and accounting matters of the pension are administered by WSIB. (iii) WSIB Employees' Supplementary Pension Plan Employees also belong to the WSIB Employees' Supplementary Pension Plan. On January 1, 2021, WSIB transferred the obligation of funding the WSIB Employees' Supplementary Pension Plan to the Corporation and ceased to be a multiemployer plan under ASPE 3462 and became a defined benefit plan. The plan will continue to provide for partially indexed pensions based on years of service and earnings rates near retirement. The investment activities and the administration of the pension will continue to be administered by the WSIB. Use of estimates The preparation of financial statements in accordance with ASNPO requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenditures during the reporting period. Actual results could differ from management's best estimates as additional information becomes available in the future. Accounts requiring significant estimates include collectibility of accounts receivable, accrued and contingent liabilities and employee future benefits. Employee future benefits liabilities (note 8) are subject to measurement uncertainty because actual results may differ significantly from the Corporation's best long-term estimate of expected results. 3 Investments a) Short-term investments comprise the following: 2022 $ 2021 $ Guaranteed investment certificates maturing between April 4, 2022 and March 14, 2023 yielding between 1.56% and 3.20% (2021 – April 12, 2021 and March 14, 2022 yielding between 0.38% and 3.43%) 18,393,022 9,005,254

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