TORONTO - Power workers in Ontario have ratified a new three-year collective agreement with publicly owned utility Hydro One.

The Power Workers Union agreement comes as the Liberal government prepares to sell 60 per cent of the giant utility.

A copy of the agreement obtained by The Canadian Press in May shows existing workers will get shares in the utility equal to 2.7 per cent of their base pay every year from 2017 until 2028.

The government says the share payments are made possible as a result of increased employee pension contributions.

The ratified deal gives members of the Power Workers Union a one-per-cent annual wage increase.

The government says the increase will be offset by contracting out what it calls "non-core" services.