The applicants sought relief under sections 135 and 89 of the Labour Relations Act, alleging that the respondents entered into an unlawful arrangement during a lawful strike in the industrial, commercial and institutional (ICI) sector of the construction industry.
Members of the respondent union employed by Kamtar went on strike but later returned to perform the same work for Quinard under a 'maintenance agreement'.
The Board found that the work, which involved replacing large pieces of equipment and installing new piping, constituted construction work in the ICI sector, not maintenance work.
Consequently, the arrangement between Quinard and the union violated section 146(2) of the Act.
The Board directed the respondents to cease applying the maintenance agreement and to cease supplying and employing union members on the project.