Ontario Securities Act
Interpretation
Section 1(4)

Subsidiary companies

A company shall be deemed to be a subsidiary of another company if,

(a) it is controlled by,

(i) that other, or

(ii) that other and one or more companies each of which is controlled by that other, or

(iii) two or more companies each of which is controlled by that other; or

(b) it is a subsidiary of a company that is that other’s subsidiary.