What role does business common sense play in the interpretation of commercial contracts? This issue was recently addressed by the Supreme Court of the United Kingdom in Rainy Sky S.A. v. Kookmin Bank. The answer: “where a term of a contract is open to more than one interpretation, it is generally appropriate to adopt the interpretation which is most consistent with business common sense”. Since there is currently some uncertainty in Canada on the point, Rainy Sky is an important case to consider.

Decision

Parent company guarantees and performance bonds are typically used in the construction and engineering industries to provide a developer with some security in the event that the contractor breaches the building or engineering contract or, in some circumstances, upon the contractor's insolvency.

In the current economic climate, contractor default is, unfortunately, even more prevalent in the construction and engineering industries, and so the issues surrounding parent company guarantees and performance bonds are very much in focus for developers.