Case | HBS Case Collection | January 2004 (Revised October 2006)

Texas Gulf Sulphur: The Timmins Ontario Mine

by Henry B. Reiling and Maria Mercedes Camargo


Employees, officers, and directors of Texas Gulf Sulphur acquired or tipped off others to acquire common stock or options before and concurrent with the announcement of a major discovery of ore. The question is whether any of these acquisitions violated either federal securities law, state fiduciary law, or ethical standards.

Keywords: Acquisition; Ethics; Stock Options; Lawfulness; Mining Industry; Texas;


Reiling, Henry B., and Maria Mercedes Camargo. "Texas Gulf Sulphur: The Timmins Ontario Mine." Harvard Business School Case 204-114, January 2004. (Revised October 2006.)