(c) Any person who willfully violates any provision of Title II of Public Law 91-508, or of this chapter authorized thereby, where the violation is either
- (1) Committed while violating another law of the United States, or
- (2) Committed as part of a pattern of any illegal activity involving more than $100,000 in any 12-month period, may, upon conviction thereof, be fined not more than $500,000 or be imprisoned not more than 10 years, or both.