643.1. Every person who is guilty of an offence described in section 635 is liable,(1) for a first offence, to a fine of not less than $100 nor more than $1,000 in the case of a natural person or, in the case of a legal person, to a fine of not less than $300 nor more than $3,000 ;
(2) for any subsequent conviction, to a fine of not less than $200 nor more than $2,000 in the case of a natural person or, in the case of a legal person, to a fine of not less than $600 nor more than $6,000.