Round three of NAFTA begins this weekend in Canada. According to a leaked possible itinerary obtained by Reuters the auto-sector “rules of origin” will be discussed on Tuesday or Wednesday.

The auto sector rules of origin have been exploited by China to send auto manufacturing parts into Mexico, including massive electronic components, where they are assembled and shipped into the U.S. under NAFTA. This trade maneuver is an exploitation, a back-door per se’, of the NAFTA agreement by China which Secretary Ross and USTR Robert Lighthizer are committed to stopping.

Secretary Wilbur Ross explains in this recent CNBC interview. WATCH: