AM - MEX-TYO - $1081 OW Business

AM - MEX-TYO - $1081 One-Way Business. Varies slightly across different OTAs, that's the price showing for AM's site directly. Just stumbled across this one, appears to be January 1st departure only and one-way only. I'm not finding any round-trips for anywhere near $2000 or less. Google Flights Link