RaphaelPasloin
It's a zone, the new BBP Brewery is also in "Port Sud" (Biestebroeck) ; there is a masterplan : https://canal.brussels/fr/content/anderlecht-l%E2%80%99architecte-de-port-sud-est-d%C3%A9sign%C3%A9 

Sticto sensu this zone will be limited as the PRAS designed in french as "Zone d'activités portuaires et de transport" , around this zone and BBP. But maybe more flexible  http://www.reflexcity.net/bruxelles/communes/anderlecht/quai-fernand-demets/coop) Until The Sluis van Molenbeek (there's was historical port activity there and project from "Abatan" and Grande Halle aslo refer to port sud (which is also a joint-venture company for the developement of the zone (SPRB and Anderlecht Municipality). 

