Can you provide a source that prove that please ? 

I ask this because : 

- "Brussels offices center" has this denomination since 2011 : https://www.ejustice.just.fgov.be/tsv_pdf/2011/04/29/11065282.pdf and i don't find any governemental organisation in it. 
- Parking slab is still in use by Tondeur Diffusion 
- association of co-owners don't mention the name at all : https://kbopub.economie.fgov.be/kbopub/zoeknummerform.html?nummer=0700.927.146&actionLu=Rechercher And usualy they love to put name on this ...
- 3 stage (who is in bad shape) will be transformed soon : https://openpermits.brussels/fr/_01/PU/1846019 (one again no name)
- The building itself is "Ancien siège de la société ASAR" https://monument.heritage.brussels/fr/Anderlecht/Avenue_Frans_van_Kalken/9/38621 And ASAR is now Tondeur diffusion who is a co-owner of the building like brussels offices center and others.

