Yes, of course, the SSPX is well established there as you can see from Miseremini's post.
If you are wanting the SSPX-Resistance, then you should contact the seminary of the SAJM, or Fr Picot (Thal-Drulingern, Alsace) as I think he may visit Belgium: Alsace (67): Thal Drulingen: Mass every Sunday (and most weekdays). Tel: Fr. Rémi Picot (06 69 02 70 39)
Seminary Contact: Address: 8, rue du docteur Picard, 49640 Morannes-sur-Sarthe - France
Seminary e-mail: sajm.secretariat@gmail.com
Tel: 09 83 59 75 78 - Mornings: 9am to 12pm / afternoons: 3pm to 6pm
Website:
http://www.apotresdejesusetdemarie.fr/