BESIX + Jan De Nul + CFE Contracting + DEME Group + BAM Contractors NV, Oosterweelverbinding Lantis Antwerp ring closure, Limosa-L + §30bis RSZ-ONSS 35% withholding.
Belgian civil mega-project prime workforce against BESIX Group SA (Brussels HQ; privately held; Oosterweel + Princess Elisabeth Island scope), Jan De Nul Group (Aalst HQ; privately held; offshore + civil; Voltaire jack-up vessel commissioned 2024), CFE (Compagnie d'Entreprises CFE SA — Euronext Brussels CFEB; CFE Contracting: MBG + Van Laere + BPC + Vanhout; DEME Group demerged + separately listed June 2022), BAM Contractors NV (subsidiary of Royal BAM Group — Euronext Amsterdam BAMNB), and Eiffage Benelux (subsidiary of Eiffage SA — Euronext Paris FGR) — Oosterweelverbinding Antwerp ring closure (Lantis / Vlaamse Overheid contracting authority; multi-billion EUR programme; Scheldt tunnel lot awarded to TM Rinkonien consortium — BESIX + Jan De Nul + Artes Roegiers + DEME); Brussels Metro Line 3 (Beliris / STIB-MIVB contracting). Limosa-L declaration (Arrêté royal 20 mars 2007) + §30bis Wet 27 juni 1969 RSZ-ONSS 35% withholding joint-and-several liability for social-security debts + Loi du 12 avril 1965 protection of remuneration + CAO 124 construction sector + Constructiv sectoral fund.
Request Technical BriefingRegulator exposure profile
- Limosa-L + §30bis RSZ-ONSS28%
- Loi 12 avril 1965 + CAO PC 12426%
- Constructiv + Sociale Inspectie24%
- FSMA + BCE/KBO listed-issuer22%
Belgian civil-mega prime cascade exposure axes.
Belgian civil-mega prime matrix against BESIX / Jan De Nul / CFE Contracting / BAM Contractors / Eiffage Benelux × Limosa-L + §30bis RSZ-ONSS + Loi 12 avril 1965 + Constructiv PC 124.
| BESIX | Jan De Nul | CFE Contracting | BAM Contractors | Eiffage Benelux | |
|---|---|---|---|---|---|
| Limosa-L declaration | covered | covered | covered | covered | covered |
| §30bis RSZ-ONSS | covered | covered | covered | covered | covered |
| CAO PC 124 + Constructiv | covered | covered | covered | covered | covered |
| Sociale Inspectie audit | covered | covered | covered | covered | covered |
- In-scope
- Conditional
- Tightening
- Out of scope
§30bis 35% withholding cascades to principal when sub-contractor RSZ-ONSS debts trigger non-compliance flag at FOD Finance check.
Named projects in this jurisdiction
- Oosterweelverbinding Antwerp ring closure (Lantis / Vlaamse Overheid contracting authority; multi-billion EUR programme; Scheldt tunnel lot awarded to TM Rinkonien consortium — BESIX + Jan De Nul + Artes Roegiers + DEME; COTU consortium awarded canal-tunnel lot) Lantis / Vlaamse Overheid
- Brussels Metro Line 3 (Noord-Zuid) (Beliris federal-Brussels cooperation + STIB-MIVB contracting; civil-works lots ongoing 2023-2030; multi-station tunnel-boring + cut-and-cover programme) Beliris + STIB-MIVB
- CFE (Compagnie d'Entreprises CFE SA) (Euronext Brussels CFEB; parent of CFE Contracting: MBG + Van Laere + BPC + Bâtiments et Ponts Construction + Vanhout; DEME Group demerged + separately listed June 2022) CFE (Euronext Brussels CFEB) 2022
- BESIX Group SA (Brussels HQ; privately held; Oosterweel + Princess Elisabeth Island scope) + Jan De Nul Group (Aalst HQ; Voltaire jack-up vessel commissioned 2024) + BAM Contractors NV (BAMNB) + Eiffage Benelux (FGR) BESIX + Jan De Nul + BAM + Eiffage
Belgian civil-mega prime: BESIX (Brussels HQ private; Oosterweel + PEI), Jan De Nul (Aalst HQ; Voltaire 2024 jack-up), CFE Contracting (Euronext Brussels CFEB; MBG + Van Laere + BPC + Vanhout — DEME demerged Jun 2022), BAM Contractors NV (BAMNB), Eiffage Benelux (FGR). Limosa-L + §30bis 35% withholding + CAO PC 124 + Constructiv govern.
01. Pre-pricing — CAO PC 124 + Constructiv
CAO PC 124 (construction sector) per worker. Constructiv contribution per worker per quarter. Different paritair comités per scope: PC 124 (civil), PC 111 (metalwork/EPC).
02. Limosa-L + A1 pre-deployment
Limosa-L declaration mandatory pre-notification per posted worker (RD 20 mars 2007). A1 portable document per non-Belgian-bank-payroll worker. §30bis non-compliant flag triggers 35% withholding to principal.
03. RSZ-ONSS + FOD Finance onboarding
RSZ-ONSS employer registration + §30bis status check. Sociale Inspectie / Inspection sociale audit per project. FOD Finance / SPF Finance compliance check at each payment.
04. RSZ-ONSS + Sociale Inspectie-defensible evidence pack
Minimum pack: Belgium-bank-traceable remuneration, Dutch/French-language contract, Limosa-L receipt, A1 receipt, CAO PC 124 wage-floor reconciliation, Constructiv receipt, §30bis compliance attestation per quarter.
05. India and Gulf sourcing corridors — the Belgium civil-prime pathway
Indian Larsen & Toubro Heavy Civil + Gulf Saudi Binladin / Six Construct pools route through Limosa-L + §30bis audit-grade chain-of-custody against BESIX, Jan De Nul, CFE Contracting, BAM Contractors, or Eiffage Benelux scopes.