Home / Cybersecurity / NIS2 in Luxembourg / Chemicals

NIS2 for chemical companies in Luxembourg

Chemicals is listed in Annex II of the NIS2 directive. Medium and large companies are important entities (lighter supervision, after the fact). In Luxembourg, the rules come from the Law of 5 May 2026 transposing NIS2, applicable since 10 May 2026; the authority is the Institut Luxembourgeois de Régulation (ILR).

→ Talk to a cybersecurity advisor

Who is covered in this sector

• Manufacturers of substances and mixtures
• Distributors of substances and mixtures (within the meaning of REACH)

Companies that only use chemicals in their own processes are not in scope because of that.

The threats we see most in chemicals

• Attacks on process-control systems (safety impact)
• Ransomware on production and logistics
• Theft of formulations and trade secrets
• Supplier and contractor access abuse

Five priority measures

1. 01 Separate safety-instrumented systems and OT from IT
2. 02 Contractor access management with logging
3. 03 Incident scenarios combining cyber and process safety
4. 04 Offline backups of recipes and control configurations
5. 05 Security review of distributors and logistics partners

What Luxembourg requires

• The law of 5 May 2026 was published in the Mémorial A (No. 225) and has applied since 10 May 2026.
• The competent authority is the ILR. Self-registration was due within two months, i.e. by 10 July 2026.
• Entities must adopt a cyber-risk management policy covering the ten minimum measures of the directive (risk analysis, incident handling, business continuity, supply-chain security, cryptography…).
• Incident reporting: early warning within 24 hours, notification within 72 hours, final report within one month.

Significant incidents: early warning within 24 hours, notification within 72 hours, final report within one month. Fines set by the directive: up to €10 million or 2% of worldwide turnover for essential entities, and up to €7 million or 1.4% for important entities (whichever is higher).

Tools and guides

Chemicals in other countries

Other sectors in Luxembourg

Frequently asked questions

Is my chemical companie company in scope of NIS2 in Luxembourg?

Chemicals is an Annex II sector. Medium and large companies are important entities (lighter supervision, after the fact). Small companies are generally out of scope unless designated. Our NIS2 check gives you the answer in two minutes.

What should we do first?

Register if you are in scope, name an owner, run a short risk assessment, and fix the basics: MFA, tested backups, patching, incident routine.

We are a supplier to this sector. Does it affect us?

Yes, indirectly: your customers must secure their supply chain and will ask you for evidence. See our supplier questionnaire guide.

Sources

• Guichet.lu / ILR — NIS2
• PwC Luxembourg — NIS2 in Luxembourg
• Paperjam — Up to 2,000 entities face NIS2 deadline

Last checked: 28 September 2026. This page is general information, not legal advice.