Key takeaways
- Force majeure excuses non-performance only for events that are external, unforeseeable, and unavoidable — a cracker fire or hurricane-driven outage typically qualifies, but a producer's commercial decision to divert tonnes to a higher-priced market does not.
- Most resin FM clauses convert a full supply obligation into a pro-rata allocation duty, so the practical fight is rarely whether FM is valid but whether the producer's allocation across its customer book is fair and verifiable.
- Notice provisions are the most common point of failure: clauses routinely require written notice within a fixed window (often 3–15 days) with stated cause and estimated duration, and a late or vague notice can forfeit the defence entirely.
- Buyers protect supply by writing FM as a two-way right, capping its duration with a termination trigger, demanding allocation transparency, and diversifying origin and producer across the contract book rather than relying on a single supplier's reliability.
Force majeure is the clause every polymer buyer skims at signing and reads forensically the day a producer invokes it. In resin supply it is not an abstract legal nicety — it is the mechanism that decides who absorbs the loss when a cracker goes down, a hurricane shuts the US Gulf, or a feedstock line trips. Get the wording right and an outage becomes a managed allocation with a clear exit; get it wrong and you are holding a contract that delivers nothing while your converter lines starve.
The doctrine is narrow by design. Force majeure (FM) excuses a party from performing when an event that is external, unforeseeable at signing, and unavoidable despite reasonable steps makes performance impossible — not merely expensive. That last distinction is where most disputes live. A spike in feedstock or freight costs that crushes a producer's margin is a commercial misfortune, not a force majeure. A fire that takes an ethylene cracker offline for three months usually is. The clause is a risk-allocation tool, and the side that drafts it carelessly is the side that pays.
Resin FM clauses turn on causation. The headline events in our market are supply-side production failures and the logistics shocks that strand cargo. What separates a valid declaration from an opportunistic one is whether the producer could have foreseen or prevented it, and whether it has genuinely lost the ability to supply rather than the will.
| Event | Usually qualifies? | Why |
|---|---|---|
| Unplanned cracker shutdown (fire, mechanical, trip) | Yes | Sudden, external, not reasonably preventable |
| Hurricane / flood closing a production hub or port | Yes | Natural event outside party control |
| Feedstock supply cut to producer (upstream FM) | Often | Valid if genuinely external and not self-induced |
| Scheduled turnaround / planned maintenance | No | Foreseeable and planned — handle via supply scheduling |
| Feedstock or energy price spike (naphtha, ethane) | No | Economic hardship, not impossibility |
| Diversion of tonnes to a higher-priced market | No | Commercial choice, not a qualifying event |
| New tariff / antidumping duty | Sometimes | Depends on wording; often a separate change-in-law clause |
| Labour strike at producer or port | Usually | Often listed, but check carve-outs for own-workforce disputes |
The grey zone is the upstream chain. A polyolefin producer whose monomer feed is cut by its own supplier's FM will pass that disruption down the line. That is generally legitimate — but only if the original event is real and the producer cannot source replacement feedstock on commercially reasonable terms. A careful buyer's clause requires the seller to evidence the upstream cause, not merely assert it. The relationship between planned and unplanned outages is covered in more depth in our note on cracker turnarounds and supply shocks; the short version is that a turnaround on the producer's published schedule is never a force majeure.
Here is the practical reality most clauses get to: force majeure rarely zeroes out supply. It reduces it. When an event cuts a producer's available volume, the standard mechanism is allocation — the producer spreads the reduced output across its customer book, typically pro-rata to contract quantities. If a plant loses 40% of capacity, every contract customer might receive 60% of their contracted monthly volume. The dispute, then, is almost never whether the FM is valid. It is whether the allocation is fair.
In a real cracker outage the question is never 'is force majeure valid?' — it's 'why did my allocation come in at 50% when the spot market is still seeing the producer's resin?'
Without contract language, allocation is opaque and the buyer has no leverage to police it. Producers under allocation face obvious temptation: serve the highest-margin or most strategic accounts, cut the rest, and quietly keep some volume flowing to spot at elevated prices. Three contract terms close that gap:
- Pro-rata, non-discriminatory basis. Require allocation across all customers in proportion to contract volumes, with contract (long-term) buyers ranked ahead of spot and short-term purchasers — so the producer cannot prioritise a sister company or a new high-price account.
- Transparency right. A clause entitling you to written confirmation of the allocation percentage applied and the basis used. You cannot verify fairness you cannot see.
- No spot-sales-above-allocation carve-out. Bar the producer from selling uncommitted volume on spot while contract customers are on reduced allocation — the clearest tell of an opportunistic declaration.
The most common reason an FM defence fails is not the event — it is the notice. Nearly every clause conditions the defence on prompt, proper written notice, and the requirements are strict. Miss them and a perfectly valid event can be ruled out. A typical resin FM notice provision requires the declaring party to give written notice within a fixed window — often somewhere in the 3-to-15-day range from the event — stating the cause, the affected volumes, and an estimated duration, with an ongoing duty to update and to mitigate.
| Provision | What to require | Buyer's risk if loose |
|---|---|---|
| Timing | Notice within a defined number of days of the event | Stale notice may forfeit the FM defence entirely |
| Form | Written, to a named contact / address | Verbal or misdirected notice disputed later |
| Content | Cause, affected volume, estimated duration | Vague notice hides opportunistic diversion |
| Update duty | Periodic updates while event continues | No visibility to plan replacement supply |
| Mitigation | Reasonable efforts to resume / source substitute | Producer sits on FM instead of fixing it |
| End cap | Right to terminate if event exceeds 30/60/90 days | Indefinite limbo on a non-delivering contract |
The duration cap deserves special attention. An FM clause with no end point can leave a buyer bound to a contract that supplies nothing for months, unable to terminate and replace it cleanly. Insist on a termination trigger: if the event continues beyond a stated period — 30, 60, or 90 days are common — either party may cancel the affected volumes without liability. Note 'either party': FM should be a two-way right. A clause that lets only the seller declare while binding the buyer to take-or-pay is one-sided, and it should be balanced against your own payment and take-or-pay obligations so an outage does not leave you paying for tonnes you never received.
Clause drafting is the floor, not the ceiling. The buyers who weather outages best treat FM as one layer in a broader continuity plan, because even a perfectly drafted clause only allocates loss — it does not put resin on your line. The structural protections matter more than the legal ones.
- Diversify origin and producer. Split the contract book across regions and suppliers so a single Gulf hurricane or a single cracker fire cannot take out your whole programme. Concentration is the real exposure.
- Hold safety stock sized to lead time. Inventory buys the weeks you need to stand up alternate supply when allocation hits. Match the buffer to your replenishment lead time, not a generic rule of thumb.
- Pre-qualify backup suppliers. Approving an alternate grade and producer after an FM is declared is too late; do the COA review and trial runs in advance so you can switch quickly.
- Write a tight, symmetrical clause. Defined events, strict notice, allocation transparency, and a duration cap with mutual termination — every term above.
- Document mitigation in real time. Log every replacement purchase and incremental cost during an event; if the FM is later found invalid, that record is your damages claim.
Force majeure is ultimately a test of how well your contract was written before anyone needed it. The valid-event question gets the headlines, but the money is decided by the quiet clauses — allocation basis, notice timing, the duration cap — and by whether you diversified your supply before the cracker tripped. Read the clause at signing the way you'll read it during an outage, and build the redundancy that makes a declaration an inconvenience rather than a crisis. When the desk structures a contract, we treat FM and allocation as core commercial terms, not boilerplate — if you want a supply book stress-tested against the next outage, talk to us.
Frequently asked
Questions on the desk
Does a cracker outage automatically count as force majeure?
Not automatically — it depends on the cause and the clause wording. An unplanned shutdown from a fire, mechanical failure, or feedstock interruption usually qualifies because it is unforeseeable and outside the producer's control. A scheduled turnaround does not, because it is planned and foreseeable, which is why turnaround maintenance is normally handled through ordinary supply scheduling rather than an FM declaration.
Can a seller declare force majeure just because prices have moved against them?
No. Pure economic hardship — a spike in naphtha or ethane feedstock costs, an unfavourable currency move, or a more profitable export market opening up — is almost universally excluded from FM unless the contract has an explicit hardship or price-renegotiation clause. FM excuses performance made impossible by an external event, not performance that has merely become unprofitable. A producer diverting tonnes to a higher-priced region is a commercial choice, not a qualifying event.
What is allocation and how do I know my share is fair?
Allocation is the pro-rata reduction a producer applies across its customer book when an FM event cuts available volume — for example, supplying 60% of every customer's contract quantity. Fairness is hard to police without contract language, so insist on a clause requiring allocation on a non-discriminatory basis pro-rata to contract volumes, and the right to request written confirmation of the allocation percentage applied. Spot and short-term buyers are typically cut first; long-term contract holders should rank ahead of them.
How long can a force majeure event last before I can walk away?
That is set by the clause, not by law. A well-drafted FM provision caps the event: if the disruption continues beyond a stated period — commonly 30, 60, or 90 days — either party may terminate the affected volumes without penalty. Without that cap a buyer can be left indefinitely committed to a contract that delivers nothing, so the termination trigger is one of the most important terms to negotiate.
What should I do the moment a supplier declares force majeure?
Acknowledge the notice in writing, log the declared cause and estimated duration, and check whether the notice meets the clause's timing and content requirements — a defective notice may not be valid. Then move immediately to mitigation: activate alternate suppliers, draw on safety stock, and document every replacement cost, because if the FM is later found invalid those costs support a claim. Do not release the supplier from the contract or agree to revised terms until you have assessed your alternatives.
General market commentary from the OmniaStrata desk, provided for information only. It is not legal, financial, tax, or trading advice, and it is not an offer or a commitment to any terms. Figures such as price ranges, spreads, financing costs, and credit periods are illustrative market context, not OmniaStrata's rates or terms. Actual contract terms — including price, payment instrument, credit, insurance, and Incoterms — are agreed in writing on a per-transaction basis and at OmniaStrata's discretion. Market conditions change; figures reflect the publication date.