Due diligence on a plastics extrusion business

Once a plastics extrusion business is under a letter of intent, diligence is where a buyer finds out whether the plant behind the listing matches the one actually being sold. Beyond the standard review of financial statements, three checks carry more weight than usual here: whether decades of resin and regrind handling have left an environmental exposure, whether the tooling and product catalogue genuinely belong to the business as described, and whether the customer supply agreements actually contain the protections the seller has claimed they do. Each has a specific way to verify it, and each finding means something different for how the buyer should proceed from that point.

Commission or review an environmental site assessment on its own merits

Given how long extrusion and regrind operations commonly run on one site, a Phase I environmental site assessment — and a Phase II where the Phase I flags a concern — is standard practice rather than an exceptional precaution reserved for troubled sites. In Ontario, confirm Environmental Compliance Approval status and any record of site condition directly against government records rather than the seller’s summary; other provinces run their own environmental permitting regimes, so confirm the equivalent locally rather than assuming Ontario’s framework applies elsewhere. Where the seller already holds a Phase I report, confirm who prepared it and when, since an outdated or seller-commissioned report without independent verification carries less weight than one a buyer’s own consultant has reviewed.

Confirm die tooling ownership against records, not the seller’s description

Request a tooling schedule that states, piece by piece, whether each die is company-owned or customer-owned, and cross-check it against actual purchase and customer records rather than accepting a verbal assurance about how the tooling has always been treated. A business presented as owning tooling it does not actually hold is a materially smaller acquisition than the one described in the listing, and the difference matters directly to price. Where records are incomplete, a physical inventory reconciled against the schedule, die by die, is worth the time it takes given how central the tooling library is to what is actually being purchased.

Read the resin supply agreements for what they actually say

Pull each material supply agreement and confirm whether pass-through pricing language genuinely exists in the text, and review any assignment or change-of-control terms line by line rather than relying on a summary someone else has prepared. A seller who describes agreements as protective without producing the language that says so has given a buyer half the picture, and that gap is exactly where post-closing margin surprises tend to originate once resin prices start moving.

Check product liability exposure for regulated end uses

Products destined for potable water, food-contact or medical use may carry customer-imposed regulatory sign-offs tied to a specific formulation and line, and a plant that has shipped into these applications carries product liability exposure for material already in the market that does not disappear with a change of ownership. Reviewing claims history and confirming how liability is allocated in the purchase agreement is a standard, not an unusual, part of diligence in this sub-sector, and any formulation-specific approval should be verified directly with the customer or certifying body rather than taken on the seller’s word alone.

Reconcile output and yield data against reported revenue

Extrusion earns on material yield as much as on line uptime, so comparing reported production volumes and scrap or regrind rates against reported revenue is a useful cross-check that a straightforward review of financial statements alone will not catch. A yield rate that looks unusually favourable relative to the equipment and product mix described is worth understanding fully before relying on the earnings it appears to support, since an unexplained improvement in yield right before a sale process is exactly the kind of pattern diligence exists to catch.

Confirm there are no undisclosed liens against the lines or tooling being purchased

A registered security interest search against the extrusion lines and die tooling being acquired is a routine, low-cost step that protects a buyer from discovering after closing that a piece of equipment central to the business is encumbered. Skipping this check to save a few days is rarely worth the risk given how straightforward and inexpensive it is to run properly before funds are advanced, and any registration found should be resolved as a condition of closing rather than left to be sorted out afterward.

Know what a finding actually means before reacting to it

A Phase II assessment finding contamination tied to decades of resin and regrind handling is a serious issue that affects both structure and price, since remediation and liability allocation need to be worked out carefully before closing can proceed. A single end-market customer signalling a shift to an alternate material is primarily a pricing and diversification problem, not a legal one requiring the same response. Sorting findings by what they actually threaten — commercial, financial or legal — is what makes diligence useful rather than merely thorough for its own sake.