Eight questions every operator should ask before signing a manufacturing contract

Why most diligence happens after the contract is signed

The economics of a manufacturing search push diligence to the end of the process. A founder talks to four or five facilities, picks the one whose pricing and lead time look workable, and then hands the contract to a lawyer for a final read. The lawyer cleans up indemnification language, redlines the warranty section, and the contract is signed. Quality diligence — what the facility actually does, who actually owns it, how a problem is actually handled — is treated as something that happens later, during the relationship.

The cost of that sequence shows up six to eighteen months in. An out-of-spec batch arrives at the same moment a marketing launch is committed. A regulatory inspection finds a deficiency the operator never knew about. A raw material substitution happens upstream and the finished product fails an in-house identity check. In each case the operator is now a creditor negotiating from a weaker position than they had when the contract was a draft. The eight questions below cost less to ask in the diligence phase than they do to litigate.

Question 1: Who actually owns the facility?

Contract manufacturers are often layered: a sales-facing brand, a holding company, a real-estate entity that owns the building, and an operating company that holds the GMP registration. The entity on your contract is not necessarily the entity that would be liable if a batch caused harm — and it is not necessarily the entity that would survive a sale of the business.

Ask for the corporate structure in writing. Ask which entity holds the registration, which entity employs the quality unit, which entity owns the equipment, and which entity holds the insurance policy. If three of those four are different companies, ask why. The answer is usually defensible — a tax structure, an investor entity, a real-estate carve-out — but the structure determines who you can actually reach when something goes wrong.

Question 2: When was the last regulatory inspection, and what was the outcome?

Every regulated manufacturing facility has an inspection history. Operators rarely ask for it because they assume the facility wouldn't volunteer it; in our experience, well-run facilities are happy to share. The signal is in the cadence and the closeout, not in whether observations existed. A facility that has never been inspected is a different risk than a facility inspected three times in five years with all observations closed in writing.

Ask for the date of the most recent inspection, the inspecting authority, the number of observations issued, and the closeout status of each. Ask whether any observation was reissued at a follow-up inspection. Ask whether any inspection in the last ten years resulted in a warning letter or import alert. A facility that resists this conversation is telling you something about how it will respond when your operator's question is the inconvenient one.

Question 3: What's the single-source vs multi-source ratio in their inputs?

The facility's supply chain is part of your supply chain even though it doesn't appear on your contract. If a critical raw material has a single qualified supplier, then a fire, a regulatory action, or a price renegotiation at that upstream supplier becomes your problem on a delay your contract may not allow for.

Ask, for the inputs that go into your finished product: how many qualified suppliers exist, how many are actively used, and what the qualification cycle looks like to onboard a new one. The answer tells you what your real lead time looks like when something upstream goes sideways. Multi-source on the high-risk inputs is a feature; single-source on a high-risk input is a risk you are absorbing without a price discount.

Question 4: How are out-of-spec batches handled?

Every facility produces out-of-spec material. The question is not whether it happens; the question is what happens next. A good facility has a written investigation procedure, a defined decision-tree for rework versus rejection, and a closeout record that ties root cause to corrective action. A weaker facility treats out-of-spec as a commercial inconvenience to be negotiated.

Ask for the written out-of-spec procedure. Ask the rate at which out-of-spec material is reworked versus rejected over the last twelve months. Ask whether the facility would notify you if your batch went out-of-spec on a parameter that was later released by deviation. The honest answer here is the foundation of every other quality conversation.

Question 5: What's the change-control process for raw materials?

Raw material substitution is the most common silent change in contract manufacturing. A supplier discontinues a grade, the facility qualifies a replacement, and the finished product specification is technically still met — but the characteristic the brand was paying for has shifted. If the quality agreement is silent on change notification, the operator finds out months later, usually from a customer complaint.

Ask for the written change-control procedure. Ask which category of changes the facility commits to notify you about in advance, which it logs but does not notify you about, and which it considers internal. Get the answer in writing into the quality agreement, not the master service agreement. The quality agreement is where this language lives in any defensible structure; if it's only in the MSA, your counterparty's quality unit may not even know about it.

Question 6: Who else does this facility produce for?

You will rarely get a customer list — and you should not ask for one in detail; competitors' identities are confidential commitments. What you should ask is the composition of the book: how many active customers, how concentrated the top three are by volume, and whether any customer represents more than thirty percent of capacity. That last number tells you what happens to your lead time when their large customer's launch hits the same week as yours.

Ask the same question about the facility's product mix. A facility producing twelve product types in the same suite has different cross-contamination controls than a facility dedicated to one. Neither is wrong; both are answers you need before signing.

Questions 7 & 8: Insurance and termination clauses

The last two questions are contractual rather than operational, but they are the ones that determine your recovery if a problem actually occurs. Ask for a current certificate of insurance — product liability and general liability, primary and excess — naming the facility's operating entity. Compare the limits to the value of the inventory you will have in their custody at any given time. Many small contract facilities carry limits sized for their own revenue, not for a customer launch.

Read the termination clause line by line. Ask three concrete questions: how much notice is required to terminate without cause, what happens to your in-process inventory if the facility terminates you, and what happens to your specifications and master batch records if you terminate them. The right answers are mutual notice periods, a buyout of in-process at cost, and your IP returned in writing. The wrong answers are clauses you discover you signed only after you're trying to leave.

What this means for operators

• Ask the questions before the contract, not after. Diligence in the negotiation phase is leverage; diligence in the relationship phase is forensics.
• Get the answers in writing. A verbal assurance from a sales contact does not bind a quality unit. The quality agreement is where these answers belong.
• Treat resistance as a signal. Facilities that decline to answer routine diligence questions are telling you how the relationship will feel under stress.
• Right-size the diligence to the commitment. A six-month trial run does not need the same depth as a three-year exclusive. Match the depth to the dollars at risk.
• If you don't have the bandwidth to ask them yourself, have someone independent ask. The cost of an outside diligence pass is small compared to the cost of finding the answers later.