Why does exhibition follow-up decay so quickly?

Because the information that makes a contact useful lives partly in your head, and it fades faster than the business card does. Which of two similar suppliers seemed to know their own process, what was promised, what was evaded, what you decided on the spot to pursue: none of that is written on the card. Within a fortnight the conversations blur together, and what remains is a stack of names without the judgements that gave them meaning. The remedy is not discipline in the abstract but a short, dated note made at the stand and processed while it is still legible to you.

What is the legal status of a sample?

It varies by jurisdiction and by material, and a small quantity is not automatically exempt from anything. Import rules, registration or notification obligations, transport classification and documentation requirements can all apply to a sample, and a sample carried personally in luggage is a separate and usually worse case than one shipped properly. Ask the supplier to send the material through a declared channel with the documentation the destination requires, and check the position for your own market rather than relying on a general assurance that samples are fine.

Does a confidentiality agreement have to be in place before a trial?

If the trial requires you to disclose anything about your formulation, process or customers, then yes, and it should be signed by parties with the authority to bind their companies. An agreement signed on a stand by an unidentified person protects very little. Note also what such an agreement does not do: it does not create an obligation to supply, it does not fix a price, and it does not by itself protect an idea that the other party could have reached independently. It protects disclosed information under defined terms, which is valuable and narrower than most people assume.

How should a sample be tested so the result means something?

Insist that it arrives with a lot number and the certificate of analysis for that lot. Verify identity first, then confirm the specification entries you actually rely on, then run the material in the process it is intended for, against your current material as a control in the same session. A result without a control tells you how the sample behaved on one day with one operator. The comparison is what supports a decision, and it is also what a colleague will ask for when the recommendation reaches them.

What should be done with suppliers you decide not to pursue?

Tell them, briefly and without elaborate explanation, and record why in your own file. Closing the loop costs a few minutes, preserves a relationship that may matter when your requirement changes, and stops a stream of follow-up messages that will otherwise continue for a year. The internal record is the more valuable half: a dated note of the reason prevents the same supplier being evaluated from zero at the next event by a colleague who was not there.

After the trade fair: samples, contacts and next steps

Company news · Eapearl Chemical · 15 December 2025

Exhibitions do not produce supply relationships. They produce raw material for them, with a short shelf life, and the work that converts one into the other happens back at the office in the weeks that follow.

The first week decides what survives

The pile on the desk after a trade fair is not the output of the trip. The output is the set of judgements you formed while standing in front of people, and those judgements are stored nowhere durable. A brochure records what a company wishes to say about itself. It does not record that the technical manager answered a process question fluently, or that a commercial contact deflected the same question twice.

So the first task is not to answer emails but to process notes. Go through each conversation while it can still be distinguished from the others, and reduce it to a few fields: entity name as written, person and role, material and grade discussed, what was promised and by when, what was left unanswered, and a blunt verdict on whether this is worth time. That last field is the one that cannot be reconstructed later and the one that saves the most effort afterwards.

Sorting contacts by what they can actually do

Not every promising conversation deserves the same next step, and treating them identically is how follow-up becomes a chore that nobody completes.

Direct fit — a material you buy now, from a party that appears able to supply it. These get a written enquiry with your specification attached, promptly, while the conversation is still remembered on their side too.
Future fit — capability relevant to something on your development roadmap rather than to current consumption. Record and diarise; do not open a qualification that has no sponsor.
Information only — useful market context, no transaction in sight. File the note, do not start correspondence.
Not a fit — closed explicitly, with the reason recorded.

The second category is where most value is quietly lost. A contact that is right for a project starting next year will be forgotten by then unless it is written somewhere a colleague can find it. That is an argument for a shared record rather than a personal inbox, and it is the same argument as for any other piece of institutional memory.

Samples are a regulated shipment, not a souvenir

Material handed over at a stand is the least useful form of sample. It usually has no lot identity, an unknown storage history and no certificate, which means any laboratory result you obtain from it describes that container and nothing else. Carrying it home personally adds a transport question you did not plan for and, in some cases, a customs one.

Ask instead for a sample drawn from a named lot, sent through a declared channel, with the certificate of analysis for that lot travelling with it. Check the import position for your own market rather than assuming that small quantities are outside the rules: obligations around registration, notification, classification and documentation are not switched off by quantity in every jurisdiction, and the burden for an import normally sits with the importer, which is you. Agree in advance who pays for freight and duties, because an unexpected invoice is a poor start to a relationship.

When it arrives, record it like any other incoming material: date, quantity, lot, packaging, condition and storage location. A sample that sits in an unlabelled bottle on a bench for months is not evidence of anything, and it will eventually be tested by someone who has no idea how old it is.

Confidentiality: what an agreement does and does not cover

Trials that require you to reveal a formulation, a process detail or a customer requirement need a confidentiality agreement in place first, signed by people who can bind their companies. A signature collected on a stand from an unidentified person offers thin protection, and the moment to fix that is before the disclosure rather than after it.

Be equally clear about the limits. Such an agreement does not oblige either side to supply or to buy; it does not fix price, volume or specification; and it does not protect information that the other party already had or could reach independently. It governs defined information for a defined period under defined terms. Read the definition of confidential information and the duration, since those two clauses carry most of the effect, and make sure the agreement covers disclosure in both directions if both sides will be revealing anything.

Turning a conversation into a document

The transition from exhibition to procurement happens when a verbal impression becomes a written enquiry. That document should contain the material identity in full, the grade concept, the entries that decide acceptance, the packaging, the destination market, the volume and pattern, and the documentation set you expect. Sending the same document to every candidate makes the replies comparable, which is the entire point.

Then compare like with like. A quotation that omits packaging, a quotation that assumes a different delivery term and a quotation that quietly proposes a lower grade are not three prices for one thing. Normalise them before any of them is shown to a decision-maker, because a price comparison presented without that work is worse than no comparison at all: it is a misleading one that looks authoritative.

The path a promising contact now enters

Verify the counterparty’s identity and role, and establish which entity would contract.
Obtain a lot-identified sample with its certificate through a declared channel.
Confirm identity and the decisive specification entries in your own laboratory.
Run a trial in the actual process, with current material as a control in the same session.
Review the documentation set against the requirements of the market of sale.
Agree specification, change notification and the handling of a rejected lot before the first commercial order.

Each step is capable of ending the evaluation, which is what makes the sequence worth following in order. A supplier whose documentation cannot support your destination market does not need a plant trial, and a material that fails identity does not need a plant trial either. The cost of qualification rises sharply at each stage, so the cheap steps belong first.

Closing the loop, including the noes

Tell the suppliers you are not pursuing, briefly. It costs little, it ends a correspondence that would otherwise run for months, and it preserves a contact that may become relevant when your requirement shifts. Record the reason internally with a date, so that the next colleague to meet the same company at the next event starts from what is already known rather than from zero.

Finally, judge the event itself on outputs rather than impressions: enquiries sent, samples received with lot identity, qualifications opened, and relationships that improved. Whether the material in question is a commodity such as ethanol, a formulation solvent such as propylene glycol ethyl ether, or a specialty grade bought on a trace panel, the follow-up discipline is identical and it is where the return on the trip is actually earned. Written enquiries, specifications and sample requests can be sent to us at any time through our contact page.