1. Start with the route, not the package
The Plant Standard and Certification System Development Division lists the fourth revision of its export-quality inspection and certification service manual as updated on 1 September 2026. A separate document effective 1 April 2026 sets criteria specifically for processed plant products taken to exhibitions abroad.
The file should therefore identify whether the goods are for display, tasting, promotional sampling or commercial export. Purpose, quantity and destination can change the document and inspection route.
2. An invitation proves the event, not product readiness
The criteria require a relevant official confirmation or invitation for each Health Certificate request. That document confirms the exhibition context; it does not demonstrate compliance of the product, lot, label, storage condition or test results.
The official criteria also say quality inspection should follow the destination country’s laws and requirements. Where those requirements are unknown, the Department of Agriculture’s specified criteria apply. A test scope should not be copied from a similar product or an earlier show without confirmation.
3. Trade-Show Export Evidence File: seven layers
This is an editorial information-control framework, not an official standard, prescribed test scope or Siam Diamond certification.
- Event Route — event, country, travel date, purpose, tasting status and the invitation used
- Product & Lot Identity — product name, code, formula, production lot, manufacture date, expiry and storage
- Destination Requirement Snapshot — authority, official rule or reply, review date and unresolved items
- Test & Sampling Plan — scope, sample quantity and representativeness, sampler, date and condition-preserving transport
- Laboratory Chain — recognised laboratory and scope, sample receipt, report and link back to the lot
- Certificate Decision — application, supporting records, reviewer, Hold/Approved status and certificate number only when issued
- Packing, Dispatch & Arrival — pack count, seals, transport, accompanying documents and destination receipt or release evidence
4. The test report must follow the travelling goods
The exhibition-specific criteria connect the Health Certificate application to a production lot and say that one test report may be used for one application. Where retesting is needed, key product identifiers must remain connected under the stated conditions.
A passing result should therefore stay linked to product name and code, production and expiry dates, label version and storage condition. A result detached from the identity of the goods dispatched is not release evidence for those packages.
5. Twenty working days is planning allowance, not a guarantee
The criteria advise submitting samples at least 20 working days before export so a failed result and retest do not exhaust the timeline. This is advice in the cited exhibition route—not a guaranteed service time or one rule for every product and destination.
Work backwards from dispatch and allow time for test-scope determination, laboratory capacity, document correction, retesting and certificate review. Check the Department of Agriculture’s current recognised-laboratory list and scope before booking tests.
6. Health Certificate is not a catch-all document name
The Agricultural Regulatory Division publishes separate phytosanitary-certificate manuals for plant consignments and fresh-durian routes, while the cited Health Certificate criteria address processed plant products for exhibitions. The two document families should not be treated as interchangeable or represented as covering every authority’s requirements.
This article does not determine which certificate a specific durian snack needs, set a test list, sample quantity, fee or approval time, or claim that Siam Diamond has a product, passing test or certificate under this route. Before dispatch, confirm the actual product route with the relevant Thai and destination authorities, organiser, carrier and laboratory.
