Thai GACP vs EU-GACP vs CUMCS: Which Standard Does Your Buyer Actually Require?

One of the most common and costly misunderstandings in the Thai medical cannabis export market is the assumption that all GACP certifications are equivalent. They are not. Thai GACP, EU-GACP, and CUMCS are distinct frameworks with different scopes, different auditing bodies, and different levels of recognition in destination markets. Shipping to a buyer who requires one standard while holding certification under another can result in rejected shipments, voided contracts, and serious regulatory complications on both sides of the transaction.

Thai GACP

Thai GACP is the standard certified exclusively by the DTAM under the Ministry of Public Health. Under the June 2025 controlled herb notification, DTAM GACP certification is now a legal requirement for any cultivation operation supplying cannabis flower for sale or export in Thailand. The certification covers soil and water quality, input and pesticide controls, worker hygiene and training, seed-to-sale documentation and traceability, harvest and post-harvest handling, and regular product testing. Certificates are valid for 1 to 3 years with annual surveillance inspections. The process takes 90 to 180 days depending on the starting point of the facility.

Thai GACP is necessary for domestic legal compliance and draws on WHO GACP guidelines. However, it is not formally recognized as equivalent to EU-GACP by European competent authorities. A Thai GACP certificate alone will not satisfy the requirements of a German, Dutch, or Polish importer operating under BfArM or IG-IMB procurement guidelines. Thai GACP is the foundation, not the finish line for export.

EU-GACP

EU-GACP is not a certificate issued by a single authority. It refers to compliance with the EMA's guideline on good agricultural and collection practices for herbal starting materials (EMA/HMPC/246816/2005 Rev. 1), which the EMA describes as intended "to provide guidance to ensure appropriate and consistent quality of herbal substances" and states that GACP is "the first step in quality assurance, on which safety and efficacy of herbal medicines directly depend." This is the benchmark for cannabis flower and biomass entering the European market for medicinal use. Germany, the Netherlands, Poland, and most other active EU import markets require suppliers to demonstrate EU-GACP compliance as a baseline condition before any commercial discussion can progress.

For a well-structured Thai operation with solid Thai GACP foundations, EU-GACP readiness is typically achievable in 2 to 3 months of focused work. The gap areas generally involve documentation granularity, environmental monitoring records, batch segregation protocols, and traceability system depth. European buyers still regard an independent internationally recognized third-party audit as stronger evidence of compliance than the DTAM certificate alone, even where the underlying practices are broadly equivalent.

CUMCS (Control Union Medical Cannabis Standard)

CUMCS-GAP is, in Control Union's own words, "globally the leading certification standard for medical cannabis certification." It is developed and administered by Control Union, a Dutch inspection and certification organization with over a century of experience operating across more than 80 countries. It is fully compliant with both the WHO and EMA GACP guidelines, and certified organizations receive both a CUMCS-GAP certificate and a formal GACP compliance certificate covering both WHO and EMA standards.

For Thai cultivators, CUMCS is commercially valuable precisely because of the markets it formally unlocks:

• Israel: CUMCS-GAP has been benchmarked against the Israeli Medical Cannabis Standard (IMC-GAP) for full equivalency and is formally recognized and accepted by the Israeli Medical Cannabis Agency (IMCA), Ministry of Health, for all imports of medical cannabis into Israel. This is a direct, confirmed approval, not a general industry claim.
• European Union: CUMCS provides an independent third-party certificate confirming compliance with WHO and EMA GACP guidelines, which is the standard EU buyers require. Germany, the Netherlands, the UK, and other active import markets recognize CUMCS as credible export-readiness proof.
• Australia: TGA-aligned buyers recognize CUMCS as independent verification of GACP compliance, supporting the broader quality documentation package required for Australian import clearance.
• Other international markets: Any market requiring WHO or EMA GACP-compliant cultivation as a sourcing condition will recognize CUMCS, because the certificate directly references those standards.

For Thai cultivators targeting multiple international markets simultaneously, CUMCS is one of the most commercially efficient single certifications available. A single audit produces recognition across Israel, the EU, the UK, Australia, and any other market requiring WHO or EMA GACP alignment.

Comparison at a Glance

Thai GACP is issued by a government body (DTAM), satisfies the domestic legal minimum, and is not independently recognized by EU or Israeli competent authorities as equivalent to their standards. EU-GACP refers to compliance with EMA guidelines and is what European buyers require, but it is not issued as a single certificate by one authority. CUMCS is issued by an independent third-party certifier (Control Union), is fully aligned with EU and WHO GACP standards, and is formally accepted by Israel's IMCA as well as recognized by European and Australian buyers as credible independent proof of compliance.

For most Thai cultivators targeting export markets, the practical path is: achieve Thai GACP first (required domestically), then pursue CUMCS or an equivalent internationally recognized third-party audit to satisfy overseas buyer requirements across Israel, Europe, Australia, and beyond.

Choosing the Right Standard for Your Target Market

The correct answer is determined entirely by your buyer's jurisdiction and their specific procurement requirements. For Israel: CUMCS is formally accepted by IMCA for all imports. For European markets: EU-GACP compliance demonstrated through a recognized third-party audit such as CUMCS is required. For the Australian market: TGA import conditions apply and buyers typically require GMP-compliant manufacturing for finished products in addition to GACP-compliant cultivation. For domestic Thailand or markets without formal GACP import requirements: Thai GACP satisfies your legal obligation.

DeeMED Consulting has supported EU-GACP readiness programs for Thai cultivators and works with a BfArM and MHRA registered Qualified Person based in Thailand. If you are unsure which standard applies to your specific target buyer and product type, that clarification is worth getting right before investing in the certification process.