AgricultureBronze report
Published April 2026Insight Research21 min read2026 Edition8 sources, 1 primary-gradeStandard source depth

Thai Cannabis: Decriminalisation Rollback and the Medical-Tier Future

Royal Gazette reclassified cannabis flower as 'controlled herb' on 26 June 2025 β€” medical-only access via licensed practitioner prescription. 7,297 of 18,433 dispensaries shut after license-renewal failures; only 1,339 (15.5%) renewed under stricter GACP rules. Cannabis and Hemp Act bill stalled as of October 2025; ministerial-order regime continues.

Key takeaways

  1. 1

    Royal Gazette reclassified cannabis flower as 'controlled herb' on 26 June 2025 β€” effective immediately, no interim provision protecting dispensaries.

  2. 2

    Medical-only access: prescriptions only via licensed doctors, traditional Thai medicine practitioners, dentists. Consumption within licensed premises under medical supervision.

  3. 3

    Bans on online sales, vending machine distribution, and sales near schools, temples, or sensitive areas.

  4. 4

    Dispensary attrition: 7,297 of 18,433 dispensaries shut after license renewal failures; only 1,339 () successfully renewed.

  5. 5

    GACP standards required for cultivators, importers, sellers; monthly transaction records to Department of Thai Traditional and Alternative Medicine.

  6. 6

    Cannabis and Hemp Act bill stalled (October 2025); ministerial-order regime continues; December 2025 regulations consolidated framework.

Questions this report answers

What changed on 26 June 2025? Per Legal 500 and CNN: the Royal Gazette officially reclassified cannabis flower as a 'controlled herb' β€” effectively ending the period of liberal access introduced under June 2022 decriminalisation. The reclassification was effective immediately without interim provisions to protect dispensaries. Cannabis can now only be sold for medical purposes to patients with a valid prescription from a licensed professional (doctors, traditional Thai medicine practitioners, dentists) per Cannabis Science and Technology. Consumption is restricted to licensed premises under medical supervision.[, , ]

What's the new dispensary regulatory regime? Per Formichella and Sritawat and AIM Bangkok: dispensaries must employ certified medical or traditional practitioners to oversee cannabis usage. Online sales, vending machine distribution, and sales near schools, temples, or other sensitive areas are banned. Businesses engaged in cultivation, importation, or sale must comply with Good Agricultural and Collection Practices (GACP) standards and submit monthly transaction records using official forms to the Department of Thai Traditional and Alternative Medicine.[, ]

What was the economic impact on dispensaries? Per Thailand With Monchai's September 2025 update: 7,297 of 18,433 dispensaries shut down after failing to renew licenses; only 1,339 ( of the original cohort) successfully renewed under stricter rules. The rapid attrition reflects both compliance-cost reality (medical-practitioner staffing, GACP, monthly reporting) and demand-shock from the recreational-tourist market disappearing. Per Al Jazeera: businesses are scrambling to survive; many pivoted to compliance-tier or exited entirely.[, ]

What's the legislative pipeline? Per Terms.Law's January 2026 update and AIM Bangkok: the comprehensive Cannabis and Hemp Act bill remains stalled as of October 2025. Regulation continues through ministerial orders; December 2025 regulations consolidated the medical-only framework. The structural risk is regulatory arbitrage and inconsistency until the comprehensive Act passes. Watch 2026 legislative pipeline progress as the structural-clarity signal.[, ]

Legal 500, CNN, Formichella, AIM Bangkok, Al Jazeera, Cannabis Science and Tech, Monchai, Terms.Law
Data as of: 2025-2026

Executive summary

Thailand fully reversed its 2022 cannabis decriminalisation in 2025. The Royal Gazette reclassified cannabis flower as a 'controlled herb' on 26 June 2025 with immediate effect; cannabis is now restricted to medical-only access via licensed practitioner prescription. The economic impact has been severe β€” 7,297 of 18,433 dispensaries shut after failing to renew licenses; only 1,339 () successfully renewed under stricter rules per Thailand With Monchai's September 2025 update.[, ]

The new regulatory regime requires GACP standards for cultivators, importers, and sellers; monthly transaction records to Department of Thai Traditional and Alternative Medicine; medical-practitioner oversight at dispensaries; and bans on online, vending machine, and sensitive-location sales. The comprehensive Cannabis and Hemp Act bill remains stalled as of October 2025 per Terms.Law; ministerial-order regime continues with December 2025 regulations consolidating the framework.[, ]

For investors and operators: the recreational-tourism cannabis market is closed. The surviving 1,339 dispensary cohort represents a structurally smaller, medical-tier opportunity. Watch Cannabis and Hemp Act legislative-passage timing, surviving-dispensary financial-sustainability metrics, and medical-tier patient-enrollment growth as 2026 leading indicators. For Thai-tourism operators: the cannabis-tourism subset of overall tourism arrivals is materially smaller through 2026.[, ]

Legal 500, Monchai, Formichella, Terms.Law, AIM Bangkok, Al Jazeera
Data as of: 2025-2026

Cannabis dispensary attrition and regulatory framework

Decriminalisation date

Value

June 2022

Notes

Cannabis decriminalised; recreational and medical tiers permitted.

Reclassification date

Value

26 June 2025

Notes

Royal Gazette; cannabis flower = 'controlled herb'.

Dispensaries pre-rollback

Value

18,433

Notes

Approximate count per Monchai.

Dispensaries closed (renewal failure)

Value

7,297

Notes

Failed to meet stricter rules.

Dispensaries successfully renewed

Value

1,339

Notes

Approximately 15.5% of original cohort.

Required oversight at licensed premises

Value

Medical / traditional practitioner

Notes

Doctor, traditional Thai medicine, dentist.

GACP standards required

Value

Yes

Notes

Cultivators, importers, sellers.

Cannabis and Hemp Act status

Value

Stalled (Oct 2025)

Notes

Comprehensive legislation pending; ministerial-order regime continues.

Legal 500, Monchai, Formichella, Terms.Law
Data as of: 2022-2026

Analyst framing

Why this report matters

Thailand fully reversed June 2022 cannabis decriminalisation. June 26 2025 Royal Gazette restricted cannabis to medical-only access via licensed practitioner prescription. 7,297 of 18,433 dispensaries shut; only 1,339 (15.5%) renewed under GACP-tier compliance. Cannabis and Hemp Act bill stalled. For investors: recreational market closed; medical-tier opportunity structurally smaller. For tourism: cannabis-tourism subset materially diminished through 2026.

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Policy chronology, regional-cluster attrition analysis, surviving dispensary cohort sizing, Cannabis and Hemp Act bill detail, GACP-cultivator economics, tourism-spend impact, scenarios to 2028, recommended actions for surviving operators, cultivators, and investors.
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Thai Cannabis: Decriminalisation Rollback and the Medical-Tier Future Β· Insight