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Authorities Seize 22 Tonnes of Acetic Acid at Laem Chabang

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Pictures courtesy of Naewna

 

Authorities have seized 22,200 kilograms of acetic acid suspected of being destined for large-scale illicit drug production, following a joint inspection at Laem Chabang Port, Chon Buri, on 17 November 2025. The operation was led by Justice Minister Pol Lt Gen Rutthaphon Naowarat alongside senior officials from the Office of the Narcotics Control Board (ONCB), Customs Department, Industrial Works Department and Narcotics Suppression Bureau. Officials confirmed that the shipment, imported from Hong Kong, lacked the required import permit and registration and was being monitored under the “No Chemical No Drugs” initiative.

 

The ONCB launched the inspection after receiving intelligence from the Customs Department, which had been monitoring chemical imports with potential links to drug production. Coordination with the Industrial Works Department revealed that a company had imported 740 drums of acetic acid, each weighing 30 kilograms, without proper authorisation. The shipment was intercepted at Laem Chabang Port and held for further investigation into its intended use.


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Authorities explained that acetic acid plays a critical role as a reagent in producing precursor substances used in methamphetamine tablets, crystal methamphetamine (ice), and heroin. Based on chemical conversion estimates, the seized quantity could have enabled the production of approximately 27,750 kilograms of crystal meth, around 1.4 billion methamphetamine tablets, or roughly 74,000 kilograms of heroin. Officials stressed that the interception prevented significant volumes of illicit drugs from entering both Thai and international markets.

 

ONCB representatives noted that the incident highlights the risk posed by precursor chemicals if they escape regulatory control, given their global impact on trafficking routes and public safety. The operation demonstrated the importance of cross-agency cooperation, involving ONCB, Customs, the Industrial Works Department, and the Narcotics Suppression Bureau, under the Seaport Interdiction Task Force (SITF). Authorities stated that strict monitoring remains essential to safeguard Thailand and neighbouring regions from chemical diversion.


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Under Thai law, acetic acid is classified as a Type 3 hazardous substance requiring registration and an import licence under the Hazardous Substances Act 1992. It is also listed under a 2016 Ministry of Justice regulation governing chemical controls aimed at preventing the illegal manufacture of narcotics. While widely used in legitimate industries, including plastics, rubber, printing, dyes, food preservation and organic synthesis, acetic acid remains tightly regulated due to its dual-use potential.

 

Naewna reported that investigators will now examine the importing company’s documentation, compliance history and potential links to drug networks. Further legal proceedings will follow if violations of hazardous-substance or narcotics-related regulations are confirmed. Authorities say continued vigilance at international ports will remain a priority to prevent precursor chemicals from entering illicit supply chains.

 

 

Key Takeaways

 

• Officials seized 22,200 kg of acetic acid imported without permits and suspected for illicit drug production.

• The chemicals could have produced methamphetamine, crystal meth, or heroin in extremely large quantities.

• Multiple agencies are continuing investigations under Thailand’s strict chemical-control framework.

 

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image.png  Adapted  by  Asean  Now from Naewna 2025-11-19

 

 

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Great, good work.

Better than shaking down a poor Falang who imported a gas log fire from China years ago and a container of teak furniture bought over the years Indonesia.

Pay this amount under the table or we won't release your goods and we will store them and you have to pay storage fees.

If you've ever been to the Port and had to get something cleared thru customes, you'll know what I mean.

  • Popular Post

oh no ! The price of white vinegar is going to go up ! All the Thai who eat noodles at the food floors will be monitored for how much they dump into the bowl with the chillie powder and sugar !

2 hours ago, 0ffshore360 said:

oh no ! The price of white vinegar is going to go up ! All the Thai who eat noodles at the food floors will be monitored for how much they dump into the bowl with the chillie powder and sugar !

No. This was industrial grade and not suitable for human consumption.

9 hours ago, Patong2021 said:

No. This was industrial grade and not suitable for human consumption.

You mean not diluted to consumption level ?

Even then is not appealing but makes quite good antifungal wipe down in my shower room .

20 hours ago, Patong2021 said:

No. This was industrial grade and not suitable for human consumption.

Coming to a chippy near you! 😁

17 hours ago, jacko45k said:

Coming to a chippy near you! 😁

 

Sadly this is  accurate. If the  experience in the UK and Ireland is an indication, it is depressing too.  Most UK shops no longer use malt vinegar and instead offer a "non-brewed condiment" mix of water, acetic acid, flavourings and  caramel colour.

5 hours ago, Patong2021 said:

 

Sadly this is  accurate. If the  experience in the UK and Ireland is an indication, it is depressing too.  Most UK shops no longer use malt vinegar and instead offer a "non-brewed condiment" mix of water, acetic acid, flavourings and  caramel colour.

A travesty!

15 hours ago, Patong2021 said:

 

Sadly this is  accurate. If the  experience in the UK and Ireland is an indication, it is depressing too.  Most UK shops no longer use malt vinegar and instead offer a "non-brewed condiment" mix of water, acetic acid, flavourings and  caramel colour.

 

What the UK does to otherwise edible food is the real crime.  Probably the reason that Gordon Ramsey is always angry. 

Bust of the century.  Well, here's list of products that use acedic acid in the manufacturing process - I could probably come up with 100+.

  • Vinyl acetate monomer (VAM) – A precursor for various polymers.
  • Polyvinyl acetate (PVAc) – Used in adhesives and emulsions.
  • Polyvinyl alcohol (PVOH) – Derived from PVAc hydrolysis, applied in films and fibers.
  • Ethylene-vinyl acetate (EVA) copolymers – Employed in foams and hot-melt adhesives.
  • Acetic anhydride – An acetylating agent for further derivatives.
  • Cellulose acetate – Utilized in fibers, films, and plastics.
  • Acetate fibers (e.g., rayon acetate) – For textiles and cigarette filters.
  • Photographic films – Historically based on cellulose acetate.
  • Purified terephthalic acid (PTA) – As a solvent in its oxidation process.
  • Polyethylene terephthalate (PET) – For bottles and synthetic fibers.
  • Ethyl acetate – A common solvent for inks and coatings.
  • Butyl acetate – Used in lacquers and paints.
  • Propyl acetate – Applied as a solvent in printing inks.
  • Isobutyl acetate – Employed in coatings and adhesives.
  • Propylene glycol monomethyl ether acetate (PGMEA) – A photoresist solvent in electronics.
  • Ethylene glycol monoethyl ether acetate (EEA) – For industrial coatings.
  • Ethylene glycol monobutyl ether acetate (EBA) – In paints and cleaners.
  • Monochloroacetic acid (MCA) – An intermediate for carboxymethyl cellulose.
  • Aspirin (acetylsalicylic acid) – Produced via acetylation with acetic anhydride.
  • Vitamins (e.g., vitamin C intermediates) – In certain pharmaceutical syntheses.
  • Antibiotics – As a reagent in production processes.
  • Paints and coatings – Through VAM-derived polymers and acetate esters.
  • Adhesives (e.g., wood glue) – Primarily from polyvinyl acetate.
  • Inks and dyes – Including solvents like ethyl acetate and historical indigo dye intermediates.
  • Perfumes and fragrances – Via acetate esters as fragrance components.

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