IP Enforcement Against an Unauthorized Thai Manufacturer or Distributor

A dispute with an unauthorized Thai manufacturer or distributor often begins with a troubling discovery: products are being made beyond approved quantities, a former partner still presents itself as an official distributor, or a factory appears to be using a brand’s formula or packaging for other customers.

The response depends on what the other party is actually doing and what rights the brand owner holds. An unauthorized sale of genuine goods, an unapproved production run, misuse of a registered trademark and disclosure of a confidential formula can involve different legal claims. The first task is to separate those facts before choosing an enforcement strategy.

What kind of dispute are you facing?

Situation	Questions to investigate
Factory production exceeds approved orders	Who owns the goods, components, packaging and relevant IP? What did the manufacturing agreement permit? Where did the additional units go?
Factory uses the brand or packaging for its own sales	Which Thai trademark or other rights exist? Was any use authorized, and has that authorization ended?
Former distributor continues to claim official status	What do the appointment, trademark license, termination notice and post-termination terms say? What is the distributor currently telling customers?
Distributor sells remaining genuine inventory	How was the stock acquired? What sell-off rights or restrictions apply? Is there separate misuse of branding, confidential information or contractual rights?
Manufacturer uses a formula, design or customer information elsewhere	Who developed and controls the information? Was it confidential, and what restrictions governed its use?

The same business relationship may involve more than one row. A factory may legitimately possess molds and product files for an approved order but use them outside the agreed scope. A distributor may own genuine stock while having no continuing authority to describe itself as the brand’s exclusive representative.

Establishing the rights and the limits of permission

Begin with the documents that created the relationship: manufacturing or distribution agreements, purchase orders, specifications, trademark or technology licenses, confidentiality agreements, amendments and correspondence.

Review the scope of permission, including products, territories, customers, production quantities, subcontracting, sales channels and duration. Check who owns artwork, formulas, molds, tooling, product registrations, domain names and accounts used to sell the goods. Identify any obligations to return materials, stop using the brand, account for stock or sell remaining inventory after termination.

For registered rights, confirm the Thai registrations and their current owner. A foreign trademark registration does not, by itself, establish a Thai registration. If a trademark or patent license was granted, its terms and registration status also need review. A contractual restriction and an IP right may support different claims even when they concern the same conduct.

Where the immediate issue is performance or termination of the agreement, our Contract Dispute Services in Thailand address the contractual side of the matter.

Is the product counterfeit, genuine or something else?

This question affects both the evidence needed and the language used with the other party.

Goods made without approval and bearing a brand’s mark may raise serious trademark and contractual issues. However, an unauthorized production run should be assessed on its facts before every unit is described as counterfeit. The analysis may turn on the source of the goods, who applied the mark, the extent of the manufacturer’s authority and what occurred after permission ended.

Likewise, a distributor’s sale of genuine goods outside an authorized network does not automatically make the goods fake. It may raise questions about contract terms, the source of inventory, representations of official status and the legal treatment of the particular resale. Our Parallel Import Investigation in Thailand page explains why genuine goods sold through unofficial channels require a separate assessment.

A clear classification prevents a brand from sending an allegation that its evidence cannot yet support.

What evidence should be preserved?

The strongest starting file usually combines rights, permission, conduct and loss:

1. Rights and ownership: Thai registration details, relevant assignments, brand materials and records showing who developed the product, packaging or information.
2. Scope of the relationship: signed agreements, amendments, purchase orders, approved quantities, specifications, invoices and termination communications.
3. Current conduct: dated listings, seller profiles, advertisements, packaging, customer messages, product samples, photographs and records of where the goods were obtained.
4. Production and distribution trail: available batch or serial numbers, delivery records, authorized production totals, stock reports and discrepancies requiring explanation.
5. Commercial impact: evidence of diverted sales, customer confusion, unpaid amounts or other identifiable loss, where relevant.

Preserve original electronic files and note the source and date of each record. If a sample purchase is needed, document the transaction so the delivered item can be linked to the seller and order. Avoid assuming that a courier’s name, payment recipient or marketplace account alone identifies the manufacturer behind the goods.

Local market checks, seller contact and product purchase verification may help establish what is actually being supplied. See our Mystery Shopping Investigation in Thailand service for that type of factual work.

When does confidential information change the case?

Manufacturers often receive formulas, manufacturing instructions, technical files, pricing or customer information to perform a limited task. A concern arises if that information is disclosed or used outside the permitted purpose.

A confidentiality clause is important, but the legal analysis should also identify the specific information at issue, who controlled it, who had access, how its confidentiality was maintained and what evidence indicates unauthorized use. Ownership of a formula should not be assumed merely because a brand paid for product development; the development history and agreements matter.

If there is a risk that sensitive files or production information are being used elsewhere, act promptly to preserve the available records and review access. Our Trade Secret Investigation in Thailand service addresses confidential business information and evidence gathering.

Which enforcement response fits the facts?

There is no single sequence that suits every manufacturer or distributor dispute. After assessing the rights and evidence, possible steps may include:

• A focused notice or demand: identify the conduct, the rights or contractual terms relied on, what must stop, and what records or goods must be addressed.
• Negotiation or a structured exit: deal with remaining stock, molds, files, customer communications, accounts, payment and future use of the brand.
• Platform or channel action: address specific misleading listings or unauthorized use where the relevant platform’s requirements can be met.
• Civil proceedings or urgent court relief: consider these where the claim, evidence and risk of continuing harm justify them.
• Criminal complaint or other authority action: assess whether the facts meet the requirements of a specific IP offence; a breach of contract alone should not be presented as a counterfeit crime.

Sometimes a warning alerts the other party before stock and records have been documented. In other cases, an early demand may lead to a practical resolution. The decision should reflect the risk of disappearing evidence, the value of the ongoing relationship and the client’s desired result.

Our Anti-Counterfeiting and IP Enforcement Services in Thailand cover investigation, evidence review and enforcement planning where the facts support IP action.

Questions to resolve before escalating

Before taking a public position or demanding that all sales stop, a brand owner should ask:

• Was the agreement validly terminated, and when did the other party receive notice?
• Does the other party hold genuine inventory it acquired under the agreement?
• Are the Thai trademark, patent or other relevant rights registered in the expected name?
• Were molds, artwork or formulas created by the brand, the manufacturer or both?
• Does the agreement require negotiation, mediation or arbitration in a particular forum?
• Can the evidence distinguish approved production from additional production?
• What immediate result matters most: stopping new manufacture, recovering files and tooling, correcting public claims, obtaining an account of sales, or recovering money?

Answering these questions helps match the claim to the conduct. It also reduces the risk of treating an ordinary distribution dispute as a proven IP offence, or overlooking a serious misuse of rights because the parties once had a valid commercial relationship.

Discuss a manufacturer or distributor dispute in Thailand

Skyinterlegal can assess the agreements and Thai IP position, organize the evidence, arrange relevant local fact checks and develop a proportionate response.

Send us the manufacturing or distribution agreement, any termination notice, Thai IP registration details, examples of the disputed products or listings, and a short timeline of events.

Frequently Asked Questions

Can a Thai factory make extra units of my product and sell them itself?

The answer depends on the manufacturing agreement, ownership of the goods and materials, the rights used on the products, and what the factory actually produced and sold. Extra production may involve breach of contract and, in appropriate circumstances, IP infringement. Review the orders, production records, samples and sales evidence before characterizing the conduct.

Is every product sold by an unauthorized distributor counterfeit?

No, a distributor may be selling genuine goods obtained through an authorized or other supply channel. Its ability to sell particular stock, use the brand or claim official status requires a separate review of the facts, rights and agreement.

If my distributor agreement ended, can the former distributor keep using my logo?

Continued use should be assessed against the termination terms, any trademark license, the Thai trademark position and the way the logo is currently used. A former distributor’s claim that it remains officially appointed may raise different issues from its sale of previously acquired genuine stock.

Does an NDA prove that my formula is a protected trade secret?

An NDA is relevant evidence of an obligation to keep information confidential. It does not answer every question about who developed the formula, what information was secret, who had access, how it was protected or whether the suspected conduct involved that information.

Can we seek an injunction before the factory has sold all the goods?

Urgent relief may be available under an applicable legal claim where the requirements are met. The specific right, evidence of ongoing or imminent conduct and the court procedure need to be assessed promptly. An injunction is not automatic because a business relationship has ended.

Should we send a cease-and-desist letter immediately?

Considering whether the current evidence is sufficient and whether advance notice could cause relevant stock or records to disappear. The timing and wording should follow the investigation and the commercial objective.

What if the Thai partner registered our brand in its own name?

Obtain the Thai filing and registration records, the history of the business relationship and any documents showing the parties’ understanding about ownership. The available challenge or negotiation strategy depends on the filing history and legal grounds. Do not assume the issue is resolved merely by showing ownership of the brand overseas.

Can Skyinterlegal assist a foreign brand owner without a Thai office?

We can review Thai rights and local facts, coordinate lawful market and product checks, assess contractual and IP issues, and advise on an appropriate Thailand-based response. The work required depends on the documents, parties, product and conduct involved.