Importing Frozen Seafood into Thailand: Regulations, Duties & Buyer's Guide 2026

Thailand is one of the world's largest seafood markets — both as a consumer and a processing hub. Despite being a major seafood producer itself, the country imports significant volumes of frozen fish, squid, and tuna to feed its massive domestic processing industry and satisfy growing retail demand. For Chinese seafood exporters, Thailand represents a high-value market with strong cultural ties to Chinese cuisine and a well-developed cold chain infrastructure.

But entering the Thai market means navigating a specific regulatory environment. This guide covers everything you need to know about importing frozen seafood into Thailand in 2026 — from Thai FDA regulations to tariff structures, documentation requirements, and practical tips for building lasting buyer relationships.

Why Thailand? The Market Opportunity

Thailand's frozen seafood import market is driven by several structural factors that make it attractive for international suppliers:

• Processing hub demand: Thailand is the world's largest canned tuna processor (Thai Union, leading global player). This creates enormous demand for frozen tuna loins, skipjack, and yellowfin as raw material inputs.
• Domestic consumption: With a population of 72 million and per capita seafood consumption exceeding 33 kg/year, Thailand has one of the highest seafood consumption rates in Southeast Asia.
• Food service growth: Thailand's tourism sector (recovering strongly post-pandemic with 35+ million visitors expected in 2026) drives demand in hotels, restaurants, and street food vendors.
• Seasonal gaps: During the off-season (June–September monsoon period), domestic catch declines sharply, increasing reliance on imports to maintain supply continuity.
• Competitive logistics: Chinese ports (particularly Ningbo, Qingdao, Zhoushan) offer short transit times to Thai ports — typically 7–12 days by sea, compared to 20–30 days from South American suppliers.

Key insight: Thailand imported over USD 3.5 billion in frozen seafood in 2025, with China remaining the single largest source country for frozen mackerel, squid, and prepared tuna products.

Thai FDA Regulations for Frozen Seafood

The Thai Food and Drug Administration (FDA), operating under the Ministry of Public Health, regulates all food imports including frozen seafood. Understanding their requirements is non-negotiable — shipments arriving without proper documentation will be held at the port.

Import License Requirements

Before any frozen seafood can enter Thailand, the Thai importer must hold a valid Food Import License (ใบอนุญาตนำเข้าอาหาร) issued by the Thai FDA. This is the responsibility of the buyer — as an exporter, your job is to ensure your documentation supports their compliance.

Required Documentation from Exporters

For each shipment, you must provide the following documents:

• Health Certificate: Issued by your country's official authority (in China, this is the General Administration of Customs — GACC). Must state the product name, processing plant registration number, batch/lot number, production date, and confirm the product is fit for human consumption.
• Certificate of Origin (CO): Certified by the local Chamber of Commerce. Required for tariff assessment and can provide preferential duty rates under ACFTA (ASEAN-China Free Trade Area).
• Commercial Invoice: Detailed description of goods, HS code, quantity, unit price, and total value. Must be consistent across all documents.
• Packing List: Detailed breakdown of cartons/pallets, net weight, gross weight, and dimensions.
• Bill of Lading (B/L): Standard shipping document. For air freight, use Airway Bill (AWB).
• Product Specification Sheet: Should include species (scientific and common name), size/grade, processing method, additives used, and storage temperature requirements.
• Halal Certificate: Highly recommended. While not legally required for all products, Thailand has a significant Muslim population (4–5 million) and Halal certification significantly broadens market access, particularly in southern Thailand and for food service clients.

Thai FDA Registration and Facility Approval

Thailand maintains a list of approved foreign food processing facilities. Your processing plant must be registered with the Thai FDA (or, for many products, listed by GACC which Thailand recognizes under bilateral agreements). If you're already exporting to the EU, Japan, or the US, you likely meet Thai standards — but always confirm current registration status with your buyer before shipping.

Residue and Contaminant Standards

The Thai FDA enforces strict limits on:

• Heavy metals: Mercury ≤ 1.0 mg/kg (predatory fish), lead ≤ 0.3 mg/kg, cadmium ≤ 0.5 mg/kg for squid
• Microbiological limits: Salmonella: not detected in 25g sample; E. coli ≤ 100 CFU/g; Vibrio parahaemolyticus ≤ 100 CFU/g
• Antibiotic residues: Chloramphenicol, nitrofurans, and malachite green must not be detected (zero tolerance). This is critically important for shrimp and farmed species.
• Histamine: For scombroid fish (mackerel, tuna), histamine levels must not exceed 200 mg/kg (or 100 mg/kg for some categories under tighter enforcement)

Tariff Structure for Frozen Seafood

Thailand applies import duties on frozen seafood under the ASEAN Harmonized Tariff Schedule. Thanks to the ASEAN-China Free Trade Area (ACFTA), most frozen seafood from China enjoys reduced or zero tariff rates.

Product Category	HS Code	ACFTA Rate	MFN Rate	VAT
Frozen mackerel (whole/round)	0303.53	0%	10%	7%
Frozen mackerel (fillets)	0304.87	0%	12%	7%
Frozen squid	0307.49	0%	10%	7%
Frozen tuna (whole)	0303.44	0%	10%	7%
Frozen tuna loins/fillets	0304.86	0%	12%	7%
Frozen horse mackerel	0303.54	0%	10%	7%

Important: The ACFTA preferential rate of 0% applies ONLY if you provide a valid Certificate of Origin (Form E) issued by China's CCPIT or CIQ. Without it, the standard MFN rate applies. Always confirm with your buyer that they will use the ACFTA channel.

In addition to import duty and VAT, importers typically pay:

• Port and handling charges: Approximately THB 2,000–5,000 per container (varies by port)
• Customs broker fees: THB 3,000–8,000 per shipment
• Storage fees: THB 800–1,500 per day if cargo is not cleared promptly
• Inspection fees: THB 500–2,000 if physical inspection is ordered (random or targeted)

Customs Clearance Process

Clearing frozen seafood through Thai customs follows a standard but carefully timed process:

Step 1: Pre-shipment Notification

The Thai importer must submit an import declaration through the Thai Customs electronic system (e-Customs) at least 24 hours before the vessel arrives. All documentation (health certificate, CO, invoice, packing list) must be uploaded digitally.

Step 2: Port Arrival and Unloading

Frozen seafood must be moved to a cold storage facility at the port within 4 hours of unloading. Thailand's major ports (Laem Chabang, Songkhla, and Bangkok Port) all have bonded cold storage facilities with temperatures maintained at -18°C or below.

Step 3: Customs Inspection

The Thai FDA and Customs use a risk-based inspection system:

• Green channel (≈70% of shipments): Document check only, released immediately
• Yellow channel (≈20%): Document review + X-ray scanning
• Red channel (≈10%): Full physical inspection and laboratory sampling. Results typically take 3–7 working days

Step 4: FDA Clearance

After customs releases the shipment, the Thai FDA conducts a separate food safety review. This is usually a documentation check, but they may order sampling if the product is from a new supplier or has triggered past issues. Typical FDA clearance takes 1–3 working days.

Step 5: Delivery to Importer's Facility

Once cleared, the importer arranges refrigerated truck transport to their cold storage or processing facility. Cold chain must be maintained at -18°C throughout.

Key Thai Ports and Logistics

Laem Chabang Port

Thailand's largest deep-sea port, handling approximately 80% of the country's container traffic. Located 130 km south of Bangkok in Chonburi Province. Excellent cold storage infrastructure and direct shipping connections from major Chinese ports. Transit time from Ningbo: approximately 7–9 days.

Songkhla Port

Southern Thailand's primary port, strategically located near the Malaysian border. Important for frozen seafood destined for southern Thailand's processing zone and export re-shipment to Malaysia and Indonesia. Transit time from Guangdong ports: approximately 5–7 days.

Bangkok Port (Khlong Toei)

Older but still active for smaller consignments. Located centrally in Bangkok, offering quick access to the city's wholesale markets (most notably, the Mahachai seafood market, one of Southeast Asia's largest).

Understanding the Thai Buyer

Building relationships with Thai seafood importers requires understanding their business priorities and decision-making culture:

Price Sensitivity

Thai buyers are highly price-competitive. They regularly compare offers from China, Vietnam, India, and Indonesia. To win business, focus on the total delivered cost — not just per-unit price. Factors that matter:

• Consistent quality grade (no mixing of sizes or grades within a container)
• Reliable supply (on-time delivery, no last-minute cancellations)
• Flexible payment terms (many Thai importers prefer 30–60 day terms after establishing trust)
• Low defect rates (glazing ratio, proper packaging, no temperature abuse)

Communication Style

Thai business culture values politeness, patience, and relationship-building. Direct hard-sell approaches are counterproductive. Initial communications should be warm and relationship-focused — expect multiple rounds of negotiation and sample shipments before a large order materializes.

Quality Expectations

Thai importers who process for export (to EU, US, Japan) will impose standards equivalent to their destination markets. Even buyers serving only the domestic market increasingly demand higher quality as Thai consumer expectations rise. Key quality parameters:

• Consistent sizing (graded by count per kg or piece weight range)
• Proper glazing (typically 10–20% for protection)
• Clean labeling (Thai labeling requirements mandate product name, net weight, origin, importer details, and production/expiration dates in Thai language — your buyer handles this, but provide clear spec sheets)
• Strong packaging (master cartons rated for tropical/high-humidity conditions)

Seasonal Buying Patterns

Period	Demand Level	Key Drivers
January–March	High	Chinese New Year demand; replenishment after year-end
April–May	Moderate	Songkran holiday slowdown; pre-monsoon stocking
June–September	Very High	Monsoon season — domestic catch drops, import demand surges
October–December	High	Peak tourism season; year-end food service stocking

Common Mistakes to Avoid

1. Mismatched HS codes: Using incorrect HS codes on invoices or packing lists can trigger delays and additional inspections. Always confirm the correct Thai HS code with your buyer before shipping.
2. Missing ACFTA documentation: Without a valid Form E Certificate of Origin, your buyer pays full MFN duty rates — making your product 10–12% more expensive than it needs to be.
3. Inconsistent quality between sample and shipment: This is the fastest way to lose a Thai buyer. If your sample shows premium grade, the shipment must match. Thai buyers talk to each other — reputation damage is real.
4. Ignoring Halal certification: Even if your buyer doesn't specifically request Halal, having it opens doors to the broader Southeast Asian market and adds credibility.
5. Poor cold chain documentation: Temperature log records throughout transit are increasingly expected. Invest in temperature data loggers for each container.
6. Overlooking labeling details: Ensure batch numbers, production dates, and expiry dates are clearly printed on both inner and outer packaging. Thai FDA inspectors check these.

Getting Started: Practical Steps

If you're ready to explore the Thai market, here's a practical action plan:

1. Research your product's positioning: Identify which segment you're targeting — processing input, food service, or retail. Each has different quality and pricing expectations.
2. Prepare your documentation: Ensure your health certificate template, CO process, and product spec sheets meet Thai FDA requirements. Have them reviewed by an experienced Thai importer.
3. Obtain Halal certification: If you don't already have it, start the process through an accredited Halal certification body recognized by CICOT (Central Islamic Committee of Thailand).
4. Attend Thai trade shows: THAIFEX – Anuga Asia (May/June, Bangkok) and VIV Asia (Bangkok) are the premier events for meeting Thai seafood buyers face-to-face.
5. Start with sample shipments: Most Thai importers want to test 500–2,000 kg samples before committing to container volumes. Factor this into your market entry budget.
6. Find a reliable customs broker: Work with your Thai buyer to ensure they have an experienced customs broker who handles frozen seafood regularly.