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Buyer's Guide9 min readΒ·May 12, 2026

ICUMSA 45 Sugar Buying Checklist: How to Source Direct from Thai Mill

A practical 10-step checklist for importers sourcing ICUMSA 45 refined sugar direct from Thai sugar mills β€” covering supplier verification, sample testing, documentation, and risk management.

Why Buy ICUMSA 45 Sugar Direct from a Thai Mill?

ICUMSA 45 refined white sugar is the benchmark global sugar export grade β€” a brilliant white, high-purity (99.9%+ sucrose) sugar with maximum color of 45 ICUMSA units. It is used in beverages, confectionery, dairy, pharmaceuticals, and premium retail packaging worldwide.

Thailand is the world's second-largest sugar exporter, and buying directly from a Thai sugar mill β€” rather than through a trading company β€” offers three key advantages:

  1. Price: Mill-direct buyers save $20–60/MT versus trading company intermediaries
  2. Quality control: Mills control production from raw cane to packaged export product
  3. Supply reliability: Direct relationships with mills ensure priority allocation during tight supply periods
This 10-step checklist helps you execute a successful first purchase.

Step 1: Verify the Mill's Export License and Registration

Legitimate Thai sugar mills export under licenses from:

  • Office of the Cane and Sugar Board (OCSB): Thailand's sugar industry regulator β€” verifies mill registration
  • Thai Customs Department: Export license registration
  • Department of Business Development (DBD): Company registration number
Ask the supplier for their OCSB mill registration number and DBD registration. Legitimate mills will provide these immediately.

Step 2: Confirm Direct Mill Status

Many companies in Thailand sell sugar but do not own a mill β€” they are traders who source from multiple mills. For price and quality benefits, confirm:

  • "Do you own and operate your own sugar mill?"
  • "Can you provide the name and location of your milling facility?"
  • "Can we arrange a factory visit or virtual mill tour?"
A genuine mill-direct exporter will answer these questions confidently and provide their mill's GPS location.

Step 3: Verify Quality Certifications

For ICUMSA 45 sugar, standard certifications that buyers should require:

  • ISO 9001:2015: Quality management system certification
  • HACCP: Food safety hazard analysis β€” critical for food-grade sugar
  • ISO 22000: Advanced food safety management β€” required for EU and USA food manufacturers
  • Halal certification: Essential for Middle East, Malaysia, Indonesia, and other Muslim-majority markets (require CICOT Thailand, JAKIM, or IFSCC-recognized body)
  • Kosher certification: For markets with significant Jewish communities (USA, Israel, Europe)
  • Organic certification: Only if you require organic-certified product (separate from conventional ICUMSA 45)
Request copies of current certificates (with expiry dates visible) and verify online where possible.

Step 4: Request a Product Sample with COA

Before committing to a container, request a 100–500 g laboratory sample with:

  • Certificate of Analysis (COA) showing: Sucrose content (β‰₯99.9%), ICUMSA color (≀45 IU), moisture (≀0.04%), conductivity ash (≀0.03%), insoluble impurities (≀60 mg/kg), SOβ‚‚ residue (≀20 ppm), pH (6.0–8.0)
  • Sample origin: Should state mill name, production date, and lot number
  • Third-party COA: Optionally request SGS or Bureau Veritas lab analysis β€” adds 7–10 days but provides independent verification
Send the sample to your own accredited laboratory for independent testing before approving the supplier.

Step 5: Compare FOB Bangkok Pricing

2026 reference pricing for ICUMSA 45 FOB Bangkok:

GradePackagingFOB Price/MT
ICUMSA 4550 kg PP bags$480–$500/MT
ICUMSA 4525 kg PP bags$490–$510/MT
ICUMSA 451 MT jumbo bag$470–$490/MT
ICUMSA 100 (VHP)50 kg bags$420–$440/MT
ICUMSA 150 (raw)50 kg bags$400–$430/MT
Volume discounts: 3+ containers per order typically unlocks $10–15/MT savings. Annual contracts (100+ MT/year) can lock in price protection against market volatility.

Step 6: Negotiate Payment Terms

Standard payment terms for first orders:

  • 30% TT advance + 70% TT against copy BL: Most common β€” provides cash flow balance for both buyer and seller
  • Sight L/C: Letter of Credit at sight β€” maximum buyer protection; seller only draws payment against compliant documents
  • Usance LC (30/60/90 days): For established relationships β€” gives buyer 1–3 months payment deferral
Avoid 100% TT advance to a new supplier. If the supplier insists on 100% advance for a first large order, consider it a red flag.

Step 7: Confirm Container Specifications

Standard ICUMSA 45 sugar container loading:

  • 20ft container: 25 MT (500 bags Γ— 50 kg or 1,000 bags Γ— 25 kg)
  • 40ft container: 26 MT (capacity limited by weight, not volume)
  • Jumbo bag: 25 MT per 20ft container (25 bags Γ— 1 MT)
  • Packaging material: PP woven bags with PE inner liner β€” standard for ICUMSA 45
Confirm: Does price include freight to port? Who arranges customs export clearance? Who books the vessel (FOB = buyer; CIF = seller)?

Step 8: Review the Full Documentation Package

Every ICUMSA 45 sugar shipment should include:

  1. Commercial Invoice
  2. Packing List
  3. Bill of Lading (or Seaway Bill)
  4. Certificate of Origin (COO) β€” from Thai Chamber of Commerce
  5. Certificate of Analysis (COA) β€” per lot
  6. Phytosanitary Certificate (if required by destination)
  7. Halal Certificate (for Muslim-majority markets)
  8. SGS/Bureau Veritas inspection report (optional but recommended)
Request sample documents from the supplier before ordering to confirm they can produce all required documents for your destination country.

Step 9: Plan Arrival Logistics

Before shipment, confirm with your freight forwarder:

  • Import duty rate for ICUMSA 45 sugar (HS 1701.99) in your country
  • Any import permits or sugar quota requirements (some countries regulate sugar imports)
  • Port storage charges if customs clearance is delayed
  • Warehouse humidity requirements (ICUMSA 45 must be stored below 60% RH to prevent caking)

Step 10: Start Small, Then Scale

For your first order with a new Thai sugar supplier:

  • Start with 1 Γ— 20ft container (25 MT) even if you plan to buy 200 MT/year
  • Evaluate product quality, documentation accuracy, and communication
  • If the first container meets expectations, negotiate annual contract pricing for subsequent orders
A professional Thai sugar mill will welcome this approach and understand it is standard practice for international buyers.

Ready to Source ICUMSA 45 Sugar Direct from Thailand?

Kanthararom Sugar is a Thai sugar mill exporting ICUMSA 45 and other sugar grades directly to importers in 50+ countries. We hold ISO 9001, HACCP, ISO 22000, Halal, and Kosher certifications. MOQ 1 container (25 MT). Free samples available.

Request a free ICUMSA 45 quote | ICUMSA Grades Explained | Thai Sugar Prices 2026

Ready to Source Thai Sugar?

Get a competitive FOB Bangkok quote within 24 hours. MOQ 1 container.