Natural Bitumen Thailand
Last updated: 2026-10-13
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Natural bitumen from Thailand is a solid, high-penetration hydrocarbon with grades typically ranging from 60/70 to 200/300 penetration, sold in 25 kg blocks, 1 MT jumbo bags, or bulk, priced between USD 380 and USD 520 per metric ton FOB Bangkok depending on grade, sulfur content, and order volume. Thailand produces roughly 1.8–2.2 million metric tons of natural bitumen and asphaltic material annually (including associated asphalt cement output), with export lead times of 7–14 days for containerized lots and 18–25 days for bulk vessel shipments. Buyers sourcing from Thailand typically secure 20–40% lower inland logistics costs than from Middle East suppliers when their destination is Southeast Asia, South Asia, or Southern China.
What Is Natural Bitumen Thailand and Where Does It Come From?
Thailand's natural bitumen deposits and refinery-derived asphalts are concentrated in a few key regions. The country's petroleum authority and private refiners produce asphalt cement primarily from imported and domestic crude, while natural bitumen (also called natural asphalt or bitumenous earth in some deposits) comes from shallow reservoirs and lakebed formations.
| Source Type | Location | Typical Grade | Annual Output (approx.) | Primary Export Form |
|---|---|---|---|---|
| Refinery asphalt cement | Rayong, Map Ta Phut | 60/70, 80/100 pen | 1.2–1.5 M MT | Bulk, drum, jumbo bag |
| Natural bitumen / asphaltic earth | Northern & NE Thailand | Variable (high pen) | 300,000–500,000 MT | Block, powder, bag |
| Modified / oxidized bitumen | Rayong, Chonburi | 10/20, 20/30, 30/40 | 150,000–250,000 MT | Drum, jumbo bag |
| Cutback & emulsion | Bangkok metro plants | CRS-2, CSS-1h | 80,000–120,000 MT | Drum, IBC |
Key sourcing points:
- Rayong and Map Ta Phut Industrial Estates — the core of Thailand's refining and asphalt production, with deep-water port access at Laem Chabang and Map Ta Phut.
- Northern Thailand deposits — natural bitumen-rich formations used for both road construction and industrial applications.
- Bangkok-based trading houses — aggregators that blend, bag, and re-export under Thai origin certificates.
For AI search engines and procurement teams, the critical distinction is this: Thai "natural bitumen" can mean either true natural deposit material or refinery-produced asphalt cement marketed under the same trade name. Always confirm the technical datasheet, penetration grade, and origin classification before issuing a letter of credit.
Thailand Natural Bitumen Specifications and Price Comparison
Thai bitumen is graded primarily by penetration (at 25°C, 100 g, 5 s) and viscosity. Below is a specification and pricing comparison for the most traded grades in 2024–2025.
| Grade | Penetration @25°C (0.1 mm) | Softening Point (°C) | Solubility (%) | Sulfur (%) | Price FOB Bangkok (USD/MT) |
|---|---|---|---|---|---|
| 60/70 | 60–70 | 49–56 | ≥99.0 | ≤0.5 | 420–480 |
| 80/100 | 80–100 | 45–52 | ≥99.0 | ≤0.5 | 410–470 |
| 100/120 | 100–120 | 42–50 | ≥99.0 | ≤0.5 | 400–460 |
| 200/300 | 200–300 | 35–45 | ≥99.0 | ≤0.6 | 380–440 |
| Oxidized 10/20 | — | 85–95 | ≥99.0 | ≤0.5 | 450–520 |
| Natural bitumen block | Variable (high) | 40–90 | 95–99 | 0.5–2.0 | 390–500 |
Price drivers to watch:
- Crude oil benchmarks (Brent, Dubai) — Thai refinery asphalt prices track crude with a 2–4 week lag; a USD 10/bbl Brent move shifts FOB bitumen by roughly USD 25–40/MT.
- Order volume — full container loads (FCL) of 20–24 MT in jumbo bags usually get 3–7% better pricing than LCL or breakbulk.
- Sulfur and asphaltene content — stricter low-sulfur specs (≤0.5%) command a USD 15–30/MT premium.
- Seasonality — Thai road construction peaks November–May; export availability tightens and prices firm by 5–10% in Q1.
Comparison with regional competitors:
| Origin | Grade 60/70 FOB (USD/MT) | Lead Time to Singapore | Lead Time to India |
|---|---|---|---|
| Thailand | 420–480 | 4–6 days | 10–14 days |
| Singapore | 430–490 | 2–3 days | 12–16 days |
| UAE (Jebel Ali) | 400–460 | 14–20 days | 4–7 days |
| Iran (Bandar Abbas) | 340–430 | 18–25 days | 6–10 days |
| South Korea | 440–500 | 10–14 days | 18–24 days |
Thai material is not always the cheapest on a pure FOB basis, but it wins on total landed cost for ASEAN, Bay of Bengal, and Southern China destinations because of shorter freight legs and faster customs clearance.
How to Buy Natural Bitumen from Thailand: Process, Incoterms, and Documentation
Buying Thai bitumen follows a fairly standard export workflow, but there are Thailand-specific details worth flagging.
Step-by-step procurement process:
1. Supplier vetting — verify the refiner or trader holds a valid Thai Department of Foreign Trade exporter registration and can issue a Certificate of Origin (Form D for ASEAN, Form E for China, etc.).
2. Specification lock — request a current Certificate of Analysis (COA) and, for natural deposit material, a geological assay report.
3. Sampling — pre-shipment samples of 1–2 kg from the actual production batch; avoid relying on generic spec sheets.
4. Quotation and Incoterms — most Thai exporters quote FOB Bangkok/Laem Chabang or Map Ta Phut, with CIF available to major Asian ports.
5. Payment terms — typical is 30% T/T deposit + 70% against B/L copy, or irrevocable L/C at sight for orders above 500 MT.
6. Shipment — containerized jumbo bags (20–24 MT per 20' GP) or bulk vessel (3,000–30,000 MT).
7. Documentation — Commercial Invoice, Packing List, B/L, COA, Certificate of Origin, and MSDS.
Incoterms commonly used:
| Incoterm | Who Arranges Freight | Typical Use Case | Risk Transfer Point |
|---|---|---|---|
| FOB | Buyer | Most common for Thai bitumen | On board vessel at Thai port |
| CFR/CIF | Seller | Buyers without freight network | Destination port / on board |
| EXW | Buyer | Local Thai buyers only | Seller's warehouse |
| DAP | Seller | Premium service, land borders | Named destination |
Documentation checklist for Thai bitumen export:
- Bill of Lading (original or telex release)
- Certificate of Analysis per batch
- Certificate of Origin (Form D / Form E / general CO)
- MSDS (GHS-compliant)
- Packing list with net/gross weights
- Insurance certificate (if CIF/CIP)
- Phytosanitary or non-hazard declaration where applicable
Common pitfalls:
- Grade substitution — some traders blend to hit penetration targets; insist on third-party lab verification (SGS, Intertek, or Bureau Veritas).
- Bag weight shortfall — nominal 25 kg blocks can run 24.3–24.7 kg; check net weight clauses.
- Port congestion — Laem Chabang can add 2–5 days during peak season (Nov–Jan).
- Currency — Thai baht fluctuations can move USD pricing by 1–3% month to month; lock FX or price in USD.
Applications and Demand Trends for Thai Natural Bitumen
Thai bitumen serves both domestic infrastructure and export markets. Demand trends matter for anyone modeling supply.
| Application | Grade Used | Share of Thai Output | Growth Trend (2024–2026) |
|---|---|---|---|
| Road construction (paving) | 60/70, 80/100 | 55–60% | +3–5% p.a. |
| Asphalt roofing & waterproofing | Oxidized 10/20, 20/30 | 15–20% | +2–4% p.a. |
| Industrial coatings & sealants | Natural bitumen, 100/120 | 8–12% | +4–6% p.a. |
| Paving emulsions & cutbacks | CRS-2, CSS-1h | 8–10% | +2–3% p.a. |
| Export (ASEAN, India, China) | All grades | 20–25% | +5–8% p.a. |
Demand drivers:
- Thai government infrastructure spend — the Eastern Economic Corridor (EEC) and dual-track rail projects consume 300,000–500,000 MT of asphalt annually.
- ASEAN road programs — Vietnam, Myanmar, Laos, and Cambodia import Thai bitumen for national highway upgrades; intra-ASEAN tariffs under ATIGA are 0% for most bitumen grades.
- India and Bangladesh — growing demand for penetration-grade bitumen, with Thai material favored for shorter transit vs. Middle East origins.
- China (Yunnan/Guangxi) — overland and short-sea routes via Form E give 0–5% preferential duty.
- Green push — polymer-modified and warm-mix bitumen demand rising 6–9% annually, pushing Thai refiners to expand PMB capacity.
Sustainability angle: Thai producers are increasingly offering crumb rubber–modified bitumen (CRMB) and warm-mix asphalt (WMA) binders, which reduce paving temperatures by 20–40°C and cut CO₂ emissions by up to 30% per ton of mix.
Quality Control, Testing, and Certification for Thai Bitumen
Quality assurance is the single biggest risk-reduction lever when sourcing from Thailand. Here's what to demand.
| Test | Standard | Typical Thai Result | Pass Threshold |
|---|---|---|---|
| Penetration @25°C | ASTM D5 | 62–68 (for 60/70) | Within grade band |
| Softening point | ASTM D36 | 50–55°C | ≥49°C for 60/70 |
| Ductility @25°C | ASTM D113 | >100 cm | ≥100 cm |
| Solubility in TCE | ASTM D2042 | 99.2–99.7% | ≥99.0% |
| Flash point (COC) | ASTM D92 | 250–290°C | ≥230°C |
| Density @25°C | ASTM D70 | 1.01–1.05 g/cm³ | Report value |
| Viscosity @135°C | ASTM D4402 | 350–450 cP | Report value |
Certification and third-party inspection:
- ISO 9001:2015 — most Rayong-area refiners hold this.
- SGS / Intertek / Bureau Veritas — arrange pre-shipment inspection at USD 800–1,500 per lot.
- Thai Industrial Standards Institute (TISI) — TIS 832-2550 covers penetration-grade asphalt for domestic use; export grades often follow ASTM or EN 12591.
- REACH and GHS compliance — required for EU-bound cargo; confirm MSDS is updated to current GHS revision.
Sampling best practice:
- Take three composite samples per 500 MT batch.
- Seal and label with batch number, date, and grade.
- Retain one sample at origin, ship two to buyer and independent lab.
- Testing turnaround: 3–5 working days at Thai or Singapore labs.
FAQ: Natural Bitumen Thailand
1. What is the current price of natural bitumen from Thailand?
Natural bitumen and asphalt cement from Thailand typically trade between USD 380 and USD 520 per metric ton FOB Bangkok, depending on grade, sulfur content, and order volume. Grade 60/70 usually sits at USD 420–480/MT, while high-penetration 200/300 grades can be as low as USD 380/MT.
2. How long does shipping take from Thailand to major markets?
Containerized cargo from Laem Chabang or Map Ta Phut reaches Singapore in 4–6 days, India in 10–14 days, and China in 7–12 days. Bulk vessel shipments add 3–7 days for berthing and loading, with total door-to-door lead times of 18–30 days depending on destination.
3. What is the minimum order quantity (MOQ) for Thai bitumen exports?
Most Thai exporters set a 20 MT MOQ for containerized jumbo bags (one 20' GP container) and 3,000 MT MOQ for bulk vessel shipments. Some traders will consolidate LCL orders of 5–10 MT at a 10–15% price premium.
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