GS Caltex Bitumen
Last updated: 2026-10-01
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GS Caltex Bitumen
GS Caltex bitumen refers to penetration-grade and polymer-modified bitumen produced and marketed in South Korea through GS Caltex's refining and supply network, with the GS Caltex brand tied to its Yeosu refining complex and its base oil/bitumen trading arm. Typical export volumes from South Korea run in the range of 700,000–1,000,000 metric tons of bitumen per year, with GS Caltex-linked supply covering grades such as Pen 60/70, Pen 40/50, Pen 85/100, and PG 64-22 / PG 70-22 polymer-modified bitumen. Pricing for GS Caltex-origin bitumen in drums or bulk typically tracks Singapore and Korea FOB benchmarks, commonly quoted between USD 430 and USD 560 per metric ton FOB depending on grade, season, packaging (drum vs. bulk), and freight destination, with lead times of 15–30 days for bulk cargoes and 20–35 days for drummed shipments.
What Is GS Caltex Bitumen and Who Produces It?
GS Caltex is one of South Korea's largest refining and petrochemical companies, operating a major refinery complex in Yeosu with refining capacity in the range of 800,000+ barrels per day. Bitumen (asphalt) is one of the heavier by-products of the refining process, and GS Caltex supplies penetration-grade bitumen and modified bitumen to construction, road-paving, and industrial users across Asia, the Middle East, Africa, and Oceania.
Key characteristics of GS Caltex bitumen in the market:
- Origin: South Korea (Yeosu refining complex and related logistics)
- Grades commonly traded: Pen 60/70, Pen 40/50, Pen 85/100, Pen 100/120, PMB (PG 64-22, PG 70-22)
- Packaging: Bulk (vessel), new steel drums (150 kg / 180 kg), jumbo bags, ISO tanks
- Standards followed: KS (Korean Industrial Standards), ASTM D946 / D3381, AASHTO M20 / M226
- Certification support: Mill test certificates, third-party inspection (SGS, Intertek, Bureau Veritas)
- Typical export hub: Ulsan, Busan, Yeosu, Incheon ports
Buyers sourcing GS Caltex bitumen are usually road contractors, bitumen traders, drumming plants, and government infrastructure suppliers. The main value proposition is consistent Korean quality, reliable vessel availability, and competitive FOB Korea pricing relative to Singapore or Middle East supply.
| Attribute | GS Caltex Bitumen (Typical) |
|---|---|
| Country of origin | South Korea |
| Main grades | Pen 60/70, 40/50, 85/100, PMB |
| Standard | KS M 2201 / ASTM D946 |
| Packaging | Bulk, drum (150/180 kg), ISO tank |
| FOB price range (2024–2025) | USD 430–560 / MT |
| Min. order (bulk) | 1,000–3,000 MT per shipment |
| Min. order (drums) | 1 x 20'FCL (approx. 80 drums / 14–16 MT) |
| Lead time | 15–30 days (bulk), 20–35 days (drums) |
GS Caltex Bitumen Grades and Specifications Compared
Grade selection is the single biggest factor affecting both price and performance. Penetration grade bitumen is classified by the depth (in tenths of a millimeter) that a standard needle penetrates a sample at 25°C. Lower penetration = harder bitumen; higher penetration = softer bitumen.
For GS Caltex and comparable Korean-origin bitumen, the following specifications are commonly quoted in tender documents and contracts.
| Grade | Penetration @25°C (0.1 mm) | Softening Point (°C) | Viscosity / Use Case | Relative Price (FOB Korea) |
|---|---|---|---|---|
| Pen 40/50 | 40–50 | 52–58 | Hot climates, heavy traffic, airports | Highest (~+3–5%) |
| Pen 60/70 | 60–70 | 49–56 | Standard road paving (most traded) | Benchmark |
| Pen 85/100 | 85–100 | 45–52 | Moderate climates, surface courses | Slightly lower |
| Pen 100/120 | 100–120 | 42–50 | Cold climates, crack sealing | Lower |
| PG 64-22 (PMB) | N/A (performance grade) | 60–70 | High-stress roads, polymer modified | Premium (+15–25%) |
| PG 70-22 (PMB) | N/A | 65–75 | Heavy traffic, high temperature | Premium (+20–30%) |
Practical notes for buyers:
- Pen 60/70 accounts for roughly 60–70% of total GS Caltex bitumen export volumes, making it the default specification for most Asian, African, and Middle Eastern road projects.
- Pen 40/50 carries a premium of about USD 15–25 per MT over Pen 60/70 because of tighter refining requirements and lower yields.
- Polymer-modified bitumen (PMB) from Korea typically prices USD 80–150 per MT above Pen 60/70, reflecting the cost of SBS polymer additives.
- Bitumen must be reheated carefully; overheating above 180–190°C degrades both penetration grades and PMB.
GS Caltex Bitumen Pricing: What Should Buyers Expect in 2025?
Bitumen prices are driven by three things: crude oil benchmarks (Brent/Dubai), regional supply-demand in Asia, and freight/logistics costs. Because GS Caltex bitumen is exported from South Korea, FOB Korea prices are closely linked to Singapore bitumen assessments and Korean refinery netbacks.
The table below shows an indicative price structure for GS Caltex bitumen in a normal trading market. Actual numbers move weekly with crude and freight.
| Cost Component | Typical Range (USD/MT) | Notes |
|---|---|---|
| FOB Korea base price (Pen 60/70) | 430–520 | Tracks Brent + refining spread |
| Drum packaging premium | +40–70 | New steel drums, 150–180 kg |
| Freight (Korea → SE Asia) | 25–45 | Bulk vessel, 3,000–10,000 MT |
| Freight (Korea → West Africa) | 70–120 | Longer route, higher risk |
| Freight (Korea → Middle East) | 35–60 | Depends on port and volume |
| Insurance + inspection | 3–8 | SGS/Intertek, 0.5–1% cargo value |
| Delivered price (CIF, drums, SE Asia) | 550–680 | Example end-to-end range |
Key pricing observations:
- A USD 10/barrel move in Brent typically translates to roughly USD 20–30/MT change in bitumen FOB price within 2–4 weeks.
- Bulk shipments of 3,000–10,000 MT achieve the lowest per-ton freight; drum shipments of 14–16 MT per container carry the highest logistics cost per ton.
- Payment terms are usually irrevocable L/C at sight or 30% T/T advance + 70% against B/L copy for established buyers.
- Price validity in offers is commonly 3–7 days in volatile markets.
GS Caltex Bitumen vs. Other Origins: Comparison Table
Buyers rarely choose on origin alone — they compare landed cost, quality consistency, and delivery reliability. Below is a practical comparison of GS Caltex (Korea) bitumen against other major origins.
| Origin | Typical FOB Price (Pen 60/70) | Quality Consistency | Lead Time | Best For |
|---|---|---|---|---|
| GS Caltex (South Korea) | USD 430–520 | Very high | 15–30 days | Asia, Oceania, Africa, quality tenders |
| Singapore | USD 440–530 | Very high | 10–20 days | SE Asia, fast turnaround |
| Middle East (Iran, UAE, Bahrain) | USD 380–470 | Medium–high (varies) | 20–40 days | Price-sensitive volume buyers |
| India (reprocessed) | USD 400–490 | Medium | 20–35 days | South Asia, Africa |
| Thailand / Malaysia | USD 420–510 | High | 15–30 days | ASEAN region |
Why GS Caltex bitumen often wins tenders:
- Consistent Korean refinery quality with full mill certificates, which matters for government and World Bank-funded projects.
- Strong vessel availability from Ulsan, Busan, Yeosu, and Incheon — multiple sailings per month to Asia, Africa, and the Middle East.
- Competitive pricing that sits between premium Singapore cargoes and discounted Middle East supply.
- Drum quality — Korean new steel drums are widely accepted in West Africa and South Asia, reducing rejection risk at destination.
How to Buy GS Caltex Bitumen: Practical Checklist
Buying bitumen internationally involves more than agreeing on a price. The following checklist covers the operational steps most buyers and traders follow when sourcing GS Caltex bitumen.
Step 1 — Define specification and volume
- Confirm grade (Pen 60/70, Pen 40/50, PMB, etc.) and standard (ASTM D946, KS M 2201).
- Decide packaging: bulk, drums, ISO tanks, or jumbo bags.
- Set minimum order: 1 FCL (~14–16 MT drums) for trials, 3,000+ MT for bulk.
Step 2 — Request a formal offer
- Ask for FOB Korea and CIF destination pricing.
- Confirm price validity period (3–7 days typical).
- Request sample COA (Certificate of Analysis) before shipment.
Step 3 — Contract and payment
- Use a clear sales contract specifying grade, quantity tolerance (±5%), inspection, and penalties.
- Standard payment: irrevocable L/C at sight or 30% advance + 70% against documents.
- Name the third-party inspection agency (SGS, Intertek, BV) in the contract.
Step 4 — Inspection and loading
- Pre-shipment inspection at the Korean port: quantity, quality, drum condition.
- Verify drum weight (150 kg or 180 kg net) and stencil markings.
- Obtain B/L, COO, COA, packing list, and insurance certificate.
Step 5 — Destination handling
- Plan reheating equipment: bulk tanks need heating coils; drums need melting rooms.
- Allow 10–20% loss/reheat allowance if you are new to drum handling.
- Store drums under cover — moisture and rust damage are common rejection causes.
Frequently Asked Questions About GS Caltex Bitumen
1. What grades of GS Caltex bitumen are most commonly exported?
The most commonly exported grades are Pen 60/70 and Pen 40/50, which together account for roughly 70–80% of Korean bitumen export volumes. Polymer-modified grades like PG 64-22 and PG 70-22 are also available but carry a 15–30% price premium.
2. What is the typical price of GS Caltex bitumen per metric ton?
In normal markets, GS Caltex bitumen (Pen 60/70) is quoted at approximately USD 430–520 per MT FOB Korea, with drummed cargoes adding USD 40–70 per MT. Delivered CIF prices to Southeast Asia or Africa typically fall between USD 550 and USD 680 per MT, depending on freight and packaging.
3. How long does delivery take from South Korea?
Bulk cargoes usually load within 15–30 days of contract confirmation, while drummed shipments take 20–35 days. Ocean transit adds roughly 7–14 days to Southeast Asia, 20–30 days to West Africa, and 10–18 days to the Middle East.
4. What is the minimum order quantity for GS Caltex bitumen?
For bulk shipments, minimum orders are typically 1,000–3,000 MT per vessel to make freight economical. For drummed bitumen, the smallest practical order is one 20-foot container, about 80 drums or 14–16 MT, which is ideal for trial orders.
5. How does GS Caltex bitumen compare with Singapore or Middle East bitumen?
GS Caltex bitumen offers quality consistency comparable to Singapore but at USD 10–30 per MT lower FOB pricing in many markets. Compared with Middle East supply, it is usually USD 30–60 per MT more expensive but delivers more reliable specifications and faster, more predictable shipping schedules.
Calculate Your GS Caltex Bitumen Landed Cost with the 6Tar Cost Calculator
Before you commit to a GS Caltex bitumen order, you need the full landed cost — not just the FOB number. Freight, drum packaging, insurance, inspection, port charges, and reheating losses can add USD 100–180 per MT to the base price, and small miscalculations on volume or grade premium can wipe out your margin.
Use the 6Tar cost calculator to model:
- FOB Korea price by grade (Pen 60/70, 40/50, PMB)
- Packaging cost (bulk vs. drum vs. ISO tank)
- Freight and insurance to your destination port
- Inspection, documentation, and port handling charges
- Total landed cost per MT and per container
Run your next GS Caltex bitumen quotation through the 6Tar cost calculator and get a precise,