Bitumen Supply to Indonesia: Grades, Ports and Island Logistics

Indonesia is an archipelago, and that is not a piece of travel writing. It is the commercial fact that governs every binder transaction into the country. The island count is commonly given as around seventeen thousand, and the officially registered figure has been revised more than once as survey methods changed — which is itself a fair warning about how much of what gets said about Indonesia is approximate. The country stretches roughly five thousand kilometres from the western tip of Sumatra to the frontier with Papua New Guinea, and it is wide enough to require three official time zones: Western Indonesian Time at UTC+7 over Sumatra, Java and western Kalimantan; Central Indonesian Time at UTC+8 over Bali, Nusa Tenggara, southern and eastern Kalimantan and Sulawesi; and Eastern Indonesian Time at UTC+9 over Maluku and Papua. A country that needs three time zones is not a country that one delivery term can describe.

So the sentence we supply bitumen to Indonesia carries almost no information. Consider two enquiries that look identical on an offer form — the same grade, the same tonnage, the same packing:

• Five hundred tonnes to an asphalt plant in Bekasi. One ocean voyage into Tanjung Priok, containers discharged at a major terminal with full handling equipment, a road leg of a few tens of kilometres on a toll motorway, and a receiving plant that may well have heated tankage. This is an ordinary maritime import and it can be priced like one.
• Five hundred tonnes to a road project on Sulawesi, in Maluku or in Papua. The same ocean voyage lands the cargo at a hub port where it stops. From there a second, domestic sea leg carries it onward, on a smaller vessel, very possibly geared or a landing craft, into a berth with limited shore handling, followed by a road leg on island roads. There is no realistic bulk option, the packing has to survive being handled several more times, the insurance has to be written to the far end rather than to the port of discharge, and the delivery term has to say who is responsible for a leg the seller may not be able to contract at all.

Those are two different transactions. They differ in the number of contracts of carriage, in the packing that is sensible, in where customs clearance happens, in who bears risk after the hub port, in the cost of the last thousand kilometres relative to the first six thousand, and in how much of the schedule is outside anyone’s control. Any offer written before the destination is known is a guess with a number attached to it.

The five things that decide an Indonesian order

• The island and the port of discharge, then the site. Not the country. Everything downstream follows from it: the routing, the packing, the delivery term, the insurance and a large share of the landed cost.
• Whether the cargo has one leg or two. A hub-port delivery is a single international movement. An island delivery is an international movement plus a domestic one, and the handover between them has to be designed rather than discovered.
• Which acceptance document the tender cites, and which edition. Indonesia runs the same two-layer structure as its neighbours: a works specification that names the grade for each pavement layer, and a national standard that defines what the grade must satisfy as a product. They are different documents and a contract has to cite the right one.
• Which climate zone the site is in. The archipelago straddles the equator, but the seasonal calendar is not the same everywhere, and in one part of the country it is inverted. A national delivery schedule built on the Java calendar is wrong in Maluku.
• What the import mechanism requires on your shipment date. Indonesia is one of the markets whose import policy framework has long contained an origin-country verification mechanism, which means that where a commodity is caught by it the requirement becomes incurable once the vessel has sailed. Which commodities are caught changes, and it has to be confirmed with a licensed Indonesian customs broker for the specific consignment and shipment date.

What this page does not tell you

It does not state that any port, terminal, berth, shipping service or route is currently open, operating to a schedule, equipped for this commodity or available for a particular cargo. Port and terminal geography is stable and publicly verifiable; operating status is neither, and it belongs to the freight forwarder who is accountable for it. No transit times, freight rates, vessel or vehicle capacities, duty rates, tax rates or prices appear anywhere on this page. No shipping line, terminal operator, haulier, forwarder, surveyor, refinery, product brand or client is named, and no presence, office, agency or shipping history in Indonesia is claimed. It does not state whether petroleum bitumen currently falls inside any Indonesian import approval, technical verification or mandatory standards scheme, because those lists are amended frequently and a supplier page is the wrong place to answer a question that has a current answer rather than a permanent one; the mechanism is described so that a buyer knows what to ask, and the scope question is directed to a licensed Indonesian customs broker. Nothing here is customs, regulatory, tax or legal advice.

The shape of the journey

For anywhere on Java, most of Sumatra and the immediate hinterland of a major port, an Indonesian delivery is a conventional one-leg import: ocean voyage, discharge, customs clearance, road haul. For everywhere else — and everywhere else is most of the country by area — the journey has a joint in the middle:

• Leg one, international. An ocean voyage from the load port to an Indonesian gateway, very commonly Tanjung Priok, sometimes Tanjung Perak or Belawan, and for a smaller lot almost always with a transhipment at a regional hub on the way. This leg produces a bill of lading, is governed by an international contract of carriage, and is the leg a normal export offer knows how to price.
• Leg two, domestic. A movement between Indonesian ports, on a domestic vessel, under a domestic contract of carriage, into a berth that may have very different handling from the one where the cargo arrived. This leg produces its own transport document, has its own liability regime, and is the leg most export offers pretend does not exist.

Between the two sits a handover, and it is the handover — not the ocean — where most Indonesian consignments go wrong.

Cabotage: why the international carrier usually cannot go the whole way

Indonesia applies a cabotage principle to domestic sea carriage. Law No. 17 of 2008 on Shipping, as subsequently amended, is the governing instrument, and the principle it establishes is that the carriage of goods and passengers between Indonesian ports is reserved for vessels flying the Indonesian flag, operated by a national shipping company and crewed accordingly. That law has been amended more than once, so the operative text is the current consolidated one rather than the 2008 original. The detail of scope, of any exceptions, and of how the rule is administered for a particular movement is a matter for the carrier, the forwarder and a licensed broker, and this page states nothing about the current position; what a buyer needs from it is the structural consequence, which is stable.

The consequence is this. The international service that carries your containers to Tanjung Priok is generally not in a position to carry them onward to Sorong, Ambon or Kupang. Somebody else does that, on a different vessel, under a different contract. So on an island delivery there are at least two carriers, and a single through document covering the whole journey is the exception rather than the rule. That single fact drives everything below: where the cargo clears customs, who insures the second leg, which Incoterms rule is honest, whose free time is running, and what packing can survive.

Where the cargo actually clears customs

There are two broad structures, and the difference is not cosmetic:

• Clear at the hub, then move domestically. The consignment is imported at the port of first arrival — declared, assessed, released — and from that moment it is domestic goods in free circulation. The second leg is then an ordinary internal movement with no further customs interest. This is the simpler structure and it is why so much cargo clears at Priok regardless of where it is going.
• Move under a customs procedure and clear at the destination. The consignment travels from the port of arrival to another Indonesian port under a customs procedure rather than as free goods, and the import formalities are completed at the far end. This keeps the tax point and the clearance at the destination, which can suit a buyer whose operation sits there, but it constrains the routing, ties the cargo to a nominated office and adds a procedure that has to be arranged rather than assumed.

Which of these applies, and which is permitted for a given commodity and route, is a question for a licensed Indonesian customs broker. What a seller needs to establish at the enquiry stage is much simpler: who is the importer of record, at which port, and on which document. If your buyer is clearing at Jakarta and the material is going to Sulawesi, the seller’s obligation almost certainly ends long before the material does, and the offer should say so in terms rather than leaving it to be inferred.

The Incoterms rule has to name a place that exists

Under Incoterms 2020, FAS, FOB, CFR and CIF are rules for sea and inland waterway transport and they name a port. FCA, CPT, CIP, DAP, DPU and DDP work with any mode and they name a place. Both families are live on this market, and three errors recur:

• Naming the country. CIF Indonesia is not a delivery term. It does not identify a port, so it does not identify where the seller’s cost and risk end, and in a country five thousand kilometres wide the ambiguity is not academic — it is most of the freight bill.
• Assuming the hub is the destination. CFR or CIF Tanjung Priok is a perfectly good term, and it ends at Tanjung Priok. If the project is in Papua, the buyer has just agreed to carry the entire second leg, the domestic handling and the inland haul. That may be exactly right — a domestic buyer is usually better placed to arrange domestic carriage than a foreign seller is — but it should be a decision, not a surprise.
• Quoting a D-term to an island without a way of performing it. DAP followed by a named place on an outer island is a real and coherent term. It also obliges the seller to procure a domestic sea leg it may not be able to contract directly, because of the flag question above, and to accept risk through handling it cannot supervise. DDP goes further and puts import clearance and charges on the seller, which in a market with a licensing and verification framework of this kind is a heavy undertaking and should never be agreed casually. If a seller quotes a D-term to an island, the buyer should ask how the second leg is being bought.

The honest structures for an island destination are usually one of two. Either the seller sells to the hub port on a sea rule and the buyer takes the cargo from there, with the handover written into the contract explicitly — who unstuffs, who stores, who books the domestic vessel, who pays if the cargo waits. Or the seller sells CIP or DAP to a named place and has already established with a forwarder that the domestic leg can actually be bought and insured. What does not work is a term chosen from habit and a destination described as a country.

The risk gap, and the insurance mistake that follows it

Under CFR and CIF, risk passes when the goods are loaded at the origin port. That is the rule, and it is not the problem. The problem is that in Indonesia the physical risk is concentrated after the point where risk has already passed: transhipment handling at a regional hub, discharge at the gateway, unstuffing and re-stuffing, a domestic loading operation, a second sea leg on a smaller vessel, discharge into a lighter or onto a beach landing, and a road leg on island roads. A cargo can cross an ocean untouched and be damaged four times in the last fortnight of its journey.

The insurance consequence is the single most commonly missed line on Indonesian business. A marine cargo policy written to the port of discharge stops at the port of discharge. It does not follow the drums onto a domestic vessel. The correct instruction is to arrange cover that runs to the final named place, expressly including the domestic inter-island leg, any transhipment, any lighterage or landing-craft discharge, and the inland haul, and to have the policy wording checked against the actual routing rather than against the destination country. Note also that the domestic carrier’s liability is limited by its own terms and is not cargo insurance; treating a transport document as if it were a policy is how a buyer discovers, after a loss, that nobody insured the leg where the loss happened.

Free time, detention and the clock nobody is watching

Container free time runs on the international carrier’s equipment, at the port of discharge. It does not follow the cargo. Two situations arise. If the boxes are unstuffed at the hub and the drums move domestically as break-bulk or in domestic containers, the international detention clock stops when the empties are returned — which means the unstuffing has to be organised promptly, and someone has to have arranged somewhere to put the drums. If the international boxes travel on domestically, where that is possible at all, the detention clock keeps running for the whole second leg and the return journey, and the exposure is of a completely different order. Establish which of these is happening before the cargo is booked, because it changes the cost structure more than a freight-rate negotiation will.

What the second leg does to the packing decision

This is where the packing is really decided, and it is why the answer for Indonesia is so consistently drums. Ask what the cargo has to survive after the gateway:

• Handling count. A one-leg cargo is handled at the load port and at the discharge port. A two-leg cargo is handled at the load port, at a transhipment hub, at the gateway, at the domestic loading berth, at the island berth, and again at the site. Every handling is an opportunity for a dented drum, a torn bag or a quantity argument.
• Shore equipment. Many eastern berths have limited shore handling. A geared vessel, a landing craft or lighterage to an anchorage is how a great deal of eastern Indonesian project cargo actually comes ashore, and a unit that a small crane or a few workers can move is worth more than a unit that needs a terminal.
• Lot size. An island project takes what the vessel and the site can absorb, which is frequently a fraction of a shipload. Drums divide; a bulk parcel does not.
• Time in the tropics. A transhipped international leg plus a domestic leg plus waiting at both ends means weeks of heat soak in an equatorial yard. That is not a product-degradation argument for a paving grade — nothing in the cycle approaches working temperature — but it is more than enough to keep a softer binder soft under stack pressure for a long time, which is precisely the condition in which bag packing fuses.

The site loading arithmetic still governs the international leg and should still be used to fix the drum count and the container count: new steel drums of 150 kg give 80 drums and 12 MT per 20 foot FCL; 180 kg drums give 80 drums and 14.4 MT; 185 kg drums give 80 drums and 14.8 MT; and 1 MT jumbo or poly bags give 20 bags and 20 MT. Use those to size the order and the boxes. Then ask the forwarder, separately, what the domestic leg can actually take, because a container equivalent is not a promise about a coaster, a barge or a landing craft. Specify drums as new steel drums rather than reconditioned; on a routing with this many handovers, drum condition is the argument most likely to start, and a reconditioned drum is the most common reason it starts.

Name the place so that it can be found

The practical instruction that follows from all of the above is unglamorous and it saves more money than any negotiation. Write the destination as island, then port of discharge, then site, and write the second leg into the contract as a separate matter with its own responsible party. An enquiry that says Indonesia, 60/70, 1,000 MT can be answered with a number, but the number will be wrong. An enquiry that says Sulawesi, discharge Makassar, site inland of Palopo, 1,000 MT in 180 kg new steel drums, buyer arranges the domestic leg from Makassar can be answered properly, and the answer will hold.

The two documents, and what each one decides

Every Southeast Asian market runs this structure, but the Indonesian pair is specific and worth naming:

• A works specification that decides how the pavement is built, which layer takes which binder, and whether modification is in scope. For national road and bridge works this is the general specification issued by the Directorate General of Highways — Direktorat Jenderal Bina Marga, within the ministry responsible for public works — whose asphalt pavement provisions sit in Division 6. It is revised periodically, and separate specifications apply to toll road concession work and to provincial and regency works.
• A binder acceptance document that decides what the grade must satisfy as a product. In Indonesia that is SNI 8135, the national specification for hard asphalt classified by penetration, issued through the national standards system.

The works specification names the grade. The acceptance document defines it. A contract line reading bitumen 60/70, ASTM D946 is a perfectly clear statement and it cites neither of the two documents that will be used to accept or reject the cargo in Indonesia. That is not a quality problem; it is an evidence problem, and it is cheap to fix before the batch is certified and expensive to fix after a cargo has crossed an ocean and a domestic sea leg.

SNI 8135 and the national standards system

Indonesian national standards carry the prefix SNI, for Standar Nasional Indonesia, and are established through the National Standardization Agency, Badan Standardisasi Nasional, generally referred to as BSN. Accreditation of the laboratories and certification bodies that operate around those standards sits with the National Accreditation Committee, Komite Akreditasi Nasional, or KAN. Two things follow that a supplier should know. First, an SNI is a standard, and a standard becoming mandatory for a given product is a separate act by the responsible ministry, evidenced differently — that is covered in the import and documents section below and is not the same question as whether a tender cites the standard. Second, SNI documents are revised and withdrawn like any other national standard, so the edition the tender incorporates governs and a remembered table does not.

On the substance, SNI 8135:2015 classifies hard asphalt by penetration class on the basis of the AASHTO M 20 penetration classification, and it carries a softening point requirement that the AASHTO document does not contain. That single addition tells you what the standard is for: it is a penetration classification adapted by a country whose pavements never get cold and frequently get hot and wet, and softening point is the line that speaks most directly to behaviour at service temperature. Two things follow for an exporter. First, the class list is inherited from the AASHTO basis, which means the five classes are 40–50, 60–70, 85–100, 120–150 and 200–300. Second, and this is the mismatch that catches more offers on this market than any other, 80–100 is not one of them. The commercial export band called 80/100 overlaps the 85–100 class but is not identical to it, and a batch certificate reading 81 or 84 dmm is a perfectly good 80/100 and outside the SNI class. Where a clause cites the class rather than a commercial grade name, offer 85/100 and say on the offer which band is being supplied. Take the numerical limits from the current edition of the standard itself; this page prints no SNI limit values, because a limit quoted from memory into a compliance box on an offer form is a false compliance claim sitting inside a contract.

The mix names an offer will meet, and why they matter to a supplier

Indonesian works specifications name mixes in a local vocabulary that does not travel, and an exporter who cannot read it will misjudge both the grade and the tonnage. The three families are:

• Laston, from lapis aspal beton, meaning asphalt concrete. It appears with layer suffixes: AC-WC for the wearing course, AC-BC for the binder course and AC-Base for the asphalt base. This is the dense-graded family used on the heavier-trafficked network, and the wearing course is where a modified binder is most likely to be required.
• Lataston, from lapis tipis aspal beton, and written in English practice as hot rolled sheet or HRS, appearing as HRS-WC and HRS-Base. This is a gap-graded mix with a comparatively rich binder content, valued for flexibility and durability on lower-volume and less heavily loaded roads.
• Latasir, from lapis tipis aspal pasir, a sand sheet mix for light-duty work.

The commercial point is not linguistic. A gap-graded, binder-rich mix consumes more binder per square metre of pavement than a dense-graded one, so the mix name changes the tonnage a given length of road will draw, and a supplier estimating demand from road kilometres without knowing the mix family is estimating badly. The layer also decides whether the product in question is straight-run paving grade at all or a modified binder, which is a different product with a different certificate, a different price basis and different storage behaviour.

The grade pattern, and where it comes from

Pen 60/70 is the working default across most of the Indonesian network, and it is what the majority of enquiries name. a softer band around Pen 80/100 appears in the works specification for particular applications and lighter-duty layers, including as the base binder for cutback prime and tack coat, and it should not be read as a mistake or as a buyer meaning 60/70. Check which band the clause actually cites, because the acceptance standard’s class is 85–100 while the export sheet in front of you probably says 80/100. The reasoning behind a softer grade being mainstream in a hot country is worth stating plainly, because it looks wrong from a Gulf or African perspective:

• Consistent heat is not extreme heat. Indonesia is maritime and heavily clouded, and afternoon convective cloud and rain arrive on most days over much of the archipelago. That caps the peak surface temperature a pavement reaches in a way that does not happen under a clear desert sky, where the surface runs far above air temperature for hours at a stretch.
• Durability under water competes with rut resistance, and frequently wins. A binder one band softer carries a thicker film around each aggregate particle, and film thickness is part of what stands between the mix and moisture-induced ravelling in a climate where the pavement is wet as a normal service condition.
• Where loading genuinely outruns that logic — toll and expressway wearing courses, port access, industrial hardstanding, bus and truck standing areas — Indonesian practice moves to modification rather than simply to a harder straight-run grade.

On concession and toll-road work designed to Superpave practice, a performance grade may be named instead, under AASHTO M320 or, where the mix is heavily loaded, an MSCR-based grade under AASHTO M332. A performance grade cannot be inferred from a penetration certificate: it requires dynamic shear rheometer testing on unaged and aged binder (AASHTO T315), pressure ageing vessel conditioning (AASHTO R28), bending beam rheometer testing of the aged residue (AASHTO T313), rotational viscosity (AASHTO T316) and, for MSCR, the multiple stress creep recovery test (AASHTO T350). Note the Indonesian shape of that requirement: the number after the hyphen is not the controlling parameter anywhere in this country. The high-temperature designation and the creep recovery behaviour are what the specification is actually policing, and an offer that answers an Indonesian performance-grade enquiry with low-temperature data has misread the market. See the performance grading guide for how the designations are constructed.

What an ASTM-shaped certificate does and does not cover here

Indonesia is kinder than some of its neighbours on this point, because a standard export panel already reports softening point, which is the line SNI 8135 adds to the AASHTO basis. The exposure is narrower and more specific:

• The limits are not the same as the data sheet ranges. A typical export data sheet range and a national standard limit are different things. Read the limit from the cited edition and check the offered range against it before contracting, not after the cargo has been certified.
• The ageing procedure has to match. The thin-film oven test (ASTM D1754) and the rolling thin-film oven test (ASTM D2872, AASHTO T240) are different exposures and their results are not interchangeable. Middle East export certificates carry TFOT by default. Establish which procedure the cited edition controls and add it to the test schedule before the batch is certified.
• The mix-level properties are not on it at all. Moisture sensitivity, retained stability, adhesion between binder and aggregate: these are controlled at mix design level and by the works specification, and a binder certificate evidences none of them.
• Modified binder needs its own lines. Where a wearing course calls for modification, elastic recovery, storage stability and the modification type belong on the certificate. The word polymer is not a specification.

Five questions to put to an Indonesian tender before quoting

• Which acceptance document, and which edition? SNI 8135 by reference, an ASTM or AASHTO designation directly, or a concession specification of its own. Ask for the clause rather than the grade name.
• Which works specification, and which layer? The Bina Marga general specification for national works, a toll concession document, or a provincial specification — and whether the binder is for AC-WC, AC-BC, AC-Base, an HRS layer or a surface treatment.
• Penetration or performance grade? They are different measuring systems and one cannot be derived from the other.
• Which ageing procedure is controlled, and is a softening point limit attached? These are the two lines most likely to differ from an export data sheet.
• Is modification in scope, and is asbuton named in the same clause? If natural asphalt appears, read the next section before answering, because the question the clause is really asking may not be a binder supply question at all.

What it is

Buton is an island off the south-eastern peninsula of Sulawesi, in the province of Southeast Sulawesi, near the town of Baubau. It carries deposits of natural bitumen impregnated in limestone rock, known in Indonesia as asbuton, a contraction of aspal Buton. The deposits have been worked commercially since the colonial period, which makes this an established extractive activity rather than a recent discovery.

The single physical fact that governs every commercial consequence is this: the binder is not free. It sits inside a mineral matrix. What is mined is rock with bitumen in it, the bitumen content varies between deposits and between processed products, and the delivered mass is predominantly mineral. So the natural comparison an importer reaches for — a tonne of asbuton against a tonne of paving grade — is the wrong comparison, and any discussion that treats the two as interchangeable by weight has gone wrong in its first line.

The forms it appears in

• Crushed or granular asbuton. The rock is crushed and graded, and added to a hot mix so that its mineral fraction is accounted for in the aggregate gradation and the filler while its bitumen fraction contributes to the total binder. The mix design changes; the mix still needs a base binder.
• Pre-blended asbuton. The rock is combined with a softening agent or with petroleum binder before use, producing a material that is easier to handle and dose at the plant.
• Extracted asbuton. The bitumen is separated from the mineral by solvent extraction and used as a binder or, more usually, as a modifier blended into petroleum bitumen. Extraction needs solvent and a plant, which is why this is the smaller and more expensive stream.

Where it shows up in a tender

The Bina Marga general specification contains provisions for asbuton-containing mixes and for asbuton-modified binder, and asbuton products are covered by their own SNI documents. Government policy has repeatedly encouraged domestic use of the resource, which is why the subject recurs in Indonesian road procurement discussion more often than a foreign supplier expects. As with everything else in the specification section, take the designation, the form and the acceptance table from the tender document rather than from a general description, because asbuton is a family of products rather than one product and the clauses differ.

What it means for an importer, honestly

• It usually does not displace petroleum binder one for one. In the granular and pre-blended routes a base binder is still required and the asbuton is functioning as an additive and a modifier that changes the mix design. Where a tender names asbuton, the useful question is what binder the same clause requires alongside it, in what proportion, and to which acceptance document. That is the part an importer can actually quote.
• It has its own two-leg logistics problem. The material comes from a remote eastern island and has to reach a plant. For a Java or Sumatra project that is a domestic sea leg running in the opposite direction to the imported cargo, with the same handling, packing and season constraints described elsewhere on this page. A domestic resource on an outer island is not automatically a cheap resource at a western plant.
• It changes the mix design, not the certificate an exporter can offer. A supplier of petroleum paving grade can certify the paving grade and nothing else. Do not offer opinions, equivalences or performance claims about the asbuton fraction, and do not let a mix-level benefit be written into a binder supply contract.
• It is a genuine market feature and not a threat to state a position on. This page gives no production tonnage, no reserve figure, no price, no market share and no view on whether domestic natural asphalt is displacing imported binder. Those numbers move, they are contested, and a supplier page is the wrong place to assert them.

The practical posture for an exporter is straightforward. Know what asbuton is, be able to explain why a tonne of it is not a tonne of binder, ask what the clause requires alongside it, and quote the part of the requirement you can actually supply and certify.

• Bitumen supply to Thailand — a mature market with its own refining capacity, where imported material competes against a known domestic benchmark rather than filling a gap
• Bitumen supply to Myanmar — the most compressed construction season in the region, and the procurement timing problem that follows from it