Caustic Soda Supplier Angola: Sodium Hydroxide Flakes & Pearls (Soda Cáustica)
Caustic soda supplier Angola – 25 kg bags of NaOH flakes on pallets ready for shipment to Luanda
Table of Content
B2B supply · reviewed

Caustic Soda Supplier Angola — Luanda & Lobito
for Importers, Distributors and Traders

As a caustic soda supplier Angola buyers can contract directly, SUHA International Trading exports sodium hydroxide flakes NaOH 98% and 99%, pearls 99% and liquid caustic soda (soda cáustica) to Angola in full container loads from Mersin, Türkiye and Jebel Ali, UAE. Cargo reaches Luanda in about 17–23 days on a route clear of the Red Sea and the Strait of Hormuz, with the batch COA, SDS and Class 8 documents your importer of record needs.

Loading origins
Mersin (TR) · Jebel Ali (AE)
Incoterms
FOB · CFR · CIF · DAP
Packing
25 kg PP bags · 1 MT FIBC
Payment
L/C at sight · T/T
HS / CAS
2815.11 · 1310-73-2
Dangerous goods
UN 1823 · Class 8
  • 2 originsMersin · Jebel Ali
  • 17–23 dMersin to Luanda
  • 1 FCLMinimum order
  • 24 hQuotation turnaround
Short answer

Caustic soda supplier Angola: who supplies NaOH, and how

SUHA International Trading exports caustic soda (sodium hydroxide, NaOH, soda cáustica) to Angola from offices in Dubai and Ankara. We ship flakes 98% and 99%, pearls 99% and liquid caustic soda 30–50% in full container loads to Luanda and Lobito, on FOB, CFR, CIF or DAP terms.

Every shipment carries a certificate of analysis for its own batch, a safety data sheet and the IMDG Dangerous Goods Declaration for UN 1823, Class 8. The Angolan importer must be registered in the REI and license each import before shipment.

Local production and imports. Angola’s first chlor-alkali plant, Calombolo Química in Baía Farta, Benguela, started operating on 17 September 2026, producing caustic soda, sodium hypochlorite and hydrochloric acid. The market remains largely import-led: China, Poland and Portugal have been the main sources of imported caustic soda by value. For importers and distributors serving Luanda and the north, and for buyers who need 99% pearls, 25 kg bagged flakes or term contracts, a caustic soda supplier Angola importers can reach by sea remains part of the supply mix.

Grade + tonnage + port + Incoterm → firm quotation within 24 hours
Looking for a price? Export levels are published monthly on the caustic soda price today page, the landed CIF level for Luanda sits on the caustic soda price by country page, and grade-by-grade detail is on the caustic soda flakes price page.
B2B supply

Caustic soda supplier Angola for importers, distributors, traders and manufacturers

Wholesale and bulk caustic soda buyers in Angola work with us in different ways. Choose your role to see what we arrange for you.

Importers and customs brokers

You hold the REI registration and the import licence; we make sure every document matches it.

  • Proforma invoice issued in the format your licence application needs, with HS 2815.11 or 2815.12
  • Documents in the name of the importer of record: invoice, packing list, B/L, certificate of origin, COA, SDS, DG declaration
  • L/C at sight or T/T, agreed with your bank before the order is confirmed so the BNA foreign-exchange step does not stall the shipment
  • CIF Luanda or Lobito, or FOB if your forwarder books the freight
Applications

Caustic soda uses in Angola, and which NaOH grade to buy

Each card names the job caustic soda does, the grade that suits it, and the parameter on the technical data sheet that matters most for that use. Gold chips are the usual choice; grey chips also work.

Soap and detergent

Saponifies palm oil, other vegetable oils and tallow into bar and laundry soap, and neutralises LABSA into detergent paste — one of the steadiest buyers of bagged flakes. See also soap and detergent manufacturing.

Flakes 98%Liquid

TDS parameter to watch: Fe and NaCl — iron discolours white soap, excess salt changes texture.

Oil refining

Caustic washing removes hydrogen sulphide, mercaptans and naphthenic acids from fuels and LPG. Demand grows with Angola’s new capacity: the Cabinda refinery began production in March 2026 and the Lobito refinery is under construction. See also caustic soda in the petroleum industry.

Flakes 98%Liquid

TDS parameter to watch: NaCl — chloride drives corrosion in refinery units.

Water treatment

Raises pH after alum or ferric coagulation, controls corrosion in distribution mains, precipitates heavy metals from effluent and regenerates ion-exchange resins.

Pearls 99%Liquid

TDS parameter to watch: Heavy metals and Fe — treated water must stay within drinking-water limits.

Mining and minerals

pH control in flotation and leach circuits, reagent make-up and equipment cleaning. Through Lobito, caustic soda also reaches copper and cobalt operations in the DR Congo and Zambia.

Flakes 98%Pearls 99%

TDS parameter to watch: Na₂CO₃ and insolubles — they affect reagent strength and dosing lines.

Food and beverage

Bottle washing with hot dilute caustic in breweries and soft-drink plants, clean-in-place of tanks and lines, and peeling of fruit and vegetables.

Pearls 99%Flakes 99%

TDS parameter to watch: Heavy metals — food-contact use needs a food-grade certificate; ask for it with the quote.

Bleach and chemicals

Reacting caustic soda with chlorine makes sodium hypochlorite (household bleach); caustic is also used to produce sodium salts and to neutralise acids. See also sodium hypochlorite.

Flakes 98%Liquid

TDS parameter to watch: Fe and other metals — they speed up hypochlorite decomposition and shorten shelf life.

Textiles

Scouring removes waxes and pectins from cotton; mercerising under tension adds strength, lustre and dye uptake.

Flakes 98%Liquid

TDS parameter to watch: Fe — iron leaves rust spots on fabric.

Pulp and paper

Part of the white liquor that cooks wood chips in kraft pulping, and the alkaline extraction stage of pulp bleaching.

Flakes 98%Liquid

TDS parameter to watch: Na₂CO₃ and NaCl — they lower active alkali and add chloride to the recovery cycle.

Metal processing

Hot alkaline degreasing before painting or plating, aluminium etching before anodising, and paint stripping.

Flakes 98%Pearls 99%

TDS parameter to watch: Na₂CO₃ — it reduces bath strength over time.

Sugar processing

Cleaning and descaling of evaporators and heat exchangers between campaigns, and pH adjustment of cane juice.

Flakes 98%Liquid

TDS parameter to watch: Fe and insolubles — residue on heat-transfer surfaces.

Biodiesel

Base catalyst for the transesterification of vegetable oils, used dissolved in methanol.

Pearls 99%Flakes 99%

TDS parameter to watch: Assay and Na₂CO₃ — water and carbonate cut catalyst activity and form soaps.

Cleaning products

Industrial and institutional cleaners, oven and drain cleaners — often repacked by distributors from 25 kg bags into retail sizes. See also safe storage and handling.

Pearls 99%Flakes 98%

TDS parameter to watch: Dust and flowability — pearls repack cleanly.

Technical data sheets

Caustic soda flakes and pearls for Angola: TDS analysis

Our two technical data sheets, read line by line from a buyer’s point of view. The flakes sheet reports test results for a production batch; the pearls sheet states specification limits. Your shipment’s own COA is the binding document.

Caustic soda flakes

Solid NaOH · batch test results
98%
Caustic soda flakes — results on the technical data sheet, and what they mean for the buyer
ParameterTDS resultWhat it tells you
NaOH (assay)98 ±1 % w/wThe active alkali. Contract on 98.0% minimum and check it on every batch COA.
Sodium carbonate, Na₂CO₃0.43 % w/wForms when NaOH meets air; a low figure shows fresh, well-sealed product.
Sodium chloride, NaCl0.0085 % w/w (85 ppm)Very low chloride, typical of membrane-process caustic — matters for refinery, boiler and stainless-steel service.
Iron, Fe10 ppmLow iron prevents discolouration in white soap, textiles and bleach.
Sodium sulphate, Na₂SO₄0.0047 % w/wTrace level; no effect in normal industrial use.
Silica, SiO₂0.0019 % w/wTrace level; relevant to boiler-water users.
Alumina, Al₂O₃3 ppm maxTrace level.
Heavy metals as Pb2 ppm maxLow heavy metals support water-treatment and food-contact applications.
Water-insoluble matter0 % w/wNo residue to block dosing lines or filters.
  • Chloride at 85 ppm and iron at 10 ppm put these flakes in the low-impurity class buyers ask for in refining, textiles and bleach making.
  • Zero insolubles and trace silica, alumina and heavy metals suit dosing systems and water treatment.
  • Order on a 98.0% minimum assay and check it on the batch COA.

Caustic soda pearls

Solid NaOH · specification limits
99%
Caustic soda pearls — specification on the technical data sheet, and what it means for the buyer
ParameterTDS valueWhat it tells you
NaOH (purity)99.0 % minHigher assay than flakes; less material per tonne of active NaOH.
Sodium carbonate, Na₂CO₃0.8 % maxSpecification ceiling; the batch COA shows the actual figure.
Sodium chloride, NaCl0.05 % maxLow-chloride grade suitable for most process and treatment uses.
Iron oxide, Fe₂O₃50 ppm maxIron ceiling for colour-sensitive uses.
Density at 20 °C2.13 g/cm³Standard for solid NaOH; free-flowing beads fill bags and hoppers evenly.
Dissolution, 100 g in 100 ml water at 25 °C22 secondsFast dissolution — the main reason to choose pearls for automated make-up.
Melting point320–325 °CPure NaOH melts at about 318 °C; relevant only to fused-caustic users.
  • 99.0% minimum assay with chloride capped at 0.05% — a high-purity grade.
  • Dissolves in about 22 seconds under the stated test, which is why pearls suit automated make-up and dosing.
  • Free-flowing beads raise little dust, an advantage in food, water and repacking operations.
Container loading for pearls stated on the TDS, 20ft FCL
PackingWith palletsWithout pallets
25 kg PP bags25 MT28 MT
1,000 kg jumbo bags20 MT20 MT
1,200 kg jumbo bags24 MT24 MT

Container payload is limited by weight, and some roads from Luanda and Lobito enforce axle limits below the container maximum — tell us the inland destination and we load to suit it.

Logistics & compliance

Importing sodium hydroxide into Angola: ports, licence and documents

Cargo loads at Mersin and leaves the Mediterranean through the Strait of Gibraltar, then runs down the West African coast — a route clear of both the Red Sea and the Strait of Hormuz.

Discharge ports for caustic soda in Angola
PortServesUsual originTransit
LuandaLuanda, Bengo, Cuanza Norte and the northern provincesMersin17–23 days
LobitoBenguela, Huambo, Bié, the central and southern provinces, and the Lobito Corridor to the DR Congo and ZambiaMersinon request
Register as an importer (REI)Angolan importers must be registered in the Register of Exporters and Importers. Registration is valid for five years and gives access to the foreign trade platform.
License the import before shipmentUnder Presidential Decree 126/20, imports are licensed on the foreign trade platform before the goods ship; a licence is valid for 120 days. Send us the licence reference so the documents match it.
Arrange the foreign-exchange paymentForeign-currency payment is settled under National Bank of Angola (BNA) rules. Agree L/C or T/T with your bank before the order is confirmed.
Classify and clearFlakes and pearls are HS 2815.11, liquid is HS 2815.12. Angola’s standard VAT (IVA) is 14%; confirm the duty for your full tariff line with your customs broker.
Receive the document setCommercial invoice, packing list, bill of lading, certificate of origin, COA, safety data sheet and the IMDG Dangerous Goods Declaration for UN 1823, Class 8.
Trade terms

Trade terms from your caustic soda supplier Angola desk

Products
Flakes 98% · 99% · pearls 99% · liquid 30–50%
Minimum order
1 FCL, 20ft or 40ft
Packing
25 kg PP + PE liner · 1 MT FIBC · ISO tank
Incoterms
FOB · CFR · CIF · DAP
Payment
L/C at sight · T/T
Inspection
SGS · Bureau Veritas · Cotecna
Documents
COA · SDS · CO · B/L · DGD
Quotation
Firm within 24 hours, valid 7 days

Handling

  • Goggles or face shield, alkali-resistant gloves and protective clothing
  • Always add caustic to water, never water to caustic — dissolving releases heat
  • Eyewash and safety shower near the dissolving point

Storage in a hot, humid climate

  • Bags sealed, dry and off the floor on pallets in a ventilated store
  • Away from acids, water and aluminium, zinc or tin
  • First in, first out — moisture and CO₂ slowly raise carbonate

Full guidance: how to store caustic soda safely and how to check caustic soda quality.

Ordering

How to order bulk caustic soda for Angola: six lines, one firm quotation

GradeFlakes 98% or 99%, pearls 99% or liquid — plus any limit your specification names, such as iron or chloride.
QuantityContainers per shipment and expected annual volume.
PortLuanda or Lobito, and the inland destination if you want a delivered price.
IncotermFOB, CFR, CIF or DAP.
Packing25 kg bags palletised or loose, 1 MT jumbo bags, neutral or private label.
Licence and paymentYour import licence reference and preferred terms — L/C at sight or T/T.
Common questions

Caustic soda supplier Angola — FAQ

SUHA International Trading is a caustic soda supplier Angola importers work with directly: we supply caustic soda (sodium hydroxide) to importers, distributors, traders and manufacturers in Angola from two loading ports, Mersin in Türkiye and Jebel Ali in the UAE. We ship flakes 98% and 99%, pearls 99% and liquid caustic soda, in full container loads to Luanda or Lobito, with the full dangerous-goods document set.

Yes, since September 2026. Angola’s first chlor-alkali plant, Calombolo Química in Baía Farta, Benguela province, started operating on 17 September 2026 and produces caustic soda, sodium hypochlorite and hydrochloric acid. Before that the country relied entirely on imports, mainly from China, Poland and Portugal, and imported flakes and pearls still serve much of the market, especially Luanda and the north.

In Angola caustic soda is called soda cáustica, and sodium hydroxide is hidróxido de sódio. Flakes are sold as soda cáustica em escamas and pearls as soda cáustica em pérolas. On customs and safety documents the product appears as sodium hydroxide, UN 1823, HS 2815.11.

The price depends on grade, packing, volume, Incoterm and the discharge port, and it moves monthly. Current export levels are published on the caustic soda price today page, the landed CIF level for Luanda is listed on the caustic soda price by country page, and grade-by-grade detail is on the caustic soda flakes price page. For a firm quotation, send grade, tonnage and port.

Caustic soda is a strong alkali used to make soap and detergents, refine petroleum products, treat drinking water and wastewater, process minerals, clean bottles and food equipment, scour and mercerise cotton, pulp wood, degrease metals and produce chemicals such as sodium hypochlorite bleach. Each use is explained in the applications section of this page and in our guides, for example caustic soda in soap making and caustic soda for water treatment.

Both are solid sodium hydroxide. Flakes are thin irregular pieces, here 98% NaOH, and are the standard grade for soap making, refinery washing and general industry. Pearls are small spheres, here 99% NaOH, that flow freely, dose accurately and raise little dust, which suits automated dosing, water treatment and food processing. They ship in the same 25 kg bags and the same containers.

Yes. Caustic soda, sodium hydroxide, NaOH and lye all name the same compound, CAS 1310-73-2. Caustic soda is the industrial trade name, sodium hydroxide is the chemical name on documents and safety data sheets, and lye is the common name in soap making.

Solid caustic soda, including flakes and pearls, is HS 2815.11. Caustic soda in aqueous solution (liquid caustic soda) is HS 2815.12. Angola adds national digits after the six-digit heading, so confirm the full tariff line with your customs broker.

Yes. Under Presidential Decree 126/20 the importer must be registered in the Register of Exporters and Importers (REI), which is valid for five years, and must license each import on the foreign trade platform before the goods ship; a licence is valid for 120 days. Payment in foreign currency is settled under National Bank of Angola rules. Caustic soda is a Class 8 dangerous good, so confirm any product-specific requirement with your broker before opening a letter of credit.

A commercial invoice, packing list, bill of lading, certificate of origin, certificate of analysis for the batch, safety data sheet and the IMDG Dangerous Goods Declaration for UN 1823, Class 8. Third-party inspection by SGS, Bureau Veritas or Cotecna at the loading port, and legalised documents, are arranged when the bank or the customs broker asks for them.

Luanda is the main port for Luanda and the northern provinces. Lobito serves Benguela, Huambo and the central and southern provinces, and it is the sea gateway of the Lobito Corridor railway towards the DR Congo and Zambia copper belt. We ship to either; choose the port closest to the final warehouse or plant.

Allow 17–23 days from Mersin to Luanda, port to port. The route leaves the Mediterranean through the Strait of Gibraltar and runs down the West African coast, so it avoids both the Red Sea and the Strait of Hormuz.

One full container load, in a 20ft or 40ft container. In 25 kg bags a 20ft container carries about 25 MT of flakes or pearls on pallets; liquid caustic soda ships one ISO tank at a time. Mixed loads of flakes and pearls in one container can be arranged.

Keep bags sealed, dry and off the floor on pallets in a ventilated store, away from acids, water and aluminium, zinc or tin. Sodium hydroxide absorbs moisture and carbon dioxide from the air, which raises the sodium carbonate content and lowers the assay, so use stock first in, first out. Full guidance is in how to store caustic soda safely.

Yes. Cargo can discharge at Lobito and move inland on the Lobito Corridor towards the copper and cobalt mines of the DR Congo and Zambia, where caustic soda is used in mineral processing. See caustic soda supply in the DR Congo and caustic soda in Zambia.

Ask for the certificate of analysis of the actual batch and compare NaOH assay, sodium carbonate, sodium chloride and iron against the technical data sheet on this page. For high-value orders, add SGS, Bureau Veritas or Cotecna inspection at the loading port before the container is sealed. Checks on arrival are described in how to check caustic soda quality.

References

Published by the SUHA International Trading export desk, Dubai and Ankara. Reviewed .

Need a caustic soda supplier Angola can rely on? Send the port and the grade.

Grade, tonnage, Luanda or Lobito, and your Incoterm — a firm quotation comes back within one business day, with the full Class 8 document set prepared for your importer of record.