Sodium hydroxide · NaOH 98% / 99% · HS 2815.11 · UN 1823 Class 8
Caustic Soda Flakes, Supplied Plant-Direct from Inner Mongolia
We are the export division of Inner Mongolia Tianshun Alkali Industry Co., Ltd. — a licensed caustic soda flakes plant in the Xilaifeng Industrial Park, Wuhai, Inner Mongolia, a national chlor-alkali industry base. The plant exports under its own import & export rights, so you contract directly with the manufacturer: 99% min flake caustic soda in 25 kg bags and 1 MT jumbo bags, shipped to importers and distributors worldwide.
Replies within one working day · English & Chinese

What we supply
One product, fully documented, in the packing your market expects.
Caustic Soda Flakes 99% Min
Our main production grade: white flakes with a minimum 99.0% NaOH content, for buyers who work to a tight specification. Supplied in 25 kg bags or 1 MT jumbo bags.
Caustic Soda Flakes 98% Min
Available on request for general industrial use — water treatment, detergents and textile processing. Same packing options, same documentation.
Export Packing & Loading
25 kg PP/PE bags in loose loading or on pallets, 1 MT jumbo bags with lifting loops, plus bag marking and private-label options for confirmed orders.
Why buyers work with us
You deal with the manufacturer
Our company operates the plant and exports under its own import & export rights. Quotation, production, packing, loading and documents are handled by one team — pricing from the source, no chain of intermediaries.
Documented quality
Every batch ships with a Certificate of Analysis, and our flakes passed an independent CMA/CNAS-accredited laboratory test in March 2026 — NaOH 99.1%, well inside GB/T 209-2018 limits. MSDS and the full document set travel with every shipment.
Packing built for the sea
Bags specified for a corrosive, hygroscopic product: PP/PE laminate, with loading plans kept inside the container weight limit for your destination road rules.
One desk, one reply
Enquiries are handled by the same export desk from quotation to bill of lading, with a reply within one working day — no handovers between offices.
A licensed, verifiable producer
Our key registrations are public record — you can verify them with the issuing authorities before you place an order.
| Registered name | Inner Mongolia Tianshun Alkali Industry Co., Ltd. |
| Unified Social Credit Code | 91150303MA0MYE6Q1E |
| Established | 20 July 2016 · registered capital RMB 20 million |
| Safety Production Licence | (Meng) WH AnXuZheng [2025] No. 001209 — sodium hydroxide, 100,000 MT/year |
| Food Additive Production Licence | SC20115030302021 — sodium hydroxide, valid to 30 May 2028 |
| Export | Self-operated import & export rights — the plant itself is the exporter of record |
How an order runs
- Send your enquiry. Grade, quantity, packing preference and destination port are all we need to start.
- We confirm the offer. Indicative price, packing options, lead time and the specification sheet or COA sample.
- You review and confirm. Sample testing, specification sign-off and commercial terms.
- Order and payment. Proforma invoice with banking details, payment terms as agreed for the order.
- Production, loading and documents. Loading photos, container and seal numbers, then the full document set by courier and email.
Worldwide supply
We quote and ship to importers, distributors and industrial end users worldwide, by full container load. Send us your destination port and we confirm freight and lead time together with the offer.
Shipping from Tianjin (Xingang) — the export port for the Inner Mongolia chlor-alkali cluster. FOB as standard; CFR and CIF quoted on request.
Buyers by industry
Every industry buys the same NaOH, but specifies it differently. Practical guidance per industry:
Water treatment ·
Soap and detergents ·
Textile processing ·
Pulp and paper ·
Alumina and metals ·
Petroleum refining
Plus buyer guides in Insights:
storage and handling, flakes vs pearls vs liquid, and receiving checks.
Frequently asked questions
Are you the manufacturer or a trading company?
We are the manufacturer. Inner Mongolia Tianshun Alkali Industry Co., Ltd. operates the caustic soda flakes plant in Wuhai and exports under its own import and export rights, so you contract directly with the producer. Our registrations are public record and listed on this page.
What is the minimum order quantity?
Our standard minimum order is one 20-foot container, which is about 25 MT in 25 kg bags. Smaller trial quantities can be discussed if you are testing the market.
Can you send a sample before I order?
Yes. Small samples for laboratory testing can be arranged, normally with the courier cost paid by the buyer.
Which documents come with a shipment?
Certificate of Analysis for the batch, MSDS, commercial invoice, packing list, bill of lading and a certificate of origin (Form E where applicable). Third-party inspection can be arranged on request.
Which Incoterms do you quote?
FOB Tianjin (Xingang) is our standard basis. We also quote CFR and CIF to your destination port on request.
Request a quotation
Send us your required grade, quantity and destination port. We reply with an indicative price, packing options and a specification sheet — normally within one working day.