Navigating global tariff structures and customs classifications is critical for the procurement of Sodium Hydrosulfite. This section decodes the regulatory frameworks, international codes, and duties governing global shipping.
Sodium Hydrosulfite, commonly known as Sodium Dithionite, is classifiable under the Harmonized Commodity Description and Coding System (HS System) within Chapter 28 (Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes).
The standard global Harmonized System code for Sodium Hydrosulfite is 2831.10.10. This code indicates chemical compositions falling specifically under dithionites and sulfoxylates of sodium. Depending on the importing country's custom adaptations, the code expands to detailed tariff suffixes:
| Parameters | Standard Classifications | Compliance Significance |
|---|---|---|
| Chemical Name | Sodium Dithionite / Sodium Hydrosulfite | Identifies substance structure for customs checks |
| CAS Registry Number | 7775-14-6 | Universal identification for GHS and chemical inventories |
| HS Code (Global) | 2831.10.10 | Tariff assessment, regulatory tracking, and anti-dumping checks |
| UN Transport Class | UN 1384 (Class 4.2 / PG II) | Self-heating substance; safety and hazardous packaging compliance |
| IMDG Classification | Dangerous Goods Class 4.2 | Maritime safety regulations regarding heat and water exposure |
Crucial Compliance Note: Because Sodium Hydrosulfite is classified under UN 1384 (Class 4.2, Self-Heating Substances), failure to declare the correct HS Code combined with appropriate hazardous class codes can lead to vessel boarding rejection, cargo seizures, or heavy penalties by port authorities globally.
As a major player in the global chemical intermediate market, China provides unparalleled supply chain integrations. Shandong Pulisi Chemical Co., Ltd. leverages this ecosystem to deliver high-purity chemicals at competitive price points.
Using state-of-the-art Sodium Formate processes, we bypass outdated, high-pollution methods. This ensures consistent assay percentages exceeding 85% or 90% depending on industrial grading needs.
We operate modern transit warehousing near key logistics hubs, including Qingdao Port, Tianjin Port, and Xinjiang border ports (Alashankou, Khorgos). This location strategy minimizes domestic transit times and controls moisture exposure risk.
We possess full ISO9001:2015 Quality Management certifications, German BV validations, K-REACH clearances, and Halal/Kosher standard certifications. This ensures rapid customs clearance globally.
Purchasing agents often struggle with the volatile pricing of Sodium Dithionite. The pricelist is driven by three main factors: raw material costs (sulfur dioxide, sodium hydroxide, and sodium formate), domestic energy and environmental regulatory compliance costs within China, and international container freight volatility. By partnering directly with an asset-heavy manufacturer like Shandong Pulisi (Stock Code: 307785), you secure pricing stability, direct ex-factory cost structures, and flexible payment terms (T/T, L/C, D/P, O/A).
Shandong Pulisi Chemical Co., Ltd. was established in 2006 (Stock Code: 307785). The company focuses on petrochemicals, mining chemicals, feed chemicals, and pharmaceutical chemicals. At present, the company has established long-term and stable partnerships with Fortune Global 500 companies such as China National Petroleum Corporation (CNPC) and Saint-Gobain. We always take customer demand as the core orientation and provide tailored solutions to help customers strengthen their market competitiveness.
The company has passed ISO9001:2015 Quality Management System Certification and German BV Certification, and has been awarded multiple honors such as Foreign-Oriented Economic Enterprise, Alibaba Demonstration Base, and Contribution Enterprise. In 2023, the company successfully went public with stock code: 307785.
Meanwhile, the company has established mature warehousing and distribution systems at key logistics hubs, including Qingdao Port, Tianjin Port, and Xinjiang border ports (Alashankou, Khorgos). We are able to provide flexible supply solutions according to customer needs to ensure timely order delivery. No matter where customers are located, Shandong Pulisi Chemical will safeguard their business development with professional service systems and efficient response capabilities.
Strict Statement: Shandong Pulisi has not established branches outside of Shandong Province. If there is any act of impersonating Shandong Pulisi, our company will reserve the right to pursue legal responsibilities.
Our operations conform to strict international benchmarks, validated by global third-party testing organizations including SGS and BV.
Sodium Hydrosulfite serves as a crucial reducing agent, de-colorizer, and stabilizer across multiple global sectors. Our products are optimized for a wide range of localized industrial application scenarios.
The global demand for high-performance reducing agents is transitioning toward low-odor, high-thermal-stability variations. In textile dyeing centers in Southeast Asia (such as Vietnam and Bangladesh) and pulp bleaching installations in South America, buyers require customized packaging configurations (e.g., 50kg steel drums, 100kg drums, or bulk containers with specialized inner nitrogen bagging) to prevent premature oxidation caused by high ambient humidity.
Furthermore, structural upgrades in custom trade corridors require dynamic data exchange. We align with foreign customs clearance mechanisms, providing localized trade papers including GHS Safety Data Sheets (SDS) in multiple languages (Spanish, Portuguese, Russian, and Arabic), keeping transit smooth through crucial ports like Vladivostok, Rotterdam, and Houston.
Shandong Pulisi regularly participates in international chemical showcases. We interact directly with global buyers to discuss custom specifications, supply chain integrations, and long-term contracts.








We maintain strong technical and trade collaborations with leading chemical enterprises and logistics providers worldwide.










Common inquiries regarding custom classifications, pricing structures, shipping procedures, and regulatory certifications.
Of course you can. Just send us your logo design and brand standards. We provide customized labels and custom drums/packaging options to ensure local brand identification in your target market.
If you are a small retailer, regional distributor, or scaling entrepreneur, we would absolutely love to grow with you. We look forward to building a long term relationship with you.
We always put our customers' interests first. Prices are negotiable under different volume conditions, packaging parameters, and payment structures. We guarantee that you will get the most competitive price by ordering directly from our manufacturing facility.
Yes, we provide free samples for quality verification and chemical compatibility testing. Contact our sales representatives to coordinate delivery details via courier services.
Yes, we maintain prompt delivery cycles. Our company has been specializing in this field for many years. We run an optimized logistics network with warehousing at key shipping channels (Qingdao Port, Tianjin Port) to guarantee on-time shipping and reliable freight delivery.
We support multiple payment methods, including T/T (Telegraphic Transfer), L/C (Letter of Credit) at sight, D/P (Documents Against Payment), and O/A (Open Account) for buyers with established credit history. We accept recognized third-party trade guarantees.
Of course. You are welcome to visit our company in Zibo, Shandong Province, China. It is a 1.5-hour drive from Jinan Airport or 2 hours by high-speed rail from Qingdao. We will coordinate transport and local accommodation.
Submit an inquiry directly through our portal or reach out via email to our designated sales representative. We will supply you with a formal Proforma Invoice, structural specifications sheets, and guide you through the custom shipping documentation steps.