June 8, 2026
Q3 2026 Inventory Confirmed for Superior & First Grade
Ample spot stock available — MOQ 1 MT, FOB/CIF from Qingdao and Tianjin ports.
Superior Grade ≥99% · First Grade ≥98.5%. UN 1500 Class 5.1 oxidizer with full DG export documentation. Serving concrete antifreeze, metal anti-rust, textile bleaching and fine chemical industries worldwide.
Integrated marine chemical enterprise with global supply chain capabilities
Based in Weifang Binhai with abundant brine resources and a full closed-loop marine chemical industrial chain.
Rigorous batch inspection with consistent purity and uniform appearance across every shipment.
Exported to Southeast Asia, Middle East, Central Asia, South Africa, Europe and other regions worldwide.
UN 1500 Class 5.1 commodity — no special DG permits. Ideal for trial orders, LCL and full container shipments.
Shandong Guowei Chemical Co., Ltd. is an integrated marine chemical enterprise covering production, sales, warehousing, technical services and import & export trade — leveraging years of cross-border trade experience to serve global markets.
Our sodium nitrite portfolio includes Superior and First grades in white crystalline form — widely applied in concrete antifreeze, metal anti-rust, textile bleaching, pharmaceutical diazotization and fine chemical synthesis.
Learn More About Us
Two main grades — flexible selection based on climate, application and packaging requirements.
High-purity grade for fine chemical synthesis, precision metal treatment and pharmaceutical diazotization.
Learn More
Economical bulk grade for concrete antifreeze, metal anti-rust and conventional textile bleaching.
Learn MoreCustom packaging & food-grade available upon request · View full product details →
Industry updates and company announcements.
Ample spot stock available — MOQ 1 MT, FOB/CIF from Qingdao and Tianjin ports.
MSDS, COA and DG packing certificates provided for US and Canada customs clearance.
Full-container load for concrete antifreeze — all batches passed third-party inspection.