01Our Philosophy
We uphold the core values of "Quality First, Integrity Foremost, Honest Business, and Service to All" — placing customer needs at the center and crafting every batch with dedicated craftsmanship.
LV BAI JIA
Professional AdBlue / DEF Supplier·Purifying Every Inch of Blue Sky

Professional AdBlue / DEF Supplier Worldwide
Est. 2022 · No. 6 Wanlong Road, Haining Economic Development Zone, Zhejiang, China
By the Numbers

HAINING LVYAN CHEMICAL CO.,LTD
Haining · AdBlue Manufacturing
Purifying Every Inch of Blue Sky
Lvyan Chemical is located in the Haining Economic Development Zone, Haichang Sub-district, Jiaxing, Zhejiang Province — a leading manufacturer of denitrification urea and automotive-grade DEF (AdBlue) in the Haining region. With a skilled and experienced team, we are committed to delivering high-quality products, expert technical support and comprehensive after-sales service.
From values to the full value chain to customer trust — a clear path.
01We uphold the core values of "Quality First, Integrity Foremost, Honest Business, and Service to All" — placing customer needs at the center and crafting every batch with dedicated craftsmanship.
02We have built a full industry chain covering R&D, production and sales of urea products. Supported by a scientific management system and advanced production facilities, we continuously invest in technology upgrades and process improvements. Increased R&D investment has enabled us to develop urea products with superior performance and stability, maintaining a leading position in the industry.
03With reliable product quality and proven field performance, Lvyan Chemical has earned the trust of customers nationwide and established long-term partnerships with numerous enterprises, steadily expanding market share. Going forward, we will continue to drive innovation and contribute further to environmental protection and customer value.
Compliant with GB29518-2013 · Suitable for China IV/V/VI & Euro IV/V/VI Diesel Vehicles
GB 29518-2013 compliance, every batch traceable.
Long-term partnerships and reliable delivery.
Transparent standards and real test data.
Unified support for fleets and industry clients.
Next Step
Whether you need AdBlue supply or regional distribution, our team is ready to talk.
Primary feedstocks — ammonia and CO₂ — are sourced from synthetic ammonia and ammonium bicarbonate plants. Urea is dissolved with water, then the evaporated liquor is refined into the urea solution.
Oxidants (ammonium persulfate, H₂O₂, etc.) are added to the urea solution; with proper temperature and pH, urea decomposes into ammonia and CO₂ — the core reductant for denitrification.
Ammonia reacts with NOx inside a catalyst-bed reactor — composed of active carbon catalysts and supports — producing N₂ and water vapor with high reaction efficiency.