Import Ammonium Sulphate Crystal 21%Min From China — Buy in wholesale FOB from Supplier in China

Ammonium sulphate crystal is a nitrogen-sulphur fertiliser with a minimum nitrogen content of 21.0% by weight, supplied by Hebeizhongchang Fertilizer Co., Ltd. from their base in Shijiazhuang, Hebei Province, China. The crystalline form ensures consistent particle size for even spreading and rapid dissolution in irrigation water. The product carries a minimum nitrogen guarantee of 20.5% alongside the headline 21% minimum total nutrient specification, with moisture capped at 1.0% maximum. This dual-nutrient profile makes it a staple input for correcting sulphur deficiencies in intensive cropping systems.

The material is a standard-grade crystalline ammonium sulphate, (NH₄)₂SO₄, produced through the standard neutralisation of sulphuric acid with ammonia. Typical industrial grades contain 21% nitrogen and 24% sulphur on a dry basis; the sulphur component is present as readily available sulphate, which contrasts with elemental sulphur products that require microbial oxidation. The crystal structure affords low hygroscopicity compared to powdered variants, reducing caking during storage. Standard packaging for Chinese-export ammonium sulphate is 25 kg or 50 kg woven polypropylene bags with polyethylene liner, though bulk shipment in flexible intermediate bulk containers is common for volume orders. The pH of a 1% solution typically falls in the 5.5-6.0 range, acidifying soil slightly with repeated application.

Buyers span compound fertiliser blenders, direct-application farms, and specialty nutrient formulators for horticulture and hydroponics. Cereal growers favour ammonium sulphate for top-dressing winter wheat where sulphur response is documented, while potato and brassica producers use it to meet elevated sulphur demand. The product is also employed in flame retardant and food-grade applications, though this listing targets agricultural use. Trade terms from Chinese origin commonly quote FOB Tianjin or Qingdao, with CFR/CIF options to major discharge ports. Buyers should confirm with Hebeizhongchang Fertilizer Co., Ltd. the exact packaging configuration, loadability per 20-foot container, and whether inspection certificates such as SGS weight/quality reports are included or available at additional cost.

Hebeizhongchang Fertilizer Co., Ltd. maintains its registered office at 1-1101 Room, Huatangjurui, Shijiazhuang, in Hebei Province, China. The company's presence on the harbour trust tier indicates verification of business registration and export licence documentation, though this tier does not independently guarantee production capacity or quality management systems. The listing shows a response rate of 0.00% with an average response time of zero hours, which suggests either a new supplier profile, inactive account, or data collection anomaly rather than operational unavailability.

The profile does not disclose factory location, production lines, annual capacity, workforce size, or historical export destinations. No quality certifications such as ISO 9001, ISO 14001, or product-specific accreditations are confirmed in the source data. Buyers should conduct direct due diligence: request business licence copies, export registration, and factory audit reports before committing to trial orders. The supplier's address in Shijiazhuang places it within China's major north China fertiliser production corridor, with access to ammonia and sulphuric acid feedstocks from regional petrochemical and smelting industries. All claims regarding production scale, certification status, or client references must be verified directly with Hebeizhongchang Fertilizer Co., Ltd.