About Qingdao Winagro Biotech Co., Ltd. - Industrial Chemicals Supplier in China

Based in Qingdao, China, Qingdao Winagro Biotech Co., Ltd. currently lists seven distinct products in its public catalogue. The catalogue includes urea, three humic‑based acids (humic acid, humic acid potassium, and fulvic acid potassium marketed as Super Humate), potassium sulphate, a tractor, and pre‑painted galvanized steel sheet supplied in coil form. The steel sheet entry specifies HS code 7210.70 and identifies the material as hot‑dip zinc‑coated galvanized steel (SGCC). The remaining items fall under the broader categories of fertilizers, industrial chemicals, agricultural machinery and metal products, matching the supplier’s top‑category list. All products are presented without additional branding or client references, reflecting the supplier’s disclosed active product count of seven.

The product set spans both agricultural inputs and industrial goods, illustrating a diversified portfolio rather than a single‑sector focus. Urea and potassium sulphate are classified under the fertilizer segment, while the humic and fulvic acids are categorized as soil‑conditioner chemicals. The tractor represents a piece of agricultural machinery, and the steel coils belong to the metals and allied products segment. Each item aligns with a distinct HS‑code family used in international trade, providing clear tariff classification for potential importers.

Product Range and Specialties of Qingdao Winagro Biotech Co., Ltd.

The supplier’s catalogue lists urea, a nitrogen fertilizer typically supplied as prilled granules with a nitrogen content of 46 % (HS 3102.10). Humic acid and its potassium variants are water‑soluble organic acids often offered with a purity of 70 - 80 % and a soluble solids content of 30 - 45 % (HS 3804). Fulvic acid potassium, marketed as Super Humate, is a lower‑molecular‑weight fraction used for seed treatment and is usually supplied in 25 kg bags or bulk containers. Potassium sulphate, a potassium‑rich fertilizer, is commonly graded at 50 % K2SO4 and shipped in 25 t bulk bags (HS 3105). The tractor entry lacks a model description but would generally fall under HS 8701 for agricultural tractors, with power ranges from 30 kW to 150 kW. The pre‑painted galvanized steel sheet in coils is described as SGCC, typically meeting ASTM A653 or ISO 1461 standards, with coating thicknesses between 45 - 150 µm and gauges from 0.5 mm to 3 mm (HS 7210.70).

Trade and Export Information - Qingdao Winagro Biotech Co., Ltd.

China is a leading exporter of nitrogen fertilizers such as urea, potassium sulphate and organic soil conditioners, supplying markets in Southeast Asia, Africa and Latin America. Export shipments of urea usually use HS 3102, while humic‑based acids are classified under HS 3804, and steel coils under HS 7210. Buyers often require ISO 9001 quality‑management certification, and for steel products additional conformity to ISO 14001 environmental standards is common. Tractors manufactured in China typically need CE marking for safety and may be subject to local emission standards in the destination country. Standard logistics involve loading bulk bags or coil packages into 20‑ft or 40‑ft containers, with FOB or CIF incoterms being the most frequently negotiated terms.

Sourcing from Qingdao Winagro Biotech Co., Ltd. - Buyer Guidance

Importers should request a detailed product specification sheet for each item, including nitrogen content for urea, purity and soluble solids for humic acids, and K2SO4 percentage for potassium sulphate. Laboratory analysis reports (e.g., ICP‑OES for elemental composition) and an MSDS are standard documents that help verify compliance with fertilizer regulations. For the steel coils, buyers normally ask for a mill test certificate, coating thickness report and compliance with ASTM A653 or ISO 1461. Prior to order confirmation, verify the supplier’s ISO certifications, request a sample batch for laboratory testing, and clarify packaging dimensions, weight per bag or coil length to ensure container loading efficiency.

What fertilizer products does Qingdao Winagro Biotech list in its catalogue?

The catalogue includes urea, potassium sulphate, humic acid, humic acid potassium and fulvic acid potassium (Super Humate), all of which are classified as agricultural fertilizers or soil conditioners.

Which HS code applies to the steel product offered by the supplier?

The pre‑painted galvanized steel sheet in coils is listed with HS code 7210.70, covering hot‑dip zinc‑coated steel sheets and plates.

What typical specifications should a buyer verify for the urea product?

Buyers should confirm the nitrogen content (normally 46 % N for prilled urea), particle size range (2 - 4 mm), and packaging format such as 25 t bulk bags.

Are there common certifications required for the humic acid products?

Importers usually request an ISO 9001 quality‑management certificate and a laboratory analysis report showing purity (70‑80 %) and soluble solids content.

What documentation is standard for the tractor listing?

Standard documents include a CE conformity declaration, an engine power rating sheet, and a vehicle type approval certificate for the target market.

How is the pre‑painted galvanized steel typically packaged for export?

The steel coils are normally wound onto steel cores, protected with a moisture‑resistant film, and shipped in 20‑ft or 40‑ft containers, with coil weight and length detailed on the packing list.

What are the common export markets for Chinese fertilizer products like those listed?

Major import destinations include countries in Southeast Asia, East Africa, Brazil and other Latin American regions, where demand for nitrogen and potassium fertilizers is high.

What sample procedures are advisable before placing a bulk order?

Request a small quantity sample (e.g., 5 kg of urea or a 1‑m coil segment) accompanied by a full test report, allowing the buyer to verify composition, moisture content and physical properties against the specifications.