Import Expanded Vermiculite — Buy in Bulk from Supplier in China

Great Wall Mineral offers expanded vermiculite that originates from natural mineral deposits in China. The raw mineral consists of (Mg,Fe,Al)3(Al,Si)4O10(OH)2·4H2O and expands when heated above 870 °C, achieving a volume increase of 2000‑3000 %. The product is supplied in grades ranging from System A to System B, each defined by particle size and bulk density, for example System A particles measure 5‑8 mm and have a bulk density of 3.5‑4.5 g L⁻¹.

Typical vermiculite characteristics include a pearly to greasy luster, hardness of about 1.5 on the Mohs scale and a specific gravity of 2.3. Standard industry specifications call for moisture content below 0.5 % and a neutral pH, which help maintain stability during handling and processing. The material is lightweight, chemically inert and fire‑resistant, making it suitable for applications such as horticultural growing media, industrial absorbents, fire‑proof concrete additives and pet bedding. Great Wall Mineral can also produce custom grades to meet specific bulk‑density or particle‑size requirements.

Potential buyers include agricultural distributors, construction material manufacturers and industrial waste‑management firms. The listing notes that vermiculite is packed in jumbo bags holding 1 cubic metre (approximately 1.2 metric tons), but does not disclose minimum order quantities or lead‑time, which should be confirmed with the supplier. Shipping terms, incoterms and payment conditions are negotiable and must be clarified before finalising any purchase. Prospective importers are encouraged to request a material safety data sheet and any relevant test certificates.

Great Wall Mineral is based at 282 North Zhonghua Street, Shijiazhuang, Hebei, China, postal code 050000. The company carries a harbor trust tier and is listed as an imported supplier, but its response rate is recorded as 0 % with no average response time available.

The supplier focuses on mineral processing and offers expanded vermiculite in a variety of grades, as described in the product data. No additional details about company size, history or client portfolio are provided in the listing.