Import Bentonite — Buy in wholesale FOB from Supplier in Hong Kong

Sinofrica Chemical Limited supplies natural montmorillonite clay from the smectite group, positioned for drilling, foundry, geotechnical containment, and environmental remediation applications. The material is described as API-spec drilling grade, indicating formulation to meet American Petroleum Institute standards for rheological performance in oil and water well drilling fluids. Unlike Kutch-origin bentonite marketed primarily for pelletizing, this grade targets viscosity building and fluid loss control in circulating mud systems. The supplier operates from Hong Kong, suggesting trade facilitation and logistics coordination rather than primary mining extraction.

The smectite group mineralogy confers high specific surface area (typically 700-800 m/g for sodium montmorillonite) and layer charge responsible for cation exchange and thixotropic gel formation. API drilling grade specifications require minimum yield point-plastic viscosity ratios, controlled filtrate volume under 15 mL in standard API fluid loss testing, and thermal stability to at least 121C for conventional wellbore depths. Foundry-grade variants from the same geological source may be calcium-exchanged or blended to optimise green compression strength and erosion resistance in moulding sand. Environmental and geotechnical applications exploit the low hydraulic conductivity of compacted bentonite, typically below 1 x 10 m/s for dense, saturated sodium bentonite.

Buyers span oilfield service companies, water well drilling contractors, foundries producing ferrous and non-ferrous castings, civil engineering contractors installing landfill liners or cutoff walls, and environmental consultancies managing contaminated site containment. The Hong Kong base positions the supplier for shipment through the Pearl River Delta manufacturing corridor and transshipment to Southeast Asian project sites. Trade terms, minimum order quantities, and lead times are not specified in the source data and require direct confirmation with Sinofrica Chemical Limited before quotation.

Sinofrica Chemical Limited is registered at Flat/Room 502, Arion Commercial Centre, 2-12 Queen's Road West, Hong Kong, placing it in the Sheung Wan district near the central business district rather than in an industrial zone. The supplier tier is imported with harbor trust classification, meaning the listing originates from external data ingestion rather than direct platform verification. No response rate or average response time is recorded. The address format and location suggest a trading or brokerage operation rather than a mine owner or processing facility operator.

The listing provides no information about company formation date, employee count, annual turnover, mining assets, processing plant ownership, or client references. Claims of API and ISO certifications appear in the source description but no certificate numbers, accreditation bodies, or scope of certification are extractable. Buyers should conduct due diligence on company registration with the Hong Kong Companies Registry, request audited financial statements or bank references for credit assessment, and verify whether the supplier holds direct mining agreements or operates as an intermediary. The stated global network and verified supplier claims require independent substantiation before reliance.