Zhongqi Guangdong Silicon Material Co., Ltd. 1. Company Overview Zhongqi Guangdong Silicon Material Co., Ltd. is a national high-tech enterprise and a provincial-level "Specialized, Refined, Unique and Innovative" enterprise with over 20 years of deep expertise in the silica industry. Headquartered in Guangdong, China, we specialize in the R&D, manufacturing and global supply of high-purity amorphous precipitated silica (silicon dioxide, SiO₂, also known as white carbon black), serving six core sectors: food, cosmetics, oral care, feed, pharmaceutical and industrial applications. Our full product portfolio covers standard grades and custom formulations, with pharmaceutical-grade silica fully compliant with major global pharmacopoeia standards including USP-NF, Ph.Eur., BP and JP for worldwide regulatory acceptance. Backed by 17 proprietary patents, a GMP-certified production facility and a rigorous 26-step quality inspection system from raw material sourcing to finished product release, we deliver consistent, traceable and high-performance silica solutions to customers across Southeast Asia, Europe, the Americas and other global regions. 2. Core Technical Advantages Our precipitated silica products are engineered to meet the world's strictest quality and performance standards, delivering reliable performance across all application scenarios: Core Advantage Detailed Description Ultra-Low Heavy Metal & Impurity Control Heavy metal residues are strictly controlled far below global pharmacopoeia limits; effectively prevents discoloration caused by iron ion reactions with ingredients such as ethyl maltol in food and pharmaceutical formulations, safeguarding product appearance and toxicological safety. High Purity & Batch Consistency Precision closed-loop process control minimizes residual contaminants; tight batch-to-batch uniformity ensures stable performance across all industries, fully meeting USP-NF, Ph.Eur., BP and JP purity specifications. Superior Multi-Functional Performance Delivers over 40% improvement in powder flowability (anti-caking / glidant effect), with excellent thickening, matting, abrasion, adsorption and suspension properties tailored to different formulation needs. Customizable Product Specifications Tunable particle size from 2 μm to 50 μm with controlled particle size distribution, surface area and porosity; available in light grade, dense grade, hydrophilic and hydrophobic surface-modified variants to match specific application requirements. Excellent Thermal & UV Stability Resists yellowing and degradation under high-temperature processing and long-term light exposure, maintaining stable performance in heat-treated products and outdoor applications. GMP-Compliant Manufacturing Pharmaceutical-grade clean production environment with full quality traceability, supporting GMP, DMF and CEP regulatory requirements for pharmaceutical excipients. 3. Application Solutions 3.1 Food Industry Our food-grade precipitated silica is manufactured to USP-NF equivalent purity levels, serving as a high-performance anti-caking agent for baking ingredients, confectionery, spices, powdered beverages, seasonings and other powdered food products. Its ultra-low heavy metal profile eliminates discoloration reactions with sensitive ingredients such as ethyl maltol, while ensuring full compliance with global food safety regulations. 3.2 Cosmetics & Personal Care Produced with pharmaceutical-level purity control, our cosmetic-grade silica functions as a thickener, matting agent, oil absorber and texture enhancer in creams, lotions, serums, powders and skincare formulations. It delivers a smooth, silky skin feel, controlled viscosity and excellent sensory properties, with full compliance with EU CosIng, US CIR, JSCI and other global cosmetic safety regulations. 3.3 Toothpaste & Oral Care Our toothpaste-grade silica acts as a mild abrasive and thickening agent with precisely controlled RDA (Relative Dentin Abrasion) values. It delivers effective plaque and stain removal without damaging tooth enamel, and meets international dental care standards including ADA Standard No. 25 and ISO 11609, with purity levels aligned to pharmacopoeia requirements. 3.4 Feed Industry Feed-grade silica serves as an efficient anti-caking and free flow agent for feed additives, vitamin premixes, mineral premixes and animal nutrition products. It optimizes powder flowability, prevents caking during storage and transportation, and complies with FAMI-QS and other global feed safety standards. 3.5 Pharmaceutical Industry Our pharmaceutical-grade precipitated silica is a high-purity amorphous excipient manufactured in strict accordance with GMP standards, with full compliance with USP-NF, Ph.Eur., BP and JP pharmacopoeia monographs. Available in light and dense grades, as well as hydrophilic and hydrophobic variants, it is widely used in oral, topical and specialty formulations as a multi-functional processing aid: - Glidant & Anti-caking Agent: Improves powder flowability in tablet and capsule manufacturing, reduces inter-particle friction, and enhances content uniformity of active pharmaceutical ingredients (APIs). - Disintegrant & Adsorbent: Accelerates tablet disintegration and promotes API dissolution; also serves as a carrier for liquid APIs to convert them into stable solid dosage forms. - Thickener & Suspending Agent: Provides stable thickening and rheology control in ointments, creams, gels and topical formulations, improving product texture and storage stability. - Desiccant & Stabilizer: Absorbs trace moisture in moisture-sensitive formulations, extending shelf life and maintaining API stability. We provide full regulatory documentation support including DMF dossiers and CEP certification assistance to facilitate customer product registration in global pharmaceutical markets. 3.6 Industrial Applications Our industrial-grade precipitated silica is a versatile high-performance functional material widely used across rubber, coatings, plastics, inks and specialty industrial sectors: Rubber Industry As a reinforcing filler in rubber compounds, our silica significantly improves tensile strength, tear resistance, abrasion resistance and elasticity. In tire manufacturing — particularly green tires and low rolling resistance tires — silica-reinforced rubber delivers better wet grip, lower rolling resistance and improved fuel efficiency compared to traditional carbon black. Applications include footwear, industrial rubber goods, hoses, belts and silicone rubber products. Coatings & Paints Serves as an effective matting agent, anti-settling agent and rheology modifier in architectural coatings, industrial paints, wood coatings and automotive finishes. It provides controlled gloss reduction, improved scratch resistance, enhanced anti-sagging properties and better storage stability — without compromising coating transparency or film integrity. Plastics & Films Used as an anti-blocking (opening) agent in polyolefin films (BOPP, CPP, PE) and as a reinforcing filler in engineering plastics. It improves film surface smoothness, prevents blocking during winding and storage, and enhances mechanical properties of plastic composites. Inks & Printing Acts as a thickener, anti-settling agent and gloss controller in printing inks. It improves ink rheology, prevents pigment settling, enhances print quality, and provides excellent rub resistance in both solvent-based and water-based ink systems. Specialty Industrial Uses - Catalyst carrier for petrochemical and fine chemical processes, with customizable pore structure and surface area - Filter aid and clarifying agent for industrial liquid processing - Lubricant and stabilizer in industrial grease and polymer processing - Dispersant and defoamer carrier for industrial powdered systems 4. Global Standards & Certifications Our products comply with a comprehensive range of international standards and certifications, ensuring regulatory acceptance across global markets: 4.1 Food Safety - FSSC 22000 - ISO 22000:2018 - ISO 9001:2015 - FDA 21 CFR attestation - GB 25576-2010 (China Food Additive Standard) - Food Additive Production License 4.2 Feed Safety - FAMI-QS - Feed Additive Production License 4.3 Cosmetics & Personal Care - EU CosIng (S787) - US CIR Safety Certification - JSCI No. 100306 (Japan) - China Inventory of Used Cosmetic Ingredients (No. 04867) - ASEAN Cosmetic Directive compliant 4.4 Dental Care - ADA Standard No. 25 - ISO 11609 4.5 Industrial Standards Standard Number Issuing Body Application Scope ISO 5794-1 International Organization for Standardization (ISO) General standard for precipitated hydrated silica (white carbon black) for rubber applications ISO 3262-19 International Organization for Standardization (ISO) Extender pigment silica for coatings and plastics ASTM D6739 American Society for Testing and Materials (ASTM) North American standard for silica used in rubber applications JIS K 6220 Japanese Industrial Standards Committee (JISC) Japanese standard for white carbon black in rubber applications JIS K 5101 Japanese Industrial Standards Committee (JISC) Japanese standard for silica used in coatings and pigments DIN 55923 German Institute for Standardization (DIN) European standard for silica in coatings and printing inks HG/T 3061 Ministry of Industry and Information Technology (China) Chinese industry standard for precipitated white carbon black in rubber applications 4.6 Pharmaceutical Pharmacopoeia & Regulatory Compliance - USP-NF (United States Pharmacopeia – National Formulary) monograph compliant - Ph.Eur. (European Pharmacopoeia) monograph compliant - BP (British Pharmacopoeia) monograph compliant - JP (Japanese Pharmacopoeia) monograph compliant - GMP certification for pharmaceutical excipient manufacturing - DMF (Drug Master File) dossier support - CEP (Certificate of Suitability) certification support 4.7 Halal & Kosher - SHC HALAL certification - OU KOSHER certification 4.8 Social Compliance - SEDEX certified 5. Quality & Production - GMP-certified production base with fully automated closed manufacturing lines to eliminate cross-contamination risks - Advanced analytical equipment: atomic fluorescence spectrometers, laser particle size analyzers, BET surface area analyzers, microbial testing systems and more - Rigorous 26-step quality inspection system covering raw material incoming inspection, in-process monitoring and finished product release testing, with full batch traceability - Full testing capability for all pharmacopoeia indicators including heavy metals, microbial limits, loss on drying and residue on ignition - National High-Tech Enterprise accredited for continuous technological innovation - Guangdong provincial-level "Specialized, Refined, Unique and Innovative" Enterprise - 17 authorized patents granted by the State Intellectual Property Office 6. Packaging & Logistics Standard Packaging - Sizes: 10kg / 15kg / 20kg woven bags; 25kg fiber drums for pharmaceutical grades - Waterproof design: Composite film valve bag with outer PE layer, or PE inner film bag + plastic woven bag — fully sealed against moisture intrusion - Pharmaceutical-grade option: Double-layer sterile PE inner bag with outer cardboard drum, suitable for sterile-grade silica products Storage & Shelf Life - Store in cool, dry, well-ventilated environment - Shelf life: 24 months from production date - Classified as non-hazardous chemical for transportation Labeling - Each package marked with full legal information: product grade, specification, additive limits, production license number and batch number - Custom labeling available per customer requirements Shipping - Global shipping support (sea / air / multimodal transport) - Full export documentation and customs compliance support - Mature supply chain serving Southeast Asia, Europe, the Americas and worldwide 7. Customer Support - Pre-sales: Free sample provision for formulation evaluation and compliance testing - Regulatory support: Full documentation package for pharmacopoeia compliance, DMF filing and market registration - Technical support: Dedicated technical team for application guidance, formulation optimization and troubleshooting - Customization: Tailored particle size, surface area, surface treatment and packaging solutions to meet specific requirements - R&D partnership: Joint product development for customer-specific application needs --- Zhongqi Silicon Material — Your Trusted Global Partner for High-Purity Silica Solutions From food additives to pharmaceutical excipients, from personal care to advanced industrial materials — we deliver silica excellence compliant with the world's strictest standards.