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Micro-Silica by Phongsubthavy Group
⚓ Harbor
Micro-Silica - Image 1

Micro-Silica

🕐Last updated: Oct 21, 2026
$500 - $750 / MT (Approx. Negotiable)
Min. Order: 1 Unit
💱Loading exchange rate…
 
🔢HS Code2505.90
⚙️MaterialAmorphous Silicon Dioxide (SiO2)
📁CategorySilica Sand
💳Payment TermsT/T · L/C · D/P
Escrow Payment Available on EximNext
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Buy & Import Micro-Silica from Phongsubthavy Group - Wholesale Supply

Micro‑silica, or silica fume, is an amorphous silicon dioxide (SiO2) powder with a particle size typically below 1 µm. Phongsubthavy Group in Murfreesboro, Tennessee supplies this material in bulk bags or containers. The product’s description highlights a large specific surface area that enhances pozzolanic activity. It is classified as a high‑performance concrete additive.

The amorphous structure gives the powder high chemical reactivity, which can increase compressive strength of cement pastes. Typical industry practice blends 5‑10 % micro‑silica by weight into concrete mixes to improve durability and reduce permeability. Besides concrete, the material is used in refractory castables, high‑temperature ceramics and specialised mortars. Standard quality tests include loss on ignition, particle size distribution and specific surface area measured by BET method.

Buyers such as ready‑mix contractors, precast manufacturers and infrastructure developers source it for projects requiring long‑term strength. Trade terms are usually FOB or CIF, with packaging in 25 kg bulk bags; exact MOQ and lead time should be confirmed with the supplier. Phongsubthavy Group’s trust tier is “harbor”, indicating a verified business profile.

Technical Specifications for Phongsubthavy Group Micro-Silica
MaterialAmorphous Silicon Dioxide (SiO2)
Particle Size< 1 µm (typical)
Specific Surface Area≥ 15 m²/g (typical)
Bulk Density0.45 t/m³ (typical)
SiO2 Purity≥ 85 % (typical)
Loss on Ignition (LOI)≤ 5 % (typical)
Packaging25 kg bulk bag or 20 ft container (standard)
Storage ConditionDry, sealed, temperature ≤ 30 °C (standard)
Common ApplicationConcrete additive for high‑strength mixes (typical)
Standard Test MethodBET surface area measurement (standard)
About Phongsubthavy Group - Silica Supplier in United States
Phongsubthavy Group
United States⚓ Harbor

Phongsubthavy Group is located at 1215 Warren St, Murfreesboro, Tennessee 37129, United States. The supplier carries a “harbor” trust tier on the platform, which reflects a verified business profile, although the current response rate is recorded as 0 %.

The company lists micro‑silica as its primary product and notes that it is sourced from ferrosilicon alloy production. No minimum order quantity, price list or lead‑time is disclosed in the public data, so interested importers should request those details directly from the supplier.

Micro-silica, also known as silica fume, is a high-performance pozzolanic material consisting of amorphous SiO2 with an extremely fine particle size and large specific surface area. It is widely used as a concrete additive to improve compressive strength, durability, and chemical resistance, and is also applied in refractories, ceramics, and high-performance mortars. Sourced primarily from ferrosilicon alloy production, it is traded globally in bulk bags or containers for import/export across construction, infrastructure, and industrial sectors.

Business TypeSupplier
Year EstablishedRecently Joined
EmployeesContact Supplier
Annual RevenueContact Supplier
Main ProductsView Products Tab
Major MarketsGlobal
Response TimeContact Supplier
Response RateNew Supplier
Frequently Asked Questions About Micro-Silica from Phongsubthavy Group
The supplier describes the material as having a particle size below 1 µm, which aligns with industry norms for silica fume. Buyers should request a particle‑size distribution report to confirm the exact range.

Sourcing Micro-Silica from Phongsubthavy Group - United States Import Guide

Before placing an order, verify the particle‑size distribution, SiO2 purity and BET surface area through a supplier‑issued certificate of analysis. Request a material safety data sheet and, if possible, a small sample to run a trial mix. Confirm that the product is stored in moisture‑proof packaging to maintain its pozzolanic activity.

Logistics for bulk micro‑silica typically involve FOB or CIF terms from a US port such as Memphis or New Orleans. Lead‑time and container loading schedules vary, so ask the supplier for an estimated shipment window and any required advance notice. Payment terms are usually negotiated as a letter of credit or advance payment; ensure these are documented in the contract.

Arrange for a pre‑shipment inspection by an accredited third‑party laboratory to verify the test results against the supplied certificates. Upon arrival, conduct a moisture content check and compare the bulk density with the typical 0.45 t/m³ value. Retain all inspection reports, certificates and shipping documents for customs clearance and quality assurance.

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Phongsubthavy Group
United States
⚓ HarborIndustrial & Minerals
54/100
Trust Score
2
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Buy Micro-Silica in Bulk — Supplier in United States

When sourcing Micro-Silica for your business, securing the right balance of quality and cost is essential. Phongsubthavy Group, a supplier based in United States, offers this product with key specifications including Undensified / Densified Grade (per ASTM C1240), SiO2 content 85% - 98%, Loss on Ignition (LOI) < 6%, and Particle size 0.1 - 0.5 microns; Specific surface area 15 - 30 m2/g. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $500 – $750 / MT and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 2505.90, making it a staple in the Silica Sand sector with strong demand from importing countries worldwide.

Micro-Silica Specifications, Trade Terms & Pricing

Importing Micro-Silica requires careful attention to shipping logistics, customs compliance, and secure payment terms. Phongsubthavy Group offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 2505.90 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.

About Phongsubthavy Group — Supplier in United States

Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Micro-Silica for business registration and quality documents before ordering. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of manufacturers and exporters across 200+ countries. Explore similar products in the Silica Sand category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.

Import Micro-Silica — Shipping, Logistics & Customs

Importing Micro-Silica requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 2505.90 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).

Frequently Asked Questions About Micro-Silica

What is the wholesale price of Micro-Silica?

The current listed wholesale price for Micro-Silica from Phongsubthavy Group is $500 – $750 / MT on FOB terms from United States. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Phongsubthavy Group through EximNext.

What is the Minimum Order Quantity (MOQ) for Micro-Silica?

The supplier, Phongsubthavy Group, has set a Minimum Order Quantity (MOQ) of 1 Unit for Micro-Silica. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.

What is the HS Code for Micro-Silica?

For international shipping and customs clearance, Micro-Silica is classified under HS Code 2505.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.

How can I import Micro-Silica from United States?

To import Micro-Silica from United States, negotiate shipping terms (FOB, CIF, or EXW) directly with Phongsubthavy Group. Ensure you have the necessary import licenses for Silica Sand products in your destination country.

How can I check Phongsubthavy Group before ordering?

Open the Phongsubthavy Group company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.

What are the key specifications of Micro-Silica?

The key specifications for Micro-Silica supplied by Phongsubthavy Group include Undensified / Densified Grade (per ASTM C1240), SiO2 content 85% - 98%, Loss on Ignition (LOI) < 6%, and Particle size 0.1 - 0.5 microns; Specific surface area 15 - 30 m2/g. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.

What packaging options are available for bulk orders of Micro-Silica?

Phongsubthavy Group offers Micro-Silica with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.

Which countries import Micro-Silica the most?

Micro-Silica is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Phongsubthavy Group through our platform.

What certifications does this Micro-Silica supplier hold?

Phongsubthavy Group maintains international quality certifications. These ensure that the Micro-Silica meets international quality, safety, and regulatory standards required for cross-border trade.

How do I place a bulk order for Micro-Silica on EximNext?

Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Phongsubthavy Group will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.

What payment methods are accepted?

Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Phongsubthavy Group.

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