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Gypsum

Cement Performance Catalyst from Pakistan

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Gypsum ore
Gypsum ore

High-Purity Gypsum for Cement and Construction Applications

Technical Specifications

ParameterGuaranteed ValueImpact on Operations
CaSO₄·2H₂O94.6% minEffective set-time control in cement milling
LOI (Loss on Ignition)18.3% ±0.5Enhances calcination control
Whiteness92% (ISO)Ideal for aesthetic and structural wallboards
Residue (45μm)1.0% maxEnables smoother surface finish in final product

Our product is tested per ASTM C471M and PSQCA standards, ensuring reliability batch after batch.

Overview


 At Shah Mercantile Co., we supply cement-grade, natural gypsum mined and processed under strict technical supervision to meet the precise demands of cement manufacturers, wallboard producers, and construction material processors.

Our gypsum is renowned for its high CaSO₄·2H₂O purity, low moisture profile, and performance-optimized whiteness, making it a cost-efficient catalyst for set-time control and strength optimization.

Plant-Level Economic Advantages


 Using our high-efficiency gypsum translates directly to measurable savings in your plant operations:

  • Lower Bond Work Index – 6.8 kWh/MT
    Compared to the industry average of 7.5 kWh/MT, this reduction alone can yield energy savings of up to $11,000/month, depending on throughput.
  • Reduced Grinding Media Wear – 18% Less Consumption
    Our gypsum’s optimized mineral profile reduces mill abrasion, extending liner and media life and cutting maintenance downtime.
  • Higher Strength Early Setting
    Supports more consistent 1-day compressive strength values, streamlining downstream production timelines for cement and board manufacturing.


Contamination Control Measures


 We take source purity and contamination control seriously—so your finished product meets internal QA and external regulatory benchmarks.

  • Covered Storage from Mine to Dispatch
    Prevents moisture reabsorption and microbial growth, with <0.5% moisture retention at the silo stage.
  • Heavy Metal Screening Every 500MT
    Comprehensive testing for arsenic, cadmium, mercury, and chromium—preventing toxic load accumulation in final products.
  • Minimal Fines Contamination
    Refined grinding and sieving reduce residue >45μm, ensuring a clean mix that flows smoothly in pneumatic systems.

Buyer Pain Points We Solve


 

❱ Inconsistent Setting Time

Our gypsum ensures stable, controlled hydration, minimizing the risk of false or delayed setting, especially in blended cement operations.

❱ High Grinding Energy Costs

With a lower Bond Work Index and less abrasion, we reduce your electricity and grinding media expenses—while protecting downstream process lines.

❱ Moisture & Caking in Storage

We use covered logistics from mining to packaging, maintaining powder dryness and preventing caking or material hardening in transit.

❱ Concerns Around Trading Transparency in Pakistan

We are committed to transforming the sourcing experience from Pakistan—by offering clear documentation, real-time shipment visibility, and buyer-first accountability.

Flexible Commercial Terms (Customized for You)


 

  • Incoterms: FOB Karachi / FOR Plant (can be negotiated)
  • Insurance: Theft and moisture damage coverage (can be negotiated)
  • Certifications: PSQCA, ASTM C471M, SASO pre-shipment inspection (can be negotiated)
  • MOQ: 300MT (can be negotiated)
  • Packaging: Bulk bags (1.5MT) or 25kg sacks (palletized or floor-stacked)

Each consignment is packed with precision and accompanied by a shipment dossier that includes:

  • Full COA (Certificate of Analysis)
  • Moisture report at dispatch
  • Loading photos and weight bridge slips
  • Third-party inspection certificates upon request (SGS, Intertek)

Why Source Gypsum from Shah Mercantile Co.?


 We understand how much precision and predictability matter in raw material sourcing. That’s why we’ve built our gypsum export program around:

  • Consistent Quality & Color Match Across Shipments
  • Transparency in Mine Origin, Extraction, and Packing
  • Fast Response, Clear Communication, and Custom Logistics
  • No Third-Party Trading – We Own the Source

From the first sample to your production line, we treat your business as our own—because we’re not here to win one order, we’re here to be your long-term, high-trust mineral partner from Pakistan.

Let’s Start a Transparent Trade Relationship


 Email: info@shahmercantile.com

Website: www.shahmercantile.com

 Available for Zoom walk-throughs of packaging, processing & documents.