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Minerals
Limestone
OPS ASIA LIMITED, headquartered in Hong Kong, is a reputed international trading company specializing in the export and supply of limestone in various grades, forms, and customized packing options. With a strong sourcing network and reliable logistics infrastructure, we deliver industrial, construction, and agricultural-grade limestone to clients across Asia, the Middle East, Africa, and Europe.
90%
90% Organic Products
88%
Modern and Healthy
Company History
Agron is the Largest Global Organic Farm.
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Why Choose Us
Currently We’re Growing and Selling Organic Food
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At Capital Gardens we believe that we have a duty to adhere to good environmental practice, and operate in a sustainable manner. As lovers of plants and the environment it is only natural for us to want to reduce man’s impact.
Agron is used by over 60,000+ companies across the world
Our Limestone Product Range
We offer a broad spectrum of natural limestone to meet the needs of diverse industries:
High-Calcium Limestone
- CaCO₃ content: 95% and above
- Used in steel, cement, glass, and chemical industries
Dolomitic Limestone
- Contains both Calcium Carbonate (CaCO₃) and Magnesium Carbonate (MgCO₃)
- Ideal for agricultural applications and soil conditioning
Crushed Limestone
- Various sizes: 0–5 mm, 5–20 mm, 20–40 mm, etc.
- Used in construction aggregates, road base, cement plants, and ready-mix concrete
Limestone Powder / Ground Calcium Carbonate (GCC)
- Finely milled for plastics, paints, rubber, and animal feed industries
Packaging Options
We supply limestone in multiple packaging formats depending on application and volume:
| Packing Type | Size Options | Applications |
|---|---|---|
| PP Woven Bags | 25 kg / 40 kg / 50 kg | Retail, agriculture, industrial |
| Jumbo Bags (FIBC) | 1 MT / 1.25 MT | Bulk buyers and cement factories |
| Bulk in Containers | 20′ or 40′ container loads | High-volume shipments |
| Loose Bulk (Vessel) | For port-side industries | Large infrastructure projects |
All packaging is export-compliant and can be customized with private labeling.
Applications of Limestone
Our limestone is used across key industries:
- Construction: Aggregates, cement production, road base
- Steel Industry: Fluxing agent in blast furnaces
- Agriculture: Soil conditioner, pH control, calcium enrichment
- Chemical Industry: Production of quicklime and hydrated lime
- Water Treatment: pH balancing, heavy metal precipitation
- Animal Feed: Calcium supplement for livestock and poultry
Export Markets
We supply limestone to:
- India
- Bangladesh & Vietnam
- UAE, Saudi Arabia, Oman
- Kenya, Ghana, Ethiopia
- Europe & Central Asia
Minerals
Sulphur
OPS ASIA LIMITED, based in Hong Kong, is a leading global trading company specializing in the supply and export of sulphur in various forms and packaging. We serve a wide range of industries including agriculture, chemicals, petroleum refining, mining, and industrial manufacturing. With years of international trade experience and a robust logistics network, we ensure timely delivery and competitive pricing for every sulphur shipment.
90%
90% Organic Products
88%
Modern and Healthy
Our Sulphur Product Range
We supply multiple forms of high-quality sulphur, sourced from certified refineries and processing plants:
Granular Sulphur
Widely used in agriculture and fertilizer production.
- Bright yellow, uniform granules
- High purity (99.5% minimum)
- Free-flowing and moisture-resistant
Lump Sulphur
Primarily used in chemical processing, industrial applications, and sulphuric acid manufacturing.
- Hard, solid form
- Typically packed in bulk or jumbo bags
- Suitable for reprocessing into other forms
Powdered Sulphur / Sulphur Powder
Used in pesticides, fungicides, rubber vulcanization, and pharmaceuticals.
- Finely milled
- High reactivity
- Optional anti-caking treatment
Packaging Options
We offer sulphur in a wide range of packaging to suit both bulk and retail requirements:
| Packing Type | Size Options | Typical Use |
|---|---|---|
| Jumbo Bags (FIBC) | 1 MT / 1.25 MT | Bulk export, industrial buyers |
| PP Woven Bags | 25 kg / 50 kg | Agricultural and retail markets |
| Bulk in Containers | 20′ or 40′ containers | High-volume orders |
| Palletized Shipments | With shrink wrap protection | Secured shipping for bagged goods |
All packaging conforms to international safety and transport standards for sulphur.
Applications of Sulphur
Sulphur is a vital raw material across many sectors:
- Agriculture: Soil amendment, sulphur-based fertilizers (e.g., ammonium sulphate, elemental sulphur)
- Chemical Industry: Production of sulphuric acid, detergents, dyes
- Oil & Gas: Gas sweetening, refining by-product sales
- Mining & Metallurgy: Ore processing, flotation chemicals
- Rubber Industry: Vulcanization agent in tyre manufacturing
- Pharmaceuticals & Cosmetics: Medicinal uses, soaps, and skin care products
Minerals
Rock Phosphate
OPS ASIA LIMITED, based in Hong Kong, is a globally recognized trading and export company specializing in the supply of rock phosphate in various grades and packaging options. We source from top producers and supply to clients across the fertilizer, agriculture, and chemical manufacturing industries.
With a strong logistics network and commitment to product consistency, we help our partners access high-purity rock phosphate at competitive prices — delivered reliably across Asia, Africa, the Middle East, and Europe.
90%
90% Organic Products
88%
Modern and Healthy
Our Rock Phosphate Product Range
We offer rock phosphate with varying Pâ‚‚Oâ‚… (phosphorus pentoxide) content to match the specific needs of your application:
High-Grade Rock Phosphate
- P₂O₅ content: 30%–34%
- Ideal for phosphatic fertilizer manufacturing
Medium-Grade Rock Phosphate
- P₂O₅ content: 24%–29%
- Used in direct application to soil and blended fertilizers
Low-Grade Rock Phosphate
- Pâ‚‚Oâ‚… content: Below 24%
- Suitable for soil enrichment in acidic conditions
Packaging Options
We provide rock phosphate in customized packing formats for bulk and retail needs:
| Packing Type | Size Options | Applications |
|---|---|---|
| Jumbo Bags (FIBC) | 1 MT / 1.25 MT | Industrial & agricultural bulk |
| PP Woven Bags | 25 kg / 50 kg | Retail & distribution channels |
| Bulk Shipments | In containers or vessels | High-volume fertilizer production |
| Palletized Shipments | Optional shrink-wrapping | Export-ready secured loading |
All packaging complies with international shipping and safety regulations.
Applications of Rock Phosphate
Rock phosphate is an essential raw material in agriculture and industry:
- Fertilizer Industry: Key source for manufacturing SSP (Single Super Phosphate) and DAP (Di-Ammonium Phosphate)
- Direct Soil Application: Used in organic and regenerative farming for slow-release phosphorus
- Chemical Industry: Base material for producing phosphoric acid, animal feed supplements, and detergents
- Industrial Use: Catalyst in metal treatment and glass manufacturing
Why Choose OPS ASIA LIMITED?
- Global Export Capability
- Wide Grade Selection (Low, Medium, High Pâ‚‚Oâ‚…)
- Flexible Packing Options
- Sourced from Trusted Mines
- End-to-End Documentation & Logistics
- Reliable Supply for Fertilizer Producers and Traders
We ensure a stable supply chain, even in fluctuating markets, and offer long-term contracts for consistent rock phosphate delivery.
Markets We Serve
OPS ASIA LIMITED exports rock phosphate to:
- India
- Bangladesh & Southeast Asia
- Middle East (UAE, Saudi Arabia, Oman)
- East & West Africa (Kenya, Nigeria, Ethiopia)
- Europe & CIS countries
Global Trade | Fertile Growth | Future Focused