Description

Granular Sulfur Supplier & Exporter – Premium Iranian Sulfur for Global Markets

Granular Sulfur is a refined and stabilized form of elemental sulfur, produced through a controlled granulation process that converts molten sulfur into solid, uniformly shaped particles. This production method ensures consistent granule size, minimal dust, and improved handling properties, making Granular Sulfur the most widely used sulfur form in the global fertilizer and chemical industries. Its clean appearance, bright yellow color, and high purity make it an ideal raw material for a variety of industrial applications.

At Call2Supply, we proudly supply and export high-quality Iranian Granular Sulfur directly from refineries and petrochemical complexes operating under the National Iranian Oil Company (NIOC). Our long-term cooperation with major producers such as Bandar Abbas Refinery, Persian Gulf Star Oil Refinery, Tehran Oil Refinery, and other NIOC-affiliated facilities ensures that our clients receive a product of consistent quality, purity, and performance.

In addition to Iranian sources, Call2Supply also cooperates with Turkmengas in Turkmenistan, expanding our supply network to offer more flexible logistics, stable availability, and competitive delivery options for global buyers.

Applications

Agriculture and Fertilizer Industry

Sulfur is one of the essential secondary nutrients for plants. It supports enzyme formation, chlorophyll production, and protein synthesis, helping crops achieve better growth and higher yield. Granular sulfur is widely used in the formulation of compound fertilizers such as NPKS, ammonium sulfate, and sulfate of potash.
Thanks to its granular form, it releases nutrients gradually, providing a long-term sulfur source for the soil. It also helps to lower soil alkalinity, improving nutrient absorption in areas with high-pH or sulfur-deficient soils. For farmers and fertilizer manufacturers, granular sulfur from Iran offers the ideal balance of efficiency, purity, and performance.

Industrial and Chemical Applications

Granular sulfur also plays a vital role in the industrial sector. It is the main raw material for sulfuric acid production, which is one of the most widely used chemicals in the world. Additionally, it is used in rubber vulcanization, detergent manufacturing, mining, metal refining, and paper processing.
Because of its uniform granule size and resistance to dusting, it can be easily handled in automated systems, stored safely for long periods, and shipped in bulk without the risk of contamination or caking.

Why Choose Call2Supply Is A Smart Decision ?

Direct Refinery Sourcing

Call2Supply sources granular sulfur directly from leading Iranian refineries and petrochemical plants, guaranteeing authentic material, traceable origin, and continuous supply. This direct access eliminates middlemen, reduces cost, and ensures customers receive consistent quality in every shipment.

Premium Quality Control

We maintain strict quality control procedures at every stage of sourcing and export. Each batch of sulfur is inspected for purity, granule uniformity, mechanical strength, and moisture level before loading. Our products meet ISO, SGS, and REACH international standards to ensure safety, reliability, and high performance for both agricultural and industrial applications.

Rational Pricing

By operating with direct refinery access and efficient logistics management, Call2Supply offers rational pricing that reflects real market value without hidden costs. Our transparent and fair approach enables global buyers to secure premium Iranian sulfur while keeping their procurement costs optimized.

Flexible Supply & Packaging

We provide a variety of packaging options to meet the needs of different buyers — including 1 MT jumbo bags, 25 kg polypropylene bags, or customized packaging upon request. Shipments are handled professionally through Bandar Abbas and Bushehr ports, ensuring fast loading, proper cargo protection, and timely delivery.

Reliable Export Support

From inquiry to final delivery, our experienced export team manages every detail of the process. We assist clients with sampling, technical data sheets, export documentation, SGS inspection, and customs coordination. Our goal is to ensure smooth, transparent, and stress-free shipments for every order.

Sustainability Commitment

At Call2Supply, we believe responsible sourcing is essential for a sustainable future. We cooperate with environmentally responsible refineries that utilize energy-efficient technologies, emission control systems, and sulfur recovery units to minimize waste and environmental impact. By partnering with such producers, we ensure that our supply chain supports eco-friendly practices and aligns with international sustainability standards.

If you are looking for Granular Sulfur from Iran, Call2supply company is ready to support you in your direct and swift supply in accordance with international trade. Contact our Team now or easily submit your order online.