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Who Are the Top 10 Sr Element Suppliers in China?

Choosing a dependable Sr Element supplier in China takes more than comparing a price list. Buyers may need different forms, purities, quantities, and delivery schedules. A laboratory order and a production-scale order are not the same. Details matter. This guide introduces ten suppliers for consideration, while treating the list as a research starting point rather than a guaranteed ranking. Supplier capabilities and product availability can change, so current claims should be checked directly.

The profiles focus on practical purchasing questions: published specifications, batch documentation, communication, packaging, and export experience. Request a current certificate of analysis and safety data sheet, and confirm that the stated grade matches your intended application. Ask how material is packed, stored, and tracked between production and dispatch. Check minimum order quantities, sample options, lead times, and how the supplier handles quality concerns. A polished website is useful, but it cannot replace verifiable records or a clear technical response.

Some suppliers may disclose more than others. That unevenness is worth noting. Public information alone rarely proves consistent product quality, and a low quotation may omit important service details. Compare like with like, confirm specifications in writing, and assess each company against your own technical and logistics requirements. The aim is not to declare one universal winner. It is to help buyers build a focused shortlist and ask better questions before placing an order.

Who Are the Top 10 Sr Element Suppliers in China?
Table of Contents [Hide]
1 What Is Strontium and Where Is It Used?
2 How Are Strontium Suppliers in China Evaluated?
3 Who Are the Top 10 Strontium Suppliers in China?
4 How Do Their Products and Capabilities Compare?
5 What Should Buyers Check Before Choosing a Supplier?

What Is Strontium and Where Is It Used?

Strontium (Sr) is a soft, silvery alkaline-earth metal that reacts readily with air and moisture. Pure strontium is rarely handled in ordinary manufacturing. Supply chains mainly use compounds such as strontium carbonate. That distinction matters. USGS Mineral Commodity Summaries 2024 estimates that China produced 430,000 metric tons of strontium mineral concentrates in 2023. Spain produced an estimated 140,000 metric tons. These figures describe mined concentrates, not refined metal or finished chemicals.

Strontium carbonate is used to make ferrite ceramic magnets, found in speakers, small motors, and household appliances. Strontium compounds also produce the vivid red color in signal flares and fireworks. USGS identifies ferrite magnets and pyrotechnics among the material’s established uses. The detail matters. A high-output supplier may not offer the right chemical grade or processing consistency for a particular application. Supplier rankings alone reveal little about those factors, or about delivery reliability. The picture is incomplete. Buyers need to compare product specifications and processing capability, not just national production figures.

Who Are the Top 10 Sr Element Suppliers in China? - What Is Strontium and Where Is It Used?

Strontium (Sr) is a reactive alkaline-earth element with atomic number 38. Since this table does not provide a verified company ranking, it summarizes ten commercially relevant strontium materials that buyers may encounter in the Chinese market. Applications and specifications vary by grade; confirm details with the supplier.

No. Strontium Material Formula Typical Uses Sourcing Checks
1 Strontium carbonate SrCO3 Raw material for strontium ferrite magnets; also used in ceramic and specialty-glass formulations. Check assay, particle-size distribution, moisture, and limits for iron and other impurities.
2 Strontium nitrate Sr(NO3)2 Oxidizer and red-color-producing ingredient in some pyrotechnic compositions and signal flares. Confirm assay, moisture, packaging, transport classification, and applicable local regulations.
3 Strontium chloride SrCl2 (anhydrous or hydrated forms) Chemical intermediate and laboratory reagent; certain grades are used in oral-care formulations. Specify hydration state, assay, intended application, and relevant impurity limits.
4 Strontium sulfate SrSO4 Mineral-derived source material and feedstock for producing other strontium compounds. Review SrSO4 content, particle size, color, and associated mineral impurities.
5 Strontium oxide SrO Used as a chemical intermediate and in selected glass and ceramic formulations. Check assay and packaging; confirm moisture protection because the material reacts with water.
6 Strontium hydroxide Sr(OH)2 (anhydrous or hydrated forms) Chemical intermediate used in strontium-compound synthesis and other specialty processing. Confirm hydration state, assay, alkalinity, and safe handling requirements.
7 Strontium titanate SrTiO3 Functional ceramic used in electronic and dielectric applications; specialized grades are used as substrates or optical materials. Request phase, purity, particle size, and electrical or optical data matched to the application.
8 Strontium ferrite SrFe12O19 Hard ferrite material used to manufacture permanent magnets. For powder, check particle characteristics and magnetic performance; for magnets, specify dimensions and required properties.
9 Strontium aluminate phosphor Typically doped SrAl2O4 Long-afterglow luminescent pigment used in products such as signage, coatings, and safety markings. Specify emission color, particle size, afterglow performance, and compatibility with the intended matrix.
10 Strontium metal Sr Specialty metal used in research and selected alloy or metallurgical applications. Confirm metal purity, form, inert packaging, storage conditions, and reactive-metal handling procedures.

Before purchasing, request a current technical data sheet and certificate of analysis, and verify that the grade, documentation, packaging, and regulatory requirements suit your application.

How Are Strontium Suppliers in China Evaluated?

To evaluate strontium suppliers in China, compare measurable quality, consistency, and traceability—not just quoted price. The USGS Mineral Commodity Summaries 2024 identifies major celestite resources in China, Spain, Mexico, Iran, and Turkey. This concentration makes origin and supply continuity worth checking. Ask for recent certificates of analysis showing SrSO₄ or SrCO₃ content, moisture, particle size, and impurity limits. Match each figure to your application’s specification.

Review whether test results come from a qualified laboratory and whether batch numbers link samples, production records, and shipping documents. Request data from multiple lots; one polished sample proves little. The UN Comtrade database can help buyers examine reported trade patterns, but product classifications may group related materials. Treat trade figures as context, not proof of a supplier’s capacity.

Also check lead times, packaging integrity, and the supplier’s process for handling rejected material. A small detail, such as damp powder inside a torn bag, can disrupt a whole production run.

Tips: Send a written specification before requesting quotations, then compare like-for-like offers. Ask for a retained sample from the quoted batch. If a supplier will not explain an unusual test result, pause. Price matters, but I would not treat it as the final verdict.

Who Are the Top 10 Strontium Suppliers in China?

China’s strontium supply chain includes mineral processors, chemical manufacturers, and trading companies. These are not interchangeable. A producer may offer strontium carbonate, while a trader may focus on small lots, export documents, and faster dispatch. Buyers comparing ten suppliers should check product form, purity, annual capacity, and whether production is in-house.

The USGS Mineral Commodity Summaries 2024 reports 100% net import reliance for U.S. strontium consumption. That figure highlights how concentrated supply can matter to buyers, even when sourcing from China. UN Comtrade classifies strontium carbonate under HS 283692, allowing trade flows to be tracked separately. Useful checks include a recent certificate of analysis, batch-level impurity data, and packaging details. Ask about moisture protection, too; fine powder can absorb water during storage.

A ranking is never fully clean. Some suppliers publish capacity, but few disclose comparable figures or independent audit results. That distinction is easy to miss. Request a sample and verify its calcium, barium, and iron levels against your process limits. Also confirm lead time in writing. A low quotation may not include testing, inland transport, or export packing. Real-world sourcing can be messy. One overlooked specification can outweigh a small price difference.

How Do Their Products and Capabilities Compare?

Comparing ten leading strontium suppliers is less about ranking names and more about matching products to process needs. Their ranges may include strontium carbonate, nitrate, hydroxide, and specialty grades, but availability and specifications vary. One supplier may offer tight particle-size control for ceramic batches; another may focus on consistent assay and dependable bulk packaging. These differences affect mixing, firing behavior, and production planning. Small details matter.

Capability is visible in the data behind a product. Check the stated purity, impurity limits, moisture level, particle-size distribution, and batch-test documentation. Ask whether sample results represent routine production, not just a carefully prepared trial lot. A specification can look tidy while leaving lot-to-lot variation unclear. That deserves a follow-up. Also compare packaging options, lead times, minimum order quantities, and how clearly technical questions are answered. Custom processing can be useful, though it may add time or cost. Price alone rarely shows the full picture. A practical comparison weighs product fit, quality controls, communication, and supply consistency against the buyer’s actual process requirements.

What Should Buyers Check Before Choosing a Supplier?

Before choosing a strontium (Sr) supplier, confirm the exact compound, grade, and application. Strontium carbonate, nitrate, and metal are not interchangeable. Request a recent certificate of analysis showing assay, moisture, particle size, and relevant impurity limits. Match the test method to your own specification; a high assay alone may not guarantee suitable performance. Ask for a batch sample and compare it with the production lot before placing a large order. Small differences matter.

Check traceability, production capacity, packaging, and delivery records. Ask whether the supplier manufactures the material or resells it, and request evidence for stated quality systems. The USGS Mineral Commodity Summaries 2024 reports roughly 400,000 metric tons of world celestite mine output in 2023. That figure describes ore, not finished Sr compounds, so it cannot verify a supplier’s product capacity. Request production and shipment records for the specific grade instead.

Also confirm moisture-resistant packaging, clear lot labels, and realistic lead times. A perfect-looking certificate is not enough. I would still test an independent sample; paperwork can miss process variation. Verify that the supplier can explain deviations and provide replacement or corrective-action terms in writing.

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