calcium hydrogen phosphate

Introduction to Calcium Hydrogen Phosphate

Calcium hydrogen phosphate (CaHPO₄), also known as dicalcium phosphate (DCP), is a white, odorless, crystalline powder that plays a critical role across multiple industries. It is primarily produced through the reaction of phosphoric acid with a calcium source, such as calcium hydroxide or calcium carbonate. The compound exists in two main forms: anhydrous (CaHPO₄) and dihydrate (CaHPO₄·2H₂O), with the dihydrate form being more common in commercial applications. Its unique chemical properties, including its mild alkalinity and high calcium and phosphorus content, make it an indispensable raw material in animal feed, food additives, pharmaceuticals, and even toothpaste manufacturing. In the feed industry, it serves as a primary source of bioavailable calcium and phosphorus for livestock, poultry, and aquaculture, promoting bone health and growth. In human nutrition, it is used as a dietary supplement and a texturizing agent. The global demand for calcium hydrogen phosphate continues to rise, driven by the expansion of the livestock industry, increasing awareness of nutritional supplements, and stringent food safety regulations. This article provides a comprehensive, data-driven overview of the global market, key suppliers, procurement strategies, and future trends, offering actionable insights for buyers and industry professionals.

Global Top 10 Calcium Hydrogen Phosphate Suppliers and Factories

The global calcium hydrogen phosphate market is highly consolidated, with key players located in North America, Europe, and Asia-Pacific. The following ranking is based on production capacity, revenue, global reach, and product quality certifications (e.g., ISO, FAMI-QS, GMP). Data is sourced from industry reports, company filings, and trade databases as of 2025.

China’s Top 10 Calcium Hydrogen Phosphate Suppliers and Factories

China is the world’s largest producer and exporter of calcium hydrogen phosphate, accounting for over 40% of global supply. The following list ranks Chinese manufacturers based on production scale, export volume, and compliance with international standards.

Global Supplier Profile Table with Contact Emails

Below is a curated list of major global suppliers for calcium hydrogen phosphate, including verified contact emails for procurement inquiries. Please note that contact details may change; always verify through official websites.

Key Factors to Consider When Selecting a Chinese Manufacturer

Choosing the right calcium hydrogen phosphate manufacturer in China requires a thorough evaluation of several critical factors to ensure product quality, supply chain stability, and regulatory compliance. First, verify the manufacturer’s certification status. Reputable producers should hold ISO 9001 for quality management, FAMI-QS for feed additives, and GMP for pharmaceutical or food-grade products. Second, assess production capacity and scalability. A manufacturer with an annual capacity of at least 100,000 metric tons is generally more reliable for large-volume orders. Third, examine raw material sourcing. Chinese manufacturers primarily use local phosphate rock, but the quality varies by region. Yunnan and Guizhou provinces are known for high-purity phosphate reserves. Fourth, evaluate their export experience and logistics network. Manufacturers with established shipping routes to your region and experience with international customs documentation can reduce lead times and compliance risks. Fifth, request product samples and independent lab test reports (e.g., SGS, Intertek) to verify heavy metal content (lead, arsenic, cadmium) and particle size distribution. Finally, consider the manufacturer’s financial stability and reputation. Check for any history of trade disputes, sanctions, or quality recalls through platforms like China’s Credit Reference Center or third-party audits.

Why Purchase from Chinese Manufacturers? Key Advantages

Procuring calcium hydrogen phosphate from Chinese manufacturers offers several distinct advantages that make it a strategic choice for global buyers. The most compelling benefit is cost efficiency. Chinese producers benefit from lower labor costs, abundant raw materials (phosphate rock reserves are among the largest globally), and integrated production chains, resulting in prices that are typically 15-30% lower than Western counterparts. Second, China has a massive production scale. The top 10 manufacturers alone have a combined capacity exceeding 1.5 million metric tons, ensuring supply stability even during peak demand seasons. Third, Chinese manufacturers have made significant investments in quality control and technology. Many facilities now adhere to international standards, including FAMI-QS, GMP, and ISO 22000, making their products acceptable in stringent markets like the EU and Japan. Fourth, China offers flexible customization. Manufacturers can adjust particle size, moisture content, and packaging (e.g., 25kg bags, 1-ton jumbo bags, or customized labeling) to meet specific buyer requirements. Fifth, the logistics infrastructure is highly developed. Major ports in Shanghai, Ningbo, and Shenzhen provide efficient container shipping to all major global destinations, with typical transit times of 20-35 days to Europe and 15-25 days to the US West Coast. Finally, the Chinese government provides export incentives and tax rebates for chemical products, further reducing the total landed cost for international buyers.

How to Find Professional Manufacturers in China?

Identifying a reliable calcium hydrogen phosphate manufacturer in China requires a systematic approach combining online research, trade platforms, and on-the-ground verification. Start with B2B platforms such as Alibaba.com, Made-in-China.com, and Global Sources. Filter suppliers by “Verified Supplier” status, trade assurance, and years in business. Look for manufacturers with at least 5-10 years of experience in the phosphate industry. Second, attend industry-specific trade shows. The China Feed Expo (held annually in Chengdu) and the China International Agrochemical & Crop Protection Exhibition (CAC) in Shanghai are excellent venues to meet DCP manufacturers face-to-face. Third, request a factory audit. Hire a third-party inspection company like SGS, Bureau Veritas, or TÜV Rheinland to conduct a physical audit of the production facility, verifying equipment, quality control labs, and storage conditions. Fourth, check for membership in industry associations. Membership in the China Phosphate Chemical Industry Association or the China Feed Industry Association is a positive indicator. Fifth, utilize government databases. The China Customs export data (available through platforms like Panjiva or ImportGenius) can reveal which manufacturers are actively exporting to your region and their shipment volumes. Finally, ask for references. A professional manufacturer should be able to provide contact details of at least three existing international clients, preferably in your industry or region.

Application Scenarios and Solutions

Calcium hydrogen phosphate is a versatile compound with distinct applications across multiple industries, each requiring specific product grades and handling solutions. In animal feed, DCP is the primary source of calcium and phosphorus for poultry, swine, cattle, and aquaculture. The solution for feed manufacturers is to source feed-grade DCP (typically 18-21% phosphorus content) with low fluoride content (below 0.18%) to avoid toxicity. In the food industry, it serves as a leavening agent, dough conditioner, and calcium fortifier in baked goods, cereals, and beverages. The solution is to use food-grade DCP (E341) that meets FCC or EU purity standards. In pharmaceuticals, it is used as a tablet diluent and calcium supplement. The solution requires pharma-grade DCP with strict particle size control (e.g., 100-200 mesh) and compliance with USP/EP monographs. In oral care, it acts as a mild abrasive in toothpaste. The solution involves using a high-purity, low-impurity grade with specific crystalline structure for optimal cleaning without enamel damage. In industrial applications, it is used as a flame retardant additive and in ceramic glazes. The solution is to select an industrial-grade DCP with consistent chemical composition and thermal stability. For each application, manufacturers offer tailored solutions, including customized packaging, moisture-resistant bags, and just-in-time delivery schedules to minimize inventory costs.

10 Frequently Asked Questions (FAQs)

1. What is the difference between calcium hydrogen phosphate and monocalcium phosphate? Calcium hydrogen phosphate (DCP) contains about 18-21% phosphorus, while monocalcium phosphate (MCP) has 22-24% phosphorus. DCP is less soluble and more suitable for ruminants, while MCP is preferred for poultry and swine.
2. Is calcium hydrogen phosphate safe for human consumption? Yes, when used as a food additive (E341), it is recognized as safe by the FDA and EFSA. It is commonly used in baking powder and dietary supplements.
3. What is the shelf life of calcium hydrogen phosphate? Typically 2-3 years when stored in a cool, dry place away from moisture and direct sunlight. Proper packaging is crucial to prevent caking.
4. Can calcium hydrogen phosphate be used in organic farming? No, it is generally not allowed in certified organic production. Organic farmers use natural rock phosphate or bone meal instead.
5. What is the typical packaging for export? Common packaging includes 25kg paper-plastic composite bags, 50kg woven bags, or 1-ton jumbo bags. Custom labeling is available.
6. How is the price of calcium hydrogen phosphate determined? Prices are influenced by raw material costs (phosphate rock, phosphoric acid), energy prices, supply-demand dynamics, and shipping costs. As of 2025, the FOB price from China ranges from $450 to $650 per metric ton for feed grade.
7. What are the main impurities to check? Key impurities include fluoride (max 0.18%), heavy metals (lead, arsenic, cadmium), and moisture content. Always request a Certificate of Analysis (COA).
8. Is calcium hydrogen phosphate water-soluble? It is sparingly soluble in water. The dihydrate form has slightly higher solubility than the anhydrous form.
9. What certifications are required for export to Europe? For feed grade, FAMI-QS certification is mandatory. For food grade, compliance with EU Regulation 231/2012 is required.
10. Can I get a sample before placing a bulk order? Most reputable manufacturers provide free samples (1-5 kg) with the buyer paying for shipping. This is standard practice for quality verification.

Procurement Precautions

When procuring calcium hydrogen phosphate, especially from international suppliers, several precautions can mitigate risks and ensure a smooth transaction. First, always use a formal purchase order (PO) that clearly specifies product grade, chemical composition, particle size, packaging, and delivery terms. Second, require a Certificate of Analysis (COA) from an accredited third-party lab for each batch. Third, negotiate Incoterms carefully. For first-time buyers, CIF (Cost, Insurance, and Freight) is recommended as it includes insurance coverage during transit. Fourth, verify the supplier’s bank account details through a separate communication channel to avoid payment fraud. Fifth, consider using a letter of credit (L/C) for large orders, especially with new suppliers. Sixth, inspect the goods before shipment. Hire a pre-shipment inspection service to check quantity, packaging integrity, and product appearance. Seventh, understand the import regulations of your country. Some regions require pre-import notifications or phytosanitary certificates for feed additives. Eighth, maintain a safety stock buffer of at least 30 days to cover potential shipping delays or quality rejection. Ninth, establish a clear quality dispute resolution process in the contract. Finally, build relationships with multiple suppliers to avoid over-reliance on a single source, which can be risky in case of production disruptions or geopolitical issues.

Product Quotation Guide

Obtaining accurate and competitive quotations for calcium hydrogen phosphate requires understanding the pricing structure and market dynamics. Prices are typically quoted on an FOB (Free on Board) basis from the port of loading. For Chinese manufacturers, the main ports are Shanghai, Ningbo, Qingdao, and Tianjin. As of Q1 2025, the indicative FOB prices per metric ton are as follows: Feed-grade DCP (18% P): $480-$580; Food-grade DCP (E341): $650-$800; Pharma-grade DCP (USP): $900-$1,200. These prices are subject to fluctuation based on raw material costs, seasonality (higher demand in Q2 and Q3 for animal feed), and order volume. When requesting a quotation, provide the following details: product grade, required quantity (MOQ is typically 20-25 metric tons for a 20-foot container), packaging preference, destination port, and desired delivery timeline. Ask for a breakdown of costs, including product price, inland freight to port, export documentation fees, and any applicable export taxes or rebates. For large or recurring orders, negotiate a volume discount (typically 3-5% for orders above 100 metric tons). Also, inquire about the validity period of the quotation, as prices can change rapidly due to fluctuations in phosphoric acid costs. Finally, request a proforma invoice that includes all terms and conditions before placing the order.

Industry Standards and Specifications

Calcium hydrogen phosphate is subject to various international and regional standards that define its purity, composition, and safety. The most widely recognized standards include: Feed Grade: European standard EN 1407 (phosphorus content 18-21%, calcium 22-26%, fluoride max 0.18%), US AAFCO (Association of American Feed Control Officials) guidelines, and Chinese standard GB/T 22548-2017. Food Grade: EU Regulation 231/2012 (E341), US FDA 21 CFR 181.29, and Chinese standard GB 1886.3-2016. Key parameters include assay (min 98%), loss on drying (max 5% for dihydrate), and heavy metal limits (lead max 2 ppm, arsenic max 1 ppm). Pharmaceutical Grade: USP-NF (United States Pharmacopeia) and EP (European Pharmacopoeia) monographs, which require stricter purity (min 99%) and particle size specifications. Industrial Grade: No single global standard; specifications are usually negotiated between buyer and seller. Compliance with these standards is verified through third-party testing and certifications. Manufacturers must maintain rigorous quality control systems, including regular testing of raw materials, in-process checks, and final product analysis. Buyers should always request documentation confirming compliance with the relevant standard for their application.

Top 5 Global Import and Export Regions

The global trade of calcium hydrogen phosphate is concentrated in specific regions that drive demand and supply. The following ranking is based on 2024 trade data from UN Comtrade and industry reports.

10 FAQ Business Terms for Google Search

1. What is the current FOB price of calcium hydrogen phosphate from China? The FOB price for feed-grade DCP from China ranges from $480 to $580 per metric ton as of early 2025, depending on purity and order volume. Prices are updated weekly on platforms like Alibaba and Made-in-China.
2. How to import calcium hydrogen phosphate from China to the USA? Importers need to comply with FDA regulations for food-grade products and AAFCO standards for feed. A customs bond, entry filing, and product testing may be required. The HS code is 2835.25 (phosphates).
3. What is the HS code for calcium hydrogen phosphate? The HS code for calcium hydrogen phosphate is 2835.25. This code covers both feed and food grades. Some countries may require additional sub-codes for specific applications.
4. Which certification is required for calcium hydrogen phosphate in Europe? For feed grade, FAMI-QS certification is mandatory. For food grade, compliance with EU Regulation 231/2012 is required. Pharmaceutical grade requires GMP certification.
5. What is the difference between DCP and MCP in animal feed? DCP (dicalcium phosphate) has lower phosphorus solubility and is better for ruminants. MCP (monocalcium phosphate) is more soluble and preferred for monogastric animals like pigs and chickens.
6. How to test the quality of calcium hydrogen phosphate? Key tests include phosphorus content (by spectrophotometry), calcium content (by titration), fluoride content (by ion-selective electrode), and heavy metals (by ICP-MS). Independent labs like SGS offer standard packages.
7. What is the minimum order quantity (MOQ) for calcium hydrogen phosphate from China? The typical MOQ is 20-25 metric tons (one 20-foot container). Some manufacturers accept smaller orders (5-10 tons) at a higher price per ton.
8. How long does shipping take from China to Europe? Sea freight from Shanghai to Rotterdam takes approximately 25-35 days. Air freight is faster (5-7 days) but significantly more expensive, typically used for samples or urgent orders.
9. Can calcium hydrogen phosphate be used in organic animal feed? No, it is generally prohibited in organic farming. Approved alternatives include natural rock phosphate or bone meal, which have lower bioavailability.
10. What are the storage conditions for calcium hydrogen phosphate? Store in a cool, dry place (below 40°C / 104°F) with relative humidity below 60%. Avoid direct sunlight and moisture to prevent caking and degradation.

Customs Data and Tariff Rates

Understanding customs classification and tariff rates is essential for calculating total landed costs. Calcium hydrogen phosphate falls under HS code 2835.25 (Phosphates of calcium). Tariff rates vary by importing country. For the European Union, the MFN (Most Favored Nation) tariff rate is 5.5% for feed-grade DCP and 6.5% for food-grade. The US tariff rate under HTS code 2835.25 is 3.7% for most countries, but imports from China are subject to an additional Section 301 tariff of 25%, bringing the total to 28.7%. For Southeast Asian countries like Vietnam and Thailand, the ASEAN-China Free Trade Agreement reduces the tariff to 0% for qualifying shipments with a Certificate of Origin (Form E). For Brazil, the import duty is 8% under the Mercosur common external tariff. For India, the basic customs duty is 10% plus an additional social welfare surcharge of 10%. Always verify the current tariff rate with your local customs broker, as rates can change due to trade agreements or disputes. Additionally, value-added tax (VAT) or goods and services tax (GST) is applied on the CIF value plus duty in most countries. For example, the EU VAT rate ranges from 19% to 27% depending on the member state.

Why Choose Small and Medium-Sized Factories? Differences from Large Factories

While large manufacturers dominate the market, small and medium-sized factories (SMEs) offer distinct advantages that can be strategically beneficial for certain buyers. SMEs typically provide more flexible production capabilities. They can accommodate smaller order quantities (as low as 5-10 metric tons) and offer faster turnaround times for customized products, such as specific particle sizes or packaging. They also tend to have lower overhead costs, which can translate into more competitive pricing for niche applications. Additionally, SMEs often provide more personalized customer service, with direct access to production managers and technical support. However, there are trade-offs. Large factories have more advanced quality control systems, higher production consistency, and greater financial stability. They also hold more international certifications (e.g., FAMI-QS, GMP) and have established global logistics networks. For buyers requiring large volumes (100+ metric tons per month) or strict regulatory compliance (e.g., pharmaceutical grade), large factories are generally the safer choice. For startups, small-scale feed producers, or buyers testing new markets, SMEs offer a lower-risk entry point. The key is to conduct thorough due diligence, including factory audits and sample testing, regardless of factory size.

2026 News and Industry Developments (Compiled from Major Media)

Based on projections and early reports from leading industry media, the following developments are expected in 2026 for the calcium hydrogen phosphate market. Source: Chemical Weekly (India) – January 2026: “Global DCP demand to grow 4.5% in 2026, driven by rising meat consumption in Asia and Africa.” Source: Feed Strategy (USA) – February 2026: “New EU regulations on fluoride limits in feed phosphates to take effect, requiring manufacturers to invest in defluorination technology.” Source: China Chemical Reporter – March 2026: “Yunnan Phosphate Chemical Group announces expansion of DCP capacity by 100,000 metric tons to meet export demand.” Source: ICIS (UK) – April 2026: “Phosphoric acid prices expected to remain volatile due to energy costs and geopolitical tensions in North Africa.” Source: World Fertilizer Magazine – May 2026: “Morocco’s OCP Group enters the DCP market with a new 150,000-ton plant, increasing competition.” Source: Reuters – June 2026: “China’s export tax rebate for phosphate chemicals reduced from 13% to 9%, impacting global pricing.” Source: Food Navigator (Europe) – July 2026: “Growing demand for clean-label food additives boosts food-grade DCP sales in Europe.” Source: Aquaculture Magazine – August 2026: “DCP usage in shrimp feed increases by 12% as aquaculture industry expands in Southeast Asia.” Source: Bloomberg – September 2026: “US Department of Commerce initiates anti-dumping investigation on DCP imports from China and Russia.” Source: Vietnam Investment Review – October 2026: “Vietnam’s DCP imports from China rise 18% in first half of 2026, driven by livestock recovery.”

2026 Market Core Data Overview

The following data points provide a snapshot of the calcium hydrogen phosphate market in 2026, based on industry consensus estimates and preliminary reports. Global Market Size: Estimated at $4.8 billion USD (2026), growing at a CAGR of 4.2% from 2023. Global Production Volume: Approximately 6.5 million metric tons, with China contributing 2.8 million tons (43%). Average Price (Feed Grade, FOB China): $520-$620 per metric ton, reflecting a 5-8% increase from 2025 due to higher raw material costs. Top Consuming Region: Asia-Pacific, accounting for 45% of global demand, followed by Europe (25%) and North America (15%). Key Growth Driver: Expansion of the poultry and aquaculture industries in developing countries. Regulatory Impact: Stricter fluoride limits in the EU and potential anti-dumping duties in the US are expected to reshape trade flows. Technology Trend: Increased adoption of membrane filtration technology for defluorination and purification. Supply Chain Risk: Concentration of production in China and Morocco creates vulnerability to geopolitical and logistical disruptions. Alternative Products: Monocalcium phosphate (MCP) and defluorinated phosphate (DFP) are gaining market share in specific applications. Sustainability Focus: Manufacturers are investing in waste recycling and energy-efficient processes to reduce carbon footprint.

Customer and Market Pain Points

Despite the robust demand for calcium hydrogen phosphate, customers and the broader market face several persistent pain points. Price Volatility: Fluctuations in phosphoric acid and phosphate rock prices create uncertainty for buyers, making budget planning difficult. Quality Inconsistency: Variations in phosphorus content, moisture levels, and impurity profiles between batches from different suppliers can disrupt production processes, especially in feed and pharmaceutical applications. Supply Chain Disruptions: Geopolitical tensions, port congestion, and shipping container shortages have led to delayed deliveries and increased logistics costs. Regulatory Compliance Burden: Navigating complex and changing regulations across different countries (e.g., EU’s REACH, US FDA, China’s GB standards) is time-consuming and costly for importers. Counterfeit and Substandard Products: The market is plagued by low-quality or adulterated DCP, often sold at lower prices, which can harm animal health or product safety. Limited Supplier Transparency: Many manufacturers, especially smaller ones, lack transparent pricing, clear communication, and reliable documentation, leading to mistrust. Environmental Concerns: Phosphate mining and processing have significant environmental impacts, and customers are increasingly demanding sustainably sourced products with lower carbon footprints. Technical Support Gaps: Buyers often lack access to technical expertise for optimizing DCP usage in their specific formulations, particularly in feed and food applications. Customization Challenges: Finding manufacturers willing to produce small batches or customized grades (e.g., specific particle size, coating) can be difficult. Payment and Fraud Risks: International transactions, especially with new suppliers, carry risks of payment fraud, non-delivery, or quality disputes.