Boron ranges from less than a dollar per kilogram in bulk industrial form to over $7 per gram for high-purity elemental samples. The price depends entirely on what form you need: raw borate ore, refined powder, agricultural fertilizer, dietary supplements, or enriched isotopes for nuclear applications. Here’s what each costs and why.
Bulk Industrial Boron
Most boron enters the market not as a pure element but as borate compounds, primarily borax and boric acid. These are priced based on their boron oxide content, and the presence or absence of calcium and sodium in the compound affects the final cost. According to U.S. Geological Survey data, the average unit value of imported boron compounds in 2023 was roughly $620 per metric ton. That works out to about $0.62 per kilogram, making industrial boron one of the more affordable mineral commodities.
Turkey dominates global borate production, and the United States is the other major supplier. This concentrated supply chain means pricing can shift based on export policies, mining output, and transportation costs. Extracting boron from concentrated brines (saltwater deposits) runs 30% to 50% cheaper than mining it from ore, since the process skips the energy-intensive steps of breaking down and dissolving rock.
Pure Elemental Boron
If you need boron in its elemental form rather than as a compound, the price jumps dramatically. Crushed crystalline boron at 99.99% purity sells for around $18.00 per 2.5 grams from specialty suppliers. That’s roughly $7.20 per gram. The steep markup reflects the difficulty of isolating pure boron from its naturally occurring compounds. Producing high-purity boron requires multiple rounds of chemical reduction and purification, which is both energy-intensive and technically demanding.
Lower purity levels (around 95% to 99%) cost significantly less, typically a few dollars per gram depending on quantity. Researchers, materials scientists, and element collectors are the primary buyers at these price points.
Agricultural Fertilizer Grades
Farmers use boron as a micronutrient fertilizer, and pricing sits between industrial bulk and pure element. Water-soluble boron fertilizer (15% to 21% boron content) typically costs $1,800 to $2,000 per metric ton for orders of one ton or more. Soluble boron products designed for specific crops like corn fall in the $1,900 to $2,000 range per ton.
Buying in very large quantities drops the price considerably. Orders of 1,000 tons or more for granular boron fertilizer can run as low as $90 to $100 per ton, though these prices reflect lower boron concentrations blended with other trace elements. Liquid boron fertilizer products have a wider price range of $1,000 to $9,000 per ton depending on concentration and formulation. For small-scale use, soluble boron fertilizer is available at roughly $1.50 to $3.00 per kilogram.
Dietary Supplements
Boron supplements, commonly sold as boron citrate or boron glycinate, are widely available at consumer-friendly prices. A typical product offers 240 capsules at 3 to 10 mg each for $10 to $20 per bottle. That puts the cost per daily dose in the range of a few cents. Boron supplements are among the least expensive micronutrient products on the market, partly because the amount of actual boron per capsule is measured in milligrams, a tiny fraction of a gram.
Enriched Boron-10 for Nuclear Use
The most expensive form of boron is the enriched isotope boron-10, used as a neutron absorber in nuclear reactor control and in specialized medical therapies. Natural boron contains about 20% boron-10, and enriching it to higher concentrations requires isotope separation, a slow and costly process.
Historical production estimates from the Nuclear Materials and Equipment Corporation give a sense of the cost curve. At 30% enrichment, boron-10 cost around $0.40 per gram. At 50%, the price climbed to $0.95 per gram. At the highest enrichment level of 91.3%, it reached $3.16 per gram, with annual production capacity dropping to just 650 kilograms. Projected costs with scaled-up equipment were lower, potentially around $0.17 per gram for 60% enrichment, but actual market prices depend on demand from the nuclear industry and available production capacity.
Why Prices Vary So Much
The enormous spread in boron pricing, from $0.62 per kilogram for industrial borate to $7.20 per gram for pure element, comes down to processing complexity. Borate minerals are relatively abundant and easy to mine. Refining those minerals into pure boron or separating specific isotopes requires progressively more energy, specialized equipment, and technical expertise. Each step up in purity multiplies the cost.
The global boron market was valued at $3.56 billion in 2025 and is projected to grow at about 4.9% annually through 2034, reaching $5.48 billion. That growth is driven by expanding demand in glass manufacturing, ceramics, agriculture, and advanced materials like boron nitride and boron carbide. Rising demand for electric vehicles and renewable energy technologies, which use boron in magnets and specialty glass, is expected to keep upward pressure on prices across most product categories.