01 / 08
MagVanta process
Deposit
A rock that is half carbon dioxide
Slightly more than half of magnesite is carbon dioxide, bound in a lattice.
52.20% leaves as carbon dioxide on calcining
US specialty magnesium company
Magnesium oxide and magnesium hydroxide, tested and documented in the United States.Specified. Verified. Delivered.
Five grades, held in US stock.
- US-verified quality, independently tested in a US laboratory
- US-stocked inventory, ready to ship on a domestic lead time
- COA on every lot, with full specifications documented
Ground to finished product
The whole chain, managed end to end and documented at every step.
Eight stages, from the deposit to your dock. Every one is specified, controlled, and documented, so the material you receive carries its full history with it.
02 / 08
MagVanta process
Geology
Two rocks, two futures
Two formation routes. One carries silica between grains, one carries iron inside the lattice.
Outside vs inside between grains it can be removed. Inside the lattice it cannot.
03 / 08
MagVanta process
Beneficiation
The last chance to remove anything
Everything removable comes out before the kiln. After it, nothing does.
2.38% to 0.25% silica, in a published flotation example
04 / 08
MagVanta process
Calcination
The fire that decides everything
Between 700 and 1000 degrees the carbonate leaves and the structure collapses to its most reactive form.
700 to 1000 °C the caustic calcined band
05 / 08
MagVanta process
Reactivity
Two lots. Same assay. Different product.
Two lots can share an assay and behave nothing alike. Thermal history is the difference.
98.0% MgO. Both. the same assay on two lots that behave nothing alike
06 / 08
MagVanta process
Hydroxide
Water goes back in
Water goes back in. The oxide takes it up and the mass grows by nearly half.
+44.7% added as water of constitution
07 / 08
MagVanta process
US verification
A certificate is only worth the testing behind it
Every lot is sampled, tested in a US laboratory, and released only against the MagVanta specification.
Every pharma lot independently tested in the US, and any lot on request
08 / 08
Now yours
NOW IT'S YOURS
Verified, documented, US-stocked, and released to your process with a complete lot record.
Request a Quote Request a sample
One mineral, five grades, matched to the job you need done.
Provenance
A documented chain of custody on every lot.
Every MagVanta lot ships with a complete documentation and chain of custody record: origin, processing and calcination, US test results, and warehouse release. Your quality and regulatory teams get one file that accounts for the material from source to dock.
Per-lot digital verification, giving each lot a scannable record of its own, is being rolled out.
Why buy domestically
What changes when your magnesia ships from a US warehouse.
Six differences you can hold us to.
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01
Independent US lab testing
A certificate for the lot you actually bought, from an independent US laboratory.
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02
US warehouse inventory
Your lead time is a truck, not an ocean crossing.
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03
English-language technical support
A technical answer in your time zone, during hours you actually work.
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04
US law, US contracts
You contract with a US company, under US law, in a US forum.
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05
A delivered price that holds
One firm US price, quoted delivered, carrying the risk you would otherwise carry.
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06
A documented chain of custody
One file per lot, accounting for the material from source to your dock.
Proven material
This magnesia is already working in demanding markets.
Independent trade records show the high-reactivity magnesia MagVanta supplies shipping to 18 countries across 4 continents, 44 documented shipments across 2024 to 2026. It has already landed in the United States and been used by a US industrial buyer.
- Countries
- 18
- Continents
- 4
- Shipments
- 44
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Europe
8 countries, 21 shipments. Netherlands, Finland, Turkey, Greece, France, Germany, Slovenia, Romania.
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Asia and the Middle East
5 countries, 13 shipments. Sri Lanka, Qatar, Philippines, China, Iraq.
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The Americas
4 countries, 9 shipments. United States, Ecuador, Costa Rica, Brazil.
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Africa
1 country, 1 shipment. South Africa.
Corroboration
The trade records call it high reactivity. We did not write them.
Across those same independent records, this magnesia is repeatedly described in the shipping documentation itself as high reactivity. The way we position this material is not a phrase we invented for a website. It is how the material is already described where it moves, by people with no interest in how we sell it.
Source: independent trade data. Figures are shipment records in the period rather than a count of end customers.
Product line
Five grades, specified for what they actually have to do.
Purity gets a grade through your door. Reactivity decides whether it performs. Tell us the job and we will name the grade, verified and documented, and traceable to source.
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Caustic-calcined, 97% MgO, agricultural and environmental
The industrial workhorse: high-reactivity caustic calcined magnesia at volume.
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Caustic-calcined, 98% MgO, technical
Low-iron technical magnesia for rubber, paper, fuel and drilling systems.
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Pharmaceutical and supplement grade, 99% MgO
Pharmaceutical and supplement grade magnesium oxide for supplement, antacid and personal care formulation.
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Very-high-reactivity, 99% MgO
Our highest-surface-area magnesia, for systems where reaction speed is the specification.
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Pharmaceutical and supplement grade, 99% magnesium hydroxide
Pharmaceutical and supplement grade magnesium hydroxide for ingredient use and halogen-free flame retardancy.
The technical story
Lead with reactivity, not just purity.
Two lots can assay identically and behave nothing alike. Thermal history, not assay, decides how a grade performs, and our per-lot verification captures it, so the certificate describes how the material behaves rather than only what is in it.
- VHR
- 12 to 20 s
- HR
- 20 to 30 s
Citric acid reactivity. Fewer seconds means faster, and faster means less material to reach the same effect.
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Fast pH neutralization
High surface area closes the speed gap against caustic soda, and the pH caps itself near 9 to 10.5 instead of running past 12.
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Consistent reactivity in feed and supplement grades
A specified activity window makes the certificate describe how the material behaves, not just what is in it.
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Surface area in flame retardancy
At the loading halogen-free flame retardancy needs, particle size and shape decide whether the compound survives it.
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Consistency in industrial process chemistry
In rubber, activity sets scorch time. A drift between lots is a drift in processing safety on your mill.
Applications
Five segments, five different definitions of the right grade.
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Segment 01
Supplement and pharma
Pharmaceutical grades for supplement, antacid and personal care formulation.
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Segment 02
Feed and agriculture
Feed and agricultural grades, reactivity verified per lot.
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Segment 03
Water treatment
Self-limiting pH correction that will not overshoot.
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Segment 04
Flame retardants
Halogen-free flame retardant for high-temperature compounding.
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Segment 05
Industrial
Low-iron technical grades for rubber, paper, fuel and drilling.
What stands behind every lot.
MagVanta magnesium is manufactured to specification under FDA-registered, ISO 9001:2015 certified quality systems, then tested and released to the MagVanta specification in the United States. What you buy is a US-tested product, from a US company, with a delivered US price and complete lot documentation behind it.
Get a quote with a lead time you can plan around.
Tell us the grade, the volume and the application. We will come back with a delivered US price, current stock position, and the full documentation package for that grade.