Redefining the standard of high purity aluminium products

We are sustainably producing a growing range of ultra-high purity aluminium oxides, hydroxides, nitrates and sulphates for a wide range of high technology industries including LED lighting, synthetic sapphire, semiconductors, and lithium-ion battery markets – at world-leading purity levels and at a dramatically lower carbon profile.

Our Product Range

We have redefined the standard of aluminium purification to produce sustainable, ultra-high purity aluminium products – available in commercial quantities.

Our Products
Ultra-High Purity Alumina (Al2O3) Powder TM
Finely engineered >99.995% (4N5) purity alpha (α) & gamma (γ) HPA to suit customer specifications including bespoke particle-sizing and specific surface areas (BET).
Our Products
Ultra-High Purity Alumina (Al2O3) Tablets TM
High purity >99.995% (4N5), high density sintered tablets made to bespoke shapes for synthetic sapphire growth.
Our Products
Ultra-High Purity Nano-Alumina (Al2O3) Powder TM
Alpha phase HPA high purity >99.99% (4N) nano-powders, with primary particles sizing down to 50nm, ideally suited for chemical mechanical planarization (CMP) slurries and LED nanophosphors.
Our Products
Ultra Boehmite (Al-O-OH) Powder TM
A bespoke engineered >99.995% (4N5) purity Boehmite to suit specific customer requirements. Includes very high dispersible (>95%) boehmites for sol-gel applications. Ideal for Chemical Mechanical Planarization (CMP) slurries and suitable for vaccine adjuvants.
Our Products
5N Ultra Aluminium Nitrate Al(NO3)3.9H2O TM
Our >99.999% (5N) purity aluminium nitrate is the purest product available at commercial scale. Available as crystal or solution. Key applications as a pre-cursor to lithium-ion electrode particle coating, micro-LED phosphors, Yttrium Aluminium Garnet (YAG) laser crystals and Chemical Mechanical Planarization (CMP) slurry oxidants.
Our Products
5N Ultra Aluminium Sulfate (Al2(SO4)3.16H2O) TM
Available in both hydrous and anhydrous form, our >99.999% (5N) aluminium sulfate is the purest product available at commercial scale. A premium product for synthesis of lithium-ion cathode materials including Nickel-Cobalt-Aluminium (NCA), Nickel-Cobalt-Manganese-Aluminium (NCMA) and Nickel-Manganese-Aluminium (NMA) chemistries.
Our Products
5N Ultra-High Purity Alumina Tri-Hydrate (AI(OH)3) TM
A >99.995% (4N5) purity alumina hydrate. World leading purity for this material, an ideal precursor for a range of ultra-pure ceramics and downstream processing.
Our Products
Ultra Sapphire (Al2O3) TM
Low carbon synthetic sapphire for bespoke shapes of synthetic sapphire utilising Alpha HPA’s ultra-high purity >99.995% (4N5), high density sintered tablets as feedstock.
“Our ability to quickly adapt to meet our customer needs is part of what sets us apart. The Alpha HPA process and our team is agile and flexible, allowing us to move swiftly and efficiently to deliver exceptional products to the market.”
– Alpha HPA Managing Director, Rimas Kairaitis

Applications for our product range

Our bespoke ultra-high purity aluminium products drive significant performance improvements for application across a range of in-demand industries such as electronics, optics, lighting and lithium-ion battery sectors.

Lithium-ion Batteries

Ceramic coated separators provide critical thermal management and mechanical stability to the lithium-ion battery cell. Our ultra-high purity aluminium materials are a key ingredient to the manufacture of safer, more efficient, long-lasting, fast-charging lithium-ion batteries. Alpha HPA’s ultra-pure aluminium materials have a range of critical applications across lithium-ion cells, including:

  • Ceramic coating media for battery separators
  • Custom Dopants for high nickel cathode materials
  • HPA for dry-coating cathode and anode particles
  • Aluminium precursors for NCA, NCMA and NMA cathodes
  • Aluminium precursors for aluminium-oxide coatings
Aluminium nitrate precursor for ultra coat process.
HPA Separator
HPA Coated separators provide critical thermal management.
Aluminium sulfate precursor for cathode doping, and HPA powders for dry-coating of high nickel cathode particles.

LED lighting

Our world-leading range of ultra-high purity aluminium materials are critical in the production of Light Emitting Diode (LED) lighting systems, assisting global LED manufacturers to create sustainable, high-efficiency micro and mini-LEDs. Synthetic sapphire wafer substrates made from high purity aluminium oxides are an essential component of LED lighting.


Our high purity alumina powders are ideally suited for premium LED aluminate phosphors (eg: YAG & LuAG).

electronics & optics

Our ultra-high purity aluminium materials are the critical, primary ingredient for synthetic sapphire, sought after for its extreme hardness, its ability to transmit in UV, visible and infrared wavelengths, and for its high-heat resistance and thermal conductivity. There is no substitute for high purity aluminium materials in the creation of synthetic sapphire – and purity is key.

Scratch resistant glass

Synthetic sapphire for luxury wristwatches, smartwatches, smartphones, and camera lenses.

HPA Salts

5N Ultra Aluminium Sulfate (Al2(SO4)3.16H2O)TM

  • Lithium-Ion Battery

5N Ultra Aluminium Nitrate (Al(NO3)3.9H2O)TM

  • Lithium-Ion Battery
  • LED lighting
  • Semi-conductor CMP polishing

HPA Aluminas

Ultra-High Purity Alumina (Al2O3) PowderTM

  • CMP Slurries
  • LED Nanophoshors
  • Lithium-Ion Battery

Ultra Boehmite (Al-O-OH) PowderTM

  • Sol-Gel Precursor
  • LED Lighting
  • Semi-conductor CMP polishing

Ultra-High Purity Nano-Alumina (Al2O3) PowderTM

  • Lithium-Ion Battery
  • LED Lighting
  • Semi-conductor CMP polishing

Ultra-High Purity Alumina (Al2O3) TabletsTM

  • LED Lighting
  • Synthetic Sapphire

5N Ultra-High Purity Alumina Tri-Hydrate (AI(OH)3)TM

  • Lithium-Ion Battery
  • Alumina Precursor

Ultra Sapphire (Al2O3)TM

  • Scratch Resistant Glass
  • Mini/Mirco LEDs

Our Ultra-Coat ProcessTM

Cathode and anode active material
particle coatings

By solving the accessibility of large volume, high purity aluminium nitrate, Alpha HPA has unlocked the potential of fast and affordable application of aluminium-oxide coatings onto both cathode and anode active materials. The process provides multiple battery performance benefits including improved safety and cycling retention, reduction in first cycle lithium loss and improved battery charging rates.

Our world-leading solvent extraction process has pinpoint like precision, enabling us to sustainably deliver ultra-high purity aluminium products to the world.
– Alpha HPA Executive Director and Chief Operations Officer, Rob Williamson