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PYROXENITE  FOR ENHANCED ROCK WEATHERING
(ERW)

Orex Mining Company FZCO is a UAE-based mining company with an established pyroxenite mining facility in the United Arab Emirates. The company supplies and exports high-quality pyroxenite in large volumes to major international markets. Pyroxenite is a mineral-rich ultramafic rock suitable for Enhanced Rock Weathering (ERW), an emerging nature-based solution for permanent carbon dioxide removal. When finely ground and applied to soils, pyroxenite naturally reacts with atmospheric COâ‚‚, helping capture carbon while also improving soil fertility through the release of beneficial minerals such as calcium and magnesium. With reliable reserves and strong export capabilities, Orex Mining supports global ERW initiatives and sustainable agriculture projects worldwide.

Key Aspects of Pyroxenite in Agriculture

• Nutrient Source: Pyroxenite is rich in magnesium- and iron-rich minerals. It is used to enhance soil nutrient profiles, particularly in tropical, acid, and nutrient-depleted soils. • Slow-Release Fertilizer: As a silicate rock, it acts as a slow-release fertilizer, which can help reduce nutrient runoff compared to conventional, fast-acting chemical fertilizers. • Specific Applications: Research indicates that the fine fraction of weathered pyroxenite, particularly when associated with phosphate, can serve as a valuable, inexpensive fertilizer for crops. • Soil Amendment: Due to its magnesium content, it is considered a suitable amendment for magnesium-deficient soils, acting similarly to other magnesium silicates.

Harvesting Wheat Field

TECHNICAL & ECONOMIC BENEFITS

Aerial Harvest Scene

1

Superior Carbon Capture Potential Superior Carbon Capture Potential

Compared to standard basalt:

  1. Greater reactive Mg-silicate concentration

  2. Higher COâ‚‚ capture per ton of rock

  3. Reduced grinding requirement for similar reactivity

Result: Lower cost per ton of COâ‚‚ removed.

2

Economic Efficiency

  1. Higher COâ‚‚ removal per ton → lower material requirement

  2. Competitive mining costs from UAE operation

  3. Bulk shipping advantages via integrated logistics

  4. Lower cost per verified carbon credit

  5. Strong scalability potential

3

Soil & Agronomic Benefits

  1. Soil pH buffering

  2. Magnesium enrichment

  3. Trace mineral supplementation

  4. Potential yield improvements in acidic soils

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