SwissX Island, located in Antigua, has made significant strides in its regenerative agriculture and cannabis cultivation initiatives by releasing independent laboratory analysis results for its proprietary carbonized supercompost soil amendment.

Developed using locally sourced organic waste through long-cycle fermentation methods, this innovative material has been independently tested by the Department of Analytical Services in Antigua, directed by Linroy Christian.

The supercompost is created from:

  • recovered sargassum biomass from coastal areas near Jumby Bay,
  • coconut and neem organics,
  • rescued farm animal manure,
  • naturally occurring microbial cultures,
  • and fermentation agents, including white vinegar and molasses-based sugar compounds.

This composting process occurs over approximately six months in bio-reactor fermentation systems on-site at SwissX Island.

Post-fermentation, the materials undergo carbonization in a proprietary biochar pyrolysis oven called Gloria, yielding a “38% fixed-carbon supercompost” intended for regenerative farming and improved soil health.

Key findings from the laboratory analysis include:

  • Fixed Carbon: 38%
  • Organic Matter: 39.92%
  • pH: 7.39
  • Potassium: 30,000 mg/kg
  • Moisture Content: 3.61%
  • Nitrate Nitrogen: 278.6 mg/kg
  • Phosphate: 56.50 mg/kg
  • Warnings: Salmonella spp. Absent; E. coli less than 3

These results indicate favorable characteristics for agricultural applications, including a near-neutral pH and low moisture content. The high potassium content is beneficial for flowering crops and drought resilience, particularly in tropical climates.

The supercompost has already seen experimental use within Antigua's emerging cannabis cultivation industry and local farming initiatives linked to Rastafarian groups focused on organic and regenerative farming.

SwissX aims to develop a locally sourced soil amendment that addresses key agricultural challenges by:

  • improving degraded soils,
  • reducing dependency on fertilizers,
  • enhancing water retention during droughts,
  • and maintaining stable long-term carbon levels in agriculture.

The company also looks to align the product with agricultural carbon markets and sustainable farming programs, potentially providing growers access to reimbursement or cost-share opportunities through USDA conservation pathways.

Retail pricing for the BioChar Active SuperCompost Blend is set at EC$75 for a 10 lb bag, targeting home growers and small-scale producers across the Caribbean. Future testing will expand on the product’s laboratory credentials, including carbon stability and heavy metals screening.

The lab report was issued under Lab ID SWX-2026/01-01, securing SwissX Island's standing in the sustainable agriculture landscape of Antigua.