Annual operating expenses, labor, maintenance 

1. Labor Costs

TaskDescriptionEstimated Annual Cost (USD/ha)
Plantation maintenancePruning, weeding, mulching, irrigation$1,500–2,500
Inoculation & monitoringWounding, fungal/dual-action inoculant application, post-inoculation checks$800–1,500
HarvestingResin collection, chip preparation, grading$1,000–2,000
Nursery support (if operating)Seedling care, propagation, transplanting$500–1,000
Administrative / supervisionRecord-keeping, reporting, quality control$500–1,000

Total Labor: ~$4,300–8,000 per hectare per year

2. Maintenance and Inputs

ItemDescriptionEstimated Annual Cost (USD/ha)
Fertilizers & soil amendmentsOrganic compost, mycorrhizae, foliar sprays$300–600
Irrigation maintenancePump servicing, piping repair, water charges$200–500
Pest & disease managementBiocontrol agents, safe fungicides, monitoring tools$150–400
Tools & equipmentPruning tools, drills, wounding implements, replacement parts$200–400
Shade nets / agroforestry supportRepair or replacement of structures$100–300

Total Maintenance & Inputs: ~$950–2,200 per hectare per year

3. Post-Harvest and Processing

ItemDescriptionEstimated Annual Cost (USD/ha)
Drying & curingSheltered racks, ventilated rooms, racks maintenance$100–300
Packaging & storageAirtight containers, labels, inventory management$150–300
Oil extraction (small-scale)Steam distillation fuel/energy, minor repairs$500–1,500

Total Post-Harvest Costs: ~$750–2,100 per hectare per year

4. Administration and Miscellaneous

ItemDescriptionEstimated Annual Cost (USD/ha)
Permits & complianceCITES reporting, local agriculture permits$100–300
Insurance & contingencyCrop insurance, minor emergencies$100–300
TransportationMoving materials, seedlings, harvested chips$200–500

Total Administrative & Miscellaneous: ~$400–1,100 per hectare per year

5. Total Annual Operating Expenses (OPEX)

CategoryCost Range (USD/ha/year)
Labor4,300–8,000
Maintenance & Inputs950–2,200
Post-Harvest & Processing750–2,100
Administration & Miscellaneous400–1,100
Total OPEX~6,400–13,400 per hectare per year

Notes:

  • Labor is the largest recurring expense.
  • Costs vary based on scale, species, local wages, and type of resin induction method.
  • Post-harvest costs rise if industrial-scale oil extraction is included.
  • OPEX should be combined with expected yield and market price to calculate ROI.