Guinea Bissau

UBC-14 data is only statistically calculated but due to lack of other data, still the best available guess → 7,000 .
Min/max: +/- 2,000 appears reasonable, as no primary data are available → 5,000 - 9,000
Female participation: no data. Perhaps “African average” of 30% → 2,000.
Gold: All data are for ASGM.

2014: 7,000

(UBC-14): Gold-only data produced by statistic modelling:

Expected ASM population: 7,000 
Estimated ASM gold production: 0.3 t/a
ReferenceYearCitationArchived CopyLink
ARM-182018Barreto, M.L.,Schein, P., Hinton, J., Hruschka, F. (2018): The Impact of Small-Scale Mining Operations on Economies and Livelihoods in Low- to Middle-Income Countries. ARM, Envigado, PACT,…
IGF-182018IGF (2018): Global Trends in Artisanal and Small-Scale Mining (ASM): A review of key numbers and issues. IIED/IISD, London,…
GMA-182018UNEP (2018): Global Mercury Assessment 2018. Technical Background Report E-Annex. Chapter 3.2. UNEP,…
UBC-142014Seccatore, J., Veiga, M., et al. (Univ. of British Columbia - UBC) (2014): An estimation of the artisanal small-scale production of gold in the world. Scitotenv.…



ASM DATA - Country Database Record
Country CodeGNB
CountryGuinea Bissau
ASM StatusExisting (data assessed)
Country Count1
Data year2014
Publ. year2014
ASM Miners7,000
- gold7 ,000
Inc. DevMinno
- min.5,000
- max.9,000
- female2 ,000
ASM Commoditiesgold
  • country/guinea-bissau.txt
  • Last modified: 2023/02/02
  • by Felix Hruschka