#crs32265 - Precious metals/materials
Gold, silver, platinum, diamonds, gemstones
#tags and topics
#cofog0441 - Mining of mineral resources other than mineral fuels (CS)
#cofog0484 - R&D Mining, manufacturing and construction (CS)
#ww88B - Mining and quarrying
#cofog0442 - Manufacturing (CS)
#isic2420 - Manufacture of basic precious and other non-ferrous metals
#isic3211 - Manufacture of jewellery and related articles
#isic0899 - Other mining and quarrying n.e.c.
ISIC 0729 Firm- Mining of other non-ferrous metal ores
227-228. - Mining
With a #tagcoding hashtag per article, anyone can tag content relevant to its status and implementation, and share it via social media as explained in the #tagcoding Handbook or the video #tags in support of easy information retrieval (YouTube).