Ma ʻOkakopa 15, ua hōʻike ka pūʻulu ʻekolu o ka hana hana ʻo Toppi i ka makahiki 2021. Wahi a ka hōʻike, ma ka pūʻulu ʻekolu o 201, ua hoʻouna aku ka wahi eli ʻana o Pilbara o Rio Tinto i 83.4 miliona tone o ka hao, he piʻi ʻana o 9% mai ka mahina i hala a me ka piʻi ʻana o 2% i ka pālua. Ua hōʻike ʻo Rio Tinto ma ka hōʻike ma muli o ka hopena o ka hoʻokele freckles, nā papahana hoʻololi mana brownfield a me ka lohi o ka manawa 202, ʻo ka nui o nā hanana hao ma ka lua ʻeli ʻo Pilbara i ke kolu o ka pae he 833 biliona, me ka hāʻule maikaʻi o 4% a me ka piʻi ʻana o 10% i kēlā me kēia mahina.
Eia kekahi, ma muli o Rio Tinto, ma muli o ka hōʻike ʻana o ka naʻau ma Western Australia, ua hoʻopaneʻe iki ʻia ka Papahana Brownfield ʻo Kuddedley Valley a me ka Papahana Hoʻololi Kapakai ʻo Lobo River Green Brownfield. ʻO ka hana hoʻouna hao o ka wahi eli ʻo Pilbara ma Kanada i ka makahiki 2021 he 320 miliona. Tons ~ 320 miliona tons. ʻO ka pahuhopu o nā briquettes hao Kanada a me nā briquettes hao pauka maikaʻi i ka manawa like e hiki i 950 tons a i 1050 tons (e noʻonoʻo i 1050 tons a i 1200 tons).