I kēia lā, i ka manawa o ka makahiki mua o ka Shanghai International Energy Exchange's international copper futures list, nā ʻoihana kūloko a me nā ʻāina ʻē e like me Zijin Mining Group Co., Ltd., Exxon (IXM), Jiangxi Copper Co., Ltd., Singapore Luoheng Ua kau inoa ʻo Industrial Co., Ltd. i ka ʻaelike pili i kēia manawa e pili ana i ke kumu kūʻai kālepa, e ʻae ana e hoʻohana i ke kumu kūʻai kūʻai keleawe o ka honua ma ke ʻano he kumu kumu kūʻai ma ke kālepa ma waena o ke keleawe electrolytic a me ka concentrate keleawe. I ka manawa like, ua hoʻopaʻa ʻia ka helu hope loa o Energy i kahi symposium mākeke ma ka makahiki mua o ka papa inoa o nā ʻoihana keleawe honua. Mai Nowemapa 19, 2020 a hiki i Nowemapa 18, 2021, ʻo ka waiwai kūʻai kūʻai kumulative o ka honua keleawe e hiki mai ana he 1.47 trillion yuan. He 6.958 biliona yuan ka nui o ka hāʻawi ʻana, a ke hoʻololi nei nā kumukūʻai o ka pahu ʻāpana ʻāpana ʻehā, nā ʻōpala poʻo pōʻai a me nā pahu pahu pahu square.