The mining giant is exploring the use of bunker fuels such as liquefied natural gas and biofuels to replace fuel oil, aiming to reduce carbon emissions by 40% when shipping its products.
The restrictions on imports from Australia came into effect in the second half of last year, resulting in China's imports dropping to virtually zero in the first two months of this year.
Despite gold's price slump, strong copper and iron ore prices lifted MINING.COM's ranking of the world's 50 most valuable miners to a new record high of $1.35 trillion.