Spot rates for two benchmark capesize bulker routes fell sharply on Monday amid political upheaval in Guinea, one of the world's largest suppliers of bauxite.
The China-Brazil roundtrip voyage slid 8.5% on Monday to $37,7231 per day, according to Baltic Exchange data.
The China-Japan transpacific roundtrip leg to and from Brazil lost 6.4% to come in at $38,969 per day.
