A mine explosion in Hunan renewed concerns about Chinese coking coal supply.
The accident could trigger additional safety inspections and temporary mine closures.
Hard coking coal CFR Jingtang increased by $6.08 to $222.75 per tonne.
Premium hard coking coal CFR Jingtang reached $245.67 per tonne.
Steelmakers increased purchases of direct-charge iron ore to reduce coke-related risks.
