At least one ship carrying Australian coal that was destined for China has been diverted due to uncertainty around Chinese customs policies following the easing of a ban on imports from Australia, according to traders and shiptracking data. The BBC Maryland, hauling about 12,000 tonnes of thermal coal from Australia's Newcastle terminal, was headed to Vung Tau in Vietnam on Thursday after waiting five days without unloading at the eastern Chinese port of Changshu, Refinitiv and Kpler data showed.