PetroChina International on Thursday will use liquefied natural gas to bunker a vessel in Singapore for the first time, Chairman Wu Junli said, widening the alternative-fuel options it can offer shipowners at the world's top refuelling port.The trading arm of Chinese state major PetroChina 601857.SS<p><p>https://www.marinelink.com/news/petrochina-launches-lng-bunkering-ops-543695</p></p>