Giant trio's price surge a cash cowOrigin Energy CEO Frank Calabria has asked the government to back an emissions trading scheme. (AAP) Source: AAP1 min readPublished 27 July 2017 1:50pmUpdated 27 July 2017 3:14pmBy Winmas YuSource: News Corp AustraliaAvailable in other languagesSkip to article contentShare this with family and friendsCopy linkShareThis story is written in Chinese.Share