Cosco Shipping Energy Transportation (CSET) has reported a jump in its greenhouse gas emissions amid fleet expansion despite lower energy intensity.

In its annual corporate social responsibility report, the Shanghai- and Hong Kong-listed company said its emissions increased to 3.37 million tonnes in 2018 from 2.81 million tonnes in 2017.

CO2 emissions increased to 3.22 million tonnes from 2.68 million tonnes in the timespan.

The hikes in emissions came as CSET took delivery of four VLCC, five panamax crude tankers and 10 LNG carriers in 2018.