Customers with one of Hong Kong’s top energy firms have been forced to bear the brunt of steeper supply costs after the conflict in the Middle East cut off gas from Qatar earlier this year, the company’s CEO has said.HK Electric’s Francis Cheng Cho-ying said on Sunday that the firm had not received any gas from Qatar since March, after Iranian strikes damaged production facilities that accounted for a significant portion of the contracted gas supply for the Lamma Island power plant.The company...