SINGAPORE - The chief executive of Singapore-listed TAT Petroleum has resigned over differences with the group chief executive, its parent company has said.

In a statement to the Singapore Exchange, parent SHS Holdings said TAT Petroleum chief executive Ng Keng Sing would leave the company on May 26.

The decision came even though the refined petroleum division posted a record profit in 2014, SHS said in the statement issued late Monday night.

The company said despite this "there remain underlying differences in management approaches between the group CEO, Mr Henry Ng and Mr Ng Keng Sing on the future direction of the refined petroleum businesses".