Former oil trading and tanker tycoon Lim Oon Kuin and his two children have been hit by civil legal actions from the liquidators of failed Singaporean oil company Hin Leong Trading and HSBC Bank.

In a court case that kicked off in Singapore last Thursday, Hin Leong Trading’s liquidators are demanding that its founder Lim, together with his two children, cough up $3.5bn