By Charlie Conchie Box maker DS Smith revealed it was forced to pump £100m into its pension scheme in September as the market was shaken by the fall out of Liz Truss’s disastrous mini-budget. Pension funds deploying so-called liability driven investment strategies were rocked as yields on government bonds soared, amid concerns over the scale of uncosted tax cuts and borrowing announced by Truss and Chancellor Kwasi Kwarteng. DS Smith, which today said revenues had jumped 28 per cent in the first half of the year, said it had been forced to set aside a chunk of cash to support its pension schem…