The former and current transport ministers had allegedly abused their powers by sending letters of support committing the government as a guarantor for any financial liabilities of the Port Klang Authority (PKA) for the Port Klang Free Zone (PKFZ) project.

At a press conference in Petaling Jaya, PKR de facto leader Anwar Ibrahim revealed that former minister Dr Ling Liong Sik and his successor Chan Kong Choy wrote four letters expressing the government's undertaking to subsidiary companies of the PKFZ's turnkey contractor, Kuala Dimensi Sdn Bhd (Kuala Dimensi).