The container ship charterer Global Ship Lease (GSL) announced that it had signed an agreement with a leading company of containerized navigation to buy and re-entrust in charter back four post-Panamax container ships of the capacity of 8,500 teu and the average age of 20 years. The agreement has a value of $123.3 million. GSL specified that the period of Agreed rental has a minimum duration of 24 months for each ship, with options for an additional 12 months.