Zhang did not revealed further details of the settlements.
Cosco has sought better terms for lease contracts signed during a shipping market boom in 2008. It decided to halt payments to several shipowners in recent weeks as charter rates plunged.
Last Thursday, Cosco posted bigger-than-expected first-half net loss of RMB2.76bn ($431.7m) compared with a RMB3.41bn net profit a year ago.