Costamare orders 16 boxships for charter to Cosco
- Deal is biggest between the two companies for two decades
- Chinese giant will charter vessels for up to 15 years, say sources
- Move takes Costamare orderbook to 22 boxships at Dalian and Zhoushan
Greece-based owner inks orders for 9,200 teu and 3,100 teu units worth more than $1.5bn with two Chinese builders
