The company, which operates as Star Reefers, said it was in the process of offloading the 523,178-cbf Honduras Star (built 1992) for $6m.
This deal will entail a profit of $0.4m.
Siem also said it had agreed to acquire the 2006-built specialised reefers Star First (616,157 cbf) and Star Prima (617,184 cbft) from Ocean Grace of Singapore.
They have been chartered to the company since delivery.
It