If you pay for a new vessel, the owner will resell the old one and it'll get reused. What has happened in recent years is that (mainly) Europe and U.S. has empl

If you pay for a new vessel, the owner will resell the old one and it'll get reused. What has happened in recent years is that (mainly) Europe and U.S. has employed stricter regulations. If you enforce this strictly, then it'll become more economical to do a retrofit. Note that lower SOx is quite difficult, retrofits are mainly done to save on bunker costs.