The document discusses how new regulations by the International Maritime Organization will require lower sulfur emissions from ships beginning in 2020. Specifically, the maximum allowed sulfur content in bunker fuel will decrease from 3.5% to 0.5%. This will likely increase fuel costs for shipping companies. There is uncertainty around how companies will comply with the new rules and whether the additional costs of lower-sulfur fuel will be passed on to customers through higher freight rates. The shipping industry has significant buying power in the oil market and could potentially negotiate lower premiums for ultra-low sulfur fuel.