Aside from being home to the busiest container ports worldwide, China is also the global leader in shipbuilding, exporting mainly bulk carriers, oil carriers, and container ships. Over the past years, the demand for container ships of increasingly larger size has been going up. It is expected that the higher capacity of container ships will lead to a smaller number of ships in the worldwide fleet. By December 2020, the projected worldwide number of container ships is estimated to be around 5,000.
As the size of container ships increases, so does the size of their engines. Machinery failures, including engine failures, account for over ten percent of the marine insurance claims in terms of value. However, they only account for three percent of the number of claims, fewer than those caused by crime such as piracy attacks. The number of actual and attempted piracy attacks decreased in 2019 compared to the previous year, with Nigeria and Indonesia being the main hotspots.