How old can a Category A senior supervisor work?

50 years old. According to the relevant information about the work ability of Category A chief engineer officers, it is known that Category A chief engineer officers can work for 50 years old. However, currently, the majority of Category A chief engineer officers are under the age of 40, and management-level seafarers are aged 41 and above. The above age groups account for the majority, and the most dense age distribution of each position moves upward as the position increases.