China's Ministry of Transport on Tuesday revealed a detailed document regarding measures to charge special port fees on ships owned or operated by U.S. enterprises, organizations and individuals.

The document, composed of 10 articles, clarifies specific provisions on the charging scope and standards, entities to collect the fees, payable voyages, the date of implementation and other relevant aspects.

Exemptions from these special port fees will be granted to ships built by China, empty ships entering Chinese shipyards purely for repair purposes, and other ships that are deemed exempted from payment, according to the document.

This document also notes that the scope and standards of fees, and the charging period, will be dynamically adjusted in line with the situation at the time of implementation.