Iran has expanded its Strait of Hormuz blacklist to 57 non-compliant vessels, warning of fines, detention or confiscation for violators, according to the Persian Gulf Strait Authority's website as of Wednesday.
PGSA initially listed 45 vessels on Aug. 24, warning that ships breaching its transit rules could face fines or detention, according to a post on X.
The list has expanded by 12 ships, bringing the total to 57 restricted vessels as Iran tightens controls on transit through the Strait of Hormuz, according to the government website.
"Any vessel cooperating with listed vessels... will be added to the list," according to the website.
The tighter restrictions could further hamper oil exports through Hormuz, which handled about 20% of global oil and liquefied natural gas shipments before the war.
The list covers very large crude carriers, liquefied natural gas tankers, liquefied petroleum gas tankers and clean product vessels, among other ship types, according to a Reuters report on Wednesday.
The list includes ships linked to UAE's Adnoc Logistics and Shipping, Adnoc subsidiary Navig8 Tankers and Saudi Arabia's Bahri, along with vessels owned by Klaveness Ship Management, Stolt Tankers and South Korea's Sinokor, according to the Reuters report.
"To request removal, vessels must submit a formal application with justifications," according to the website.
Iran's Ministry of Foreign Affairs did not immediately reply to' request for comment.