Branches around the country have had their hand in commemorating merchant navy sailors killed at sea this week.
Significant delegations of members past and present attended respective Merchant Navy Day ceremonies in Queensland, South Australia, Western Australia and Northern Territory on Wednesday.
National Secretary Paddy Crumlin said it was important to remember the history of the union.
“On days like Merchant Navy Day we appreciate the sacrifices our forebears have made to ensure the union and more generally the maritime industry is in the position it is today and around the world,” Crumlin said.
In South Australia more than 70 people turned out to the Port Adelaide event that involved a marching band wreath laying ceremony.
Branch Secretary Jamie Newlyn said people often forget the huge numbers of merchant seafarer fatalities during times of war.
"The people who are responsible for keeping the world's economy going are not often given more than a passing thought," Newlyn said.
"This day serves as a reminder of how important a job seafaring is and has been, especially in war times.
"South Australia's economy was enhanced by the small merchant fleet servicing the coast of SA and the Federal Government needs to remember this and to promote and support the current shipping legislation.
“Not be advocating its demise on ideological grounds".
Other speakers included State MP for Port Adelaide Susan Close and Port Adelaide Enfield Mayor Gary Johanson.