The AGM in their Nikao office, which was attended by about 20 members including some observers, had three posts under contest.
Hosking, from Titikaveka Bulls, retained his position as well as Papa Tom Wills, who remains the national rugby union governing body treasurer.
William Taripo of Avatiu Rugby Club was elected the new assistant treasurer.
CIRU chief executive officer Ben Koteka hailed the AGM a good start to their 2017 season.
He said they held some healthy discussions regarding the development of the game in the Cook Islands.
“Obviously, we discussed our plans of moving forward and one of big issues that we talked about was the player pathway for the age-grade players,” Koteka said.
“This was based on the success of the Cook Islands Under-15 team at the Condor Sevens in New Zealand.
“We need to have a robust pathway to ensure these kids are able to attend such international events. There is also a need for us to include our Australia and New Zealand families in this process as we have a lot of talents there as well.”
The Cook Islands Schoolboys U15 team was recently recognised for its effort at the National Sports Awards after claiming the Sports Achievement of the Year award.
The Sports Team of the Year went to the Cook Islands Women’s Sevens team which almost created history last year by qualifying for the Rio Olympics.
“We are thankful to these awards and we congratulate all other nominees and winners at the Cook Islands National Sports Awards,” Koteka added.