Jake Flannery, Angus Curtis and Luke Marshall will continue to line-out for Ulsters in the seasons ahead.
Tipperary native Jake Flannery has agreed a new three-year deal that will keep him at Kingspan Stadium until at least 2026.
25-year-old Curtis has put pen to paper on a new two-year deal with the province.
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And Marshall, who has amassed over 150 appearances for his home province, is to remain in Belfast for another year.