Herefords Australia general manager Andrew Donoghue has resigned and will finish in his role from February 12.
Mr Donoghue was approached by an international company and has since decided to accept the offer.
"Whilst I am excited at the opportunities that my new role will present, I am sad to leave Herefords Australia," he said.
"I have been a passionate Hereford supporter for my entire life and believe the breed has an exciting future.
"I would like to take this opportunity to thank the board, staff and members of Herefords Australia.
"I have thoroughly enjoyed the six years I have spent with the company as breed development manager and general manager."
During his time as general manager, Mr Donoghue has been instrumental in the implementation of an updated constitution and governance platform, the introduction a single step full multi-trait BREEDPLAN analysis, implementation of BREED OBJECT V6 (and a move to production-based indexes) and the establishment of a biennial Breed Forum.
More recently, he and the current board were in the process of developing and implementing a strategic marketing plan for Herefords Australia that will allow an exciting future for the breed.
The board has put in place a recruitment process in seeking Andrew's replacement.