Artventure has been selected to commemorate Appin's worst mine disaster in artwork.
July 24 marks 40 years since an explosion of methane gas killed 14 miners at the Appin colliery.
South32 Illawarra Metallurgical Coal is developing a public memorial to commemorate the disaster's 40th anniversary.
South 32 selected Artventure to undertake the work.
Artventure is a partnership between sculptor Paul Johnson and designer Gail Mason, who have been installed more than 50 public art projects across Australia.
Mr Johnson said Artventure was proud to work with South 32 and the local community on the project.
"We will create a beautiful piece that will honour those who lost their lives as well as expressing the community spirit of the Wollondilly shire," he said.
There will be a concept unveiling of the memorial piece at the 40th anniversary memorial ceremony at Appin Sportsground on July 24, 2019.
The finished piece will be unveiled in July 2020 at Appin Sportsground.