Mariah Storch, who made her State of Origin debut for Queensland this year, has been signed alongside experienced Kiwi winger Karley Te Kawa.

Young Queenslander dual code star Taylor Mapusua will bring depth and experience from both her rugby league and rugby union backgrounds.

She won gold with the Australian Rugby Sevens team at the Youth Commonwealth Games in 2017.

The 20-year-old returned to rugby 7s and league after spending more than a year out with a lis franc injury.

"We've assembled a great collection of talent in our playing squad, both in terms of their ability on the field, and their values and commitment to the team off the field," Brisbane Broncos NRLW CEO Tain Drinkwater said.

The latest signings mean the Broncos now have 20 of their 22-player squad locked down, with the final spots to be determined next week.

The New Zealand Warriors are expected to name their full squad on deadline day which is July 31 while the Sydney Rooster still have seven spots remaining and the St George Dragons have signed 10 players.