Revenue from its royalty over BHP's Mining Area C was A$53.9 million.

Underlying EBITDA was $47.8 million at an underlying EBITDA margin of 97%.

The company posted a half-year net profit after tax of $33.3 million, which included transaction costs for its October demerger from Iluka Resources.

Deterra declared a fully franked interim dividend of 2.45c per share, equal to 100% of NPAT post-demerger.

"It is pleasing to have completed the demerger process and to have successfully established the Deterra business," Deterra managing director Julian Andrews said.

"This result showcases the quality of the royalty assets in our portfolio, and in particular the Mining Area C royalty, and the ability to distribute 100% of net profits of $12.9 million as dividends so shortly after our demerger."

Deterra's revenue is set to grow when BHP brings the South Flank iron ore project into production by the middle of this year.

"Our shareholders will receive direct benefit from the significant growth in production without exposure to capital costs for the project," Andrews said.

"This inherent growth in the portfolio also allows us to be patient in pursuing other opportunities to grow the business. We have a focused and capable team in place to seek out opportunities to add to and diversify our royalty portfolio in a disciplined way."

Deterra shares closed at $4.64 yesterday, valuing the company at $2.45 billion.