Ann: March 2021 quarterly presentation, page-3

I think they own 100% of Siana.

From Mining magazine last year:

The Red 5 group also owns the Siana Gold Project located on the island of Mindanao in the Philippines. The Siana Project is held under a Mineral Production Sharing Agreement (MPSA) by Greenstone Resources Corporation (a Red 5 Philippine affiliate company).

The Siana Project is currently on Care and Maintenance pending an improvement in operating conditions in the Philippines. The deposit is currently mined by open pit methods, transitioning to underground mining following completion of the open pit.

The Group’s second principal asset is the Mapawa MPSA, located 20km north of Siana, which has the potential to be developed as a satellite source of ore feed for the Siana processing plant. Mapawa hosts a known gold porphyry system with numerous high grade gold occurrences throughout the project area. The area has had little exploration activity and is considered to have significant potential.