As of December 2025, 50.94% is owned by Indian Promoters and 49.06% by Public.

Top five Promoters holding highest number of shares of Southern Magnesi company are Ravi Prasad Nuthakki (4.40 lakhs shares / 14.66%), Rajender Prasad Nuthakki (3.31 lakhs shares / 11.03%), N Ranga Prasad (3.17 lakhs shares / 10.56%), Nuthakki Ram Prasad (Huf) (1.61 lakhs shares / 5.37%) and Rajender Prasad Nuthakki (Huf) (1.33 lakhs shares / 4.44%).