Deep Yellow (ASX:DYL) said a reverse circulation exploration drilling to evaluate the Tumas palaeochannel west of the Tumas ML237 mining license in Namibia was completed in November 2025, confirming the presence of the palaeochannel and identifying favourable sedimentary fill, according to a Friday Australian bourse filing.
The program consisted of 39 drill holes in total for 1,801 meters. Surficial uranium mineralization of over 100 parts-per-million grade of triuranium octoxide-equivalent was intersected only in isolated, narrow, and low-grade zones.
It also completed 10 diamond core holes for 2,754 meters and nine reverse circulation holes for 1,906 meters at the Alligator River project in the Northern Territory by early November 2025.
The firm's shares fell 2% in recent trading on Friday.