Volta Confirmed Gallium Mineralization Across the Full Length of All Three Springer Drill Holes

Volta Confirmed Gallium Mineralization Across the Full Length of All Three Springer Drill Holes, With Total Rare Earth Oxide Grades Up to 6.41%

Highlights：

The extent of gallium mineralization significantly exceeds the currently defined main rare earth mineralized zone, indicating a broader distribution of gallium.

In drill holes SL26-31 and SL26-33, the vertical extent of gallium mineralization extends 210 m beyond the current open-pit boundary; drill hole SL26-32 remained within the mineralized zone at end of hole at a depth of 426 m and remains open at depth, indicating resource growth potential beyond the current pit-constrained resource estimate.

Over the full length of drill hole SL26-31, 399.0 m (3.0-402.0 m), the average gallium oxide grade was 51.8 g/mt.

The highest-grade gallium interval across the three drill holes occurs in drill hole SL26-31 at 67.1-67.6 m, where over 0.5 m the gallium oxide grade reached 236.6 g/mt and the total rare earth oxide (TREO) grade reached 6.41%, together with elevated concentrations of high-value permanent-magnet rare earth elements:

neodymium oxide (Nd₂O₃) 6,730 g/mt, praseodymium oxide (Pr₆O₁₁) 2,598 g/mt, samarium oxide (Sm₂O₃) 414 g/mt, gadolinium oxide (Gd₂O₃) 265 g/mt.

In drill hole SL26-32, over 53.9 m (372.1-426.0 m), the total rare earth oxide (TREO) grade was 1.22% and the gallium oxide grade was 47.0 g/mt; this interval extends to the bottom of the drill hole and remained within the mineralized zone at end of hole.

Gallium is not included in the current Springer mineral resource estimate.