Grid Metals Reports Final Assays from its 2025 Drill Program at Falcon West Including 20.45% Cs20 over 3.3m; Announces Participation at PDAC

Published

TORONTO, ON / ACCESS Newswire / February 26, 2026 / Grid Metals Corp. (TSXV:GRDM)(OTCQB:MSMGF) ("Grid" or the "Company") is pleased to report the final drill results from its Phase 1 cesium-focused drill program at the 100% owned Falcon West cesium property (the "Property"). Drilling at the Lucy South cesium target has outlined a highly fractionated lithium/cesium/tantalum enriched ("LCT") pegmatite with the cesium largely contained in pollucite and lithium largely contained in coarse grained spodumene.

In addition, Grid would like to cordially invite its shareholders and other stakeholders to visit us at Booth #2122 in the Investors Exchange Exhibition Room at the Prospectors and Developers Association of Canada (PDAC) Convention. PDAC, regarded as one of the world's premier resources conferences, will run from Sunday, March 1, 2026 until Wednesday, March 4, 2026 at the Metro Toronto Convention Centre in Toronto, Ontario. Robin Dunbar, President & CEO, will be presenting during the Electric Materials Session on Tuesday, March 3 at 12:17 pm ET in Room 801B.

Drilling Highlights

  • The best cesium intercept drilled at the Property to date was returned in hole LU25-51 of 3.35 m grading 20.45% Cs2O including 2.35 m with 28.4% Cs2O. Other highlights from the current batch of reported holes are shown in Table 1.

  • Cesium is concentrated in pollucite-bearing subzones within a Cs- + Li-enriched core zone of the Lucy South LCT pegmatite. The core zone has been extensively drilled across an area of ~120m x 40-50m in which the average vertical depth to the top of the zone ranges from 15-25 metres.

  • The Lucy South core zone remains open in multiple directions. There are indications that the overall extent of the host LCT pegmatite could be larger than the immediate detailed drilling area based on magnetic survey data, historical drill hole information and bedrock and vegetation geochemical survey results.

  • The pollucite mineralization shows variable lateral connectivity but is most continuous in a flat-lying part of the up-dip, near-surface portion of the Lucy South pegmatite.

  • The Company is currently attempting to expand the known cesium mineralization in the immediate target area with a Phase 2 drill program that commenced in late January 2026. It expects to commence work on an initial cesium resource estimate for Lucy South immediately following receipt of all assays from the Phase 2 program.

A total of 28 holes are reported in this release such that all 67 holes (3,035 metres) have now been reported from the Phase 1 cesium-focused drill program at Lucy South. Significant results include both cesium-rich and lithium-rich intersections hosted by the highly fractionated core zone of the host Lucy South pegmatite. All of the reported drillholes in the program have intercepted Lucy South at no greater than 50m vertical depth. The majority of cesium intercepts have occurred at a down hole depth of less than 30 meters.

In late January, the Company commenced a Phase 2 program at Lucy South that will include approximately an additional 60 drill holes focused on remaining gaps around the currently defined Cs-rich portion of the pegmatite.

Figure 1: Map of Lucy South target area with interpreted pierce points into the top of the flat-lying Lucy South LCT pegmatite projected to surface for holes LU25-40 to LU25-67 and previous holes completed in this area. Background image is based on a recent government LIDAR survey.

Table 1: Selected Length-Weighted Cesium Interval Assays from Drill Holes LU25-40 to LU25-67, Lucy South Phase 1 Drilling Program. See Appendix 1 for complete results and Appendix 2 for hole locations. Note the true thickness for each interval reported is estimated to represent between 80% and 100% of the reported interval lengths.

Hole ID

From (m)

To (m)

Length (m)

Cs2O (%)

Li2O (%)

Rb2O (%)

Ta2O5 (ppm)

LU25-43

23.35

24.25

0.90

3.26

1.51

0.23

290

LU25-50

18.90

24.20

5.30

2.78

0.83

0.53

230

inc.

19.50

22.00

2.50

5.73

1.12

0.53

287

LU25-51

22.00

31.10

9.10

7.71

1.15

0.40

74.7

inc.

24.05

27.40

3.35

20.45

0.38

0.72

-

with

24.05

26.40

2.35

28.39

0.49

0.95

-

LU25-52

23.20

25.20

2.00

4.14

0.85

1.43

133

inc.

24.50

25.20

0.70

9.58

1.81

0.36

203

LU25-59

23.60

30.35

6.75

2.00

2.57

0.23

361

inc.

27.00

29.00

2.00

6.36

2.71

0.18

956

with

28.55

29.00

0.45

16.46

0.41

0.49

35.6

LU25-66

22.80

24.00

1.20

2.94

1.07

0.75

20.0

LU25-67

26.70

31.10

4.40

1.68

0.96

0.14

61.1

Inc.

29.35

31.10

1.75

2.76

0.72

0.23

12.7

Cesium Results

Drill hole logging, quantitative mineralogical analyses and whole-rock geochemical data confirm that pollucite is the dominant cesium-bearing mineral in the Cs-rich portion of the Lucy South LCT pegmatite. Pollucite is present in abundances ranging from 80% over true thicknesses of

The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.

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