Kupukka Graphite Project

Kupukka Graphite Project

The Kupukka graphite deposit is located in Siikalatva, North Ostrobothnia, on the east side of Highway 4 (Figure 1). Good transportation connections and a relatively short distance to the coast, where a large battery industry is planned, provide a good basis for a possible graphite mine.

The exploration results so far at the Kupukka graphite site are promising. In the 2013 historical drillings in the southern end of the exploration permit area, the following intercepts were obtained in hole RAN-2:

74.65 m (22.00-96.65) @ 3.73% Cg, including:

24.00m (40.00-64.00) @ 5.31% Cg and 14.65m (82.00-96.65) @ 6.16% Cg. (Cg = graphitic carbon)

The graphite concentrations found in the drillings in the nearby area (GTK, 1993) are also significant, 12.9 m @ 6.9% Cg. In local boulders, the concentration is at its highest 18.25%. The flake size of the graphite is ≤ 1.5 mm and its quality has been proven good by Raman spectrometry.

In 2024 seven diamond drill holes were made with a total length of 1670 m.

Highlights include:

KUP-002: 112.40m @ 4.5 % Cg (82.60 – 195.00m), including 17.70m @ 5.2 % Cg (82.60 – 100.30m) and 22.55m @ 9.2 % Cg (118.20 – 140.75m)

KUP-003: 86.30m @ 3.6 % Cg (24.00 – 110.30m), including 20.45m @ 8.0 % Cg (26.00 – 46.45m)

The true width of the intercepts is estimated to around 70 % of the intercept length.

See all the latest exploration activities at news page.

Location of the Kupukka Graphite Project. Base map © MML 2023.
Kupukka drill hole collars on the GTK airborne, EM in-phase anomaly map (red = maximum). Location of drill holes made in 2013 with green dots. Exploration permit area marked blue. Base map © MML 2025.
Assay results from the 2024 drill holes. Cut off for the intercepts is 3.0 % Cg. The true width is estimated to be around 70 % of the intercept length.

Graphite content (Cg) in drill holes KUP-002 and KUP-003. Cross section towards north.

Collar data and location of the RAN-1-4 Drill Holes on topographic map.
Graphite intercepts in Drill Hole RAN-2. Cross section towards north. True thickness is estimated to be 60-90% of the reported core length.
Graphite-rich drill core from DH RAN-002. Assayed graphite content (Cg) marked on the drill core.
Graphite content in Drill Holes Ran-1-4. Both the RAN-3 and RAN-4 holes end to graphite gneiss, suggesting further potential below. Bird’s eye view towards WN.