Giant Mining Submits Core FOR Assay from 1,963 Foot Hole MHB-34 at Majuba Hill Copper Projectadvancing Critical Minerals in Nevada

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Press Release May 30, 2025

GIANT MINING SUBMITS CORE FOR ASSAY FROM 1,963

FOOT HOLE MHB-34 AT MAJUBA HILL COPPER PROJECT-

ADVANCING CRITICAL MINERALS IN NEVADA

VANCOUVER, BC — May 30, 2025 — Giant Mining Corp. (CSE: BFG | OTC:

BFGFF | FWB: YW5) (CSE:BFG.WT.A) (“Giant Mining” or the “Company”) is

pleased to announce that all core from drill hole MHB-34, completed to a total depth of

1,963 feet (598.3 metres)— has been sampled and submitted to ALS Global Services

(“ALS Labs”) for analysis. This hole was part of the Company’s Phase 1 Spring 2025 Drill

Program (the “Core Program”), which comprised five diamond drill holes totaling 5,484.5

feet (1,671.68 metres) at the Majuba Hill Porphyry Copper-Silver-Gold Project (“Majuba

Hill”), located in Pershing County, Nevada .

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Figure 1. MHB-34 Core Being Processed for bagging and shipping to ALS for

assays

The Phase 1 program was designed to expand known zones of copper mineralization and

advance the Majuba Hill project toward completion of a Mineral Resource Estimate (MRE).

Hole MHB-32, the first of the five holes drilled, returned two significant copper-mineralized

zones within a broader interval of 379.5 feet (115.7 metres) grading 0.33% Cu and

16.97 ppm Ag. Notably, the results included 169.5 feet of 0.41% Cu, with higher-

grade intervals of 40 feet at 1.36% Cu and 10 feet at 4.36% Cu, indicating that

mineralization extends deeper and farther north than previously known. See Press

release May 22, 2025, here.

David Greenway, CEO of Giant Mining, commented: "In my entire career, I’ve never

seen drill core like this, it’s truly extraordinary. When we began drilling MHB-34, we had

high expectations, but what we encountered exceeded them all. In my entire career, I’ve

never seen drill core like this. The presence of visible native copper beyond 1,850 feet,

alongside cuprite and chalcopyrite, is a powerful indicator of the scale and strength of the

mineralized system at Majuba Hill. This hole reinforces our belief that Majuba Hill is evolving

into a world-class copper, silver, and gold discovery. Located in a top-tier mining

jurisdiction with excellent infrastructure, this project is uniquely positioned to contribute to

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America's clean energy transition and critical minerals independence. We eagerly await the

assay results from ALS Labs and look forward to advancing our 2025 exploration program."

Figure 2: MHB-32 NQ Core closeup. Clasts of intrusive with chalcopyrite in

tourmaline/chalcopyrite matrix breccia at 810 ft (246.89 m).

About Hole MHB-34

• Visible native copper observed beyond 1,850 feet signals scale and strength at

Majuba Hill.

• Strong presence of native copper, cuprite, and chalcopyrite suggests proximity to a

primary copper sulfide zone.

• Majuba Hill positioned as a homegrown U.S. critical minerals project with Tier 1

infrastructure advantages.

As shown in the accompanying images (Figure 2-5), native copper, cuprite, and

chalcopyrite was persistent in the deeper part of MHB-34.

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Figure 3: MHB-34/1499 ft (456.9 m) Native Cu on fracture HQ Core, 2.5-inch

(63.5 mm) diam.

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Figure 4: MHB-34/1510 ft (460.2 m) Native Cu in HQ Core with chalcopyrite,

2.5-inch (63.5 mm) diam.

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Figure 5: MHB-34 1527 ft (465.4 m) Chalcopyrite and Tourmaline Breccia

Matrix, HQ Core 2.5-inch (63.5 mm) diam.

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Figure 6: MHB-34/1542 ft 470 m) Chalcopyrite with Cuprite and Native

Copper, HQ Core 2.5-inch (63.5 mm) diam.

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Figure 7: Majuba Hill 2025 Drill Hole Locations

Majuba Hill’s critically important characteristics are as follows:

Location:

Nevada, USA — a globally top-ranked mining jurisdiction,

ranked #1 in the Fraser Institute’s 2022 Annual Survey of

Mining Companies.

Project Size: 9,684 Acres

Infrastructure:

The Majuba Hill property is 113 road km (70 miles)

southwest of Winnemucca, Nevada, and 251 km (156 miles)

northeast of Reno. Access is by well-maintained county

roads from the Imlay, Nevada exit on U.S. Interstate 80,

and traveling westward 23 miles. People, Roads, Power and

Water are the basic elements when considering

infrastructure and Majuba Hill already has a solid

infrastructure foundation for building a large facility which

will provide significant savings compared to more remote

projects