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NOBL.V ·

Indigo Exploration Inc. Announces Name Change to Noble Plains Uranium Corp.

Corporate Actions

Indigo Exploration Inc. Announces Name Change to Noble Plains Uranium Corp.

Vancouver, BC, May 21, 2025 – Indigo Exploration Inc. (the “Company”) (TSX V: IXI), (OTCQB: IXIXF),

(FSE: INE) announces that it will be changing its name from “Indigo Exploration Inc.” to “Noble Plains

Uranium Corp.”, a step that reflects the Company’s strategic focus on uranium exploration and development

in the United States. This transition marks a significant step forward in aligning the Company’s identity with

its renewed focus on advancing a growing portfolio of uranium assets aimed at fueling the nuclear renaissance

from America’s uranium heartland through the responsible development of critical mineral resources.

Paul Cowley, CEO stated, “This name change represents more than a rebrand — it signals the start of a new

chapter for our company. As Noble Plains Uranium, we are positioning ourselves to play a vital role in the

resurgence of domestic uranium production, with a clear vis ion to advance strategic, high -impact projects in

the U.S.”

The effective date for the name and symbol change is May 23, 2025 (the “ Effective Date”). It is anticipated

that the TSX Venture Exchange (the “ TSXV”) will issue a bulletin on May 21, 2025, confirming that the

Company’s common shares will commence trading under the new name, Noble Plains Uranium Corp., and

new trading symbol, NOBL, on the Effective Date. The new CUSIP number of the Company’s common shares

will be 65510H108 and the new ISIN will be CA65510H1082.

The name change does not involve a consolidation of the Company’s share capital, and as such, shareholders

will not be required to exchange their existing share certificates for new ones. The name change will not affect

the Company’s share structure, or the rights of the Company’s shareholders and no action will be required to

be taken by shareholders with respect to the name change. All currently outstanding share and warrant

certificates will continue to be valid under the new name.

The name change was approved by the Company’s Board of Directors in accordance with the Company’s

Articles and the Business Corporations Act (British Columbia).

On the Effective Date the Company’s website will be: nobleplains.com

On Behalf of the Board of Directors,

Paul Cowley CEO and Director (604) 340-7711 Website: indigoexploration.com

This news release includes certain forward -looking statements as well as management's objectives, strategies, beliefs and

intentions. Forward looking statements are frequently identified by such words as "may", "will", "plan", "expect", "anticipate",

"estimate", "intend" and similar words referring to future events and results. Forward-looking statements in this news release

relate to, among other things, but are not limited to, statements regarding the effective date of the name change, the

commencement of trading under the new name and symbol, and the CUSIP and ISIN updates. Forward-looking statements are

based on the current opinions and expectations of management. All forward -looking information relating to the mineral

exploration business is inherently uncertain and subject to a variety of assumptions, risks and uncertainties, including the

speculative nature of mineral exploration and development, fluctuating commodity prices, competitive risks and the availability

of financing, as described in more det ail in our recent securities filings available www.sedarplus.ca. Actual events or results

may differ materially from those projected in the forward -looking statements and we caution against placing undue reliance

thereon. We assume no obligation to revise or update these forward-looking statements except as required by applicable law.

Neither the TSX Venture Exchange nor its Regulations Services Provider (as that term is defined in the policies of the TSX

Venture Exchange) accept responsibility for the adequacy or accuracy of this release.