Alta Copper Announces Closing of Non-Brokered Private Placement

VANCOUVER, Nov. 01, 2023 - Alta Copper Corp. (TSX: ATCU; OTCQX: ATCUF; BVL: ATCU) ("Alta Copper" or the "Company") has closed the previously announced non-brokered private placement (the "Private Placement").

A total of 2,068,290 common shares (the "Common Shares") were issued at a price of Cdn. $0.50, reflecting a premium to market, for gross proceeds of Cdn. $1,034,145. Common Shares will be subject to a mandatory four-month and one day hold period, in accordance with applicable securities law. No warrants were included in the Private Placement.

The Company will use the proceeds of the Private Placement for working capital, ongoing community initiatives in Peru as well as engineering work related to the Optimized Preliminary Economic Assessment targeted for publication by Q1-2024.

The Private Placement remains subject to the final approval of the Toronto Stock Exchange.

About Alta Copper
Alta Copper is focused on the development of its 100% owned Cañariaco advanced staged copper project. Cañariaco comprises 97 square km of highly prospective land located 150 km northeast of the City of Chiclayo, Peru, which include the Cañariaco Norte deposit, Cañariaco Sur deposit and Quebrada Verde prospect, all within a 4 km NE-SW trend in northern Peru's prolific mining district. Cañariaco is one of the largest copper deposits in the Americas not held by a major.

Cautionary Note Regarding Forward Looking Statements

This press release contains forward-looking information within the meaning of Canadian securities laws ("forward-looking statements"). Forward-looking statements are typically identified by words such as: believe, expect, anticipate, intend, estimate, plans, postulate and similar expressions, or are those, which, by their nature, refer to future events. All statements that are not statements of historical fact are forward-looking statements, including, but not limited to, statements with respect to the of the Private Placement, the use of proceeds for the Private Placement, the insider participation in the Private Placement and the business plans of the Company, including the drill program and the completion and anticipating timing of the preliminary economic assessment. These forward-looking statements are made as of the date of this press release. Although the Company believes the forward-looking statements in this press release are reasonable, it can give no assurance that the expectations and assumptions in such statements will prove to be correct. The Company cautions investors that any forward-looking statements by the Company are not guarantees of future results or performance, and are subject to risks, uncertainties, assumptions and other factors which could cause events or outcomes to differ materially from those expressed or implied by such forward-looking statements. Such factors include, among others: the state of the equity financing markets in Canada and other jurisdictions; the receipt of regulatory approvals; fluctuations in metals prices, the actual results of current development activities; conclusions of economic evaluations; changes in project parameters as plans to continue to be refined; accidents, labour disputes and other risks of the mining industry; and delays in obtaining approvals or financing. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. We are under no obligation to update or alter any forward-looking statements except as required under applicable securities laws.

On behalf of the Board of Alta Copper Corp.

"Joanne C. Freeze" P.Geo., President, CEO and Director

For further information please contact:
Joanne C. Freeze, President, CEO and Director
jfreeze@altacopper.com
+1 604 512 3359

or

Giulio T. Bonifacio, Executive Chair and Director
gtbonifacio@altacopper.com
+1 604 318 6760