Mr. Todd Anthony reports

ROBERTO RESOURCES COMPLETES ACQUISITION OF CLAUDIA SILVER & GOLD PROJECT; CHANGES NAME TO PACIFICA SILVER CORP.

Roberto Resources Inc. has completed the acquisition of the Claudia silver and gold project, located in the historic El Papanton mining district in Durango state, Mexico, pursuant to the binding letter agreement previously announced on June 30, 2025. In conjunction with closing of the acquisition, the company has changed its name to Pacifica Silver Corp. to better reflect its overall business strategy to acquire and advance highly prospective precious metals projects in the Americas.

"The closing of this acquisition marks the first time Claudia has been held as a stand-alone project within a public vehicle and the beginning of a transformative journey for our shareholders," stated Todd Anthony, president and chief executive officer. "Located in the prolific Sierra Madre occidental in Mexico near numerous active and historical mines, the project boasts multiple outcropping vein structures across approximately 30 kilometres where previous drilling in 2007 and 2021 has confirmed high-grade silver and gold mineralization. With 146 permitted drill sites, low-cost drilling, year-round access and a renewed surface access agreement with the local community in place, we are excited to embark on comprehensive exploration programs to begin unlocking the project's full potential."

Claudia project overview

The Claudia project encompasses a land package of 11,876 hectares hosting high-grade silver and gold mineralization in quartz-adularia veins and breccias emplaced along multiple northwest-striking structures forming an 11-kilometre-long horsetail structural complex. The project includes several previously identified mineralized zones, such as the Santiaguera, Mina de Oro, Mina Vieja, El Grullo, Noche Buena, Tres Reyes, Aguilarena, Guadalupana, La Concepcion, Don Cose, El Cristo and Lizeth vein swarms. One of these structures, the Aguilarena vein, was previously explored by a former operator that developed a 90-metre-deep shaft and three levels of vein excavation at approximately 40, 60 and 90 metres below surface. The second and most extensive level extends roughly 770 metres in length.

Drilling completed in 2007 and 2021 confirmed the presence of gold-silver mineralization adjacent to the previous workings and tested approximately two kilometres of strike length along the Aguilarena vein and part of the nearby Guadalupana vein to the east.

In 2021, a private operator conducted a confirmation drilling campaign, totalling 7,900 metres across 34 drill holes, focused on portions of the Aguilarena and Guadalupana veins. Four holes intersected material grading over 10 grams per tonne (gpt) gold equivalent (AuEq), using an 80:1 silver-to-gold ratio. Six holes encountered mineralization of over five gpt AuEq and 13 holes intersected mineralization over two gpt AuEq. Notably, 24 holes (representing 70 per cent of the total number of holes drilled) intersected mineralization over one gpt AuEq. Additional results from the 2021 drill campaign can be found in the company's news release of June 30, 2025.

Drilling to date has tested less than 10 per cent of the total mapped strike length of the large vein array on the project. Surface mapping and trenching by previous operators, coupled with multiple small-scale historical mine workings, suggest strong potential for additional high-grade gold-silver discoveries along both the Aguilarena and Guadalupana veins, and across at least 10 other untested structures in the vein array.

The project is drill ready, with environmental permits (informe preventivo) granted on Aug. 30, 2021, by the Secretaria de Medio Ambiente y Recursos Naturales, authorizing 146 drill sites with minimal surface impact, ideal for track-mounted or man-portable diamond core drills. These permits remain valid for five years from the issuance date.

Pacifica plans to undertake an 8,000-metre, 25-hole initial drill program in the second half of 2025 to begin testing various targets.

Acquisition of the Claudia project

Under the terms of the letter agreement, the company entered into a share purchase agreement (SPA) on July 17, 2025, with Durango Gold Corp., an arm's-length private company, Cielo Azul Resources S.A. de C.V. (Azul), a subsidiary of Durango, and Fernando Berdegue de Cima, whereby the company purchased all of the issued and outstanding shares of Azul from Durango. Azul holds the surface concessions of the Claudia project.

Under the terms of the SPA, the company has acquired all of the issued and outstanding shares of Azul. In consideration for Azul, the company: (a) paid Durango $10,000 (U.S.) cash, being the closing payment of $25,000 (U.S.) less the $15,000 (U.S.) previously advanced to Durango (see news from June 30, 2025); (b) issued to Durango 10 million common shares, subject to a restriction on resale for a period of 12 months; (c) assumed $651,453 (U.S.) in current accounts payables associated with holding the project, including payroll costs of $25,940 (U.S.), third party costs of $156,236 (U.S.) and mineral concession payments of $469,277 (U.S.); and (d) assumed the obligation to make bonus payments to Silverstone Resources S.A. de C.V., the previous vendor of the Claudia project to Durango, contingent on the future disclosure of National Instrument 43-101-compliant measured and indicated resources at the project. The payment structure is as follows: (i) for one to 500,000 ounces of gold or gold equivalent defined, a payment of $7.0-million (U.S.); (ii) for 500,001 to one million ounces of gold or gold equivalent, an additional payment of $10.0-million (U.S.); (iii) for 1,000,001 to 1.5 million ounces of gold or gold equivalent, a further payment of $2.0-million (U.S.). The agreement allows for the gold discovery payments to be paid 50 per cent in company shares and 50 per cent in cash. If the company is unable to publish a technical report disclosing measured or indicated resources by Dec. 31, 2029, the project must be returned to Silverstone.

The company believes that Durango intends to distribute the consideration shares in a proportional manner to its shareholders subject to applicable securities laws. If the consideration shares are distributed to Durango shareholders prior to the end of the restriction period, the consideration shares held by Durango shareholders will continue to be subject to the restriction period.

The company will also be required to assume the obligation to carry out a minimum of 50,000 metres of drilling at the project until Dec. 31, 2029. Silverstone will also be permitted to explore and mine up to 130,000 tons of material located in the shaft known as Aguilarena at the project.

Name change to Pacifica Silver Corp.

In conjunction with the acquisition, the company has changed its name from Roberto Resources to Pacifica Silver. Accordingly, it is anticipated that the company's common shares will commence trading under the new name and new stock ticker symbol PSIL at the start of trading on July 21, 2025, on the Canadian Securities Exchange.

The name change is being proposed to better reflect the company's projects and focus on a specific critical metal, silver. Management believes that the name change is in the best interest of shareholders and in line with the company's overall business strategy to pursue and advance precious metals projects in stable jurisdictions.

In connection with the name change, the new ISIN CA 695104 10 9 5 has been assigned to the common shares of the company. No action is required to be taken by shareholders with respect to the name change. Outstanding common share and warrant certificates bearing the old name of the company are still valid and are not affected by the name and ticker symbol change.

Patrick Loury, AIPG, CPG, vice-president of exploration for Durango, is a qualified person for the purposes of National Instrument 43-101, and has reviewed and approved the technical content in this news release.

About Pacifica Silver Corp.

Pacifica Silver is a Canadian resource company led by a proven management team with decades of mining and exploration experience in Mexico. The company is focused on its 100-per-cent-owned Claudia project, located in Durango, Mexico. Spanning 11,876 hectares, the project encompasses most of the historic El Papanton mining district, where at least nine small mines operated throughout the 20th century. Since 1990, sampling and drilling within have returned high-grade silver and gold intercepts across multiple vein systems, with only 10 per cent of over 30 kilometres of known veins having been drilled. Today, the project is a prime target for modern exploration and holds exceptional potential for new high-grade discoveries.

The company also holds an option to acquire a 100-per-cent interest in the Janampalla property, located in the Huancavalica province of central Peru. Pacifica is focused on continuing exploration work that has indicated widespread, high-grade copper-gold mineralization hosted within Manto-style veins and disseminations.

We seek Safe Harbor.