Hudbay Acquires Rockcliff Metals to Consolidate the Snow Lake Camp

Hudbay Minerals to Acquire Arizona Sonoran Copper Co. in All-Stock Deal

March 2, 2026

Energy

Hudbay Minerals Inc. has signed a deal to acquire Arizona Sonoran Copper Co. Inc. in an all-stock transaction valued at about US$1.48 billion. Hudbay will pay 0.242 of a Hudbay share for each Arizona Sonoran share it does not already own, combining Arizona Sonoran’s Cactus project with Hudbay’s existing Arizona assets.

Talon Metals Acquires Lundin Mining's Eagle Mine and Humboldt Mill

January 9, 2026

Industrial Services

Talon Metals Corp. has completed the previously announced acquisition of Lundin Mining's Eagle Mine and associated Humboldt Mill (held via Lundin Mining US Ltd.), creating a multi-asset U.S. nickel-copper company. As consideration, Lundin Mining received 275,152,232 Talon shares and a limited production-payment royalty on non-Eagle ore processed at the Humboldt Mill; the deal brings the Eagle operating team into Talon and positions the company to extend mine life and accelerate regional exploration.

Royal Gold Completes Acquisitions of Sandstorm Gold and Horizon Copper to Expand Precious-Metals Streaming and Royalties Portfolio

October 20, 2025

Financial Services

Royal Gold, Inc. completed its previously announced acquisitions of Sandstorm Gold Ltd. and Horizon Copper Corp., expanding its diversified portfolio of precious metal stream and royalty interests. The Sandstorm deal was completed via share issuance to Sandstorm shareholders, and the Horizon acquisition was funded in part by drawings on Royal Gold’s revolving credit facility.

TG Natural Resources Acquires Rockcliff Energy II from Quantum for $2.7 Billion

December 15, 2023

Energy

TG Natural Resources LLC (backed by Tokyo Gas America and Castleton Commodities International) agreed to acquire 100% of Rockcliff Energy II LLC from Quantum Energy Partners/Quantum Capital Group for approximately $2.7 billion. Rockcliff is an upstream natural gas producer focused on the East Texas Haynesville shale with field headquarters in Longview, Texas and ~1.3 Bcf/d gross operated production; the deal closed following customary approvals.

Hecla Mining Acquires ATAC Resources (Rackla and Connaught Projects)

April 6, 2023

Industrial Services

Hecla Mining Company (NYSE: HL) has entered into a definitive arrangement agreement with ATAC Resources Ltd. to acquire ATAC and its Rackla and Connaught projects in Yukon, Canada. Under the deal, ATAC shareholders will receive C$31 million in cash/share consideration plus seed capital into a new exploration company, Cascadia Minerals Ltd.

Rio Tinto Acquires Remaining Stake in Turquoise Hill Resources for C$43.00 per Share

November 18, 2022

Industrial Services

Rio Tinto has agreed to terminate certain dissent-related agreements with minority shareholders tied to Pentwater Capital Management LP and SailingStone Capital Partners LLC, while its all-cash plan to acquire the ~49% of Turquoise Hill it does not already own will proceed. Under the proposed plan of arrangement, Turquoise Hill shareholders are offered C$43.00 per share in cash, supported by Rio Tinto’s commitments regarding dissent rights and related payments.