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Sumitomo Corp. joins Chilean copper-gold mine project

Created at 28 Aug · 8:11 PM1 source↑ Market-relevant
IN SHORT

Sumitomo Corp. has joined the Dos Amigos copper-gold project in Chile's Atacama Region through a special purpose vehicle funded with the G Mining Group. The project is expected to begin production in the early 2030s and yield approximately 37,000 metric tons of copper annually.

Key Numbers

37,000 mtannual copper production
57,000 ouncesannual gold production
101 million mtmeasured & indicated mineral resources
256 million mtinferred mineral resources
25 yearsexpected mine life
C$48 millionSPV subscription amount
C$91 millionTintina's private placement
25%SPV equity interest in Tintina
12.5%Sumitomo's effective economic interest
800 metersproject elevation
35,000 mtdaily ore throughput

Who's Involved

Sumitomo Corp.
Japanese trading house investing in Chilean copper-gold project
G Mining Group
Partner in the Dos Amigos copper-gold project
Tintina Mines Limited
Canadian mine development company with a stake in the project
Shingo Ueno
Representative Director, President and Chief Executive Officer of Sumitomo Corporation
Sumitomo Corp. joins Chilean copper-gold mine project

↳ Why This Matters

Sumitomo's investment underscores the increasing global demand for copper, a critical component for data centers and AI infrastructure, and highlights Japan's strategy to secure vital natural resources amid a global rush for materials essential to the energy transition and technological advancement.

Key facts

  • Sumitomo Corp. has partnered with G Mining Group to invest in the Dos Amigos copper-gold project in Chile.
  • The investment is made through a special purpose vehicle that will hold a 25% equity stake in Tintina Mines Limited.
  • The project is located in the Atacama Region and has estimated mineral resources of over 100 million metric tons.
  • Annual production is projected to be around 37,000 metric tons of copper and 57,000 ounces of gold.
  • Production is anticipated to commence in the early 2030s.

Sumitomo Corp. has joined the Dos Amigos copper-gold project in Chile's Atacama Region, a move that signals the Japanese trading house's strategic focus on copper resources. The investment is being made through a special purpose vehicle (SPV) established on a 50:50 basis with the G Mining Group. This SPV subscribed for approximately C$48 million in a private placement by Tintina Mines Limited, a Canadian mine development company. Following this financing, the SPV will hold approximately a 25% equity stake in Tintina, translating to an effective economic interest of about 12.5% for Sumitomo in the Dos Amigos project.

The funds raised will be used to acquire additional ownership interests in the project, ultimately leading to Tintina obtaining 100% ownership, and to advance the project towards a final investment decision. This includes funding drilling, feasibility studies, environmental assessments, and permitting work.

The Dos Amigos project is centered on a copper-gold deposit with preliminary economic assessments identifying substantial mineral resources. Measured and indicated resources stand at approximately 101 million metric tons, with inferred resources at approximately 256 million metric tons. The project is expected to have a mine life of about 25 years, utilizing open-pit mining and flotation processing with an anticipated ore throughput of 35,000 metric tons per day. Annual production is projected to average 37,000 metric tons of copper and 57,000 ounces of gold.

Sumitomo Corporation views copper as a key strategic focus due to its expected continued demand growth, particularly with the rise of data centers and AI infrastructure. The company is actively strengthening its mineral resources business by originating and enhancing promising projects. The Dos Amigos project was identified and structured through G Mining Capital Inc., an upstream copper business development platform jointly operated by Sumitomo Corporation and the Gignac family, leveraging Sumitomo's business management expertise and the G Mining Group's development and construction capabilities.

The project benefits from its location in the Atacama Region, with existing transportation and power infrastructure, and a relatively low elevation. Promising exploration potential in adjacent areas suggests further growth opportunities. Production is expected to commence in the early 2030s, contributing to the stable supply of copper resources.

Frequently asked questions

The Dos Amigos project is a copper-gold deposit development in the Atacama Region of Chile, aiming for open-pit mining and flotation processing.

Sumitomo Corp. is participating through a special purpose vehicle, holding an effective economic interest of approximately 12.5% in the project, aiming to secure a stable supply of copper.

Production is projected to begin in the early 2030s.

The project has approximately 101 million metric tons of measured & indicated resources and 256 million metric tons of inferred resources, with expected annual production of 37,000 mt of copper and 57,000 ounces of gold.

What Happens Next

01Advance drilling, feasibility studies, and environmental assessments.
02Obtain necessary permits for the project.
03Reach a final investment decision.
04Commence production in the early 2030s.
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How It Developed

Sumitomo Corp. joined the Dos Amigos copper-gold project in Chile.
Sumitomo's SPV subscribed for approximately C$48 million in Tintina Mines Limited's private placement.
The SPV will hold approximately a 25% equity interest in Tintina, giving Sumitomo an effective economic interest of approximately 12.5% in the project.
Proceeds will fund the acquisition of additional ownership interests and advance the project toward a final investment decision.
The project has measured & indicated mineral resources of approximately 101 million metric tons and inferred resources of approximately 256 million metric tons.
The project is expected to produce an average of 37,000 mt of copper and 57,000 ounces of gold per year.
Production is expected to begin in the early 2030s.

Sources

T1
Japan's Sumitomo joins copper-gold mine project in ChileNikkei Asia
T2
Sumitomo Corporation Increased Its Investment in Chile's Copper ...news.metal.com
T2
Participation in the Dos Amigos Copper-Gold Project in Chile through an ...sumitomocorp.com

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