Minera Antucoya, which is owned 30% by Marubeni Corporation (hereinafter, “Marubeni”) and 70% by Antofagasta plc, one of the world’s leading copper producers, has announced that it has been awarded the Copper Mark*1 as of July 25, 2022.

The Copper Mark, founded by the International Copper Association (“ICA”)*2, is a comprehensive, credible assurance framework that demonstrates the copper industry’s responsible production practices and industry contribution to the United Nations SDGs (Sustainable Development Goals).

Minera Antucoya became the second Marubeni-owned copper mine, the ninth in Chile, and the 29th in the world to receive the Copper Mark. Marubeni will focus on the continuous improvement of responsible copper production in the copper industry and aim to strengthen the company’s commitment to the SDGs.

*1: Copper Mark
The Copper Mark was founded by the ICA, and the Copper Mark company was established as an independent entity in 2019. In order to be identified as a contributor to SDG 12 and receive the Copper Mark, copper producers are assessed against a set of 32 responsible production criteria.

*2: International Copper Association
The ICA leads the world’s copper industry on the issues critical to securing copper’s future growth and achieving the SDGs. ICA’s 36 members represent a majority of the world’s primary copper production, some of the largest mid-stream smelter/refiners, and 10 of the world’s largest copper fabricators (Headquartered in Washington, D.C.).

About Antofagasta:
Company Name:	Antofagasta plc
Location:	London, United Kingdom
Founded:	1888
Business Activities:	Mining, transportation, water business
Website:	http://www.antofagasta.co.uk/
About Minera Antucoya:
Location:	Republic of Chile, Antofagasta (Region II)
Ore Reserve:	Oxide, 746 million tons (As of Dec., 2021)
Copper Production:	Approx 80,000 tons (annual)
Production Period:	2015 to 2044
Ownership:	Company: Antofagasta plc Marubeni	Share: 70% 30%

Related press releases:
・Aug. 12, 2021
Minera Centinela Awarded the Copper Mark
https://www.marubeni.com/en/news/2021/release/00070.html

・Dec. 16, 2020
Minera Centinela Commits to Copper Mark
https://www.marubeni.com/en/news/2020/release/00035.html

・Apr. 3, 2020
Minera Centinela Moves to Convert Mining Operations to 100% Renewable Energy in 2022
https://www.marubeni.com/en/news/2020/release/20200403E.pdf

・May 30, 2019
Minera Antucoya Moves to Convert Mining Operations to 100% Renewable Energy in 2022
https://www.marubeni.com/en/news/2019/release/20190530E.pdf