Skip to main content
The Globe and Mail
Support Quality Journalism.
The Globe and Mail
First Access to Latest
Investment News
Collection of curated
e-books and guides
Inform your decisions via
Globe Investor Tools
Just$1.99
per week
for first 24 weeks

Enjoy unlimited digital access
Cancel Anytime
Enjoy Unlimited Digital Access
Get full access to globeandmail.com
Just $1.99per week for the first 24weeks
Just $1.99per week for the first 24weeks
var select={root:".js-sub-pencil",control:".js-sub-pencil-control",open:"o-sub-pencil--open",closed:"o-sub-pencil--closed"},dom={},allowExpand=!0;function pencilInit(o){var e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];select.root=o,dom.root=document.querySelector(select.root),dom.root&&(dom.control=document.querySelector(select.control),dom.control.addEventListener("click",onToggleClicked),setPanelState(e),window.addEventListener("scroll",onWindowScroll),dom.root.removeAttribute("hidden"))}function isPanelOpen(){return dom.root.classList.contains(select.open)}function setPanelState(o){dom.root.classList[o?"add":"remove"](select.open),dom.root.classList[o?"remove":"add"](select.closed),dom.control.setAttribute("aria-expanded",o)}function onToggleClicked(){var l=!isPanelOpen();setPanelState(l)}function onWindowScroll(){window.requestAnimationFrame(function() {var l=isPanelOpen(),n=0===(document.body.scrollTop||document.documentElement.scrollTop);n||l||!allowExpand?n&&l&&(allowExpand=!0,setPanelState(!1)):(allowExpand=!1,setPanelState(!0))});}pencilInit(".js-sub-pencil",!1); // via darwin-bg var slideIndex = 0; carousel(); function carousel() { var i; var x = document.getElementsByClassName("subs_valueprop"); for (i = 0; i < x.length; i++) { x[i].style.display = "none"; } slideIndex++; if (slideIndex> x.length) { slideIndex = 1; } x[slideIndex - 1].style.display = "block"; setTimeout(carousel, 2500); } //

The Oyu Tolgoi mine in Mongolia is seen in 2012.

David Stanway/Reuters

Rio Tinto's $5.3-billion (U.S.) underground expansion of Oyu Tolgoi mine in Mongolia will increase its output in about four years when the copper market is in deficit, according to the company's deputy chief executive officer.

The investment to expand the copper and gold mine required courage due to the "challenging economic climate," Jean-Sébastien Jacques said at an event Saturday in Mongolia, according to an e-mail transcript provided by the company. A global surplus of refined copper could maintain pressure on the market with a number of mine expansions expected during 2016, Bloomberg Intelligence said in a April 7 report.

"The long-term need for copper remains strong and production from Oyu Tolgoi underground will commence when copper markets will be in deficit," said Mr. Jacques, who will become CEO in July, replacing Sam Walsh.

Story continues below advertisement

Work on the project will begin from the middle of this year and first production from the underground mine is expected in 2020, London-based Rio said last week. When the operation is fully running in 2027, Oyu Tolgoi is expected to produce more than 500,000 tonnes of copper a year.

Copper demand may catch up with supply next year and a deficit will then widen on a lack of new mines, Freeport-McMoRan Inc., the largest publicly traded producer, said in March. Oyu Tolgoi, about 80 kilometres north of the Chinese border, will rank as third largest in the world at full production, according to Wood Mackenzie Ltd.

Turquoise Hill Resources Ltd., which Rio Tinto controls through a 51-per-cent stake, owns 66 per cent of the deposit, according to data compiled by Bloomberg. Mongolia's state-owned Erdenes Oyu Tolgoi LLC holds the share of the mine not owned by Turquoise Hill.

Report an error
Tickers mentioned in this story
Due to technical reasons, we have temporarily removed commenting from our articles. We hope to have this fixed soon. Thank you for your patience. If you are looking to give feedback on our new site, please send it along to feedback@globeandmail.com. If you want to write a letter to the editor, please forward to letters@globeandmail.com.

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff.

We aim to create a safe and valuable space for discussion and debate. That means:

  • Treat others as you wish to be treated
  • Criticize ideas, not people
  • Stay on topic
  • Avoid the use of toxic and offensive language
  • Flag bad behaviour

If you do not see your comment posted immediately, it is being reviewed by the moderation team and may appear shortly, generally within an hour.

We aim to have all comments reviewed in a timely manner.

Comments that violate our community guidelines will not be posted.

UPDATED: Read our community guidelines here

Discussion loading ...

To view this site properly, enable cookies in your browser. Read our privacy policy to learn more.
How to enable cookies