【SMM Flash News】Rio Tinto Closes Canada's Diavik Diamond Mine After 23 Years

Published: Mar 30, 2026 23:57
Rio Tinto has officially ended production at its Diavik diamond mine in Canada's Northwest Territories after 23 years of operations, yielding over 150 million carats. While active mining has ceased at the sub-Arctic site, the company will continue to process and sell the remaining rough diamond inventory through 2026 and beyond. Extensive site rehabilitation activities, conducted in collaboration with Indigenous partners, are scheduled to run until 2029.

Data Source Statement: Except for publicly available information, all other data are processed by SMM based on publicly available information, market communication, and relying on SMM's internal database model. They are for reference only and do not constitute decision-making recommendations.

For any inquiries or for more information, please contact: lemonzhao@smm.cn
For more information on how to access our research reports, please contact:service.en@smm.cn
Related News
Hyundai Motor Group Says AI Cuts Production Line Downtime by 86%
12 hours ago
Hyundai Motor Group Says AI Cuts Production Line Downtime by 86%
Read More
Hyundai Motor Group Says AI Cuts Production Line Downtime by 86%
Hyundai Motor Group Says AI Cuts Production Line Downtime by 86%
Hyundai Motor Group held its AX (AI Transformation) Performance Presentation at its Yangjae headquarters in Seocho District, Seoul, on August 12, unveiling its AI application results and future strategy. The group said it is fully applying artificial intelligence across its business operations, from R&D to production, maintenance and customer response. By using AI, Hyundai Motor Group reduced the time required to analyze crash test-related data by 90% and cut production line downtime by 86%. The company also achieved annual cost savings of more than KRW 5.2 billion at production sites.
12 hours ago
Widening Price Spread Between Futures Contracts, Weak Downstream Consumption, Spot Premiums Continue to Fall [SMM South China Spot Copper Cathode Weekly Review]
12 hours ago
Widening Price Spread Between Futures Contracts, Weak Downstream Consumption, Spot Premiums Continue to Fall [SMM South China Spot Copper Cathode Weekly Review]
Read More
Widening Price Spread Between Futures Contracts, Weak Downstream Consumption, Spot Premiums Continue to Fall [SMM South China Spot Copper Cathode Weekly Review]
Widening Price Spread Between Futures Contracts, Weak Downstream Consumption, Spot Premiums Continue to Fall [SMM South China Spot Copper Cathode Weekly Review]
12 hours ago
Backwardation Spread Widened Sharply, Shanghai Spot Copper Discounts Expanded Rapidly [SMM Shanghai Spot Copper]
15 hours ago
Backwardation Spread Widened Sharply, Shanghai Spot Copper Discounts Expanded Rapidly [SMM Shanghai Spot Copper]
Read More
Backwardation Spread Widened Sharply, Shanghai Spot Copper Discounts Expanded Rapidly [SMM Shanghai Spot Copper]
Backwardation Spread Widened Sharply, Shanghai Spot Copper Discounts Expanded Rapidly [SMM Shanghai Spot Copper]
[SMM Shanghai Spot Copper] Looking ahead to tomorrow, SMM recorded Shanghai social inventory at 79,300 mt, up 1,000 mt WoW from this Monday; Jiangsu social inventory at 18,100 mt, flat WoW from this Monday. Overall inventory in east China edged up, and spot supply has yet to show any clear tightening. With delivery approaching, the intermonth Back price spread between futures contracts further widened to 600–750 yuan/mt. Higher contract rollover costs prompted some suppliers to accelerate spot sales, and quotes against the 2608 contract quickly moved lower accordingly; meanwhile, some deliverable-brand cargo meeting delivery standards flowed into the warrant channel, further differentiating spot cargo flows. After intraday discounts widened to around 300 yuan/mt, some market participants began to purchase, but trades clearly skewed toward cargo with lower prices, higher brand recognition, or better fit with their own production needs. Downstream buyers had ample choices and became more stringent in screening by brand and price, while actual end-use demand has yet to show any obvious improvement. As delivery neared, some suppliers had attempted to shift to quoting against the 2609 contract, with offers around a premium of 400 yuan/mt; the market may gradually enter a phase where the 2608 and 2609 contracts serve as dual benchmarks in parallel. It should be noted that the apparent uplift in premiums after contract rollover mainly came from the Back spread switch and does not indicate a substantive strengthening of spot supply and demand. Overall, if quoting continues against the 2608 contract, spot cargo may remain at relatively deep discounts; as the pricing benchmark gradually shifts to the 2609 contract, quotes are set to recover markedly, but transaction divergence among brands is expected to persist.
15 hours ago
Rio Tinto has officially ended production at its Diavik diamond mine i - Shanghai Metals Market (SMM)