five days. As expected, the impact of this shutdown and unplanned maintenance in the third quarter of 2022 affected stream deliveries during the three months ended March 31, 2023.
Gold production at Andacollo has trended lower since the beginning of 2021 due to lower ore grades, as anticipated in the mine plan. According to Teck, the period of lower grades is expected to last through 2023, and the mine plan then anticipates a transition to higher grade ore as the next phase of mining is developed over the following years. Teck has reported that the current life of mine for Andacollo is expected to continue until 2035 and that additional permits or permit amendments will be required to execute the life of mine plan.
Khoemacau Project
Silver stream deliveries from Khoemacau were 427,500 ounces for the three months ended March 31, 2023, compared to approximately 115,210 ounces for the three months ended March 31, 2022. Increased stream deliveries resulted from the ramp-up of Khoemacau.
According to Khoemacau Copper Mining (Pty.) Limited (“KCM”), operations at Khoemacau continued at nameplate capacity through the quarter ended March 31, 2023, after the target production rate of 3.65 million tonnes per year (10,000 tonnes per day) was achieved in December 2022. As projected in the mine plan, KCM expects payable silver production in 2023 to range between 1.5 to 1.7 million ounces, which is slightly below the life of mine average due to lower silver grades in the upper portion of the Zone 5 deposit and the top-down mining sequence.
Mount Milligan
Gold stream deliveries from Mount Milligan were approximately 13,900 ounces for the three months ended March 31, 2023, compared to approximately 10,000 ounces for the three months ended March 31, 2022. Increased gold deliveries resulted from differences in the timing of shipments and settlements during the periods.
Copper stream deliveries from Mount Milligan were approximately 3.56 million pounds during the three months ended March 31, 2023, compared to approximately 2.69 million pounds during the three months ended March 31, 2022. Increased copper deliveries resulted from differences in the timing of shipments and settlements during the periods.
In 2023, Centerra Gold Inc. (“Centerra”) expects production of between 160,000 and 170,000 ounces of gold and 60 million to 70 million pounds of copper from Mount Milligan. Centerra expects gold and copper production to be higher in the second half of 2023 with approximately 30% to 35% of concentrate sales expected to occur in the fourth quarter of 2023. The lower production compared to 2022 is due to mine sequencing. Centerra continues to optimize the life of mine plan for Mount Milligan and anticipates increases in both gold and copper production for 2024 and 2025 when compared to the annual figures included in the most recent Technical Report, dated November 7, 2022.
Pueblo Viejo
Gold stream deliveries from Pueblo Viejo were approximately 7,400 ounces for the three months ended March 31, 2023, compared to approximately 7,100 ounces for the three months ended March 31, 2022.
Silver stream deliveries were approximately 362,200 ounces for the three months ended March 31, 2023, compared to approximately 274,500 ounces for the three months ended March 31, 2022. During the current quarter, an additional 5,700 ounces of silver were deferred. The deferred ounces are the result of a mechanism in the stream agreement that allows for the deferral of deliveries in a period if Barrick’s share of silver production is insufficient to cover its stream delivery obligations. The stream agreement terms include a fixed 70% silver recovery rate. If actual recovery rates fall below the contractual 70% recovery rate, ounces may be deferred and delivered in future periods as silver recovery allows. As of March 31, 2023, approximately 518,400 ounces remain deferred. We expect that silver recoveries could remain highly variable until the plant expansion project is complete and is running at full production levels. We do not expect material deliveries of deferred silver ounces while the plant ramps up to full production levels during 2023, and timing for the delivery of the entire deferred amount is uncertain.
On March 17, 2023, Barrick issued an updated Technical Report on the Pueblo Viejo mine to support the previously disclosed Mineral Resources and Mineral Reserves estimates for the mine as of December 31, 2022. According to Barrick, mining of the open pit is expected to continue to 2041 and processing of ore is expected to continue to 2044, with life of