Thank you, Ann, and good morning, everyone. I want to thank all of the listeners for taking the time to join us. I look forward to outlining some of the results of the company from 2020. Following my opening remarks, Kim Perry, our CFO, will describe our financial results. I will then provide you with a high-level view of our plans for 2021 and a few closing remarks, and then we will take your questions.
On December 31, 2020, Gold Resource Corp. completed its spin-off of the Nevada Mining Unit to Fortitude Gold Corporation, a separate public company. The separation was completed by a way of a pro rata distribution of the outstanding shares of the newly created subsidiary to our shareholders on December 31, 2020.
I took over as CEO following Jason Reid's departure to run Fortitude. And early in the new year, we added 3 new Independent Directors, Ms. Lila Manassa Murphy, Mr. Joe Driscoll and Mr. Ron Little, to the Board of Directors. These additions to the company's leadership add the expertise necessary to focus on unlocking the value of our Mexican assets while implementing best-in-class governance.
Turning to our Mexican operations. I'm pleased to report that Gold Resource produced approximately 20,500 ounces of gold, 1.2 million ounces of silver, about 1,600 tonnes of copper, 7,700 tonnes of lead and 19,700 tonnes of zinc despite the 2-month mandatory shutdown in 2020 of the Don David Gold Mine in response to the COVID-19 pandemic. 2020 marked 2 milestones, 10 years of production and over $1 billion in revenues to date.
During the fourth quarter, we processed ore at an average rate of 1,700 tonnes per day compared to 2,000 tonnes per day in 2019, largely because of lost workdays related to COVID-19 protocols and safety measures to keep our workforce safe. As expected, overall recoveries declined in 2020 by approximately 5% due to the impact of a plant being shut down in the second quarter due to the pandemic, which accounted for 80% of the drop and the nature of where we are mining and the deposit accounted for the balance of the decline.
During the year, we realized about $3.3 million in cost savings and reduced diesel fuel consumption by close to 69% as a result of connecting to the power grid for cheaper, more efficient electricity. The project to connect to the power grid also improved local infrastructure and allowed access to electricity for approximately 25,000 families along the transmission road for the first time.
The paste fill plant, which was completed in 2019, processed 136,000 tonnes of tailings. Paste tailings are an effective method of recycling. They primarily provide additional ground support to ensure future mining operations occur in a safe and uninterrupted manner.
Construction of the dry stack tailings filtration plant continued during the year. These facilities are expected to be complete by midyear 2021. The dry stack facilitates and will accelerate reclamation of certain areas of the open pit mine as well as allow for the efficient and safe storage of tailings.
Finally, I want to note that the Don David Gold Mine earned the, I'm going to just give the English version, socially responsible enterprise award for the sixth consecutive year. That is an accomplishment that we are very, very proud of.
With that, I will turn the call over to Kim.