Consolidated Results of Operations – Three Months Ended September 30, 2021 Compared to Three Months Ended September 30, 2020
Sales, net. For the three months ended September 30, 2021, consolidated sales, net were $20.4 as compared to $15.9 million for the same period in 2020. The increase is attributable to higher sales volumes which were partially offset with lower average realized prices. Third quarter 2021 gold sales volumes increased 36% from the same period in 2020 as a result of higher-grade ore processed. Average realized price for gold in third quarter 2021 decreased 6% from the same period in 2020.
Mine gross profit. For the three months ended September 30, 2021, we recorded $9.6 million mine gross profit compared to $5.1 million mine gross profit for the same period in 2020. The change is attributable to higher sales, as mentioned above, and slightly lower cash production costs.
General and administrative. For the three months ended September 30, 2021, general and administrative expenses totaled $1.4 million as compared to $0.6 million for the same period in 2020. The increase in 2021 was primarily the result of fully staffing the Company post Spin-Off as a standalone entity whereas the 2020 amount is an allocated amount from GRC based on time spent.
Exploration expenses. For the three months ended September 30, 2021, property exploration expenses totaled $2.0 million as compared to $0.8 million for the same period of 2020. The increased exploration expense was the result of drilling at the Golden Mile property to further define the resource and move toward a development decision.
Other expense, net. For the three months ended September 30, 2021, other expense, net did not materially change from the same period in 2020.
Income and mining tax expense. For the three months ended September 30, 2021, income and mining tax expense was $1.5 million as compared to $0.2 million for the same period in 2020. The increase is the result of our increased income before income and mining taxes and increased Nevada net proceeds of minerals tax as a result of increased metal sales. See Note 5 to the Condensed Consolidated Financial Statements.
Net income. For the three months ended September 30, 2021 we recorded net income of $4.6 million as compared to $3.5 million in the corresponding period for 2020. The increase is due to the changes in our consolidated results of operations as discussed above.
Consolidated Results of Operations – Nine Months Ended September 30, 2021 Compared to Nine Months Ended September 30, 2020
Sales, net. For the nine months ended September 30, 2021, consolidated sales, net were $67.0 million as compared to $30.3 million for the same period in 2020. The increase is primarily attributable to higher sales volumes. For the nine months ended September 30, 2021, gold sales volumes increased 118% from the same period in 2020 as a result of higher-grade ore mined and processed.
Mine gross profit. For the nine months ended September 30, 2021, we recorded $33.7 million mine gross profit compared to $4.4 million for the same period in 2020. The change is attributable to higher sales volumes and higher average realized prices for gold and silver, resulting in a lower cash cost after by-products per gold ounce sold. The lower cash cost per ounce is due to mining efficiencies and higher-grade ore mined in 2021 as compared to 2020 as well as no NRV expense related to our inventory in 2021, whereas in 2020, we recorded a $3.6 million NRV adjustment.
General and administrative. For the nine months ended September 30, 2021, general and administrative expenses totaled $8.7 million as compared to $1.8 million for the same period in 2020. The increase was primarily the result of non-recurring stock-based compensation and onboarding incentive compensation totaling $5.5 million relating to building out the Company’s staffing needs post Spin-Off which was recognized in the first quarter. While the Company anticipated working under the MSA for a longer period, the Company believed it would be prudent to fully staff up during the first quarter. On April 21, 2021, the Company was delivered official notice of cancellation of the MSA from GRC that the MSA was being canceled. See Note 2 to the Condensed Consolidated Financial Statements.