Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (continued)
For the three months ended September 30, 2021, we had record total revenue of $5,211,169. This was an increase of $3,717,091 or 248.8%, compared to the three months ended September 30, 2020. For the nine months ended September 30, 2021, we had total revenue of $10,205,528. This was an increase of $2,666,068, or 35.4%, compared to the nine months ended September 30, 2020. The increase was principally due to higher raw material pricing for the 2021 third quarter, in addition to increased volume and improved product mix throughout the first nine months of 2021 compared to a year ago.
Gross profit was a record $1,302,368 for the three months ended September 30, 2021, compared to $459,139 for the same three months in 2020 and $2,667,958 and $1,406,261 for the nine months ended September 30, 2021, and 2020, respectively. These increases were due to volume, product mix, and improved manufacturing efficiency. In addition, $90,082 and $328,356 was related to the ERC and ARP credits for the three and nine months ended September 30, 2021, respectively.
Operating expenses were $425,341 and $391,582 for the three months ended September 30, 2021, and 2020, respectively and $1,187,353 and $1,223,459 for the nine months ended September 30, 2021, and 2020, respectively.
Income from operations was $877,027 and $67,557 for the three months ended September 30, 2021, and 2020, respectively, which included $164,755 related to the ERC and ARP credits during the third quarter of 2021. Income from operations was $1,480,605 and $182,802 for the nine months ended September 30, 2021, and 2020, respectively, which included $571,962 related to the ERC and ARP credits during the first nine months of 2021.
Consistent with our growth strategy, we have identified niche markets that can benefit from our expertise in custom powder solutions, such as near-infrared doped phosphors and short-wave infrared applications. These applications enable extended life of phosphors for specific nighttime identification needs of defense personnel and first responders.
New initiatives are also being pursued that utilize our vacuum hot press, cold isostatic press, and kilns for development projects, including diffusion bonding. We recently manufactured and sold conductive metal oxides for direct current sputtering of Tungsten Oxide and Molybdenum Oxide materials. We continue to invest in developing new products for all our markets including transparent conductive oxide systems for the solar and display markets as well as with our transparent electronic products. Those products involve research and development expense to accelerate time to market.
RESULTS OF OPERATIONS
Three and nine months ended September 30, 2021 (unaudited) compared to three and nine months ended September 30, 2020 (unaudited):
Revenue
For the three months ended September 30, 2021, we had total record revenue of $5,211,169. This was an increase of $3,717,091 or 248.8%, compared to the three months ended September 30, 2020. For the nine months ended September 30, 2021, we had total revenue of $10,205,528. This was an increase of $2,666,068 or 35.4%, compared to the nine months ended September 30, 2020. The increase was principally due to higher raw material pricing in the 2021 third quarter, in addition to increased volume and improved product mix throughout the first nine months of 2021. During 2020, total revenue was adversely impacted by lower volume, pricing, and COVID-19 related issues. We anticipate revenue for the fourth quarter of 2021 to be below the 2021 third quarter amount, primarily due to lower raw material pricing. Volume is expected to remain stable during the 2021 fourth quarter compared to the third quarter of 2021.
Gross profit
Gross profit was a record $1,302,368 for the three months ended September 30, 2021, compared to $459,139 for the same three months in 2020. This was an increase of $843,229 or 183.7%. Gross profit as a percentage of revenue (gross margin) was 25.0% for the third quarter of 2021 compared to 30.7% for the same period in 2020. Gross profit was $2,667,958 for the nine months ended September 30, 2021, compared to $1,406,261 for the first nine months of 2020. This was an increase of $1,261,697 or 89.7%. Gross margin was 26.1% for the first nine months of 2021 compared to 18.7% for the same period in 2020. These increases were due to volume, product mix, and improved manufacturing efficiency. In addition, $90,082 and $328,356 was related to the ERC and ARP credits for the three and nine months ended September 30, 2021, respectively.