Note 8 – Customer Concentrations

Two customers accounted for approximately 61% of the Company’s revenue for the three months ended September 30, 2021, and four customers accounted for approximately 81% of the Company’s revenue for the three months ended September 30, 2020. Four customers accounted for approximately 62% of the Company’s revenue for the nine months ended September 30, 2021, and three customers accounted for approximately 78% of the Company’s revenue for the nine months ended September 30, 2020. Two customers accounted for approximately 70% of the accounts receivable balance as of September 30, 2021. Four customers accounted for approximately 92% of the accounts receivable balance as of December 31, 2020.