For the three months ended March 31, 2018, one customer represented approximately 14% of total net revenues. For the three months ended March 31, 2017, one customer represented approximately 11% of total net revenues. As of March 31, 2018, three customers accounted for approximately 38% of the Company’s net accounts receivable. As of December 31, 2017, three customers accounted for approximately 54% of the Company’s net accounts receivable.

Purchases from one supplier approximated $760,000, or 82%, of purchases for the three months ended March 31, 2018 and $595,000, or 68%, of purchases for the three months ended March 31, 2017. Total due to this supplier, net of deposits, was approximately $23,142 as of March 31, 2018, and $32,697 as of December 31, 2017.