As of March 31, 2019, the Company had no borrowings on its Silicon Valley Bank Loan and Security Agreement (“SVB Loan Agreement”) and was in compliance with all covenants. The SVB Loan Agreement provides for up to $4.0 million of debt financing and consists of a term loan (the “Term Loan”) of up to $850,000 and a revolving line of credit based on its outstanding accounts receivable (the “Revolving Line”) of up to $4.0 million. The Company intends to use the proceeds of the Term Loan for capital expenditures in connection with its laboratory expansion and the proceeds of the Revolving Line for working capital purposes. According to the Term Loan provisions, the Company intends to draw the full $850,000 by June 30, 2019.

Term Loan outstanding amounts will bear interest at a rate per annum equal to the greater of the Wall Street Journal Prime Rate (the “Prime Rate”) and 5.00%. The amount that may be borrowed under the Revolving Line is the lower of (i) $4.0 million or (ii) 80% of the Company’s eligible accounts receivable (as adjusted by SVB) minus any outstanding amounts under the Term Loan. Revolving Line outstanding amounts incur interest at a rate per annum equal to the Prime Rate plus 0.5%. The Company is also required to pay an unused Revolving Line facility fee monthly in arrears in an amount equal to 0.35% per annum of the average unused but available portion of the Revolving Line.