Capitalized lease obligations - The Company leases vehicles under non-cancelable capital lease agreements with a cost of $118,790 for the years ended October 31, 2016 and 2015 (accumulated amortization of $73,740 and $49,982 as of October 31, 2016 and 2015, respectively). Amortization expense for vehicles under non-cancelable lease agreements amounted to $23,758 for each of the years ended October 31, 2016 and 2015. The following is a schedule, by year, of future minimum lease payments under the capitalized leases together with the present value of the net minimum lease payments at October 31, 2016: Twelve months ending October 31, Amount 2017 $ 24,961 2018 18,697 2019 11,232 Total future minimum lease payments 54,890 Less: Amount of imputed interest ( 2,938 ) Present value of future minimum lease payments 51,952 Current portion of obligation under capital leases (22,950 ) Long-term portion $ 29,002 Operating facilities - The Company conducts its administrative operations in office facilities which are leased under five different rental agreements. In July 2016, with effective date January 1st, 2016, the Company renegotiated a lease agreement with an affiliate of our Chairman of the Board, for the headquarters and laboratory testing facilities in Dorado, Puerto Rico. The renegotiated lease incorporates additional space for the laboratory testing facility expansion. The lease agreement is for a five-year term, with a renewal option of five years, and monthly rental payments of $30,316 for the term of the lease agreement and renewal option. The lease agreement also requires the payment of utilities, property taxes, insurance and expenses incurred by the affiliate in connection with the maintenance of common areas. In December 2013, the Company entered into a lease agreement for the U.S. office facilities located in Plymouth, Pennsylvania. The lease was for a term of seven years, with monthly rental payments of $6,282 for the first three years, and $6,596, $6,794, $6,998, and $7,208, respectively, thereafter. In Dec