9. LINE OF CREDIT

In November 2022, the Company secured a bank line of credit with a limit of $1,000,000. In November 2023, the Company amended and restated this line of credit. The line of credit, as amended, had a maturity date of December 31, 2025, and bore interest at the fixed rate of 8.75%. As of March 31, 2026 and December 31, 2025, the balance due under the line of credit was $0.

In June 2023, Range Environmental secured a bank loan with a limit of $1,000,000. In November 2023, the loan amount was increased to $1,400,000 pursuant to which principal and accrued interest payments were required in March, June, September and December. The loan had a maturity date of December 31, 2025, and bore interest at the fixed rate of 7.75%. As of March 31, 2026 and December 31, 2025, the balance due under the loan was $0.

In September 2025, the Company consolidated both of the above-referenced credit facilities into one bank term loan in the principal amount of $1,800,000 with a maturity date of June 30, 2030 (refer to Note 10). The bank term loan bears interest at the fixed rate of 7.75%. Quarterly interest-only payments were required through December 2025 and beginning in 2026, quarterly principal and interest payments are required in March, June, September and December.