On December 30, 2015, TOR Minerals International Inc. entered into the Sixth amendment to the loan agreement with American Bank, N.A. As a result of the company paying off the term loan owed to the Lender, the company no longer has regularly-scheduled principal and interest payments owed under its debt service obligations. Therefore, the Lender replaced the cash flow coverage ratio requirement comparing cash flow to debt service obligations with a new financial covenant designed to monitor the company's cash-flow and net earnings. Under the terms of the Amendment, the company is required to maintain positive net earnings before taxes, interest, depreciation, amortization and all other non-cash charges on a rolling four-quarter basis.

All other terms of the agreements remained unchanged.