Covers for bad debts, arising from insolvency of buyers, protracted defaults and contracts frustration due to various causes e.g. customs seizures of goods and loss arising from  political risks

Trade Credit Insurance, Business Credit Insurance, Export Credit insurance, or Credit Insurance
These policies provide indemnity against bad debts. Trade Credit insurance can include a component of political risk to insure the risk of non-payment by foreign buyers due to currency issues, political unrest, expropriation etc.