Our international business operations are subject to numerous risks and uncertainties, including difficulties and costs associated with complying with a wide variety of complex laws, treaties and regulations; unexpected or conflicting changes in regulatory environments; currency fluctuations; tax rates that may exceed those in the United States; earnings that may be subject to withholding requirements; and the imposition of tariffs, embargoes, exchange controls or other restrictions.
Changes in governmental trade policies can lead to the imposition of new taxes, levies, duties, tariffs or quotas affecting agricultural commodities, fertilizer or industrial products. These can alter or impact costs, trade flows, demand for our products, access to raw materials, capital equipment, and other supplies, and regional supply and demand balances for our products. Proposed tariffs on imports into the United States, potential retaliatory tariffs on U.S. exports, and potential renegotiation of trade deals may impact our existing operations or our planned strategic ventures and could adversely affect our business, financial condition, results of operations and cash flows.
Our principal reporting currency is the U.S. dollar and our business operations and investments outside the United States increase our risk related to fluctuations in foreign currency exchange rates. The main currencies to which we are exposed, besides the U.S. dollar, are the Canadian dollar, the British pound and the euro. These exposures may change over time as business practices evolve and economic conditions change. We may selectively reduce some foreign currency exchange rate