About Form W-8 ECI, Certificate of Foreign Person's Claim That Income Is Effectively Connected With the Conduct of a Trade or Business in the United States

You must give Form W-8 ECI to the withholding agent or payer if you are a foreign person and you are the beneficial owner of U.S. source income that is (or is deemed to be) effectively connected with the conduct of a trade or business within the United States.

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