@Candida40 From the IRS website:
Who Must Provide Form W-8ECI
You must give Form W-8ECI 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 or are an entity
(including a foreign partnership or foreign trust) engaged
in a U.S. trade or business submitting this form on behalf
of your owners, partners, or beneficiaries.
My comments:
Your business is in a foreign country, but you are a US citizen. Check with a CPA -- I do not believe that you are required to complete and submit this form.