Yes. The year of employment abroad must be with the Canadian company in a qualifying capacity; the corporate relationship with the U.S. entity must exist at the time of filing, not throughout the year. Document the acquisition and the year separately.
The relationship is tested at filing; the year is tested in the past
The regulation requires that the employee has been employed abroad continuously for one year within the preceding three years by a qualifying organization, and that the petitioner is a qualifying organization related to that employer. Nothing requires the parent-subsidiary link to have existed during the year abroad, so a technician whose four years were with the Canadian creamery qualifies once the creamery owns the U.S. dairy.
Prove the acquisition with the share purchase agreement, the closing statement, the U.S. entity's share register showing the creamery as owner and, if relevant, the corporate resolution approving the purchase. Prove the year with Canadian payroll, the employment contract and a duty statement for that period.
Prove that both entities are doing business with the creamery's sales records and the U.S. dairy's licences, invoices and payroll. Present the acquisition as the recent event it is; an adjudicator who finds an undisclosed closing date will re-examine everything else.