Alyn and Deeside MP Mark Tami led a delegation of Broughton trade union leaders to meet Downing Street last year to press for a government loan to support the launch of the new A350.
Until now, when a British delegation travelled abroad seeking trade, Northern Ireland had to compete with Scotland, Wales and English regions, whereas the Republic of Ireland stood alone.
The American delegation at the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) meeting in Bangkok, Thailand, had sought a ban on the international trade of polar bear parts.
Mr Bickerstaffe now heads a delegation from Solidar, an alliance of trade unions and NGOs who are campaigning for the inclusion of social rights in the globalisation process.