EZZ Life Science Holdings (ASX:EZZ) has entered a manufacturing agreement with US-based GLSP, to produce nutritional supplements for the North American market, according to a Tuesday filing with the Australian bourse.

GLSP will manufacture EZZ-branded products in compliance with the US Food and Drug Administration regulations and under ISO standards, with third-party testing for microbiological and heavy metals safety, the filing added.

The agreement stipulates a production timeline of six to 10 weeks, starting from the receipt of all production requirements and the initial payment, while EZZ will retain full intellectual property rights, including patents and formulations.

Shares of the company fell 6% in recent Tuesday trade.